March 2022 - Linux-stable-mirror

[PATCH] iommu/iova: Free all CPU rcache for retry when iova alloc failure

by yf.wang＠mediatek.com

From: Yunfei Wang <yf.wang(a)mediatek.com> In alloc_iova_fast function, if an iova alloc request fail, it will free the iova ranges present in the percpu iova rcaches and free global iova rcache and then retry, but flushing CPU iova rcaches only for each online CPU, which will cause incomplete rcache cleaning, and iova rcaches of not online CPU cannot be flushed, because iova rcaches may also lead to fragmentation of iova space, so the next retry action may still be fail. Based on the above, so need to flushing all iova rcaches for each possible CPU, use for_each_possible_cpu instead of for_each_online_cpu like in free_iova_rcaches function, so that all rcaches can be completely released to try replenishing IOVAs. Signed-off-by: Yunfei Wang <yf.wang(a)mediatek.com> Cc: <stable(a)vger.kernel.org> # 5.4.* --- drivers/iommu/iova.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c index b28c9435b898..5a0637cd7bc2 100644 --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -460,7 +460,7 @@ alloc_iova_fast(struct iova_domain *iovad, unsigned long size, /* Try replenishing IOVAs by flushing rcache. */ flush_rcache = false; - for_each_online_cpu(cpu) + for_each_possible_cpu(cpu) free_cpu_cached_iovas(cpu, iovad); free_global_cached_iovas(iovad); goto retry; -- 2.18.0

2 years, 10 months

3
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+ memcg-sync-flush-only-if-periodic-flush-is-delayed.patch added to -mm tree

by Andrew Morton

The patch titled Subject: memcg: sync flush only if periodic flush is delayed has been added to the -mm tree. Its filename is memcg-sync-flush-only-if-periodic-flush-is-delayed.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/memcg-sync-flush-only-if-periodic… and later at https://ozlabs.org/~akpm/mmotm/broken-out/memcg-sync-flush-only-if-periodic… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Shakeel Butt <shakeelb(a)google.com> Subject: memcg: sync flush only if periodic flush is delayed Daniel Dao has reported [1] a regression on workloads that may trigger a lot of refaults (anon and file). The underlying issue is that flushing rstat is expensive. Although rstat flush are batched with (nr_cpus * MEMCG_BATCH) stat updates, it seems like there are workloads which genuinely do stat updates larger than batch value within short amount of time. Since the rstat flush can happen in the performance critical codepaths like page faults, such workload can suffer greatly. This patch fixes this regression by making the rstat flushing conditional in the performance critical codepaths. More specifically, the kernel relies on the async periodic rstat flusher to flush the stats and only if the periodic flusher is delayed by more than twice the amount of its normal time window then the kernel allows rstat flushing from the performance critical codepaths. Now the question: what are the side-effects of this change? The worst that can happen is the refault codepath will see 4sec old lruvec stats and may cause false (or missed) activations of the refaulted page which may under-or-overestimate the workingset size. Though that is not very concerning as the kernel can already miss or do false activations. There are two more codepaths whose flushing behavior is not changed by this patch and we may need to come to them in future. One is the writeback stats used by dirty throttling and second is the deactivation heuristic in the reclaim. For now keeping an eye on them and if there is report of regression due to these codepaths, we will reevaluate then. Link: https://lore.kernel.org/all/CA+wXwBSyO87ZX5PVwdHm-=dBjZYECGmfnydUicUyrQqndg… [1] Link: https://lkml.kernel.org/r/20220304184040.1304781-1-shakeelb@google.com Fixes: 1f828223b799 ("memcg: flush lruvec stats in the refault") Signed-off-by: Shakeel Butt <shakeelb(a)google.com> Reported-by: Daniel Dao <dqminh(a)cloudflare.com> Tested-by: Ivan Babrou <ivan(a)cloudflare.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Koutn�� <mkoutny(a)suse.com> Cc: Frank Hofmann <fhofmann(a)cloudflare.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/memcontrol.h | 5 +++++ mm/memcontrol.c | 12 +++++++++++- mm/workingset.c | 2 +- 3 files changed, 17 insertions(+), 2 deletions(-) --- a/include/linux/memcontrol.h~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/include/linux/memcontrol.h @@ -999,6 +999,7 @@ static inline unsigned long lruvec_page_ } void mem_cgroup_flush_stats(void); +void mem_cgroup_flush_stats_delayed(void); void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); @@ -1442,6 +1443,10 @@ static inline void mem_cgroup_flush_stat { } +static inline void mem_cgroup_flush_stats_delayed(void) +{ +} + static inline void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) { --- a/mm/memcontrol.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/memcontrol.c @@ -628,6 +628,9 @@ static DECLARE_DEFERRABLE_WORK(stats_flu static DEFINE_SPINLOCK(stats_flush_lock); static DEFINE_PER_CPU(unsigned int, stats_updates); static atomic_t stats_flush_threshold = ATOMIC_INIT(0); +static u64 flush_next_time; + +#define FLUSH_TIME (2UL*HZ) static inline void memcg_rstat_updated(struct mem_cgroup *memcg, int val) { @@ -649,6 +652,7 @@ static void __mem_cgroup_flush_stats(voi if (!spin_trylock_irqsave(&stats_flush_lock, flag)) return; + flush_next_time = jiffies_64 + 2*FLUSH_TIME; cgroup_rstat_flush_irqsafe(root_mem_cgroup->css.cgroup); atomic_set(&stats_flush_threshold, 0); spin_unlock_irqrestore(&stats_flush_lock, flag); @@ -660,10 +664,16 @@ void mem_cgroup_flush_stats(void) __mem_cgroup_flush_stats(); } +void mem_cgroup_flush_stats_delayed(void) +{ + if (rstat_flush_time && time_after64(jiffies_64, flush_next_time)) + mem_cgroup_flush_stats(); +} + static void flush_memcg_stats_dwork(struct work_struct *w) { __mem_cgroup_flush_stats(); - queue_delayed_work(system_unbound_wq, &stats_flush_dwork, 2UL*HZ); + queue_delayed_work(system_unbound_wq, &stats_flush_dwork, FLUSH_TIME); } /** --- a/mm/workingset.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/workingset.c @@ -354,7 +354,7 @@ void workingset_refault(struct folio *fo mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file, nr); - mem_cgroup_flush_stats(); + mem_cgroup_flush_stats_delayed(); /* * Compare the distance to the existing workingset size. We * don't activate pages that couldn't stay resident even if _ Patches currently in -mm which might be from shakeelb(a)google.com are memcg-sync-flush-only-if-periodic-flush-is-delayed.patch memcg-replace-in_interrupt-with-in_task.patch memcg-refactor-mem_cgroup_oom.patch memcg-unify-force-charging-conditions.patch selftests-memcg-test-high-limit-for-single-entry-allocation.patch memcg-synchronously-enforce-memoryhigh-for-large-overcharges.patch

2 years, 10 months

1
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+ memcg-sync-flush-only-if-periodic-flush-is-delayed.patch added to -mm tree

by Andrew Morton

The patch titled Subject: memcg: sync flush only if periodic flush is delayed has been added to the -mm tree. Its filename is memcg-sync-flush-only-if-periodic-flush-is-delayed.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/memcg-sync-flush-only-if-periodic… and later at https://ozlabs.org/~akpm/mmotm/broken-out/memcg-sync-flush-only-if-periodic… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Shakeel Butt <shakeelb(a)google.com> Subject: memcg: sync flush only if periodic flush is delayed Daniel Dao has reported [1] a regression on workloads that may trigger a lot of refaults (anon and file). The underlying issue is that flushing rstat is expensive. Although rstat flush are batched with (nr_cpus * MEMCG_BATCH) stat updates, it seems like there are workloads which genuinely do stat updates larger than batch value within short amount of time. Since the rstat flush can happen in the performance critical codepaths like page faults, such workload can suffer greatly. This patch fixes this regression by making the rstat flushing conditional in the performance critical codepaths. More specifically, the kernel relies on the async periodic rstat flusher to flush the stats and only if the periodic flusher is delayed by more than twice the amount of its normal time window then the kernel allows rstat flushing from the performance critical codepaths. Now the question: what are the side-effects of this change? The worst that can happen is the refault codepath will see 4sec old lruvec stats and may cause false (or missed) activations of the refaulted page which may under-or-overestimate the workingset size. Though that is not very concerning as the kernel can already miss or do false activations. There are two more codepaths whose flushing behavior is not changed by this patch and we may need to come to them in future. One is the writeback stats used by dirty throttling and second is the deactivation heuristic in the reclaim. For now keeping an eye on them and if there is report of regression due to these codepaths, we will reevaluate then. Link: https://lore.kernel.org/all/CA+wXwBSyO87ZX5PVwdHm-=dBjZYECGmfnydUicUyrQqndg… [1] Link: https://lkml.kernel.org/r/20220304184040.1304781-1-shakeelb@google.com Fixes: 1f828223b799 ("memcg: flush lruvec stats in the refault") Signed-off-by: Shakeel Butt <shakeelb(a)google.com> Reported-by: Daniel Dao <dqminh(a)cloudflare.com> Tested-by: Ivan Babrou <ivan(a)cloudflare.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Koutn�� <mkoutny(a)suse.com> Cc: Frank Hofmann <fhofmann(a)cloudflare.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/memcontrol.h | 5 +++++ mm/memcontrol.c | 12 +++++++++++- mm/workingset.c | 2 +- 3 files changed, 17 insertions(+), 2 deletions(-) --- a/include/linux/memcontrol.h~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/include/linux/memcontrol.h @@ -999,6 +999,7 @@ static inline unsigned long lruvec_page_ } void mem_cgroup_flush_stats(void); +void mem_cgroup_flush_stats_delayed(void); void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); @@ -1442,6 +1443,10 @@ static inline void mem_cgroup_flush_stat { } +static inline void mem_cgroup_flush_stats_delayed(void) +{ +} + static inline void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) { --- a/mm/memcontrol.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/memcontrol.c @@ -628,6 +628,9 @@ static DECLARE_DEFERRABLE_WORK(stats_flu static DEFINE_SPINLOCK(stats_flush_lock); static DEFINE_PER_CPU(unsigned int, stats_updates); static atomic_t stats_flush_threshold = ATOMIC_INIT(0); +static u64 flush_next_time; + +#define FLUSH_TIME (2UL*HZ) static inline void memcg_rstat_updated(struct mem_cgroup *memcg, int val) { @@ -649,6 +652,7 @@ static void __mem_cgroup_flush_stats(voi if (!spin_trylock_irqsave(&stats_flush_lock, flag)) return; + flush_next_time = jiffies_64 + 2*FLUSH_TIME; cgroup_rstat_flush_irqsafe(root_mem_cgroup->css.cgroup); atomic_set(&stats_flush_threshold, 0); spin_unlock_irqrestore(&stats_flush_lock, flag); @@ -660,10 +664,16 @@ void mem_cgroup_flush_stats(void) __mem_cgroup_flush_stats(); } +void mem_cgroup_flush_stats_delayed(void) +{ + if (rstat_flush_time && time_after64(jiffies_64, flush_next_time)) + mem_cgroup_flush_stats(); +} + static void flush_memcg_stats_dwork(struct work_struct *w) { __mem_cgroup_flush_stats(); - queue_delayed_work(system_unbound_wq, &stats_flush_dwork, 2UL*HZ); + queue_delayed_work(system_unbound_wq, &stats_flush_dwork, FLUSH_TIME); } /** --- a/mm/workingset.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/workingset.c @@ -354,7 +354,7 @@ void workingset_refault(struct folio *fo mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file, nr); - mem_cgroup_flush_stats(); + mem_cgroup_flush_stats_delayed(); /* * Compare the distance to the existing workingset size. We * don't activate pages that couldn't stay resident even if _ Patches currently in -mm which might be from shakeelb(a)google.com are memcg-sync-flush-only-if-periodic-flush-is-delayed.patch memcg-replace-in_interrupt-with-in_task.patch memcg-refactor-mem_cgroup_oom.patch memcg-unify-force-charging-conditions.patch selftests-memcg-test-high-limit-for-single-entry-allocation.patch memcg-synchronously-enforce-memoryhigh-for-large-overcharges.patch

2 years, 10 months

1
0
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[failures] memcg-sync-flush-only-if-periodic-flush-is-delayed.patch removed from -mm tree

by Andrew Morton

The patch titled Subject: memcg: sync flush only if periodic flush is delayed has been removed from the -mm tree. Its filename was memcg-sync-flush-only-if-periodic-flush-is-delayed.patch This patch was dropped because it had testing failures ------------------------------------------------------ From: Shakeel Butt <shakeelb(a)google.com> Subject: memcg: sync flush only if periodic flush is delayed Daniel Dao has reported [1] a regression on workloads that may trigger a lot of refaults (anon and file). The underlying issue is that flushing rstat is expensive. Although rstat flush are batched with (nr_cpus * MEMCG_BATCH) stat updates, it seems like there are workloads which genuinely do stat updates larger than batch value within short amount of time. Since the rstat flush can happen in the performance critical codepaths like page faults, such workload can suffer greatly. This patch fixes this regression by making the rstat flushing conditional in the performance critical codepaths. More specifically, the kernel relies on the async periodic rstat flusher to flush the stats and only if the periodic flusher is delayed by more than twice the amount of its normal time window then the kernel allows rstat flushing from the performance critical codepaths. Now the question: what are the side-effects of this change? The worst that can happen is the refault codepath will see 4sec old lruvec stats and may cause false (or missed) activations of the refaulted page which may under-or-overestimate the workingset size. Though that is not very concerning as the kernel can already miss or do false activations. There are two more codepaths whose flushing behavior is not changed by this patch and we may need to come to them in future. One is the writeback stats used by dirty throttling and second is the deactivation heuristic in the reclaim. For now keeping an eye on them and if there is report of regression due to these codepaths, we will reevaluate then. Link: https://lore.kernel.org/all/CA+wXwBSyO87ZX5PVwdHm-=dBjZYECGmfnydUicUyrQqndg… [1] Link: https://lkml.kernel.org/r/20220304184040.1304781-1-shakeelb@google.com Fixes: 1f828223b799 ("memcg: flush lruvec stats in the refault") Signed-off-by: Shakeel Butt <shakeelb(a)google.com> Reported-by: Daniel Dao <dqminh(a)cloudflare.com> Tested-by: Ivan Babrou <ivan(a)cloudflare.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Michal Koutn�� <mkoutny(a)suse.com> Cc: Frank Hofmann <fhofmann(a)cloudflare.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/memcontrol.h | 5 +++++ mm/memcontrol.c | 12 +++++++++++- mm/workingset.c | 2 +- 3 files changed, 17 insertions(+), 2 deletions(-) --- a/include/linux/memcontrol.h~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/include/linux/memcontrol.h @@ -999,6 +999,7 @@ static inline unsigned long lruvec_page_ } void mem_cgroup_flush_stats(void); +void mem_cgroup_flush_stats_delayed(void); void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); @@ -1442,6 +1443,10 @@ static inline void mem_cgroup_flush_stat { } +static inline void mem_cgroup_flush_stats_delayed(void) +{ +} + static inline void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val) { --- a/mm/memcontrol.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/memcontrol.c @@ -628,6 +628,9 @@ static DECLARE_DEFERRABLE_WORK(stats_flu static DEFINE_SPINLOCK(stats_flush_lock); static DEFINE_PER_CPU(unsigned int, stats_updates); static atomic_t stats_flush_threshold = ATOMIC_INIT(0); +static u64 flush_next_time; + +#define FLUSH_TIME (2UL*HZ) static inline void memcg_rstat_updated(struct mem_cgroup *memcg, int val) { @@ -649,6 +652,7 @@ static void __mem_cgroup_flush_stats(voi if (!spin_trylock_irqsave(&stats_flush_lock, flag)) return; + flush_next_time = jiffies_64 + 2*FLUSH_TIME; cgroup_rstat_flush_irqsafe(root_mem_cgroup->css.cgroup); atomic_set(&stats_flush_threshold, 0); spin_unlock_irqrestore(&stats_flush_lock, flag); @@ -660,10 +664,16 @@ void mem_cgroup_flush_stats(void) __mem_cgroup_flush_stats(); } +void mem_cgroup_flush_stats_delayed(void) +{ + if (rstat_flush_time && time_after64(jiffies_64, flush_next_time)) + mem_cgroup_flush_stats(); +} + static void flush_memcg_stats_dwork(struct work_struct *w) { __mem_cgroup_flush_stats(); - queue_delayed_work(system_unbound_wq, &stats_flush_dwork, 2UL*HZ); + queue_delayed_work(system_unbound_wq, &stats_flush_dwork, FLUSH_TIME); } /** --- a/mm/workingset.c~memcg-sync-flush-only-if-periodic-flush-is-delayed +++ a/mm/workingset.c @@ -354,7 +354,7 @@ void workingset_refault(struct folio *fo mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file, nr); - mem_cgroup_flush_stats(); + mem_cgroup_flush_stats_delayed(); /* * Compare the distance to the existing workingset size. We * don't activate pages that couldn't stay resident even if _ Patches currently in -mm which might be from shakeelb(a)google.com are memcg-replace-in_interrupt-with-in_task.patch memcg-refactor-mem_cgroup_oom.patch memcg-unify-force-charging-conditions.patch selftests-memcg-test-high-limit-for-single-entry-allocation.patch memcg-synchronously-enforce-memoryhigh-for-large-overcharges.patch

2 years, 10 months

1
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stable-rc/queue/4.19 baseline: 31 runs, 1 regressions (v4.19.232-48-g569a74d08a4e)

by kernelci.org bot

stable-rc/queue/4.19 baseline: 31 runs, 1 regressions (v4.19.232-48-g569a74d08a4e) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------+-------+---------------+----------+----------------------------+------------ rk3399-gru-kevin | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/job/stable-rc/branch/queue%2F4.19/kernel/v4.19.23… Test: baseline Tree: stable-rc Branch: queue/4.19 Describe: v4.19.232-48-g569a74d08a4e URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: 569a74d08a4ef4602637fe1ba243e54e05ef1daa Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------+-------+---------------+----------+----------------------------+------------ rk3399-gru-kevin | arm64 | lab-collabora | gcc-10 | defconfig+arm64-chromebook | 1 Details: https://kernelci.org/test/plan/id/6225114369847cd9dfc6296c Results: 83 PASS, 7 FAIL, 0 SKIP Full config: defconfig+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-4.19/v4.19.232-48-g569a74d08a… HTML log: https://storage.kernelci.org//stable-rc/queue-4.19/v4.19.232-48-g569a74d08a… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2022… * baseline.bootrr.rockchip-i2s1-probed: https://kernelci.org/test/case/id/6225114469847cd9dfc629be failing since 0 day (last pass: v4.19.232-31-g5cf846953aa2, first fail: v4.19.232-44-gfd65e02206f4) 2022-03-06T19:53:17.091980 /lava-5826542/1/../bin/lava-test-case<8>[ 37.121956] <LAVA_SIGNAL_TESTCASE TEST_CASE_ID=rockchip-i2s1-probed RESULT=fail> 2022-03-06T19:53:17.092111

2 years, 10 months

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FAILED: patch "[PATCH] mm: prevent vm_area_struct::anon_name refcount saturation" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 96403e11283def1d1c465c8279514c9a504d8630 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan <surenb(a)google.com> Date: Fri, 4 Mar 2022 20:28:55 -0800 Subject: [PATCH] mm: prevent vm_area_struct::anon_name refcount saturation A deep process chain with many vmas could grow really high. With default sysctl_max_map_count (64k) and default pid_max (32k) the max number of vmas in the system is 2147450880 and the refcounter has headroom of 1073774592 before it reaches REFCOUNT_SATURATED (3221225472). Therefore it's unlikely that an anonymous name refcounter will overflow with these defaults. Currently the max for pid_max is PID_MAX_LIMIT (4194304) and for sysctl_max_map_count it's INT_MAX (2147483647). In this configuration anon_vma_name refcount overflow becomes theoretically possible (that still require heavy sharing of that anon_vma_name between processes). kref refcounting interface used in anon_vma_name structure will detect a counter overflow when it reaches REFCOUNT_SATURATED value but will only generate a warning and freeze the ref counter. This would lead to the refcounted object never being freed. A determined attacker could leak memory like that but it would be rather expensive and inefficient way to do so. To ensure anon_vma_name refcount does not overflow, stop anon_vma_name sharing when the refcount reaches REFCOUNT_MAX (2147483647), which still leaves INT_MAX/2 (1073741823) values before the counter reaches REFCOUNT_SATURATED. This should provide enough headroom for raising the refcounts temporarily. Link: https://lkml.kernel.org/r/20220223153613.835563-2-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb(a)google.com> Suggested-by: Michal Hocko <mhocko(a)suse.com> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: Alexey Gladkov <legion(a)kernel.org> Cc: Chris Hyser <chris.hyser(a)oracle.com> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Colin Cross <ccross(a)google.com> Cc: Cyrill Gorcunov <gorcunov(a)gmail.com> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: Davidlohr Bueso <dave(a)stgolabs.net> Cc: "Eric W. Biederman" <ebiederm(a)xmission.com> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Kees Cook <keescook(a)chromium.org> Cc: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Peter Collingbourne <pcc(a)google.com> Cc: Sasha Levin <sashal(a)kernel.org> Cc: Sumit Semwal <sumit.semwal(a)linaro.org> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Xiaofeng Cao <caoxiaofeng(a)yulong.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index dd3accaa4e6d..cf90b1fa2c60 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -161,15 +161,25 @@ static inline void anon_vma_name_put(struct anon_vma_name *anon_name) kref_put(&anon_name->kref, anon_vma_name_free); } +static inline +struct anon_vma_name *anon_vma_name_reuse(struct anon_vma_name *anon_name) +{ + /* Prevent anon_name refcount saturation early on */ + if (kref_read(&anon_name->kref) < REFCOUNT_MAX) { + anon_vma_name_get(anon_name); + return anon_name; + + } + return anon_vma_name_alloc(anon_name->name); +} + static inline void dup_anon_vma_name(struct vm_area_struct *orig_vma, struct vm_area_struct *new_vma) { struct anon_vma_name *anon_name = anon_vma_name(orig_vma); - if (anon_name) { - anon_vma_name_get(anon_name); - new_vma->anon_name = anon_name; - } + if (anon_name) + new_vma->anon_name = anon_vma_name_reuse(anon_name); } static inline void free_anon_vma_name(struct vm_area_struct *vma) diff --git a/mm/madvise.c b/mm/madvise.c index 081b1cded21e..1f2693dccf7b 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -113,8 +113,7 @@ static int replace_anon_vma_name(struct vm_area_struct *vma, if (anon_vma_name_eq(orig_name, anon_name)) return 0; - anon_vma_name_get(anon_name); - vma->anon_name = anon_name; + vma->anon_name = anon_vma_name_reuse(anon_name); anon_vma_name_put(orig_name); return 0;

2 years, 10 months

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stable-rc/queue/5.16 build: 130 builds: 4 failed, 126 passed, 6 errors, 4 warnings (v5.16.12-170-g37c4b7895200)

by kernelci.org bot

stable-rc/queue/5.16 build: 130 builds: 4 failed, 126 passed, 6 errors, 4 warnings (v5.16.12-170-g37c4b7895200) Full Build Summary: https://kernelci.org/build/stable-rc/branch/queue%2F5.16/kernel/v5.16.12-17… Tree: stable-rc Branch: queue/5.16 Git Describe: v5.16.12-170-g37c4b7895200 Git Commit: 37c4b78952002c9d098bc138fcf3197ceebe041b Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 7 unique architectures Build Failures Detected: arm: qcom_defconfig: (gcc-10) FAIL rpc_defconfig: (gcc-10) FAIL mips: ip27_defconfig: (gcc-10) FAIL ip28_defconfig: (gcc-10) FAIL Errors and Warnings Detected: arc: tinyconfig (gcc-10): 1 warning arm64: arm: qcom_defconfig (gcc-10): 1 error rpc_defconfig (gcc-10): 2 errors i386: mips: 32r2el_defconfig (gcc-10): 1 warning bigsur_defconfig (gcc-10): 1 error ci20_defconfig (gcc-10): 1 warning ip32_defconfig (gcc-10): 1 error rm200_defconfig (gcc-10): 1 warning sb1250_swarm_defconfig (gcc-10): 1 error riscv: x86_64: Errors summary: 3 expr: syntax error: unexpected argument ‘0xffffffff80000000’ 1 arch/arm/kernel/head.S:319: Error: missing expression -- `ldr r7,=0x' 1 arch/arm/kernel/head.S:319: Error: missing expression -- `ldr r3,=0x' 1 /tmp/kci/linux/build/../drivers/gpu/drm/panel/panel-edp.c:843: undefined reference to `drm_panel_dp_aux_backlight' Warnings summary: 1 drivers/block/paride/bpck.c:32: warning: "PC" redefined 1 arch/mips/boot/dts/ingenic/jz4780.dtsi:473.33-475.6: Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x" 1 arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0" 1 arch/arc/Makefile:26: ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0" -------------------------------------------------------------------------------- allnoconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/mips/boot/dts/ingenic/jz4780.dtsi:473.33-475.6: Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x" -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cu1000-neo_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cu1830-neo_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_r4k_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gcw0_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- milbeaut_m10v_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nommu_k210_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nommu_k210_sdcard_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-10) — FAIL, 1 error, 0 warnings, 0 section mismatches Errors: /tmp/kci/linux/build/../drivers/gpu/drm/panel/panel-edp.c:843: undefined reference to `drm_panel_dp_aux_backlight' -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/block/paride/bpck.c:32: warning: "PC" redefined -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-10) — FAIL, 2 errors, 0 warnings, 0 section mismatches Errors: arch/arm/kernel/head.S:319: Error: missing expression -- `ldr r7,=0x' arch/arm/kernel/head.S:319: Error: missing expression -- `ldr r3,=0x' -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rv32_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arc/Makefile:26: ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

2 years, 10 months

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[merged] memfd-fix-f_seal_write-after-shmem-huge-page-allocated.patch removed from -mm tree

by Andrew Morton

The patch titled Subject: memfd: fix F_SEAL_WRITE after shmem huge page allocated has been removed from the -mm tree. Its filename was memfd-fix-f_seal_write-after-shmem-huge-page-allocated.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Hugh Dickins <hughd(a)google.com> Subject: memfd: fix F_SEAL_WRITE after shmem huge page allocated Wangyong reports: after enabling tmpfs filesystem to support transparent hugepage with the following command: echo always > /sys/kernel/mm/transparent_hugepage/shmem_enabled the docker program tries to add F_SEAL_WRITE through the following command, but it fails unexpectedly with errno EBUSY: fcntl(5, F_ADD_SEALS, F_SEAL_WRITE) = -1. That is because memfd_tag_pins() and memfd_wait_for_pins() were never updated for shmem huge pages: checking page_mapcount() against page_count() is hopeless on THP subpages - they need to check total_mapcount() against page_count() on THP heads only. Make memfd_tag_pins() (compared > 1) as strict as memfd_wait_for_pins() (compared != 1): either can be justified, but given the non-atomic total_mapcount() calculation, it is better now to be strict. Bear in mind that total_mapcount() itself scans all of the THP subpages, when choosing to take an XA_CHECK_SCHED latency break. Also fix the unlikely xa_is_value() case in memfd_wait_for_pins(): if a page has been swapped out since memfd_tag_pins(), then its refcount must have fallen, and so it can safely be untagged. Link: https://lkml.kernel.org/r/a4f79248-df75-2c8c-3df-ba3317ccb5da@google.com Signed-off-by: Hugh Dickins <hughd(a)google.com> Reported-by: Zeal Robot <zealci(a)zte.com.cn> Reported-by: wangyong <wang.yong12(a)zte.com.cn> Cc: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: CGEL ZTE <cgel.zte(a)gmail.com> Cc: Kirill A. Shutemov <kirill(a)shutemov.name> Cc: Song Liu <songliubraving(a)fb.com> Cc: Yang Yang <yang.yang29(a)zte.com.cn> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/memfd.c | 40 ++++++++++++++++++++++++++++------------ 1 file changed, 28 insertions(+), 12 deletions(-) --- a/mm/memfd.c~memfd-fix-f_seal_write-after-shmem-huge-page-allocated +++ a/mm/memfd.c @@ -31,20 +31,28 @@ static void memfd_tag_pins(struct xa_state *xas) { struct page *page; - unsigned int tagged = 0; + int latency = 0; + int cache_count; lru_add_drain(); xas_lock_irq(xas); xas_for_each(xas, page, ULONG_MAX) { - if (xa_is_value(page)) - continue; - page = find_subpage(page, xas->xa_index); - if (page_count(page) - page_mapcount(page) > 1) + cache_count = 1; + if (!xa_is_value(page) && + PageTransHuge(page) && !PageHuge(page)) + cache_count = HPAGE_PMD_NR; + + if (!xa_is_value(page) && + page_count(page) - total_mapcount(page) != cache_count) xas_set_mark(xas, MEMFD_TAG_PINNED); + if (cache_count != 1) + xas_set(xas, page->index + cache_count); - if (++tagged % XA_CHECK_SCHED) + latency += cache_count; + if (latency < XA_CHECK_SCHED) continue; + latency = 0; xas_pause(xas); xas_unlock_irq(xas); @@ -73,7 +81,8 @@ static int memfd_wait_for_pins(struct ad error = 0; for (scan = 0; scan <= LAST_SCAN; scan++) { - unsigned int tagged = 0; + int latency = 0; + int cache_count; if (!xas_marked(&xas, MEMFD_TAG_PINNED)) break; @@ -87,10 +96,14 @@ static int memfd_wait_for_pins(struct ad xas_lock_irq(&xas); xas_for_each_marked(&xas, page, ULONG_MAX, MEMFD_TAG_PINNED) { bool clear = true; - if (xa_is_value(page)) - continue; - page = find_subpage(page, xas.xa_index); - if (page_count(page) - page_mapcount(page) != 1) { + + cache_count = 1; + if (!xa_is_value(page) && + PageTransHuge(page) && !PageHuge(page)) + cache_count = HPAGE_PMD_NR; + + if (!xa_is_value(page) && cache_count != + page_count(page) - total_mapcount(page)) { /* * On the last scan, we clean up all those tags * we inserted; but make a note that we still @@ -103,8 +116,11 @@ static int memfd_wait_for_pins(struct ad } if (clear) xas_clear_mark(&xas, MEMFD_TAG_PINNED); - if (++tagged % XA_CHECK_SCHED) + + latency += cache_count; + if (latency < XA_CHECK_SCHED) continue; + latency = 0; xas_pause(&xas); xas_unlock_irq(&xas); _ Patches currently in -mm which might be from hughd(a)google.com are tmpfs-support-for-file-creation-time-fix.patch mm-_install_special_mapping-apply-vm_locked_clear_mask.patch mm-thp-refix-__split_huge_pmd_locked-for-migration-pmd.patch mm-thp-clearpagedoublemap-in-first-page_add_file_rmap.patch mm-thp-fix-nr_file_mapped-accounting-in-page__file_rmap.patch

2 years, 10 months

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stable-rc/queue/5.4 baseline: 97 runs, 3 regressions (v5.4.182-57-g85357dafc890)

by kernelci.org bot

stable-rc/queue/5.4 baseline: 97 runs, 3 regressions (v5.4.182-57-g85357dafc890) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -------------------------+-------+--------------+----------+--------------------+------------ meson-gxm-q200 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 qemu_arm-virt-gicv2-uefi | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 qemu_arm-virt-gicv3-uefi | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/job/stable-rc/branch/queue%2F5.4/kernel/v5.4.182-… Test: baseline Tree: stable-rc Branch: queue/5.4 Describe: v5.4.182-57-g85357dafc890 URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git SHA: 85357dafc89074ab12f8e9bda4860aaa4a8a8f3c Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -------------------------+-------+--------------+----------+--------------------+------------ meson-gxm-q200 | arm64 | lab-baylibre | gcc-10 | defconfig | 1 Details: https://kernelci.org/test/plan/id/6224fdf1b20b2b2ef3c6296e Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2022… * baseline.login: https://kernelci.org/test/case/id/6224fdf1b20b2b2ef3c6296f failing since 0 day (last pass: v5.4.182-53-ge31c0b084082, first fail: v5.4.182-53-gb54ccf4e0b7c) platform | arch | lab | compiler | defconfig | regressions -------------------------+-------+--------------+----------+--------------------+------------ qemu_arm-virt-gicv2-uefi | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6224f59147ad83fadfc629a2 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2022… * baseline.login: https://kernelci.org/test/case/id/6224f59247ad83fadfc629a3 failing since 80 days (last pass: v5.4.165-9-g27d736c7bdee, first fail: v5.4.165-18-ge938927511cb) platform | arch | lab | compiler | defconfig | regressions -------------------------+-------+--------------+----------+--------------------+------------ qemu_arm-virt-gicv3-uefi | arm | lab-baylibre | gcc-10 | multi_v7_defconfig | 1 Details: https://kernelci.org/test/plan/id/6224f57c47ad83fadfc62995 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… HTML log: https://storage.kernelci.org//stable-rc/queue-5.4/v5.4.182-57-g85357dafc890… Rootfs: http://storage.kernelci.org/images/rootfs/buildroot/buildroot-baseline/2022… * baseline.login: https://kernelci.org/test/case/id/6224f57c47ad83fadfc62996 failing since 80 days (last pass: v5.4.165-9-g27d736c7bdee, first fail: v5.4.165-18-ge938927511cb)

2 years, 10 months

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stable-rc/queue/5.15 build: 136 builds: 7 failed, 129 passed, 17 errors, 10 warnings (v5.15.26-251-g706d21d8c05c)

by kernelci.org bot

stable-rc/queue/5.15 build: 136 builds: 7 failed, 129 passed, 17 errors, 10 warnings (v5.15.26-251-g706d21d8c05c) Full Build Summary: https://kernelci.org/build/stable-rc/branch/queue%2F5.15/kernel/v5.15.26-25… Tree: stable-rc Branch: queue/5.15 Git Describe: v5.15.26-251-g706d21d8c05c Git Commit: 706d21d8c05cf9fb32049cf14979c9952c9290a2 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 7 unique architectures Build Failures Detected: arm64: defconfig: (gcc-10) FAIL defconfig+arm64-chromebook: (gcc-10) FAIL arm: rpc_defconfig: (gcc-10) FAIL mips: decstation_64_defconfig: (gcc-10) FAIL gpr_defconfig: (gcc-10) FAIL ip27_defconfig: (gcc-10) FAIL ip28_defconfig: (gcc-10) FAIL Errors and Warnings Detected: arc: arm64: defconfig (gcc-10): 1 error, 1 warning defconfig+arm64-chromebook (gcc-10): 1 error, 1 warning arm: rpc_defconfig (gcc-10): 4 errors i386: mips: 32r2el_defconfig (gcc-10): 1 warning cavium_octeon_defconfig (gcc-10): 1 error decstation_64_defconfig (gcc-10): 1 error fuloong2e_defconfig (gcc-10): 1 error, 1 warning gpr_defconfig (gcc-10): 3 errors, 2 warnings ip32_defconfig (gcc-10): 1 error lemote2f_defconfig (gcc-10): 1 error, 1 warning loongson2k_defconfig (gcc-10): 1 error, 1 warning loongson3_defconfig (gcc-10): 1 error nlm_xlp_defconfig (gcc-10): 1 error rm200_defconfig (gcc-10): 2 warnings riscv: x86_64: Errors summary: 8 expr: syntax error: unexpected argument ‘0xffffffff80000000’ 2 arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv3m 2 arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’ 2 arch/arm64/net/bpf_jit_comp.c:791:7: error: implicit declaration of function ‘bpf_pseudo_func’ [-Werror=implicit-function-declaration] 1 drivers/net/slip/slip.c:960:7: error: ‘END’ undeclared (first use in this function) 1 drivers/net/slip/slip.c:930:11: error: ‘END’ undeclared (first use in this function) 1 drivers/net/slip/slip.c:1393:54: error: ‘END’ undeclared (first use in this function) Warnings summary: 2 net/mac80211/mlme.c:4370:1: warning: the frame size of 1200 bytes is larger than 1024 bytes [-Wframe-larger-than=] 2 drivers/net/hamradio/mkiss.c:35: warning: "END" redefined 2 cc1: some warnings being treated as errors 1 drivers/net/slip/slip.h:44: warning: "END" redefined 1 drivers/block/paride/bpck.c:32: warning: "PC" redefined 1 arch/mips/include/asm/asm.h:68: warning: "END" redefined 1 arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0" ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0" -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cu1830-neo_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_64_defconfig (mips, gcc-10) — FAIL, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — FAIL, 1 error, 1 warning, 0 section mismatches Errors: arch/arm64/net/bpf_jit_comp.c:791:7: error: implicit declaration of function ‘bpf_pseudo_func’ [-Werror=implicit-function-declaration] Warnings: cc1: some warnings being treated as errors -------------------------------------------------------------------------------- defconfig+arm64-chromebook (arm64, gcc-10) — FAIL, 1 error, 1 warning, 0 section mismatches Errors: arch/arm64/net/bpf_jit_comp.c:791:7: error: implicit declaration of function ‘bpf_pseudo_func’ [-Werror=implicit-function-declaration] Warnings: cc1: some warnings being treated as errors -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-10) — PASS, 1 error, 1 warning, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ Warnings: drivers/net/slip/slip.h:44: warning: "END" redefined -------------------------------------------------------------------------------- gcw0_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-10) — FAIL, 3 errors, 2 warnings, 0 section mismatches Errors: drivers/net/slip/slip.c:930:11: error: ‘END’ undeclared (first use in this function) drivers/net/slip/slip.c:960:7: error: ‘END’ undeclared (first use in this function) drivers/net/slip/slip.c:1393:54: error: ‘END’ undeclared (first use in this function) Warnings: drivers/net/hamradio/mkiss.c:35: warning: "END" redefined arch/mips/include/asm/asm.h:68: warning: "END" redefined -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-10) — PASS, 1 error, 1 warning, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ Warnings: net/mac80211/mlme.c:4370:1: warning: the frame size of 1200 bytes is larger than 1024 bytes [-Wframe-larger-than=] -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson2k_defconfig (mips, gcc-10) — PASS, 1 error, 1 warning, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ Warnings: net/mac80211/mlme.c:4370:1: warning: the frame size of 1200 bytes is larger than 1024 bytes [-Wframe-larger-than=] -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- milbeaut_m10v_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-10) — PASS, 1 error, 0 warnings, 0 section mismatches Errors: expr: syntax error: unexpected argument ‘0xffffffff80000000’ -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nommu_k210_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nommu_k210_sdcard_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omega2p_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- oxnas_v6_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: drivers/net/hamradio/mkiss.c:35: warning: "END" redefined drivers/block/paride/bpck.c:32: warning: "PC" redefined -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-10) — FAIL, 4 errors, 0 warnings, 0 section mismatches Errors: arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv3m arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’ arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv3m arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’ -------------------------------------------------------------------------------- rs90_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rv32_defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vf610m4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

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Linux-stable-mirror March 2022