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[PATCH v4 0/7] selftests/mm: Fix false positives and skip unsupported tests

by Aboorva Devarajan

Hi all, This patch series addresses false positives in the generic mm selftests and skips tests that cannot run correctly due to missing features or system limitations. v3: https://lore.kernel.org/all/20250729053403.1071807-1-aboorvad@linux.ibm.com/ Changes in v4: - Rebased onto the latest mm-new branch, top commit of the base is commit 916e1f041670 ("drivers/base: move memory_block_add_nid() into the caller"). Dropped the v3 patches that had already been merged and re-applied them to the mm-new branch. - Only Patch 4 is updated to address review comments, all other patches remain unchanged from v3. --- v2: https://lore.kernel.org/all/20250703060656.54345-1-aboorvad@linux.ibm.com/ Changes in v3: - Rebased onto the latest mm-new branch, top commit of the base is commit 0709ddf8951f ("mm: add zblock allocator"). - Minor refactor based on the review comments. - Included the tags from the previous version. --- v1: https://lore.kernel.org/all/20250616160632.35250-1-aboorvad@linux.ibm.com/ Changes in v2: - Rebased onto the mm-new branch, top commit of the base is commit 3b4a8ad89f7e ("mm: add zblock allocator"). - Split some patches for clarity. - Updated virtual_address_range test to support testing 4PB VA on PPC64. - Added proper Fixes: tags. - Included a patch to skip a failing userfaultfd test when unsupported, instead of reporting a failure. --- Please let us know if you have any further comments. Thanks, Aboorva Aboorva Devarajan (3): selftests/mm: fix child process exit codes in ksm_functional_tests selftests/mm: skip thuge-gen test if system is not setup properly selftests/mm: skip hugepage-mremap test if userfaultfd unavailable Donet Tom (4): mm/selftests: Fix incorrect pointer being passed to mark_range() selftests/mm: Add support to test 4PB VA on PPC64 selftest/mm: Fix ksm_funtional_test failures mm/selftests: Fix split_huge_page_test failure on systems with 64KB page size tools/testing/selftests/mm/cow.c | 5 ---- tools/testing/selftests/mm/hugepage-mremap.c | 16 +++++++++-- .../selftests/mm/ksm_functional_tests.c | 28 +++++++++++++------ .../selftests/mm/split_huge_page_test.c | 22 +++++++++------ tools/testing/selftests/mm/thuge-gen.c | 11 +++++--- tools/testing/selftests/mm/uffd-wp-mremap.c | 5 ---- .../selftests/mm/virtual_address_range.c | 13 ++++++++- tools/testing/selftests/mm/vm_util.h | 5 ++++ 8 files changed, 71 insertions(+), 34 deletions(-) -- 2.47.1

4 months

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[PATCH] kselftest/futex : fixed typo errors

by hariconscious＠gmail.com

From: HariKrishna <hariconscious(a)gmail.com> fixed typo errors in kselftest of futex module Signed-off-by: HariKrishna <hariconscious(a)gmail.com> --- .../testing/selftests/futex/functional/futex_priv_hash.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/futex/functional/futex_priv_hash.c b/tools/testing/selftests/futex/functional/futex_priv_hash.c index 24a92dc94eb8..bbdb63b10eef 100644 --- a/tools/testing/selftests/futex/functional/futex_priv_hash.c +++ b/tools/testing/selftests/futex/functional/futex_priv_hash.c @@ -115,7 +115,7 @@ static void usage(char *prog) { printf("Usage: %s\n", prog); printf(" -c Use color\n"); - printf(" -g Test global hash instead intead local immutable \n"); + printf(" -g Test global hash instead of local immutable \n"); printf(" -h Display this help message\n"); printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n", VQUIET, VCRITICAL, VINFO); @@ -180,7 +180,7 @@ int main(int argc, char *argv[]) if (ret != 0) ksft_exit_fail_msg("pthread_join() failed: %d, %m\n", ret); - /* First thread, has to initialiaze private hash */ + /* First thread, has to initialize private hash */ futex_slots1 = futex_hash_slots_get(); if (futex_slots1 <= 0) { ksft_print_msg("Current hash buckets: %d\n", futex_slots1); @@ -235,14 +235,14 @@ int main(int argc, char *argv[]) ksft_test_result(counter == MAX_THREADS, "Created of waited for %d of %d threads\n", counter, MAX_THREADS); counter = 0; - /* Once the user set something, auto reisze must be disabled */ + /* Once the user set something, auto resize must be disabled */ ret = pthread_barrier_init(&barrier_main, NULL, MAX_THREADS); create_max_threads(thread_lock_fn); join_max_threads(); ret = futex_hash_slots_get(); - ksft_test_result(ret == 2, "No more auto-resize after manaul setting, got %d\n", + ksft_test_result(ret == 2, "No more auto-resize after manual setting, got %d\n", ret); futex_hash_slots_set_must_fail(1 << 29, 0); -- 2.43.0

4 months

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[PATCH][next] selftests/futex: Fix help test for option -g

by Colin Ian King

Currently the help text for the -g option contains a spelling mistake, a space before a \n and is a little hard to comprehend. Fix it. Fixes: cda95faef7bc ("selftests/futex: Add futex_priv_hash") Signed-off-by: Colin Ian King <colin.i.king(a)gmail.com> --- tools/testing/selftests/futex/functional/futex_priv_hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/futex/functional/futex_priv_hash.c b/tools/testing/selftests/futex/functional/futex_priv_hash.c index aea001ac4946..93c636d6bf80 100644 --- a/tools/testing/selftests/futex/functional/futex_priv_hash.c +++ b/tools/testing/selftests/futex/functional/futex_priv_hash.c @@ -132,7 +132,7 @@ static void usage(char *prog) { printf("Usage: %s\n", prog); printf(" -c Use color\n"); - printf(" -g Test global hash instead intead local immutable \n"); + printf(" -g Test global hash instead of private hash\n"); printf(" -h Display this help message\n"); printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n", VQUIET, VCRITICAL, VINFO); -- 2.50.1

4 months

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[PATCH v2] selftests:ftrace:Improved event description

by Mehdi Ben Hadj Khelifa

-Changed pid to PID to make it more clear -Changed 'restricts' to 'restrict' instead to align with imperative form Signed-off-by: Mehdi Ben Hadj Khelifa <mehdi.benhadjkhelifa(a)gmail.com> --- Changelog: Changes since v1: - Changed patch title to align with conventions. - Reverted a typo in event/event-pid.tc "Event tracing" => "event tracing" - Changed patch development to 6.17-rc2 from 6.16-rc7 tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc | 2 +- tools/testing/selftests/ftrace/test.d/event/event-pid.tc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc index 9933ed24f901..aa83be738e69 100644 --- a/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc +++ b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc @@ -1,6 +1,6 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 -# description: event tracing - restricts events based on pid notrace filtering +# description: event tracing - restrict events based on PID notrace filtering # requires: set_event events/sched set_event_pid set_event_notrace_pid # flags: instance diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc index 7f5f97dffdc3..90ba7c794062 100644 --- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc +++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc @@ -1,6 +1,6 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 -# description: event tracing - restricts events based on pid +# description: event tracing - restrict events based on PID # requires: set_event set_event_pid events/sched # flags: instance -- 2.50.1

4 months

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[PATCH 0/3] selftests/nolibc: enable qemu-system tests with LLVM builds

by Thomas Weißschuh

Currently the test setup does not support running nolibc-test built with LLVM in qemu-system. Enable this. FYI, sparc32 on LLVM seems to be broken at the moment. To me this looks like a LLVM regression, emitting invalid object code. Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Thomas Weißschuh (3): selftests/nolibc: deduplicate invocations of toplevel Makefile selftests/nolibc: don't pass CC to toplevel Makefile selftests/nolibc: always compile the kernel with GCC tools/testing/selftests/nolibc/Makefile.nolibc | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) --- base-commit: b9e50363178a40c76bebaf2f00faa2b0b6baf8d1 change-id: 20250719-nolibc-llvm-system-311762b62829 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

4 months

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[PATCH] selftests/fs/mount-notify: Fix typo memebers -> members

by Xing Guo

I reviewed these 2 tests and found there's a typo. Signed-off-by: Xing Guo <higuoxing(a)gmail.com> --- .../selftests/filesystems/mount-notify/mount-notify_test.c | 2 +- .../selftests/filesystems/mount-notify/mount-notify_test_ns.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c index 63ce708d93ed..18147594d619 100644 --- a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c +++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c @@ -208,7 +208,7 @@ static void verify_mount_ids(struct __test_metadata *const _metadata, } } } - // Check that all list1 memebers can be found in list2. Together with + // Check that all list1 members can be found in list2. Together with // the above it means that the list1 and list2 represent the same sets. for (i = 0; i < num; i++) { for (j = 0; j < num; j++) { diff --git a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c index 090a5ca65004..67c05bbc5e45 100644 --- a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c +++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c @@ -236,7 +236,7 @@ static void verify_mount_ids(struct __test_metadata *const _metadata, } } } - // Check that all list1 memebers can be found in list2. Together with + // Check that all list1 members can be found in list2. Together with // the above it means that the list1 and list2 represent the same sets. for (i = 0; i < num; i++) { for (j = 0; j < num; j++) { -- 2.50.1

4 months

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[PATCH] selftests net/socket.c: removed warnings from unused returns

by Alex Tran

socket.c: In function ‘run_tests’: socket.c:59:25: warning: ignoring return value of ‘strerror_r’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 59 | strerror_r(-s->expect, err_string1, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ socket.c:60:25: warning: ignoring return value of ‘strerror_r’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 60 | strerror_r(errno, err_string2, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ socket.c:73:33: warning: ignoring return value of ‘strerror_r’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 73 | strerror_r(errno, err_string1, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Alex Tran <alex.t.tran(a)gmail.com> --- tools/testing/selftests/net/socket.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/net/socket.c b/tools/testing/selftests/net/socket.c index db1aeb8c5d1e..7c597c583df3 100644 --- a/tools/testing/selftests/net/socket.c +++ b/tools/testing/selftests/net/socket.c @@ -39,6 +39,8 @@ static int run_tests(void) { char err_string1[ERR_STRING_SZ]; char err_string2[ERR_STRING_SZ]; + char *err_message1; + char *err_message2; int i, err; err = 0; @@ -56,13 +58,13 @@ static int run_tests(void) errno == -s->expect) continue; - strerror_r(-s->expect, err_string1, ERR_STRING_SZ); - strerror_r(errno, err_string2, ERR_STRING_SZ); + err_message1 = strerror_r(-s->expect, err_string1, ERR_STRING_SZ); + err_message2 = strerror_r(errno, err_string2, ERR_STRING_SZ); fprintf(stderr, "socket(%d, %d, %d) expected " "err (%s) got (%s)\n", s->domain, s->type, s->protocol, - err_string1, err_string2); + err_message1, err_message2); err = -1; break; @@ -70,12 +72,12 @@ static int run_tests(void) close(fd); if (s->expect < 0) { - strerror_r(errno, err_string1, ERR_STRING_SZ); + err_message1 = strerror_r(errno, err_string1, ERR_STRING_SZ); fprintf(stderr, "socket(%d, %d, %d) expected " "success got err (%s)\n", s->domain, s->type, s->protocol, - err_string1); + err_message1); err = -1; break; -- 2.34.1

4 months

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[PATCH net] selftests: rtnetlink: fix addrlft test flakiness on power-saving systems

by Hangbin Liu

Jakub reported that the rtnetlink test for the preferred lifetime of an address has become quite flaky. The issue started appearing around the 6.16 merge window in May, and the test fails with: FAIL: preferred_lft addresses remaining The flakiness might be related to power-saving behavior, as address expiration is handled by a "power-efficient" workqueue. To address this, use slowwait to check more frequently whether the address still exists. This reduces the likelihood of the system entering a low-power state during the test, improving reliability. Reported-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Hangbin Liu <liuhangbin(a)gmail.com> --- tools/testing/selftests/net/rtnetlink.sh | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 2e8243a65b50..49141254065c 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -291,6 +291,17 @@ kci_test_route_get() end_test "PASS: route get" } +check_addr_not_exist() +{ + dev=$1 + addr=$2 + if ip addr show dev $dev | grep -q $addr; then + return 1 + else + return 0 + fi +} + kci_test_addrlft() { for i in $(seq 10 100) ;do @@ -298,9 +309,8 @@ kci_test_addrlft() run_cmd ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1)) done - sleep 5 - run_cmd_grep_fail "10.23.11." ip addr show dev "$devdummy" - if [ $? -eq 0 ]; then + slowwait 5 check_addr_not_exist "$devdummy" "10.23.11." + if [ $? -eq 1 ]; then check_err 1 end_test "FAIL: preferred_lft addresses remaining" return -- 2.46.0

4 months

3
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[PATCH] KVM: loongarch: selftests: Remove common tests built by TEST_GEN_PROGS_COMMON

by Dong Yang

Remove the common KVM test cases already added to TEST_GEN_PROGS_COMMON as following: demand_paging_test dirty_log_test guest_print_test kvm_binary_stats_test kvm_create_max_vcpus kvm_page_table_test set_memory_region_test Fixes: a867688c8cbb ("KVM: selftests: Add supported test cases for LoongArch") Signed-off-by: Quan Zhou <zhouquan(a)iscas.ac.cn> Signed-off-by: Dong Yang <dayss1224(a)gmail.com> --- tools/testing/selftests/kvm/Makefile.kvm | 7 ------- 1 file changed, 7 deletions(-) diff --git a/tools/testing/selftests/kvm/Makefile.kvm b/tools/testing/selftests/kvm/Makefile.kvm index 38b95998e1e6..d2ad85a8839f 100644 --- a/tools/testing/selftests/kvm/Makefile.kvm +++ b/tools/testing/selftests/kvm/Makefile.kvm @@ -199,17 +199,10 @@ TEST_GEN_PROGS_riscv += get-reg-list TEST_GEN_PROGS_riscv += steal_time TEST_GEN_PROGS_loongarch += coalesced_io_test -TEST_GEN_PROGS_loongarch += demand_paging_test TEST_GEN_PROGS_loongarch += dirty_log_perf_test -TEST_GEN_PROGS_loongarch += dirty_log_test -TEST_GEN_PROGS_loongarch += guest_print_test TEST_GEN_PROGS_loongarch += hardware_disable_test -TEST_GEN_PROGS_loongarch += kvm_binary_stats_test -TEST_GEN_PROGS_loongarch += kvm_create_max_vcpus -TEST_GEN_PROGS_loongarch += kvm_page_table_test TEST_GEN_PROGS_loongarch += memslot_modification_stress_test TEST_GEN_PROGS_loongarch += memslot_perf_test -TEST_GEN_PROGS_loongarch += set_memory_region_test SPLIT_TESTS += arch_timer SPLIT_TESTS += get-reg-list -- 2.34.1

4 months

3
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[PATCH net 0/8] mptcp: misc fixes for v6.17-rc

by Matthieu Baerts (NGI0)

Here are various fixes: - Patch 1: Better handling SKB extension allocation failures. A fix for v5.7. - Patches 2, 3: Avoid resetting MPTCP limits when flushing MPTCP endpoints. With a validation in the selftests. Fixes for v5.7. - Patches 4, 5, 6: Disallow '0' as ADD_ADDR retransmission timeout. With a preparation patch, and a validation in the selftests. Fixes for v5.11. - Patches 8, 9: Fix C23 extension warnings in the selftests, spotted by GCC. Fixes for v6.16. Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> --- Christoph Paasch (1): mptcp: drop skb if MPTCP skb extension allocation fails Geliang Tang (3): mptcp: remove duplicate sk_reset_timer call mptcp: disable add_addr retransmission when timeout is 0 selftests: mptcp: disable add_addr retrans in endpoint_tests Matthieu Baerts (NGI0) (4): mptcp: pm: kernel: flush: do not reset ADD_ADDR limit selftests: mptcp: pm: check flush doesn't reset limits selftests: mptcp: connect: fix C23 extension warning selftests: mptcp: sockopt: fix C23 extension warning Documentation/networking/mptcp-sysctl.rst | 2 ++ net/mptcp/options.c | 6 ++++-- net/mptcp/pm.c | 18 ++++++++++++------ net/mptcp/pm_kernel.c | 1 - tools/testing/selftests/net/mptcp/mptcp_connect.c | 5 +++-- tools/testing/selftests/net/mptcp/mptcp_inq.c | 5 +++-- tools/testing/selftests/net/mptcp/mptcp_join.sh | 1 + tools/testing/selftests/net/mptcp/mptcp_sockopt.c | 5 +++-- tools/testing/selftests/net/mptcp/pm_netlink.sh | 1 + 9 files changed, 29 insertions(+), 15 deletions(-) --- base-commit: 065c31f2c6915b38f45b1c817b31f41f62eaa774 change-id: 20250815-net-mptcp-misc-fixes-6-17-rc2-d18b2437e8d4 Best regards, -- Matthieu Baerts (NGI0) <matttbe(a)kernel.org>

4 months

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