The following test regressions noticed while running selftests/mm gup_longterm
test cases on Dragonboard-845c, Dragonboard-410c, rock-pi-4, qemu-arm64 and
qemu-x86_64 this build have required selftest/mm/configs included and toolchain
is clang nightly.
Regressions found on Dragonboard-845c, Dragonboard-410c, rock-pi-4,
qemu-arm64 and qemu-x86_64
- selftests mm gup_longterm fails
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
Test regression: selftests mm gup_longterm error while loading shared
libraries liburing.so.2 cannot open shared object file No such file or
directory
Test regression: selftests mm cow error while loading shared libraries
liburing.so.2 cannot open shared object file No such file or directory
Test regression: selftests mm mlock-random-test exit=139
Test regression: selftests mm pagemap_ioctl exit=1
Test regression: selftests mm guard_regions file hole_punch
Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
## Test log
Linux version 6.15.0-next-20250606 (tuxmake@tuxmake) (Debian clang
version 21.0.0 (++20250602112323+c5a56f74fef7-1~exp1~20250602112342.1487),
Debian LLD 21.0.0) #1 SMP PREEMPT @1749190532
running ./gup_longterm
----------------------
./gup_longterm: error while loading shared libraries: liburing.so.2:
cannot open shared object file: No such file or directory
[FAIL]
not ok 14 gup_longterm # exit=127
./cow: error while loading shared libraries: liburing.so.2: cannot
open shared object file: No such file or directory
[FAIL]
not ok 50 cow # exit=127
running ./mlock-random-test
---------------------------
TAP version 13
1..2
[ 311.408456] traps: mlock-random-te[21661] general protection fault
ip:7f63210dbf0f sp:7ffdff6fca28 error:0 in
libc.so.6[adf0f,7f6321056000+165000]
[FAIL]
not ok 23 mlock-random-test # exit=139
running ./pagemap_ioctl
...
ok 53 Huge page testing: only two middle pages dirty
ok 54 # SKIP Hugetlb shmem testing: all new pages must not be written (dirty)
ok 55 # SKIP Hugetlb shmem testing: all pages must be written (dirty)
ok 56 # SKIP Hugetlb shmem testing: all pages dirty other than first
and the last one
ok 57 # SKIP Hugetlb shmem testing: PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC
ok 58 # SKIP Hugetlb shmem testing: only middle page dirty
ok 59 # SKIP Hugetlb shmem testing: only two middle pages dirty
ok 60 # SKIP Hugetlb mem testing: all new pages must not be written (dirty)
ok 61 # SKIP Hugetlb mem testing: all pages must be written (dirty)
ok 62 # SKIP Hugetlb mem testing: all pages dirty other than first and
the last one
ok 63 # SKIP Hugetlb mem testing: PM_SCAN_WP_MATCHING |
PM_SCAN_CHECK_WPASYNC[ 241.731600] run_vmtests.sh (456): drop_caches:
3
ok 64 # SKIP Hugetlb mem testing: only middle page dirty
ok 65 # SKIP Hugetlb mem testing: only two middle pages dirty
Bail out! uffd-test creation failed 12 Cannot allocate memory
12 skipped test(s) detected. Consider enabling relevant config options
to improve coverage.
Planned tests != run tests (115 != 65)
Totals: pass:53 fail:0 xfail:0 xpass:0 skip:12 error:0
[FAIL]
# not ok 48 pagemap_ioctl # exit=1
running ./guard-regions
...
RUN guard_regions.file.hole_punch ...
guard-regions.c:1905:hole_punch:Expected madvise(&ptr[3 * page_size],
4 * page_size, MADV_REMOVE) (-1) == 0 (0)
hole_punch: Test terminated by assertion
FAIL guard_regions.file.hole_punch
not ok 80 guard_regions.file.hole_punch
## Source
* Kernel version: 6.16.0-rc2
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha: 050f8ad7b58d9079455af171ac279c4b9b828c11
* Git describe: next-20250616
* Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250616/
* Architectures: arm64, x86_64
* Test environments: Dragonboard-845c, Dragonboard-410c, rock-pi-4,
qemu-arm64, qemu-x86_64 and x86
* Toolchains: clang nightly
* Kconfigs: selftest/mm/config+defconfig+
## Test
* Test log: https://qa-reports.linaro.org/api/testruns/28766026/log_file/
* Test log 2: https://qa-reports.linaro.org/api/testruns/28743077/log_file/
* Build details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250616/kselfte…
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0viPHafKAe0u89drI…
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0viPHafKAe0u89drI…
## Steps to reproduce
- tuxrun \
--runtime podman \
--device qemu-x86_64 \
--boot-args rw \
--kernel https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0wmVl0eHb9koWyQYC…
\
--rootfs https://storage.tuxboot.com/debian/20250605/trixie/amd64/rootfs.ext4.xz
\
--modules https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0wmVl0eHb9koWyQYC…
/usr/ \
--parameters MODULES_PATH=/usr/ \
--parameters
SQUAD_URL=https://qa-reports.linaro.org//api/submit/lkft/linux-next-master/…
\
--parameters SKIPFILE=skipfile-lkft.yaml \
--parameters
KSELFTEST=https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0wmVl0e…
\
--image docker.io/linaro/tuxrun-dispatcher:v1.2.2 \
--tests kselftest-mm \
--timeouts boot=15
--
Linaro LKFT
https://lkft.linaro.org
Tests may wish to add other interfaces to listen on. Notably locally
generated traffic uses dummy interfaces. The multicast daemon needs to know
about these so that it allows forming rules that involve these interfaces,
and so that net.ipv4.conf.X.mc_forwarding is set for the interfaces.
To that end, allow passing in a list of interfaces to configure in addition
to all the physical ones.
Signed-off-by: Petr Machata <petrm(a)nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor(a)blackwall.org>
---
Notes:
v2:
- Adjust as per shellcheck citations
- Retain Nik's R-b, the changes were very minor.
---
CC: Shuah Khan <shuah(a)kernel.org>
CC: linux-kselftest(a)vger.kernel.org
tools/testing/selftests/net/forwarding/lib.sh | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 253847372062..83ee6a07e072 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -1760,9 +1760,12 @@ mc_send()
adf_mcd_start()
{
+ local ifs=("$@")
+
local table_name="$MCD_TABLE_NAME"
local smcroutedir
local pid
+ local if
local i
check_command "$MCD" || return 1
@@ -1776,6 +1779,16 @@ adf_mcd_start()
"$smcroutedir/$table_name.conf"
done
+ for if in "${ifs[@]}"; do
+ if ! ip_link_has_flag "$if" MULTICAST; then
+ ip link set dev "$if" multicast on
+ defer ip link set dev "$if" multicast off
+ fi
+
+ echo "phyint $if enable" >> \
+ "$smcroutedir/$table_name.conf"
+ done
+
"$MCD" -N -I "$table_name" -f "$smcroutedir/$table_name.conf" \
-P "$smcroutedir/$table_name.pid"
busywait "$BUSYWAIT_TIMEOUT" test -e "$smcroutedir/$table_name.pid"
--
2.49.0
Initially netpoll and netconsole were created together, and some
functions are in the wrong file. Seperate netconsole-only functions
in netconsole, avoiding exports.
1. Expose netpoll logging macros in the public header to enable consistent
log formatting across netpoll consumers.
2. Relocate netconsole-specific functions from netpoll to the netconsole
module where they are actually used, reducing unnecessary coupling.
3. Remove unnecessary function exports
4. Rename netpoll parsing functions in netconsole to better reflect their
specific usage.
5. Create a test to check that cmdline works fine. This was in my todo
list since [1], this was a good time to add it here to make sure this
patchset doesn't regress.
PS: The code was split in a way that it is easy to review. When copying
the functions from netpoll to netconsole, I do not change than other
than adding `static`. This will make checkpatch unhappy, but, further
patches will address the issues. It is done this way to make it easy for
reviewers.
Link: https://lore.kernel.org/netdev/Z36TlACdNMwFD7wv@dev-ushankar.dev.purestorag… [1]
Signed-off-by: Breno Leitao <leitao(a)debian.org>
---
Changes in v3:
- The cleanup on the netcons_cmdline.sh test was not cleaning the
netdevsim. Clean it at the end of the test. (Jakub)
- Link to v2: https://lore.kernel.org/r/20250611-rework-v2-0-ab1d92b458ca@debian.org
Changes in v2:
- No change in the code. Just rebased the patches onto netnext/main
- Link to v1: https://lore.kernel.org/r/20250610-rework-v1-0-7cfde283f246@debian.org
---
Breno Leitao (8):
netpoll: remove __netpoll_cleanup from exported API
netpoll: expose netpoll logging macros in public header
netpoll: relocate netconsole-specific functions to netconsole module
netpoll: move netpoll_print_options to netconsole
netconsole: rename functions to better reflect their purpose
netconsole: improve code style in parser function
selftests: net: Refactor cleanup logic in lib_netcons.sh
selftests: net: add netconsole test for cmdline configuration
drivers/net/netconsole.c | 137 ++++++++++++++++++++-
include/linux/netpoll.h | 10 +-
net/core/netpoll.c | 136 +-------------------
tools/testing/selftests/drivers/net/Makefile | 1 +
.../selftests/drivers/net/lib/sh/lib_netcons.sh | 59 ++++++---
.../selftests/drivers/net/netcons_cmdline.sh | 52 ++++++++
6 files changed, 240 insertions(+), 155 deletions(-)
---
base-commit: 6d4e01d29d87356924f1521ca6df7a364e948f13
change-id: 20250603-rework-c175cad8d22e
Best regards,
--
Breno Leitao <leitao(a)debian.org>
The following build warnings were noticed while building selftests/mm
with clang nightly toolchain for arm64 and x86_64 architectures.
Regressions found on arm64 and x86_64
- Build/clang-nightly-lkftconfig-kselftest
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
Build regression: selftests mm pkey_sighandler_tests.c warning
duplicate 'inline' declaration specifier [-Wduplicate-decl-specifier]
Build regression: selftests mm mremap_test.c warning pointer
comparison always evaluates to false [-Wtautological-compare]
Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
## Build log
make[4]: Entering directory '/builds/linux/tools/testing/selftests/mm'
/bin/sh ./check_config.sh clang --target=aarch64-linux-gnu
-fintegrated-as -Werror=unknown-warning-option
-Werror=ignored-optimization-argument -Werror=option-ignored
-Werror=unused-command-line-argument --target=aarch64-linux-gnu
-fintegrated-as
CC cow
CC compaction_test
CC gup_longterm
CC gup_test
CC hmm-tests
CC hugetlb-madvise
CC hugetlb-read-hwpoison
CC hugetlb-soft-offline
CC hugepage-mmap
CC hugepage-mremap
CC hugepage-shm
CC hugepage-vmemmap
CC khugepaged
CC madv_populate
CC map_fixed_noreplace
CC map_hugetlb
CC map_populate
CC memfd_secret
CC migration
CC mkdirty
CC mlock-random-test
CC mlock2-tests
CC mrelease_test
CC mremap_dontunmap
CC mremap_test
mremap_test.c:425:31: warning: pointer comparison always evaluates to
false [-Wtautological-compare]
425 | if (addr + c.dest_alignment < addr) {
| ^
1 warning generated.
CC mseal_test
CC on-fault-limit
CC pagemap_ioctl
CC pfnmap
CC thuge-gen
CC transhuge-stress
CC uffd-stress
CC uffd-unit-tests
CC uffd-wp-mremap
CC split_huge_page_test
CC ksm_tests
CC ksm_functional_tests
CC mdwe_test
CC hugetlb_fault_after_madv
CC hugetlb_madv_vs_map
CC hugetlb_dio
CC droppable
CC guard-regions
CC merge
CC protection_keys
CC pkey_sighandler_tests
pkey_sighandler_tests.c:44:15: warning: duplicate 'inline' declaration
specifier [-Wduplicate-decl-specifier]
44 | static inline __always_inline
| ^
/usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/include/sys/cdefs.h:424:26:
note: expanded from macro '__always_inline'
424 | # define __always_inline __inline __attribute__ ((__always_inline__))
| ^
1 warning generated.
CC va_high_addr_switch
CC virtual_address_range
CC write_to_hugetlbfs
Warning: missing Module.symvers, please have the kernel built first.
page_frag test will be skipped.
make[4]: Leaving directory '/builds/linux/tools/testing/selftests/mm'
## Source
* Kernel version: 6.16.0-rc2
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha: 050f8ad7b58d9079455af171ac279c4b9b828c11
* Git describe: next-20250616
* Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250616/
* Architectures: arm64, x86_64
* Toolchains: clang nightly
* Kconfigs: selftest/mm/config+defconfig+
## Build arm64
* Build log: https://qa-reports.linaro.org/api/testruns/28765515/log_file/
* Build details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250616/log-par…
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0viPHafKAe0u89drI…
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2ya0viPHafKAe0u89drI…
## Steps to reproduce on arm64
- tuxmake --runtime podman --target-arch arm64 --toolchain clang-20 \
--kconfig defconfig \
--kconfig-add
https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/netdev.config
\
--kconfig-add
https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/systemd.config
\
--kconfig-add CONFIG_SYN_COOKIES=y \
--kconfig-add CONFIG_SCHEDSTATS=y LLVM=1 LLVM_IAS=1 debugkernel
dtbs dtbs-legacy headers kernel kselftest modules
--
Linaro LKFT
https://lkft.linaro.org
This patch series introduces a new feature to netconsole which allows
appending a message ID to the userdata dictionary.
If the msgid feature is enabled, the message ID is built from a per-target 32
bit counter that is incremented and appended to every message sent to the target.
Example::
echo 1 > "/sys/kernel/config/netconsole/cmdline0/userdata/msgid_enabled"
echo "This is message #1" > /dev/kmsg
echo "This is message #2" > /dev/kmsg
13,434,54928466,-;This is message #1
msgid=1
13,435,54934019,-;This is message #2
msgid=2
This feature can be used by the target to detect if messages were dropped or
reordered before reaching the target. This allows system administrators to
assess the reliability of their netconsole pipeline and detect loss of messages
due to network contention or temporary unavailability.
Suggested-by: Breno Leitao <leitao(a)debian.org>
Signed-off-by: Gustavo Luiz Duarte <gustavold(a)gmail.com>
---
Changes in v2:
- Use wrapping_assign_add() to avoid warnings in UBSAN and friends.
- Improve documentation to clarify wrapping and distinguish msgid from sequnum.
- Rebase and fix conflict in prepare_extradata().
- Link to v1: https://lore.kernel.org/r/20250611-netconsole-msgid-v1-0-1784a51feb1e@gmail…
---
Gustavo Luiz Duarte (5):
netconsole: introduce 'msgid' as a new sysdata field
netconsole: implement configfs for msgid_enabled
netconsole: append msgid to sysdata
selftests: netconsole: Add tests for 'msgid' feature in sysdata
docs: netconsole: document msgid feature
Documentation/networking/netconsole.rst | 32 +++++++++++
drivers/net/netconsole.c | 65 ++++++++++++++++++++++
.../selftests/drivers/net/netcons_sysdata.sh | 30 ++++++++++
3 files changed, 127 insertions(+)
---
base-commit: 535de528015b56e34a40a8e1eb1629fadf809a84
change-id: 20250609-netconsole-msgid-b93c6f8e9c60
Best regards,
--
Gustavo Luiz Duarte <gustavold(a)gmail.com>