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| author | Amery Hung <ameryhung@gmail.com> | 2026-04-18 02:36:31 +0300 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-04-19 14:52:50 +0300 |
| commit | 7c528b364bd8b2e5629aab1d84898c52c2085187 (patch) | |
| tree | 0d7297e00c54579248ef39a3f0d9f5b5839dc382 /include/linux/timerqueue.h | |
| parent | ad35d8018669fd2eea76e3f74eb050fd3d2fb690 (diff) | |
| download | linux-7c528b364bd8b2e5629aab1d84898c52c2085187.tar.xz | |
selftests/bpf: Trace bpf_local_storage_update to debug flaky local storage tests
task_local_storage/sys_enter_exit and cgrp_local_storage/
cgroup_iter_sleepable occasionally fail in CI possibly because
bpf_{task,cgrp}_storage_get() returns NULL. Add a fexit probe on
bpf_local_storage_update() to capture the actual error code when this
happens. It will allow us to tell if it is trylock failure in
kmalloc_nolock(), timeout/deadlock in rqspinlock or something else.
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/bpf/20260417233631.1443199-1-ameryhung@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions