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| author | Aniket Gattani <aniketgattani@google.com> | 2026-05-04 00:22:05 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-05-05 13:50:48 +0300 |
| commit | 03240f5de2dd312f388f3e493f194d54d43e2924 (patch) | |
| tree | 20f543210a18e9536ae942aa19056ee54ccd5eac /include/linux/timerqueue.h | |
| parent | a5959728548caf0aa17879342ee6571a29d54574 (diff) | |
| download | linux-03240f5de2dd312f388f3e493f194d54d43e2924.tar.xz | |
selftests/membarrier: Add rseq stress test for CFS throttle interactions
Add a new stress test to exercise the interaction between targeted
expedited membarrier commands and CFS bandwidth throttling.
The test creates a deep cgroup hierarchy and aggressively hammers the
membarrier syscall to expose lock contention and latency issues. This
serves as a reliable reproducer for the `membarrier_ipi_mutex` cascade
lockup, ensuring future changes to membarrier locking do not regress
targeted command latency.
Closes: https://lore.kernel.org/r/202604151516.Vc7Ro4LP-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Aniket Gattani <aniketgattani@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260503212205.3714217-4-aniketgattani@google.com
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions