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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-04-01 19:57:52 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-05-07 10:15:28 -0700 |
| commit | 55b2dcf58700041d6f0b037a98619222c825f004 (patch) | |
| tree | da9dcfd0c5feda27e39ddedcdb3b8c514ff4936c /Documentation/admin-guide/kernel-parameters.txt | |
| parent | df5916845dd6ee34ce40aaad5e7b61058720419c (diff) | |
| download | lwn-55b2dcf58700041d6f0b037a98619222c825f004.tar.gz lwn-55b2dcf58700041d6f0b037a98619222c825f004.zip | |
rcu: Allow rcutorture to starve grace-period kthread
This commit provides an rcutorture.stall_gp_kthread module parameter
to allow rcutorture to starve the grace-period kthread. This allows
testing the code that detects such starvation.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index ad12b39d641d..be94358a8ea8 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4221,6 +4221,13 @@ rcutorture.stall_cpu_irqsoff= [KNL] Disable interrupts while stalling if set. + rcutorture.stall_gp_kthread= [KNL] + Duration (s) of forced sleep within RCU + grace-period kthread to test RCU CPU stall + warnings, zero to disable. If both stall_cpu + and stall_gp_kthread are specified, the + kthread is starved first, then the CPU. + rcutorture.stat_interval= [KNL] Time (s) between statistics printk()s. |