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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-08-19 01:11:37 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-10-09 23:26:08 +0200 |
| commit | 2b1516e55f8416acfb48d5f43d41222d180fb5a3 (patch) | |
| tree | 68d5e48d865b53a5551f721dbac11d55913d6879 /Documentation/admin-guide | |
| parent | Linux 4.14-rc4 (diff) | |
| download | linux-2b1516e55f8416acfb48d5f43d41222d180fb5a3.tar.xz linux-2b1516e55f8416acfb48d5f43d41222d180fb5a3.zip | |
rcutorture: Add interrupt-disable capability to stall-warning tests
When rcutorture sees the rcutorture.stall_cpu kernel boot parameter,
it loops with preemption disabled, which does in fact normally
generate an RCU CPU stall warning message. However, there are test
scenarios that need the stalling CPU to have interrupts disabled.
This commit therefore adds an rcutorture.stall_cpu_irqsoff kernel
boot parameter that causes the stalling CPU to disable interrupts.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..bc94c47085a5 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3539,6 +3539,9 @@ rcutorture.stall_cpu_holdoff= [KNL] Time to wait (s) after boot before inducing stall. + rcutorture.stall_cpu_irqsoff= [KNL] + Disable interrupts while stalling if set. + rcutorture.stat_interval= [KNL] Time (s) between statistics printk()s. |