diff options
author | Peter Zijlstra <peterz@infradead.org> | 2008-04-29 04:02:46 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-05-05 17:56:18 -0400 |
commit | b328ca182f01c2a04b85e0ee8a410720b104fbcc (patch) | |
tree | d04ba3472a8f57788fb7e6e614e8e6b3c5a79b55 /kernel/compat.c | |
parent | 104f64549c961a797ff5f7c59946a7caa335c5b0 (diff) |
sched: fix hrtick_start_fair and CPU-Hotplug
Gautham R Shenoy reported:
> While running the usual CPU-Hotplug stress tests on linux-2.6.25,
> I noticed the following in the console logs.
>
> This is a wee bit difficult to reproduce. In the past 10 runs I hit this
> only once.
>
> ------------[ cut here ]------------
>
> WARNING: at kernel/sched.c:962 hrtick+0x2e/0x65()
>
> Just wondering if we are doing a good job at handling the cancellation
> of any per-cpu scheduler timers during CPU-Hotplug.
This looks like its indeed not cancelled at all and migrates the it to
another cpu. Fix it via a proper hotplug notifier mechanism.
Reported-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/compat.c')
0 files changed, 0 insertions, 0 deletions