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| author | Anton Blanchard <anton@samba.org> | 2010-03-05 13:42:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-06 11:26:33 -0800 |
| commit | 8aeee85a29e27e043db582bf2ae8e5f42767934f (patch) | |
| tree | fac5fc9b79dc272517918722e944b86f36a7e608 /kernel/pid.c | |
| parent | 78d7d407b62a021e6d2e8dc24c0b90e390ab58a1 (diff) | |
| download | op-kernel-dev-8aeee85a29e27e043db582bf2ae8e5f42767934f.zip op-kernel-dev-8aeee85a29e27e043db582bf2ae8e5f42767934f.tar.gz | |
panic: fix panic_timeout accuracy when running on a hypervisor
I've had some complaints about panic_timeout being wildly innacurate on
shared processor PowerPC partitions (a 3 minute panic_timeout taking 30
minutes).
The problem is we loop on mdelay(1) and with a 1ms in 10ms hypervisor
timeslice each of these will take 10ms (ie 10x) longer. I expect other
platforms with shared processor hypervisors will see the same issue.
This patch keeps the old behaviour if we have a panic_blink (only keyboard
LEDs right now) and does 1 second mdelays if we don't.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/pid.c')
0 files changed, 0 insertions, 0 deletions
