On Sat, Apr 30, 2011 at 01:06:07PM +0930, Arthur Marsh wrote:
> >
> >
>
> Yes, with plain 2.6.39-rc5-git2 I had problems with shutting down
> and with "BUG: soft lockup - CPU#0 stuck for 63s!" errors.
>
> After adding 'nmi_watchdog=0' I could cleanly shutdown and have not
> seen any more "BUG: soft lockup - CPU#0 stuck for 63s!" errors.
I realized nmi_watchdog=0 also disabled the softlockup detector too.
What happens if you apply this patch and run _without_ the nmi_watchdog=0
parameter?
Do you still get soft lockups?
Cheers,
Don
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 140dce7..2527d10 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -421,7 +421,7 @@ static int watchdog_enable(int cpu)
int err = 0;
/* enable the perf event */
- err = watchdog_nmi_enable(cpu);
+ //err = watchdog_nmi_enable(cpu);
/* Regardless of err above, fall through and start softlockup */
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