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SubjectRe: [stable] Soft lockups since stable kernel upgrade to 2.6.23.8
On Sat, Nov 17, 2007 at 08:05:33PM +0000, David wrote:
> Greg KH wrote:
> > On Sat, Nov 17, 2007 at 07:21:35PM +0100, Javier Kohen wrote:
> >
> >> I upgraded today from 2.6.23 to 2.6.23.8 and started seeing a lot of
> >> these in the logs:
> >>
> >
> > Can you see if the problem showed up in 2.6.23.2 or .3 to help narrow
> > this down?
> >
> This is the culprit, reverting fixes the issue.
>
> Cheers
> David
>
> --- a/kernel/softlockup.c
> +++ b/kernel/softlockup.c
> @@ -80,10 +80,11 @@ void softlockup_tick(void)
> print_timestamp = per_cpu(print_timestamp, this_cpu);
>
> /* report at most once a second */
> - if (print_timestamp < (touch_timestamp + 1) ||
> - did_panic ||
> - !per_cpu(watchdog_task, this_cpu))
> + if ((print_timestamp >= touch_timestamp &&
> + print_timestamp < (touch_timestamp + 1)) ||
> + did_panic || !per_cpu(watchdog_task, this_cpu)) {
> return;
> + }
>
> /* do not print during early bootup: */
> if (unlikely(system_state != SYSTEM_RUNNING)) {
>


Great, thanks for tracking this down.

Ingo, this corrisponds to changeset
a115d5caca1a2905ba7a32b408a6042b20179aaa in mainline. Is that patch
incorrect? Should this patch in the -stable tree be reverted?

thanks,

greg k-h
-
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