Re: HPET (?) related hangs and breakage in 2.6.35,36

From: Clemens Ladisch
Date: Tue Nov 09 2010 - 10:19:08 EST


Andrew Lutomirski wrote:
> After several minutes of uptime, my system freezes in a strange way.
> All of userspace and some kernel services freeze hard (no mouse, no
> typing, etc.) Caps-lock works intermittently, as does (I think)
> pinging. The only debug output I've been able to get is this (typed
> from a blurry photo because netconsole dies along with everything
> else):
>
> [ 5478.244722] Clocksource tsc unstable (delta = 101399051316 ns)
> [ 5478.367958] Switching to clocksource hpet
> [ 5543.729698] BUG: soft lockup - CPU #1 stuck for 61s! [migration/1:6]

Looks like this one:
http://lkml.org/lkml/2010/10/26/126


Regards,
Clemens
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