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Bug#723767: linux: 3.11 Failed to suspend: RCU stall, soft lock-ups



On Thu, Sep 19, 2013 at 06:37:59PM +0200, Julian Andres Klode wrote:
> Package: src:linux
> Version: 3.11-1~exp1
> Severity: important
> 
> I today tried to suspend my ThinkPad X230, but apparently this did not
> work. 20 seconds after "PM: Preparing system for mem sleep", I get a
> " INFO: rcu_sched self-detected stall on CPU { 0}" and then several
> soft lockup messages. Rebooting did not fix the no-sleep problem, I
> removed the battery for 10 seconds, that fixed it (the UEFI system
> or the hardware itself might have been confused by the kernel bug).
> 
> When experiencing the bug, the system looked as if it suspended correctly
> at first; but after a few seconds; the system was completely active
> again.

This resume problem still exists. Seems like something is waking up
the system again immediately after suspend. I can't find anything
suspicious in the kernel log.


-- 
Julian Andres Klode  - Debian Developer, Ubuntu Member

See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.

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