Re: mmotm 2010-09-15 - BUG in mmc driver callingled_trigger_event()

[Chris Ball]

Hi Valdis,

On Tue, Sep 21, 2010 at 11:01:47PM -0400, Valdis.Kletnieks@xxxxxx wrote:
> [    2.934051] BUG: sleeping function called from invalid context at kernel/mutex.c:278
> [    2.934440] in_atomic(): 1, irqs_disabled(): 0, pid: 11, name: kworker/0:1
>
> [...]
> 
> Anything obvious to you guys? Race condition of some sort, or somebody
> else leaving a dangling in_atomic() status for us to get ambushed by?
> Maybe Hein's patches to retry at multiple freqs are causing one of the
> retries to happen at a bad time? I'm mystified.

This is caused by Anton Vorontsov's patchset here:
   http://lkml.org/lkml/2010/7/14/127

I reported the same symptom:
   http://lkml.org/lkml/2010/9/8/435

and suggested that Andrew remove the patchset from -mm while we work out
the bugs.

Thanks,

-- 
Chris Ball   <cjb@xxxxxxxxxx>   <http://printf.net/>
One Laptop Per Child
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