Re: [regression] Latest git has WARN_ON storm with e1000e driver

[Arjan van de Ven]

On Fri, 3 Oct 2008 10:41:49 +0200
Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:

> This is caused by holding a spinlock (__driver_attach) and checking
> for preempt_count (e1000_acquire_swflag_ich8lan).
> 
> I suggest to revert this commit, since we cannot take a mutex while
> holding a spinlock.
> The simple solution of replacing the mutex with a spinlock does not
> work, since we call msleep on several places in the code. Replacing
> all that code doesnt look like 2.6.27 material.

hi,

could you do a run with frame pointers enabled?
that should clear up the stack noise....


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/