linux-kernel - Re: scheduling while atomic and DEBUG_SPINLOCK

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Message-Id: <1182950920.3201.4.camel@laptopd505.fenrus.org>
Date:	Wed, 27 Jun 2007 06:28:40 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Jon Ringle <jon@...gle.org>
Cc:	Jon Ringle <JRingle@...tical.com>, linux-kernel@...r.kernel.org
Subject: Re: scheduling while atomic and DEBUG_SPINLOCK_SLEEP

On Wed, 2007-06-27 at 02:26 -0400, Jon Ringle wrote:
> Arjan van de Ven wrote:
> > On Tue, 2007-06-26 at 22:55 -0400, Jon Ringle wrote:
> >   
> >> Hello,
> >> Out of these two, the first one that is showing "in_atomic():1" seems
> >> more likely to me to be a potential cause of the "scheduling while
> >> atomic" dump.
> >>
> >> Does this logic seem reasonable? Are there other debugging techniques I
> >> can use to narrow down the cause for the "scheduling while atomic"?
> >>     
> >
> >
> > you could start by giving us pointers to the sources of the two
> > drivers... without that... how can we look and help?
> >
> >   
> You can get Intel's source from here:
> GPL_ixp400LinuxEthernetDriverPatch-1_5.zip:
> http://downloadcenter.intel.com/detail_desc.aspx?agr=N&ProductID=2100&DwnldID=9519
> 
> BSD_ixp400AccessLibrary-2_1.zip:
> http://downloadfinder.intel.com/scripts-df/detail_desc.asp?agr=Y&ProductID=2100&DwnldID=10146


ok that intel driver is quite buggy; I'll try to find the right folks at
work. You forgot to put the URL for your driver in though; based on the
backtrace it's also buggy, but without the code.... 

-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

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