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SubjectRe: Infinite interrupt loop, INTSTAT = 0
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On Wed, 2005-09-28 at 19:10 +0200, Olivier Galibert wrote:
> On Wed, Sep 28, 2005 at 11:24:46AM -0500, James Bottomley wrote:
> > On Wed, 2005-09-28 at 18:07 +0200, Olivier Galibert wrote:
> > > scsi1:0:0:0: Attempting to abort cmd ffff8101b1cdf880: 0x28 0x0 0x0
> > > 0xbc 0x0 0x3f 0x0 0x0 0x8 0x0
> >
> > Hmm, that message doesn't appear in the current kernel driver.
> >
> > Is this a non-standard kernel or non-standard aic79xx driver?
>
> Just reproduced the exact same message with a vanilla 2.6.13.2.
> Checking the just-untarred sources, it _is_ in aix79xx_osm.c, in
> ahd_linux_abort. You must have typoed "Attempting" in your grep :-)
>
> Want be to try to BUG() it or something to get a stack trace? The
> crash happens a handful of seconds after the card dumping, time enough
> for a well-placed dmesg in an xterm.
>
> Incidentally, how can one get a backtrace without crashing the kernel
> in the operation?

WARN_ON(1)



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