linux-kernel - Re: Device hang when offlining a CPU due to IRQ misrouting

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Date:	Wed, 6 Jun 2007 12:35:14 -0700
From:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
To:	"Darrick J. Wong" <djwong@...ibm.com>
Cc:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	linux-kernel@...r.kernel.org, ebiederm@...ssion.com
Subject: Re: Device hang when offlining a CPU due to IRQ misrouting

On Wed, Jun 06, 2007 at 11:58:29AM -0700, Darrick J. Wong wrote:
> On Tue, Jun 05, 2007 at 06:37:59PM -0700, Siddha, Suresh B wrote:
> > On Tue, Jun 05, 2007 at 04:57:07PM -0700, Darrick J. Wong wrote:
> > > On Tue, Jun 05, 2007 at 02:14:51PM -0700, Siddha, Suresh B wrote:
> > >  
> > > > Can you send us your system's dmesg aswell as output of /proc/interrupts?
> > > 
> > > http://sweaglesw.net/~djwong/docs/dmesg
> > > http://sweaglesw.net/~djwong/docs/interrupts
> > 
> > Didn't find anything wrong in that information. Can you try this
> > appended debug patch and see if you see this error msg in dmesg, when you
> > hit the bug? Thanks.
> 
> I don't see that message.

Weird. Then the bug can only happen if for some reason, "mask = map"
didn't happen in fixup_irqs(). Can you send us the disassembly of the
fixup_irqs()?

thanks,
suresh
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