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From: Thomas Gleixner <tglx@linutronix.de>
To: Michael Buesch <mb@bu3sch.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Threaded interrupt handlers broken?
Date: Mon, 17 Aug 2009 12:56:55 +0200 (CEST)	[thread overview]
Message-ID: <alpine.LFD.2.00.0908171255570.2782@localhost.localdomain> (raw)
In-Reply-To: <200908171223.57412.mb@bu3sch.de>

On Mon, 17 Aug 2009, Michael Buesch wrote:
> Ok, I added some more debugging code:
> http://bu3sch.de/patches/wireless-testing/20090817-1219/patches/001-hack-threaded-irqs.patch
> 
> Here's the result:
> http://bu3sch.de/misc/dmesg2
>
> Is it possible that the irq_to_desc() in irq_thread() fails and the
> resulting desc pointer points to something random? That could
> probably explain why the bit is set and why the spinlock is
> uninitialized. But it would not explain why desc->lock would still
> work... Maybe irq_to_desc() returns a descriptor to another irq (!=
> 52)?

That would cause the whole irq code to fail. Can you send/upload your
.config please ?

Thanks,

	tglx

  reply	other threads:[~2009-08-17 10:56 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-16  9:53 Michael Buesch
2009-08-16 10:14 ` Michael Buesch
2009-08-16 12:45   ` Michael Buesch
2009-08-16 13:22     ` Thomas Gleixner
2009-08-16 13:46       ` Michael Buesch
2009-08-16 14:25         ` Thomas Gleixner
2009-08-16 17:51           ` Michael Buesch
2009-08-16 20:05             ` Thomas Gleixner
2009-08-16 21:01               ` Michael Buesch
2009-08-16 21:28                 ` Thomas Gleixner
2009-08-17 10:23                   ` Michael Buesch
2009-08-17 10:56                     ` Thomas Gleixner [this message]
2009-08-17 11:03                       ` Thomas Gleixner
2009-08-17 11:12                         ` Thomas Gleixner
2009-08-17 11:37                           ` Michael Buesch
2009-08-17 12:14                             ` Thomas Gleixner
2009-08-17 12:30                               ` Michael Buesch
2009-09-04 18:55                                 ` Michael Buesch
2009-09-04 19:05                                   ` Michael Buesch
2009-09-04 19:35                                     ` Michael Buesch
2009-09-04 19:37                                     ` Sebastian Andrzej Siewior
2009-08-16 13:19 ` Thomas Gleixner

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