From: Michael Buesch <mb@bu3sch.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Threaded interrupt handlers broken?
Date: Fri, 4 Sep 2009 20:55:52 +0200 [thread overview]
Message-ID: <200909042055.55385.mb@bu3sch.de> (raw)
In-Reply-To: <200908171430.32146.mb@bu3sch.de>
On Monday 17 August 2009 14:30:31 Michael Buesch wrote:
> Also works. Thanks.
>
> Tested-by: Michael Buesch <mb@bu3sch.de>
Hm, I've got a strange problem here related to threaded IRQs and rmmod.
If I do this sequence, it crashes the machine:
request_threaded_irq();
free_irq();
rmmod module
modprobe module
request_threaded_irq();
*boom*
Here are some oops messages. These are almost always different, so I
guess it crashes in IRQ context at random places when the IRQ triggers.
http://bu3sch.de/misc/irq_crash1.JPG
http://bu3sch.de/misc/irq_crash2.JPG
It seems to be a NULL pointer dereference somewhere, but I can't locate it.
Note that it does not happen, if I omit the rmmod.
--
Greetings, Michael.
next prev parent reply other threads:[~2009-09-04 18:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-16 9:53 Threaded interrupt handlers broken? 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
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 [this message]
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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