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From: Jeff Garzik <jgarzik@mandrakesoft.com>
To: Neil Brown <neilb@cse.unsw.edu.au>
Cc: ryan <ryan@netidea.com>,
	linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org
Subject: Re: Kernel 2.4.0test10 crash (RAID+SMP)
Date: Mon, 06 Nov 2000 04:00:08 -0500	[thread overview]
Message-ID: <3A067318.E9C6ADDF@mandrakesoft.com> (raw)
In-Reply-To: <1459.973469046@kao2.melbourne.sgi.com> <3A060BE5.8877F477@netidea.com> <14854.8617.282831.205647@notabene.cse.unsw.edu.au>

Neil Brown wrote:
> It looks like an interupt is happening while another interrupt is
> happening, which should be impossible... but it isn't.

If multiple interrupts are hitting a single code path (like IDE irqs 14
-and- 15), you definitely have to think about that.  The reentrancy
guarantee only exists when a single IRQ is assigned to a single
handler...

	Jeff


-- 
Jeff Garzik             | Dinner is ready when
Building 1024           | the smoke alarm goes off.
MandrakeSoft            |	-/usr/games/fortune
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  parent reply	other threads:[~2000-11-06  9:01 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-11-05 21:08 Kernel 2.4.0test10 crash (RAID+SMP) ryan
2000-11-06  0:04 ` Keith Owens
2000-11-06  1:39   ` ryan
2000-11-06  3:12     ` Neil Brown
2000-11-06  0:09       ` ryan
2000-11-06  9:00       ` Jeff Garzik [this message]
2000-11-06  9:40         ` Andre Hedrick
2000-11-06 22:19         ` Neil Brown
2000-11-06 11:51 ` Jason Straight
2000-11-07  0:02 Ion Badulescu

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