From: Andre Hedrick <andre@linux-ide.org>
To: Jeff Garzik <jgarzik@mandrakesoft.com>
Cc: Neil Brown <neilb@cse.unsw.edu.au>, 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, 6 Nov 2000 01:40:09 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.10.10011060138320.14903-100000@master.linux-ide.org> (raw)
In-Reply-To: <3A067318.E9C6ADDF@mandrakesoft.com>
On Mon, 6 Nov 2000, Jeff Garzik wrote:
> 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,
This is likely the classic case where the driver hangs on to the global
lock way to lock because it is grabbed to early wrt what I am changing the
behavior to...
Cheers,
Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development
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next prev parent reply other threads:[~2000-11-06 9:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-05 21:08 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
2000-11-06 9:40 ` Andre Hedrick [this message]
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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