From: Alan Cox <alan@redhat.com>
To: benh@kernel.crashing.org (Benjamin Herrenschmidt)
Cc: alan@redhat.com, skraw@ithnet.com (Stephan von Krawczynski),
linux-kernel@vger.kernel.org
Subject: Re: 2.4.21-pre4: PDC ide driver problems with shared interrupts
Date: Wed, 5 Feb 2003 07:24:21 -0500 (EST) [thread overview]
Message-ID: <200302051224.h15COLj03064@devserv.devel.redhat.com> (raw)
In-Reply-To: <1044443761.685.44.camel@zion.wanadoo.fr> from "Benjamin Herrenschmidt" at Feb 05, 2003 12:16:02 PM
> ide_dma_intr() called while the drive was busy. This is strange for a
> simple reason: Even if we got the wrong interrupt (shared interrupt),
> __ide_dma_test_irq() should have returned 0, and so ide_dma_intr
> shouldn't have been called.
Ok the other mail makes more sense now 8)
> drive->waiting_for_dma is set before setting up the handler and
> issuing the command, and while the DMA engine is indeed started
> only after sending the command, it's INTR bit have been cleared
> previously (I suppose it can't be stale, or can it while the DMA
> haven't been started yet ? In this case we would need to take
> the lock here).
I'd have to go digging. I think that can occur however.
Andre ?
next prev parent reply other threads:[~2003-02-05 12:16 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-02 15:18 2.4.21-pre4: tg3 driver problems with shared interrupts Stephan von Krawczynski
2003-02-02 16:49 ` Jeff Garzik
2003-02-02 17:09 ` Stephan von Krawczynski
2003-02-02 17:15 ` Jeff Garzik
2003-02-02 17:52 ` Stephan von Krawczynski
2003-02-02 18:28 ` Jeff Garzik
2003-02-02 18:31 ` Stephan von Krawczynski
2003-02-03 10:25 ` Stephan von Krawczynski
2003-02-05 9:48 ` 2.4.21-pre4: PDC ide " Stephan von Krawczynski
2003-02-05 11:16 ` Benjamin Herrenschmidt
2003-02-05 11:39 ` Stephan von Krawczynski
2003-02-05 12:21 ` Alan Cox
2003-02-05 12:22 ` Benjamin Herrenschmidt
2003-02-05 12:50 ` Alan Cox
2003-02-05 13:19 ` Stephan von Krawczynski
2003-02-05 12:24 ` Alan Cox [this message]
2003-02-05 16:56 ` Ross Biro
2003-02-05 17:12 ` Benjamin Herrenschmidt
2003-02-05 17:19 ` Ross Biro
2003-02-05 17:34 ` Benjamin Herrenschmidt
2003-02-05 17:38 ` Stephan von Krawczynski
[not found] ` <1044467091.685.155.camel@zion.wanadoo.fr>
2003-02-05 17:58 ` Stephan von Krawczynski
2003-02-05 20:00 ` Bryan Andersen
2003-02-05 19:10 ` Alan Cox
2003-02-06 12:20 ` Stephan von Krawczynski
2003-02-06 23:04 ` Benjamin Herrenschmidt
2003-02-07 9:10 ` Stephan von Krawczynski
-- strict thread matches above, loose matches on Subject: below --
2003-02-05 16:44 Robbert Kouprie
2003-02-05 19:45 ` Bryan Andersen
[not found] <7b263321.0302140626.2ddb7980@posting.google.com>
2003-02-14 14:41 ` Edward King
2003-02-14 15:41 ` Benjamin Herrenschmidt
[not found] <20030202153009$2e0d@gated-at.bofh.it>
[not found] ` <20030205181006$107c@gated-at.bofh.it>
[not found] ` <20030205181006$7bb8@gated-at.bofh.it>
[not found] ` <20030205181006$455c@gated-at.bofh.it>
[not found] ` <20030205181006$5dba@gated-at.bofh.it>
[not found] ` <20030205181006$3358@gated-at.bofh.it>
[not found] ` <200302061451.h16Epl0Z001134@pc.skynet.be>
2003-02-23 14:33 ` Stephan von Krawczynski
2003-02-23 15:04 ` Arjan van de Ven
2003-02-23 17:29 ` Stephan von Krawczynski
[not found] <3F1C54A8.5020404@snarkhunter.com>
2003-07-22 14:44 ` Edward King
2003-07-22 18:07 ` John V. Martinez
2003-07-22 21:02 ` Edward King
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