From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Horms <horms@verge.net.au>
Cc: Karol Lewandowski <klz@o2.pl>,
340228@bugs.debian.org,
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: [PATCH, IDE] Blacklist CD-912E/ATK
Date: Tue, 22 Nov 2005 20:26:19 +0000 [thread overview]
Message-ID: <1132691179.20233.77.camel@localhost.localdomain> (raw)
In-Reply-To: <20051122024426.8C16A34043@koto.vergenet.net>
> The drive is clearly broken. Adding blacklist to drivers/ide/ide-dma.c
> for this model ("CD-912E/ATK") fixes this problem.
That may be the case but knowing if th drive is the problem is more
tricky.
Firstly try it on a different controller
Secondly check for other firmware revisions
Thirdly blacklist only your firmware rev if there are others
> hdc: DMA disabled
> ------------[ cut here ]------------
> kernel BUG at drivers/ide/ide-iops.c:949!
> invalid operand: 0000 [#1]
That is an IDE layer bug not a drive incompatibility. It may be one
triggered the other but until the BUG the kernel was correctly behaving
and had just turned off DMA anyway.
next prev parent reply other threads:[~2005-11-22 20:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1EeJoy-0001LS-DG__45201.7337469899$1132611644$gmane$org@iglo.domek.prywatny>
2005-11-22 2:44 ` [PATCH, IDE] Blacklist CD-912E/ATK Horms
2005-11-22 20:26 ` Alan Cox [this message]
2005-11-23 11:11 ` kl
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