linux-kernel - Re: linux-next-20090225: ide-cd triggers BUG at arch/x86/mm/ioremap.c:80!

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Message-Id: <200903040333.n243XE0m014406@www262.sakura.ne.jp>
Date:	Wed, 04 Mar 2009 12:33:14 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
To:	petkovbb@...il.com
Cc:	bzolnier@...il.com, linux-kernel@...r.kernel.org
Subject: Re: linux-next-20090225: ide-cd triggers BUG at arch/x86/mm/ioremap.c:80!

Hello.

Borislav Petkov wrote:
> how about something like that:
> 
> We map to sg once in ide_issue_pc since all drivers call into that.
> We have to exclude ide_tape for now since it doesn't do that and uses
> its own io buffers-method. Then, we do for both ide-cd and ide-floppy
> blk_rq_bytes(rq) in ide_init_sg_cmd() after I've fixed the partial
> completions issue later.
> 
> Lightly tested with ide-cd for now.
> 
> @Tetsuo: please do test, this should fix your OOPS.
> 
OK. This patch solved the problem.

Thank you.
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