From: Christian Borntraeger <kernel@borntraeger.net>
To: dan carpenter <error27@email.com>, Bart Samwel <bart@samwel.tk>,
linux-kernel@vger.kernel.org
Subject: Re: ide-scsi scheduling while atomic in linux-2.6.0-test11
Date: Wed, 10 Dec 2003 08:03:29 +0100 [thread overview]
Message-ID: <200312100803.29578.kernel@borntraeger.net> (raw)
In-Reply-To: <200312092120.18367.error27@email.com>
dan carpenter wrote:
> > ide-scsi scheduling while atomic in linux-2.6.0-test11
>
> You don't need ide-cd to burn cds in 2.6 so the easiest fix is to just
> stop using ide-cd. Anyway, here is the buggy code that causes the
> problem:
ide-scsi....ide-cd is working.
>
> drivers/scsi/ide-scsi.c
> 895: spin_lock_irqsave(&ide_lock, flags);
> 896: while (HWGROUP(drive)->handler) {
> 897: HWGROUP(drive)->handler = NULL;
> 898: schedule_timeout(1);
> 899: }
>
> The fix is quite complicated and I don't know how to do it correctly. :/
First idea I have is to replace the spinlocks with semaphores.
cheers
CHristian
next prev parent reply other threads:[~2003-12-10 7:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-10 5:30 ide-scsi scheduling while atomic in linux-2.6.0-test11 Bart Samwel
2003-12-10 5:20 ` dan carpenter
2003-12-10 7:03 ` Christian Borntraeger [this message]
2003-12-11 0:53 ` bill davidsen
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