From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jens Axboe <axboe@suse.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IDE problems with rmmod ide-cd
Date: Thu, 28 Apr 2005 23:24:05 +0100 [thread overview]
Message-ID: <1114727044.18330.232.camel@localhost.localdomain> (raw)
In-Reply-To: <20050428172541.GN1876@suse.de>
On Iau, 2005-04-28 at 18:25, Jens Axboe wrote:
> The problem you are thinking of was also an ATAPI cache flush command,
> so I'm not so sure I would call it harmless... I haven't changed
> anything in there recently, Bart?
Eeep - I must admit to being somewhat baffled where it is coming from
too. Its occurring between the rmmod starting and the userspace
notifiers from the syslog ordering but I don't see anything that would
queue flushes on the IDE side. The power management does check and
issues WIN_FLUSH_CACHE* stuff. The cd layer only seems to issue it in
the dvd rw close path and that checks media written and mmc3 bits or in
places like cdrom_mrw_exit.
One possibility might be that the specific drive is incorrectly
reporting capabilities and register_cdrom is setting cdi->exit as a
result. Will try and work out what is going on there tomorrow.
next prev parent reply other threads:[~2005-04-28 22:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-28 16:44 IDE problems with rmmod ide-cd Alan Cox
2005-04-28 17:25 ` Jens Axboe
2005-04-28 20:46 ` Bartlomiej Zolnierkiewicz
2005-04-28 21:51 ` Alan Cox
2005-04-28 22:20 ` Bartlomiej Zolnierkiewicz
2005-04-28 22:24 ` Alan Cox [this message]
2005-04-29 14:03 ` Alan Cox
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