From: Jens Axboe <axboe@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: solt2@dns.toxicfilms.tv, linux-kernel@vger.kernel.org
Subject: Re: 2.6.11-rc3-mm1 bad scheduling while atomic + lockup
Date: Tue, 8 Feb 2005 10:46:35 +0100 [thread overview]
Message-ID: <20050208094634.GE15985@suse.de> (raw)
In-Reply-To: <20050208014433.42320fc4.akpm@osdl.org>
On Tue, Feb 08 2005, Andrew Morton wrote:
> Jens Axboe <axboe@suse.de> wrote:
> >
> > > ->axboe!
> >
> > :-)
> >
> > The thing wants a rewrite. Ideally the serializing point would be a
> > special request. The patch is still better than nothing right now, it's
> > really easy to hang the device with hdparm in -linus since it's
> > impossible to guess when it is safe to issue tuning actions from user
> > space.
>
> I'm not sure which is worse, really. I've never hung an interface with
> hdparm, nor seen any reports of it. Making I/O errors deadly rather hurts.
I've gotten several reports of it, try to tune the drive settings with
any kind of drive activity and it will barf.
> Will it happen on all I/O errors, or was this a special case?
Not sure, at least the crc stuff will trigger it. If you want you can
deactivate the patch for now, I'll get it fixed properly.
--
Jens Axboe
prev parent reply other threads:[~2005-02-08 9:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-07 7:15 2.6.11-rc3-mm1 bad scheduling while atomic + lockup Maciej Soltysiak
2005-02-07 20:19 ` Hans Reiser
2005-02-07 20:59 ` Re[2]: " Maciej Soltysiak
2005-02-08 9:00 ` Andrew Morton
2005-02-08 9:37 ` Jens Axboe
2005-02-08 9:44 ` Andrew Morton
2005-02-08 9:46 ` Jens Axboe [this message]
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