From: Jeff Garzik <jgarzik@pobox.com>
To: "Justin T. Gibbs" <gibbs@scsiguy.com>
Cc: Jens Axboe <axboe@suse.de>,
James Bottomley <James.Bottomley@SteelEye.com>,
SCSI Mailing List <linux-scsi@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] Fix aic7xxx del_timer_sync() deadlock
Date: Sun, 29 Feb 2004 14:43:08 -0500 [thread overview]
Message-ID: <404240CC.5020507@pobox.com> (raw)
In-Reply-To: <40423F7B.4020102@pobox.com>
Jeff Garzik wrote:
> But queue full? I hope you clear out the queue first and do some error
> handling, before calling blk_start_queue()?
>
> Normally, calling blk_start_queue() when the queue is full would be the
> wrong thing to do :) You call blk_stop_queue() when the queue becomes
> full, then blk_start_queue() only when the LLD's hardware signals it has
> completed a transaction...
Actually, thinking more about it, I guess this depends (again) on the LLD...
when does queue-full occur, when the LLD itself cannot clear the
condition? During an error/failure condition?
Jeff
next prev parent reply other threads:[~2004-02-29 19:43 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-27 18:26 [PATCH] Fix aic7xxx del_timer_sync() deadlock James Bottomley
2004-02-27 19:23 ` Justin T. Gibbs
2004-02-27 19:34 ` James Bottomley
2004-02-27 20:50 ` Justin T. Gibbs
2004-02-28 15:39 ` James Bottomley
2004-02-29 19:26 ` Justin T. Gibbs
2004-02-29 21:10 ` James Bottomley
2004-02-29 22:23 ` Justin T. Gibbs
2004-02-29 21:25 ` James Bottomley
2004-02-28 2:40 ` Jeff Garzik
2004-02-28 9:25 ` Jens Axboe
2004-02-28 23:50 ` Jeff Garzik
2004-02-29 9:13 ` Jens Axboe
2004-02-29 16:21 ` Jeff Garzik
2004-02-29 16:39 ` Jens Axboe
2004-02-29 17:28 ` Jeff Garzik
2004-02-29 17:55 ` Jens Axboe
2004-02-29 18:57 ` Justin T. Gibbs
2004-02-29 19:00 ` Jeff Garzik
2004-02-29 19:28 ` Justin T. Gibbs
2004-02-29 19:37 ` Jeff Garzik
2004-02-29 19:42 ` Justin T. Gibbs
2004-02-29 19:44 ` Jeff Garzik
2004-02-29 20:06 ` Jens Axboe
2004-02-29 20:20 ` Jeff Garzik
2004-02-29 20:27 ` Jens Axboe
2004-02-29 20:28 ` Jeff Garzik
2004-02-29 19:43 ` Jeff Garzik [this message]
2004-02-29 20:04 ` Jens Axboe
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