linux-kernel - Re: regression: CD burning (k3b) went broke

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Message-Id: <1204081128.26640.20.camel@homer.simson.net>
Date:	Wed, 27 Feb 2008 03:58:48 +0100
From:	Mike Galbraith <efault@....de>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Tejun Heo <htejun@...il.com>, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: regression: CD burning (k3b) went broke


On Tue, 2008-02-26 at 19:46 -0500, Jeff Garzik wrote:

> I would love to get an answer as to what data_len (and of course 
> raw_data_len) should be set to AFTER the command completes, which is 
> what is going on here.

Yeah, blk_complete_sghdr_rq() used to do hdr->resid = irq->data_len,
which is modified down lower.  How/where that hdr->resid percolates back
up, and turns into a retry/nogo, I don't know.

	-Mike

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