linux-kernel - Re: Burning multiple DVDs at one time

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Message-ID: <20120317115324.10b39bb7@galadriel.home>
Date:	Sat, 17 Mar 2012 11:53:24 +0100
From:	Emmanuel Florac <eflorac@...ellique.com>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	Wakko Warner <wakko@...mx.eu.org>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: Burning multiple DVDs at one time

Le Sat, 17 Mar 2012 09:56:44 +0100 vous écriviez:

> This is likely due to serialization by a global mutex in the sr
> driver. Have a look at thread "[PATCH] [SCSI] sr: fix multi-drive
> performance, remove BKL replacement" from February.
> https://lkml.org/lkml/2012/2/28/230 

When was this regression introduced? I have a dedicated cd burning
machine running 2.6.35.x, and it works great with 4 drives at a time.

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