linux-kernel - Re: NEC ND-4550A problems reading DVD-R

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Date:	Tue, 01 Mar 2011 11:01:41 +0100
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-ide@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org
Subject: Re: NEC ND-4550A problems reading DVD-R

Tejun Heo <tj@...nel.org> writes:

> I think that's determined by drivers/scsi/sr.h::SR_TIMEOUT which is
> hardcoded to be 30 seconds.  Maybe it's better to move it to use the
> block parameter.  Anyways, the drive actually takes longer than 30secs
> to recognize the media?

Yes, sometimes it takes e.g. 18 seconds, and sometimes it's 33 secs or
something alike. It's quite random.

Perhaps we should have a longer timeout only while mounting the media?

> Eeek, ugly.  Isn't there firmware update available for the drive?

1.09 is already the latest. It's a '2005 drive.

Thanks.
-- 
Krzysztof Halasa
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