From: Mathias Kretschmer <mathias@lemur.sytes.net>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IDE DVD reading & error handling
Date: Tue, 04 Mar 2003 17:55:51 -0500 [thread overview]
Message-ID: <3E652EF7.7010405@lemur.sytes.net> (raw)
In-Reply-To: 1046818748.12226.21.camel@irongate.swansea.linux.org.uk
> I think its perfectly doable to set the maximum retries per
> device. Have a look at the current ide_error() and the error: handler
> in the relevant ide drivers (notably ide-cd).
>
>
>>I wonder if it would be possible to tune the IDE layer by i.e.
>>reducing the number of retries and disabling the controller reset, etc.
>
>
> A lot of the time you have to go through the controller reset. However
> cutting the retries down and having good readahead management on the
> I/O thread ought to still cope with that.
that's what I'm hoping for :)
Would it also be possible/make sense to never switch from DMA to PIO
mode since those DVD read errors are most likely not a DMA problem ?
prev parent reply other threads:[~2003-03-04 22:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 18:20 IDE DVD reading & error handling Mathias Kretschmer
2003-03-04 22:59 ` Alan Cox
2003-03-04 22:55 ` Mathias Kretschmer [this message]
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