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From: Jens Axboe <axboe@suse.de>
To: Paul Jakma <paul@clubi.ie>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: scsi-cdrom lockup and ide-scsi problem (both EFS related)
Date: Tue, 31 Oct 2000 15:31:06 -0800	[thread overview]
Message-ID: <20001031153106.A9458@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.21.0010310054200.1041-100000@fogarty.jakma.org>
In-Reply-To: <Pine.LNX.4.21.0010310054200.1041-100000@fogarty.jakma.org>; from paul@clubi.ie on Tue, Oct 31, 2000 at 01:11:44AM +0000

On Tue, Oct 31 2000, Paul Jakma wrote:
> I have 2 problems related to reading IRIX EFS cd's.
> 
> -------problem 1:
> 
> mounting an EFS cd from my Yamaha CDR-4416S SCSI CDRW consistently
> causes a lockup when i try to read directory/file data from the CD. I
> observed this initially with EFS CDR's, and assumed something had
> gone wrong when burning that CD. But the exact same thing happens
> with original SGI IRIX media. I have no problems with any of my EFS
> CDs when accesed from an ATAPI CDROM.

Known problem, blocksizes != 2kb does not currently work
correctly with SCSI CD-ROM (it's even on Ted's list).

> My IDE CDROM under ide-scsi emulation does not like trying to mount
> EFS CDs, here are the logs of multiple mount attempts:

Same deal, SCSI CD-ROM driver. As you noted, pure ATAPI drive will
work just fine.

> ide-scsi emulation - if i want to mount the CD for any reason i have
> to reboot again to get the IDE CDROM back to pure ATAPI mode, then
> reboot again for ide-scsi to burn a cd... slightly frustrating. :)

rmmod ide-scsi ; insmod ide-cd
mount, etc
rmmod ide-cd ; insmod ide-scsi
burn

-- 
* Jens Axboe <axboe@suse.de>
* SuSE Labs
-
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  reply	other threads:[~2000-10-31 22:24 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-10-31  1:11 scsi-cdrom lockup and ide-scsi problem (both EFS related) Paul Jakma
2000-10-31 23:31 ` Jens Axboe [this message]
2000-11-01  1:25   ` Paul Jakma
2000-11-01  2:33     ` Jens Axboe
2000-11-01  1:40       ` Paul Jakma
2000-11-01  1:54       ` Alan Cox
2000-11-01  3:10         ` Jens Axboe
2000-11-01 12:47           ` Alan Cox
2000-11-01  4:43   ` Miles Lane

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