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From: Phil Stracchino <alaric@babcom.com>
To: Linux-KERNEL <linux-kernel@vger.kernel.org>
Subject: Re: CDROM troubles
Date: Sun, 6 May 2001 14:42:28 -0700	[thread overview]
Message-ID: <20010506144228.B13711@babylon5.babcom.com> (raw)
In-Reply-To: <20010506030500.A26278@babylon5.babcom.com>
In-Reply-To: <20010506030500.A26278@babylon5.babcom.com>; from alaric@babcom.com on Sun, May 06, 2001 at 03:05:00AM -0700

On Sun, May 06, 2001 at 03:05:00AM -0700, Phil Stracchino wrote:
> Hey folks,
> I'm seeing a problem with mounting CDs using a Toshiba XM-6401TA CDROM
> drive attached to an Adaptec AHA1542CF controller (scsi1) on kernel 2.4.3
> and 2.4.4.  The behavior seems to be fairly consistent as follows:
> 
> first mount and unmount works normally, no unusual events logged
> second mount and unmount works normally, no unusual events logged
> third mount locks up the machine.  looks like a kernel panic.
> 
> Any ideas?


Panic is confirmed.  This time, it lived long enough to log:
 
May  6 14:05:05 babylon5 kernel: Kernel panic: scsi_free:Bad offset

Since it involves the CDROM, the aha1542 driver is implicated.  Why it's
getting a bad offset, I don't understand enough about the SCSI drivers to
know; all the scsi_free calls in aha1542.c look identical to me.
 
Would any Linux SCSI gurus care to let me know any diagnostic procedures
recommended for nailing this one?


-- 
 Linux Now!   ..........Because friends don't let friends use Microsoft.
 phil stracchino   --   the renaissance man   --   mystic zen biker geek
    Vr00m:  2000 Honda CBR929RR   --   Cage:  2000 Dodge Intrepid R/T
 Previous vr00mage:  1986 VF500F (sold), 1991 VFR750F3 (foully murdered)

  reply	other threads:[~2001-05-06 21:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-06 10:05 CDROM troubles Phil Stracchino
2001-05-06 21:42 ` Phil Stracchino [this message]
2001-05-06 22:01   ` Jens Axboe
2001-05-06 23:17     ` CDROM troubles -- some progress, problem remains Phil Stracchino
2001-05-09 17:54       ` CDROM troubles -- followup Phil Stracchino

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