RE: Problems with SCSI tape rewind / verify on 2.4.29

Mark Yeatman
2005-03-03T08:31:10Z

This corrected the problem on 2.4.29. Thanks Marcelo and all for your
help.

Mark

-----Original Message-----
From: Marcelo Tosatti [mailto:marcelo.tosatti@cyclades.com]
Sent: 02 March 2005 12:04
To: Mark Yeatman
Cc: linux-kernel@vger.kernel.org; akpm@osdl.org
Subject: Re: Problems with SCSI tape rewind / verify on 2.4.29

On Wed, Mar 02, 2005 at 11:15:42AM -0000, Mark Yeatman wrote:
> Hi
>
> Never had to log a bug before, hope this is correctly done.
>
> Thanks
>
> Mark
>
> Detail....
>
> [1.] One line summary of the problem:
> SCSI tape drive is refusing to rewind after backup to allow verify and
> causing illegal seek error
>
> [2.] Full description of the problem/report:
> On backup the tape drive is reporting the following error and failing
> it's backups.
>
> tar: /dev/st0: Warning: Cannot seek: Illegal seek
>
> I have traced this back to failing at an upgrade of the kernel to
2.4.29
> on Feb 8th. The backups have not worked since. Replacement Drives have
> been tried and cables to no avail. I noticed in the the changelog that
a
> patch by Solar Designer to the Scsi tape return code had been made.

v2.6 also contains the same problem BTW.

Try this:

--- a/drivers/scsi/st.c.orig 2005-03-02 09:02:13.637158144 -0300
+++ b/drivers/scsi/st.c 2005-03-02 09:02:20.208159200 -0300
@@ -3778,7 +3778,6 @@
read: st_read,
write: st_write,
ioctl: st_ioctl,
- llseek: no_llseek,
open: st_open,
flush: st_flush,
release: st_release,