On Mon, 17 Dec 2007, James Bottomley wrote:

On Mon, 2007-12-17 at 13:43 -0800, Andrew Morton wrote:

quoted

On Mon, 17 Dec 2007 16:02:02 -0500
"John Stoffel" [off-list ref] wrote:

quoted

Just to confirm, the propsed patch to st.c fixes the issue with
2.6.24-rc5 as well at 2.6.24-rc5-mm1 with access to my DLT tape
drives.

err, what patch to st.c?

That's this one:

http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commit;h=acdd0b1c371b2fbb4b6110a51ba69cb0af9e6f45

I have done some tests. Firstly, I did not see the BUG with 2.6.24-rc5. 
Looking at include/linux/scatterlist.h suggested that CONFIG_DEBUG_SG has 
something to do with this. When enabled SG debugging, I also saw the BUG. 
Adding this patch solved the problem.

You can add

Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi>

if you want. This fix should be included in 2.6.24.

-- 
Kai