Re: 2.6.24-rc5: tape drive not responding

From: Kai Makisara
Date: Tue Dec 18 2007 - 15:28:08 EST


On Mon, 17 Dec 2007, James Bottomley wrote:

>
> On Mon, 2007-12-17 at 13:43 -0800, Andrew Morton wrote:
> > On Mon, 17 Dec 2007 16:02:02 -0500
> > "John Stoffel" <john@xxxxxxxxxxx> wrote:
> >
> > >
> > > 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@xxxxxxxxxxx>

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

--
Kai
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