On Thu, 5 Jan 2006, Ryan Richter wrote:
> On Wed, Jan 04, 2006 at 11:48:52PM +0200, Kai Makisara wrote:
> > > Here's what I got:
>
> Another one. I can't keep running this kernel - nearly all of our
> backup tapes are erased now. If a drive were to fail today, we would
> lose hundreds of GB of irreplacible data. I'm going back to 2.6.11.3
> until we have a full set of backups again.
>
Yes, don't risk the backups. If you don't want to change the kernel, you
can load the st module with the option try_direct_io=0. If you do this, st
will use the driver's buffer for reading and writing and you don't see
this problem.
If you later have an opportunity to try the patch Linus suggested, it
might provide interesting information. However, if all goes well, the st
driver will not be using these mapping functions in 2.6.16 any more (see
Mike Christie's changes in "[GIT PATCH] SCSI update for 2.6.15" sent to
linux-scsi by James Bottomley yesterday). I am not sure this fixes your
problem but it certainly changes the code that is being debugged.
--
Kai
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