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SubjectRe: [PATCH] Fix SCSI regression in 2.6.27 [was [Bugme-new] [Bug 12099] New: Nokia 5310 storage-mode]
On Tue, 25 Nov 2008, James Bottomley wrote:

> On Tue, 2008-11-25 at 10:34 -0500, Alan Stern wrote:
> > This patch is intended for 2.6.27.stable and 2.6.28. It's a temporary
> > fix for a problem affecting a number of USB mass-storage devices
> > (including many Nokia phones): When trying to access a nonexistent
> > "last" sector, the SCSI midlayer gets caught in an endless retry loop.
> Can't we just invoke the last sector handling flag for all Nokia
> devices?

That would work for those devices... until and unless Nokia ever
decides to correct their bug. It won't help anything else.

> This would cause tape errors on unit attention (fairly common
> condition). It can be argued that we get more users of USB mobile
> phones than tapes, but I'd rather keep both communities happy

Me too. I realize this patch hasn't been tested or vetted by anyone in
the SCSI development crowd. That's why I've been pestering you guys
about it!

> By and large, the reason we backport from head if at all possible is so
> we can avoid bugs like this creeping into stable. (And backporting from
> head is far easier if the bug fixes are small and don't contain
> miscellaneous code clean ups, control flow changes and comment fixes)

> I tried to untangle it on the 'plane yesterday. I've just got a bit
> more testing to do then I'll post the patch to your patch.

That's fine with me. I just don't want to see the same problem
continuing on into

Alan Stern

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