Re: [Bugme-new] [Bug 11072] New: scsi-layer crash after usb storage device unplug

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On Sat, 12 Jul 2008, Andrew Morton wrote:

> (switched to email.  Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
> 
> On Sat, 12 Jul 2008 01:50:37 -0700 (PDT) bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> 
> > http://bugzilla.kernel.org/show_bug.cgi?id=11072
> > 
> >            Summary: scsi-layer crash after usb storage device unplug

> > Latest working kernel version: no idea, never saw this problem before with the
> > same device, but the memory card is new
> > Earliest failing kernel version: no idea either, current kernel is
> > 2.6.26-rc9-wl-12766-ga0b2a63-dirty
> > Distribution: debian/unstable
> > Hardware Environment: powerbook 5,6
> > Software Environment:
> > Problem Description: SDHC card in USB reader wasn't responding, so I unplugged
> > and got a null pointer deref

This looks like a problem reported earlier and fixed by this patch:

http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-04-usb/usb-storage-revert-dma-alignment-change-for-wireless-usb.patch

Alan Stern

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