Re: [BUG] 2.6.24-git usb reset problems

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On Wed, Jan 30 2008, James Bottomley wrote:
> On Wed, 2008-01-30 at 11:38 +0100, Jens Axboe wrote:
> > On Wed, Jan 30 2008, Geert Uytterhoeven wrote:
> > > On Tue, 29 Jan 2008, Jens Axboe wrote:
> > > > On Tue, Jan 29 2008, Jens Axboe wrote:
> > > > > On Tue, Jan 29 2008, James Bottomley wrote:
> > > > > > On Tue, 2008-01-29 at 11:10 -0800, Matthew Dharm wrote:
> > > > > > > For some reason, usb_sg_init is boned during auto-sense.
> > > > > > 
> > > > > > OK, that's implicating the scsi_eh_prep_cmnd() in the auto sense
> > > > > > code ... that was also an update in 2.6.24
> > > > > 
> > > > > yeah, already found the bug - it's assuming ->request_buffer holds the
> > > > > sglist, oops. Preparing a fix.
> > > > 
> > > > ok here goes, this saves and restores the sg table correctly. it also
> > > > fixes the usb bug for me.
> > > 
> > > I can confirm this patch fixes the errors I was seeing with current
> > > linux-2.6.git for the USB memory card readers in a Dell TFT connected
> > > to a PS3.
> > 
> > James, we need a fix for this pushed asap. So either we should merge the
> > below now, or push the bidi patchset that also fixes this. It all
> > depends on when you want to merge the bidi patches...
> 
> The SCSI patch set (including the bidirectional pieces) is waiting in
> scsi-misc ... just for forms sake, could you confirm that it actually
> fixes the problem and I'll push it.

Certainly, I'll give it a spin tonight.

-- 
Jens Axboe

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