On Sat, 23 May 2009, Pekka Enberg wrote:

> On Sat, May 23, 2009 at 12:32 AM, David <da...@unsolicited.net> wrote:
> > I reported this DVB-S card breaking between 2.6.26 and 2.6.27. I've
> > finally had time to do some digging, and the regression is caused by:
> >
> >    b963801164618e25fbdc0cd452ce49c3628b46c8 USB: ehci-hcd unlink speedups
> >
> > ..that was introduced in 2.6.27. Reverting this change in 2.6.29-rc5
> > makes the card work happily again.
> 
> [ Note: David meant 2.6.30-rc5 here. ]
> 
> Thanks for doing the bisect!
> 
> On Sat, May 23, 2009 at 12:32 AM, David <da...@unsolicited.net> wrote:
> > I don't know enough about USB protocols to speculate on whether there
> > may be a better fix, but hopefully someone cleverer than me can get to
> > the bottom of the problem?

It's hard to see how that patch could cause any problems, provided the
hardware is working correctly.  (There was a case where the hardware
was _not_ working as expected.)  Is any more information available
about this failure?

Alan Stern

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