2.6.14 USB vs. sleep issues

Benjamin Herrenschmidt benh at kernel.crashing.org
Thu Nov 17 08:01:07 EST 2005

On Wed, 2005-11-16 at 19:09 +0100, Wolfgang Pfeiffer wrote:
> On Thu, Nov 03, 2005 at 05:33:39PM +1100, Benjamin Herrenschmidt wrote:
> > For those who experience crashes on sleep and/or wakeup (typically due
> > to USB) with 2.6.14, I made a test patch that might help. [ ... ]
> Ben, I just compiled and installed a from kernel.org with
> none of your patches from this thread applied to it, and I have no
> sleep/wakeup probs with it so far: about 3 instances of sleep/wakeup
> until now, all of them successful.
> Maybe I even made it a bit more complicated for the system, as I
> connected a USB HUB, with 4 ports, to the machine: It just seems to
> work ...

Only newer machines with a NEC USB2 chip that shares interrupts appear
to be affected by the problem.


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