On Tuesday, August 20, 2013 02:08:33 PM Mika Westerberg wrote: > On Tue, Aug 20, 2013 at 01:47:57AM +0200, Rafael J. Wysocki wrote: > > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > > > Bad things happen if ACPI hotplug events are handled during system > > PM transitions, especially if devices are removed as a result. > > To prevent those bad things from happening, acquire acpi_scan_lock > > when a transition is started and release it when that transition > > is complete or has been aborted. > > > > This fixes resume lockup on my test-bed Acer Aspire S5 that happens > > when Thunderbolt devices are disconnected from the machine while > > suspended. > > > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > I tested this on Intel DZ77RE-75K and after the patch is applied the > machine didn't hang anymore once resuming. > > Feel free to add my tested-by. I will, thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
