On Wed, Jan 04, 2017 at 11:33:16AM +0100, Kilian Singer wrote: > Dear all, > > the weird thing is also that when calling: > > echo 0 > /sys/bus/pci/devices/0000:01:00.0/d3cold_allowed > or > echo on > /sys/bus/pci/devices/0000:01:00.0/power/control > > on a command line then the command line crashes. The system stays responsive but still > becomes unresponsive when I lock the screen. Most probably because the device has already been runtime suspended. Setting them from command line may be too late. > Maybe a similar thing are happening in the kernel. Maybe one could use the above fact > and a timeout to test for the problem and then take measures to deactivate the pm. > > I hope this gives you some more clues. You could try to run 'lspci -vv' once the machine is unresponsive (if you can do anything anymore). That should show whether the device and the root port are still in D3. -- 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
