On 01/31/2011 10:37 PM, Jiri Slaby wrote: > On 01/20/2011 10:02 PM, Rafael J. Wysocki wrote: >> On Thursday, January 20, 2011, Jiri Slaby wrote: >>> On 01/06/2011 03:18 PM, Jiri Slaby wrote: >>>> On 12/14/2010 11:22 PM, Rafael J. Wysocki wrote: >>>>> On Tuesday, December 14, 2010, Jiri Slaby wrote: >>>>>> On 12/13/2010 10:10 PM, Rafael J. Wysocki wrote: >>>>>>> On Monday, December 13, 2010, Jiri Slaby wrote: >>>>>>>> On 12/05/2010 02:08 PM, Rafael J. Wysocki wrote: >>>>>>>>> On Sunday, December 05, 2010, Jiri Slaby wrote: >>>>>>>>>> On 12/03/2010 01:34 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote: >>>>>>>>>>> The mm-of-the-moment snapshot 2010-12-02-16-34 has been uploaded to >>>>>>>>>> >>>>>>>>>> Hi, this kernel regresses with respect to resume. It doesn't wake up, >>>>>>>>>> the screen is black with blinking cursor at position [1, 1]. >>>>>>>>>> 2010-11-23-16-12 seemed to be OK. In this one it is 100% reproducible so >>>>>>>>>> far. >>>>>>>>>> >>>>>>>>>> I'm using pm-suspend, any ideas what to test before I start to find the >>>>>>>>>> reason on my own? >>>>>>>>> >>>>>>>>> Please try the pm_test tests for core, processors and devices, eg.: >>>>>>>> >>>>>>>> Hmm, I haven't seen the issues since then. So it had to be some kind of >>>>>>>> coincidence -- I see the issue occasionally for some time already. Now >>>>>>>> it triggered twice in a row after I updated the kernel. >>>>>>> >>>>>>> Hmm. What hardware is that? >>>>>> >>>>>> What exactly do you want to know about it? It's some specific intel >>>>>> desktop machine, 3 years old, 2 intel cores, 6G of mem, 2 sata disks in >>>>>> raid, dvb-t usb receiver (af9015), usb keyboard and mouse. >>>>> >>>>> I'm seeing pretty much the same symptoms on quite different hardware, except >>>>> for one thing: USB keyboard and mouse. >>>>> >>>>> Have you checked if writing 0 to /sys/power/pm_async helps? >>>> >>>> It's very hard to reproduce (it happens once a week or two), so I can't >>>> say yet. As it happened yesterday again, going to test it from now on. >>> >>> Ok, I haven't seen the issue with 0 in /sys/power/pm_async for two weeks >>> now (I added it to boot.local). I would say it's related to that... >> >> In that case the next step would be to build the kernel with >> CONFIG_PM_ADVANCED_DEBUG set and try to switch the async flag for individual >> devices (it is located is /sys/devices/.../power/ for each device). >> >> For example, I wonder if it is sufficient to unset it for all USB devices. > > It seems to suffice... No hangs still. Should I enable pm_async back > again to confirm the issue is still present? BTW. I'm currently writing "disabled" into: /sys/bus/usb/devices/usb1/power/async /sys/bus/usb/devices/usb2/power/async /sys/bus/usb/devices/usb3/power/async /sys/bus/usb/devices/usb4/power/async /sys/bus/usb/devices/usb5/power/async /sys/bus/usb/devices/usb6/power/async /sys/bus/usb/devices/usb7/power/async /sys/bus/usb/devices/usb8/power/async /sys/bus/usb/devices/1-0:1.0/power/async /sys/bus/usb/devices/2-0:1.0/power/async /sys/bus/usb/devices/2-6/power/async /sys/bus/usb/devices/2-6:1.0/power/async /sys/bus/usb/devices/2-6:1.1/power/async /sys/bus/usb/devices/3-0:1.0/power/async /sys/bus/usb/devices/4-0:1.0/power/async /sys/bus/usb/devices/4-2/power/async /sys/bus/usb/devices/4-2.1/power/async /sys/bus/usb/devices/4-2:1.0/power/async /sys/bus/usb/devices/4-2.1:1.0/power/async /sys/bus/usb/devices/4-2.1:1.1/power/async /sys/bus/usb/devices/4-2.2/power/async /sys/bus/usb/devices/4-2.2:1.0/power/async /sys/bus/usb/devices/5-0:1.0/power/async /sys/bus/usb/devices/6-0:1.0/power/async /sys/bus/usb/devices/7-0:1.0/power/async /sys/bus/usb/devices/8-0:1.0/power/async /sys/power/pm_async is 1 lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 0413:6029 Leadtek Research, Inc. WinFast DTV Dongle Gold Bus 004 Device 002: ID 04b4:2050 Cypress Semiconductor Corp. hub Bus 004 Device 003: ID 0458:004c KYE Systems Corp. (Mouse Systems) Slimstar Pro Keyboard Bus 004 Device 004: ID 045e:00f0 Microsoft Corp. regards, -- js _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
