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    SubjectRe: Resume hangs [was: mmotm 2010-12-02-16-34 uploaded]
    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@linux-foundation.org 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...

    regards,
    --
    js


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