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    SubjectRe: pm_op(): pci_pm_restore+0x0/0x70 returns -16
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    On Wednesday, 29 of October 2008, Pascal Terjan wrote:
    > On Wed, Oct 29, 2008 at 12:18 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    > > On Tuesday, 28 of October 2008, Pascal Terjan wrote:
    > >> Since I updated my laptop (Thikpad T40) to 2.6.27-rc5 and all new
    > >> kernels until 2.6.27.3 (was using 2.6.25 before), I get this at resume
    > >> time after hibernation :
    > >>
    > >> Oct 28 10:39:18 plop kernel: pm_op(): pci_pm_restore+0x0/0x70 returns
    > >> -16
    > >> Oct 28 10:39:19 plop kernel: PM: Device 0000:00:00.0 failed to restore:
    > >> error -16
    > >>
    > >> This may or may not be related to resume issues I often get.
    > >>
    > >> Sometimes it still work fine, sometimes it panics but I can't get any
    > >> log, sometimes I get back to X but without USB mouse, without keyboard
    > >> and ssh not responding (sysrq still work).
    > >
    > > It looks like the ->restore() callback fails for your hostbridge. It might
    > > have done that before, but we've only been reporting such failures since the
    > > 2.6.27 development cycle.
    > >
    > > Did hibernation work correctly with 2.6.25?
    >
    > Yes it worked fine
    > I hibernate twice a day and never got failures with old kernels while
    > it now fails to resume most of the time, but other things have changed
    > and I did not do any investigation (for example I switched to libata
    > while switching to 2.6.27-rc).
    > If this message is only additional reporting, i will try to do some more testing

    Yes, this printk() got introduced in 2.6.27.

    Thanks,
    Rafael


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