Re: pm_op(): pci_pm_restore+0x0/0x70 returns -16

On Wednesday, 29 of October 2008, Pascal Terjan wrote:
On Wed, Oct 29, 2008 at 12:18 AM, Rafael J. Wysocki <rjw@xxxxxxx> 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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