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

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Message-ID: <e8ca35370810281938y38daaa5fo581817264a8959db@mail.gmail.com>
Date:	Wed, 29 Oct 2008 03:38:20 +0100
From:	"Pascal Terjan" <pterjan@...driva.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: pm_op(): pci_pm_restore+0x0/0x70 returns -16

On Wed, Oct 29, 2008 at 12:18 AM, Rafael J. Wysocki <rjw@...k.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
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