Rafael J. Wysocki wrote:
> On Thursday 22 January 2009, Alan Jenkins wrote:
>
>> Alan Jenkins wrote:
>>
>>> Hibernation hangs just after writing the image. With s2disk I can see
>>> this from the console messages. The same hang happens with kernel
>>> swsusp ('echo disk | sudo tee /sys/power/state'), and I can see that
>>> the image has been written from the HDD led.
>>>
>>> In either case, I can still hard-power-off and resume from hibernation.
>>>
>>> It doesn't hang if I use the shutdown method (either 'echo shutdown |
>>> sudo tee /sys/power/disk' or 's2disk -P "shutdown method=shutdown"').
>>>
>>>
>> I've bisected this to commit 571ff7584bb9e05fca0eb79752ae55a46faf3a98.
>> It doesn't revert cleanly from RC2.
>>
>> I think it's distinct from the other two reported suspend regressions.
>> I'm not using acpi-cpufreq, and the issue doesn't affect resume.
>>
>
> It looks distinct.
>
> Do you suspend this box to RAM and does it work?
>
Yes, I do use STR on it occasionally, and it still works in RC2.
> Please retest with the appended patch applied.
>
That fixes it.
Thanks!
Alan
> Thanks,
> Rafael
>
>
> ---
> drivers/pci/pci-driver.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> Index: linux-2.6/drivers/pci/pci-driver.c
> ===================================================================
> --- linux-2.6.orig/drivers/pci/pci-driver.c
> +++ linux-2.6/drivers/pci/pci-driver.c
> @@ -660,7 +660,10 @@ static int pci_pm_poweroff(struct device
> if (pci_has_legacy_pm_support(pci_dev))
> return pci_legacy_suspend(dev, PMSG_HIBERNATE);
>
> - if (drv && drv->pm && drv->pm->poweroff) {
> + if (!drv || !drv->pm)
> + return 0;
> +
> + if (drv->pm->poweroff) {
> error = drv->pm->poweroff(dev);
> suspend_report_result(drv->pm->poweroff, error);
> }
>
>
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