Re: intermittent suspend problem again

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"Rafael J. Wysocki" <rjw@xxxxxxx> writes:

> On Sunday 29 November 2009, Ferenc Wagner wrote:
>
>> "Rafael J. Wysocki" <rjw@xxxxxxx> writes:
>> 
>>> On Saturday 28 November 2009, Ferenc Wagner wrote:
>>>
>>>> "Rafael J. Wysocki" <rjw@xxxxxxx> writes:
>>>> 
>>>>> Compile with CONFIG_PM_VERBOSE (it does mean exactly that).
>>>> 
>>>> The last message now was:
>>>> 
>>>> e100: 0000:02:08.0: hibernate, may wakeup
>>>> 
>>>> Looks like hibernating the e100 driver is unstable.
>>>
>>> Can you verify that by trying to hibernate without the e100 driver?
>> 
>> Not really, as I still can't reliable reproduce the issue.  Since I'm
>> running with suspend loglevel = 8, it's happened only twice (in a row),
>> with seemingly exact same console output.  Some earlier freezes also
>> happened in dpm_suspend_start, at least.  However, I can certainly add
>> e100 to SUSPEND_MODULES under /etc/pm/config.d, and continue running
>> with that.
>
> That's what I'd do.

That worked out mosty OK (no freeze in quite some hibernation cycles),
but I'm continuing testing it.

On the other hand, I reverted 8fbd962e3, recompiled and replaced the
module, and got the freeze during hibernation.  And that was the bulk of
the changes since 2.6.31...  I'll revert the rest and test again, but
that seems purely cosmetic, so no high hopes.

> In addition to that, you can run multiple hibernation/resume cycles in
> a tight loop using the RTC wakealarm.

I'll do so, as soon as I find a way to automatically supply the dm-crypt
passphrase... or even better, learn to hibernate to ramdisk from the
initramfs. :)
-- 
Cheers,
Feri.
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