Re: 2.6.29-rc1 does not resume on Lenove T61

From: Zdenek Kabelac
Date: Mon Jan 12 2009 - 07:15:00 EST


2009/1/12 Rafael J. Wysocki <rjw@xxxxxxx>:
> On Sunday 11 January 2009, Zdenek Kabelac wrote:
>> 2009/1/11 Maciej Rutecki <maciej.rutecki@xxxxxxxxx>:
>> > 2009/1/11 Zdenek Kabelac <zdenek.kabelac@xxxxxxxxx>:
>> >> Hi
>> >>
>> >> I've booted and tested 2.6.29-rc1 (c59765042f53a79a7a65585042ff463b69cb248c)
>> >>
>> >> I've observed that suspend is unusable - it goes to sleep - the sleep
>> >> LED is on. After few secs system turns on back itself - and stays in
>> >> some frozen state
>> >
>> > A have similar situation, one difference: I get blank screen during
>> > resume from suspend to ram. Also sometimes, like You, system turns on
>> > back itself.
>> >
>>
>> So it looks like reverting this commit:
>>
>> http://marc.info/?l=linux-kernel&m=123140019117968&w=4
>> (6fd9086a518d4f14213a32fe6c9ac17fabebbc1e)
>> (which is already a tracked regression)
>> fixes the problem with auto-resume
>>
>> But the problem with deadlock in the resume phase is still there.
>
> Please check if unloading all of the USB controller modules before suspend
> helps.

I've booted to single mode without usbcore module (thus any load of
other usb modules fails)
(removed from initramdisk as well)

This time the resume stops with these 3 lines (I'm using
no_console_suspend kernel option):

....
thinkpad_acpi thinkpad_acpi: EARLY resume
thinkpad_hwmon thinkpad_hwmon: EARLY resume
Enabling non-boot CPUs...

And after this it stays in deadlock - LED for sleep is still being on

Zdenek
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