On Sat, Jan 22, 2011 at 1:54 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> 2011/1/22 Rafael J. Wysocki <rjw@sisk.pl>:
>> On Friday, January 21, 2011, Jeff Chua wrote:
>>> 2011/1/21 Rafael J. Wysocki <rjw@sisk.pl>:
>>> > Thanks, but unfortunately this wasn't conclusive.  Please apply the patch below
>>> > instead of the previous one (on top of [1/11] - [11/11]) and collect dmesg
>> So, below is a replacement for [11/11].  Please test it on top of
>> [1/11] - [10/11] (the current Linus' tree already contains [1/11] and [2/11])
>> and let me know if it works for you (in either case, please attach dmesg
>> output containing a suspend attempt).
>>
>> If it works, I'll remove the diagnostic messages and submit along with the
>> rest of the patchset.
>
> Rafael,
>
> dmesg attached. This time, it worked!
>
> I discovered CONFIG_THINKPAD_ACPI caused suspend-to-disk to hang. I
> need the Thinkpad ACPI to control the fan and bluetooth. It looks like
> the thinkpad acpi is trying acquire locks while suspending.  Disabling
> cmos, light, led and hotkeys makes suspend-to-disk works again.

Here's the dmesg.

Jeff