Andrew's jinxed VAIO breaks with the high resolution timer updates in a
very strange way. Andrew identified the following patch as the culprit:
http://www.tglx.de/projects/hrtimers/2.6.22-rc4/broken-out/clockevents-fix-resume-logic.patch
This makes no sense at all. The patch just moves the timer restart to a
different (later) place in the code and does exactly the same thing as
the current code does.
On resume the VAIO is stuck in the following place:
<Andrews debug session>
We finish swsusp_save() and a few other functions then we go
hibernate
->platform_finish
->acpi_hibernation_finish
->acpi_leave_sleep_state
->acpi_evaluate_object
and there it dies, in this call:
status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
I wonder how your patch caused that?
<debugs further>
OK, it gets to the last statement in acpi_evaluate_object():
return_ACPI_STATUS(status);
but doesn't hit the printk on return to the caller,
acpi_leave_sleep_state().
</Andrews debug session>
Some data points:
This happens only, when the local apic timer is used. With PIT the
resume works fine.
I back ported the full high res stuff to 2.6.20. On 2.6.20 the VAIO
survives that patch.
Can the suspend/resume and ACPI wizards please give some hint how to
track this 100% reproducible wreckage down.
Thanks,
tglx
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