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SubjectRe: 2.6.29-rc1: [SOLVED] thinkpad problems during resume
> commit e39ad415ac15116df213dfa2aa2a4f1b0857af9c
> Author: Mike Travis <>
> Date: Sun Jan 4 05:18:10 2009 -0800
> cpumask: use work_on_cpu in acpi-cpufreq.c for read_measured_perf_ctrs
> makes cpu hotplug working again. Resume from suspend to ram is still broken
> on my Thinkpad. Looks like there is yet another patch to find....
> Ingo, Mike: reverting e39ad415ac15116df213dfa2aa2a4f1b0857af9c fixes cpu
> hotplug on my thinkpad. Any idea how to proceed? Should we revert that
> patch in Linus git until we know what was wrong?

I forgot to revert the usb patch.
Current status:
2.6.29-rc2 +
reverted e39ad415ac15116df213dfa2aa2a4f1b0857af9c (cpumask: use work_on_cpu in
acpi-cpufreq.c for read_measured_perf_ctrs) +
reverted a0d4922da2e4ccb0973095d8d29f36f6b1b5f703 (USB: fix up suspend and
resume for PCI host controllers)

has a working suspend to ram on my T61p. With any of these two patches not
reverted resume hangs.


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