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SubjectRe: [patch 0/6] hwmon/coretemp: Hotplug fixes, cleanups and state machine conversion
On Wed, 12 Apr 2017, Tommi Rantala wrote:
> 2017-04-12 12:28 GMT+03:00 Thomas Gleixner <>:
> > On Wed, 12 Apr 2017, Tommi Rantala wrote:
> >> Resume-from-suspend stopped working in HP xw6600 in fedora kernel
> >> 4.10.8-200.fc25.x86_64, while it worked just fine in
> >> 4.9.9-200.fc25.x86_64.
> >>
> >> When powering on the suspended PC, there is no video output, and to
> >> recover, I need to reset the machine.
> >
> > Is there just no video output or is the machine completely frozen? If it's
> > not completely dead, then you might be able to ssh into it.
> It's completely hosed: not possible to ssh, does not respond to ping either.
> I made a quick test with netconsole. After booting with
> no_console_suspend=1, and setting the netconsole parameters, I can get
> kernel messages (to my android phone) when suspending the machine. But
> no messages after the failed resume.

Let's do something else first.

Can you please try to offline/online CPUs from the console?

# echo 0 >/sys/devices/system/cpu1/online
# echo 1 >/sys/devices/system/cpu1/online

If that works, then try to offline all CPUs (except 0) in the same order as
suspend (1 ... 7) and then online them again in the same order?



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