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Thomas Gleixner authored
The recent conversion to the hotplug state machine missed that the original hotplug notifiers did not execute in the frozen state, which is used on suspend on resume. This does not matter on single socket machines, but on multi socket systems this breaks when the device for a non-boot socket is removed when the last CPU of that socket is brought offline. The device removal locks up the machine hard w/o any debug output. Prevent executing the hotplug callbacks when cpuhp_tasks_frozen is true. Thanks to Tommi for providing debug information patiently while I failed to spot the obvious. Fixes: e00ca5df ("hwmon: (coretemp) Convert to hotplug state machine") Reported-by:
Tommi Rantala <tt.rantala@gmail.com> Tested-by:
Tommi Rantala <tt.rantala@gmail.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Guenter Roeck <linux@roeck-us.net>
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