Re: [2.6.23-rc1 REGRESSION] CPU hotplug totally broken on HPC nx6325 (x86_64)

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* Linus Torvalds ([email protected]) wrote:
> On Thu, 26 Jul 2007, Rafael J. Wysocki wrote:
> > On my Turion64-based HPC nx6325 with the 2.6.23-rc1 x86_64 kernel doing
> > 
> > # echo 0 > /sys/devices/system/cpu/cpu1/online
> > 
> > causes the system to crash in a spectacular fashion (call traces going
> > continuously on the console, no reaction to anything except for the power
> > button).  For this reason, suspend and hibernation don't work as well.
> 
> Yeah, I really shouldn't have applied that patch. I didn't notice that it 
> not only cleaned up the direct memcpy's, it also re-introduced the damn 
> broken code that we fixed once already.

This also fixes paravirt patching which was broken when text_poke()
tried to patch the various pv ops in lookup_address.

thanks,
-chris
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