Re: [OOPS] hotplugging cpus via /sys/devices/system/cpu/

[Ashok Raj]

On Fri, Sep 09, 2005 at 01:41:58PM -0700, Christopher Beppler wrote:
> 
>    [1.] One line summary of the problem:
>    If I deactivate a CPU with /sys/devices/system/cpux and try to
>    reactivate it, then the CPU doesn't start and the kernel prints out an
>    oops.
> 

Could you try this on 2.6.13-mm2? If this is due to a sending broadcast
IPI related issue that should fix the problem.

I should say i didnt try i386 in a while
but i suspect some of the recent suspend/resume code required some
modifications to the i386 hotplug code which might be getting in the way
if you just try logical cpu hotplug alone without using it for suspend/resume.

Shaohua might know more about the status.

Cheers,
ashok
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