Re: 2.6.34-rc2: cpu hotplug test failure on x86_64

[Rafael J. Wysocki]

On Saturday 20 March 2010, Peter Zijlstra wrote:
> On Sat, 2010-03-20 at 22:47 +0530, Sachin Sant wrote:
> > Running cpu hotplug tests on a x86_64 box results in
> > the following BUG.
> > 
> > BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
> > IP: [<ffffffff81037388>] amd_pmu_cpu_offline+0x38/0x67
> 
> I guess something like the below might work.

Not really.  Sachin, please try this patch instead:
https://patchwork.kernel.org/patch/87189/

Rafael
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