Re: [BUG, 4.8-rc7] perf: oops in intel_pmu_enable_all

From: Dave Chinner
Date: Sun Sep 25 2016 - 19:35:15 EST


On Mon, Sep 26, 2016 at 09:22:45AM +1000, Dave Chinner wrote:
> Hi Folks,
>
> I just upgraded a test VM from 4.8-rc6 to 4.8-rc7, and went to run:
>
> # perf_4.7 top -g -U
>
> inside the VM - the kernel oops with the trace below. The perf
> binary was built from a 4.7 kernel, so it's not the latest but it
> still shouldn't oops the kernel.

Ignore this - I thought it wasn't fixed in the latest TOT, but I
fat-fingered the reset to the current head and repeated the test on
4.8-rc7. All is working properly again....

Cheers,

Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx