Messages in this thread | | | Date | Mon, 21 Mar 2016 16:04:45 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [patch 2/4] x86/perf/intel/cstate: Sanitize probing |
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On Mon, 21 Mar 2016, Thomas Gleixner wrote:
> On Mon, 21 Mar 2016, Peter Zijlstra wrote: > > > On Mon, Mar 21, 2016 at 02:19:27PM +0000, Liang, Kan wrote: > > > > > > - /* Probe the cstate events. */ > > > > - for (i = 0; i < max_event_nr; i++) { > > > > - if (!msr[i].test(i) || rdmsrl_safe(msr[i].msr, &val)) > > > > - msr[i].attr = NULL; > > > > - } > > > > > > I think we need to update msr[i].attr as well. > > > Because in cstate_pmu_event_init we still need it to do check. > > > > Yeah, this is exploding on all sides.. > > Gah crap. Why did this not explode in my face? Delta patch below.
Duh, ignore it. Brain not working.
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