Re: [PATCH 1/3] perf/x86/intel: Factor out common code of PMI handler

2018-08-07 Thread Liang, Kan
On 8/6/2018 2:20 PM, Peter Zijlstra wrote: On Mon, Aug 06, 2018 at 10:23:41AM -0700, kan.li...@linux.intel.com wrote: + if (++loops > 100) { + static bool warned; + + if (!warned) { + WARN(1, "perfevents: irq loop stuck!\n"); +

Re: [PATCH 1/3] perf/x86/intel: Factor out common code of PMI handler

2018-08-06 Thread Peter Zijlstra
On Mon, Aug 06, 2018 at 10:23:41AM -0700, kan.li...@linux.intel.com wrote: > + if (++loops > 100) { > + static bool warned; > + > + if (!warned) { > + WARN(1, "perfevents: irq loop stuck!\n"); > + perf_event_print_debug(); > +