[lkml]   [2013]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: perf/tracepoint: another fuzzer generated lockup
On Fri, 8 Nov 2013, Frederic Weisbecker wrote:
> There seem to be a loop that takes too long in intel_pmu_handle_irq(). Your two
> previous reports seemed to suggest that lbr is involved, but not this one.

I may be wrong but I think everything between <NMI> and <EOE> is just
noise from the NMI perf-event watchdog timer kicking in.

Why that code would be reading the LBR registers I don't know.


 \ /
  Last update: 2013-11-08 21:41    [W:0.055 / U:0.864 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site