lkml.org 
[lkml]   [2020]   [Oct]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 1/3] x86, sched: check for counters overflow in frequency invariant accounting
On Sun, May 31, 2020 at 08:24:51PM +0200, Giovanni Gherdovich wrote:

Hi Giovanni!

> +error:
> + pr_warn("Scheduler frequency invariance went wobbly, disabling!\n");
> + schedule_work(&disable_freq_invariance_work);
> +}

I'm getting reports that we trigger this on resume. Would it make sense
to hook into tsc_{save,restore}_sched_clock_state() (or somewhere near
there) to reset the state (basically call init_counter_refs() again to
ensure we're not having to deal with crazy ?

\
 
 \ /
  Last update: 2020-10-22 10:47    [W:0.326 / U:2.404 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site