lkml.org 
[lkml]   [2020]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 11/19] sched/core: Make migrate disable and CPU hotplug cooperative
On 2020-11-18 09:44:34 [-0500], Qian Cai wrote:
> On Tue, 2020-11-17 at 19:28 +0000, Valentin Schneider wrote:
> > We did have some breakage in that area, but all the holes I was aware of
> > have been plugged. What would help here is to see which tasks are still
> > queued on that outgoing CPU, and their recent activity.
> >
> > Something like
> > - ftrace_dump_on_oops on your kernel cmdline
> > - trace-cmd start -e 'sched:*'
> > <start the test here>
> >
> > ought to do it. Then you can paste the (tail of the) ftrace dump.
> >
> > I also had this laying around, which may or may not be of some help:
>
> Once I have found a reliable reproducer, I'll report back.

any update?

Sebastian

\
 
 \ /
  Last update: 2020-11-23 19:15    [W:1.503 / U:0.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site