lkml.org 
[lkml]   [2014]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: nohz fail (was: perf related boot hang.)
On Thu, Sep 4, 2014 at 10:17 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> Yeah, that's expected. You need to apply the nine patches on top of -rc1:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> nohz/fixes
>
> "nohz: Restore NMI safe local irq work for local nohz kick" only fixes
> part of the issue.

Ok, but if the whole series is needed, isn't it better if it all goes
into 3.17? Otherwise 3.17 is a clear regression for some users; it's
definitely for me since before 3.17-rc1 I never saw this bug and now I
see it every time I do something CPU intensive. Maybe the regression
is acceptable because the it's confined to some CONFIG_NO_HZ_*
combination (I think) which is still rather experimental, that's your
call to make, but it's still a regression.


\
 
 \ /
  Last update: 2014-09-04 23:41    [W:0.119 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site