lkml.org 
[lkml]   [2011]   [Jul]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/4] Fix compaction stalls due to accounting errors in isolated page accounting
Hi there ...

> Re-verification from testers that these patches really do fix their
> problems would be appreciated. Even if hangs disappear, please confirm
> that the values for nr_isolated_anon and nr_isolated_file in *both*
> /proc/zoneinfo and /proc/vmstat are sensible (i.e. usually zero).

I applied these patches to 2.6.38.8 and it run for nearly a month
without any problems. Even Though I did not check nr_isolated_*.
As (at least) patch3 made it into 2.6.39.3 I did not apply the
others any more. And it occurred again this morning:


sysload at 2, iowait at 80% on an idle (single core) system


$ grep nr_isolated /proc/zoneinfo /proc/vmstat
/proc/zoneinfo: nr_isolated_anon 0
/proc/zoneinfo: nr_isolated_file 1
/proc/zoneinfo: nr_isolated_anon 0
/proc/zoneinfo: nr_isolated_file 4294967295
/proc/zoneinfo: nr_isolated_anon 0
/proc/zoneinfo: nr_isolated_file 0
/proc/vmstat:nr_isolated_anon 0
/proc/vmstat:nr_isolated_file 0

I captured several SysRq-* logs, in case they're of interest.

Thomas


\
 
 \ /
  Last update: 2011-07-17 10:55    [W:0.122 / U:6.716 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site