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[Gavin Guo <gavin.guo@xxxxxxxxxxxxx>]

** Changed in: linux-armadaxp (Ubuntu)
     Assignee: Gavin Guo (mimi0213kimo) => (unassigned)

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https://bugs.launchpad.net/bugs/1034197

Title:
  Out of memory error when running min_free_kbytes testcase on precise-
  updates on armadaxp

Status in The Eilt project:
  Opinion
Status in “linux-armadaxp” package in Ubuntu:
  New

Bug description:
  Impact:  After running the testcase min_free_kbytes, the system
  becomes unusable

  Build Version and Date:  ubuntu@ubuntu:~$ uname -a
  Linux ubuntu 3.2.0-1605-armadaxp #8-Ubuntu SMP Sat Jul 7 22:36:46 UTC 2012 armv7l armv7l armv7l GNU/Linux

  Steps to reproduce:
  1.  Download, build and  Install LTP testsuite
  2. echo 0 > /proc/sys/kernel/hung_task_timeout_secs
  3. cd   /ltp-full-20120614/testcases/kernel/mem/tunable
  4.  sudo ./min_free_kbytes

  This is the output when I ran this from a script, so I could get the oom* info
  sudo ./runtest.sh
  [sudo] password for ubuntu:
  cat /proc/1409/task/1409/oom*
  0
  1
  0
  ubuntu@ubuntu:~/ltp-full-20120614/testcases/kernel/mem/tunable$ min_free_kbytes    0  TINFO  :  set overcommit_memory to 2
  min_free_kbytes    0  TINFO  :  set min_free_kbytes to 3624
  memfree is 2970220 kB before eatup mem
  memfree is 81228 kB after eatup mem
  min_free_kbytes    0  TINFO  :  set min_free_kbytes to 1513802
  [ 1643.106611] Out of memory: Kill process 264 (upstart-udev-br) score 1 or sacrifice child
  [ 1643.114754] Killed process 264 (upstart-udev-br) total-vm:1960kB, anon-rss:0kB, file-rss:0kB
  [ 1643.267693] Out of memory: Kill process 424 (upstart-socket-) score 1 or sacrifice child
  [ 1643.275814] Killed process 424 (upstart-socket-) total-vm:1892kB, anon-rss:0kB, file-rss:0kB
  [ 1643.424805] Out of memory: Kill process 460 (dhclient3) score 1 or sacrifice child
  [ 1643.432462] Killed process 460 (dhclient3) total-vm:1884kB, anon-rss:0kB, file-rss:0kB
  [ 1643.635470] Out of memory: Kill process 657 (dbus-daemon) score 1 or sacrifice child
  [ 1643.643286] Killed process 657 (dbus-daemon) total-vm:2324kB, anon-rss:0kB, file-rss:0kB
  [ 1644.085534] Out of memory: Kill process 670 (rsyslogd) score 1 or sacrifice child
  [ 1644.093079] Killed process 670 (rsyslogd) total-vm:30204kB, anon-rss:112kB, file-rss:140kB

  The output that shows the kernel panic is in the following link:
  https://pastebin.canonical.com/71710/

  A description and the expected output of the testcase can be found here:
  http://www.mail-archive.com/ltp-list@xxxxxxxxxxxxxxxxxxxxx/msg13978.html

  The system is n2 and is currently available for debugging

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