[LTP] LTP mm test fails, may be test case have some unclear problem

[Levi W. <wan...@gm...>]

Hi guys,

LTP testing on RHEL-7.0 hit this issue. it's re-emerge not often.

Does anyone know this?


-----[cut here ]----

<<<test_start>>>
tag=oom01 stime=1392954542
cmdline="oom01"
contacts=""
analysis=exit
<<<test_output>>>
oom01       0  TINFO  :  set overcommit_memory to 2
oom01       0  TINFO  :  allocating 3221225472 bytes.
oom01       0  TINFO  :  allocating 3221225472 bytes.
oom01       0  TINFO  :  allocating 3221225472 bytes.
oom01       0  TINFO  :  allocating 3221225472 bytes.
oom01       0  TINFO  :  set overcommit_memory to 2
oom01       0  TINFO  :  expected victim is 31115.
oom01       0  TINFO  :  set overcommit_memory to 0
oom01       0  TINFO  :  expected victim is 31135.
oom01       1  TFAIL  :  the victim unexpectedly failed: 9
oom01       0  TINFO  :  set overcommit_memory to 1
oom01       0  TINFO  :  start normal OOM testing.
oom01       0  TINFO  :  expected victim is 31496.
oom01       0  TINFO  :  start OOM testing for mlocked pages.
oom01       0  TINFO  :  expected victim is 31514.
oom01       0  TINFO  :  start OOM testing for KSM pages.
oom01       0  TINFO  :  expected victim is 31525.
oom01       0  TINFO  :  set overcommit_memory to 0
<<<execution_status>>>


according to the console log, all of the oom01 process was killed, but
process 31115 was missing.

----[cut here ]----

[ 4611.722530] [11114]     0 11114    43018      587      87     5020
           0 beah-rhts-task
[ 4611.724547] [11144]     0 11144    28804        0      14       57
           0 runtest
[ 4611.726410] [11182]     0 11182    28867       95      14       34
           0 rhts-test-runne
[ 4611.728430] [11210]     0 11210    27045        0      12       89
           0 make
[ 4611.730235] [30217]     0 30217     2936        1      10       98
           0 runtest.sh
[ 4611.732183] [ 6237]     0  6237    70947        0      36      145
           0 rsyslogd
[ 4611.734079] [16197]     0 16197    31348        1      17       61
           0 anacron
[ 4611.735968] [  972]     0   972     3001        1      10      173
           0 runltp
[ 4611.737869] [ 1089]     0  1089     1852        4       9       29
           0 ltp-pan
[ 4611.739497] [31114]     0 31114     2152       38      10        1
           0 oom01
[ 4611.740944] [31135]     0 31135  3934312  1872550    7647  2037330
           0 oom01
[ 4611.742386] [31495]     0 31495    26973       19      11        0
           0 sleep
[ 4611.743800] Out of memory: Kill process 31135 (oom01) score 932 or
sacrifice child
[ 4611.745158] Killed process 31135 (oom01) total-vm:15737248kB,
anon-rss:7490200kB, file-rss:0kB
[ 4682.545284] oom01 invoked oom-killer: gfp_mask=0x280da, order=0,
oom_score_adj=0

-- 
Regards，
Levi Wang
Email: wan...@gm...