CPU Spike caused by semanage commands
Anamitra Dutta Majumdar (anmajumd)
anmajumd at cisco.com
Tue Nov 20 23:02:29 UTC 2012
We are in the process of upgrading our product to RHEL6 os. And during
setting of SELinux contexts using semanage commands we see 100 % CPU usage
as below
top - 19:22:33 up 1:00, 1 user, load average: 1.25, 1.15, 1.58
Tasks: 171 total, 2 running, 169 sleeping, 0 stopped, 0 zombie
Cpu(s): 24.7%us, 0.2%sy, 0.0%ni, 75.2%id, 0.0%wa, 0.0%hi, 0.0%si,
0.0%st
Mem: 6113004k total, 5841096k used, 271908k free, 22600k buffers
Swap: 2047992k total, 0k used, 2047992k free, 5078044k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4189 root 20 0 575m 410m 3296 R 100.0 6.9 0:08.17 semanage
21 root 20 0 0 0 0 S 0.3 0.0 0:00.48 events/2
60 root 39 19 0 0 0 S 0.3 0.0 0:00.41 khugepaged
3337 root 20 0 15088 1396 1020 R 0.3 0.0 0:01.29 top
11471 root 39 19 0 0 0 S 0.3 0.0 0:14.53 kipmi0
1 root 20 0 19396 1532 1208 S 0.0 0.0 0:01.10 init.real
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT 0 0 0 0 S 0.0 0.0 0:00.03 migration/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
5 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
6 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
7 root RT 0 0 0 0 S 0.0 0.0 0:00.09 migration/1
8 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1
9 root 20 0 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/1
10 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
11 root RT 0 0 0 0 S 0.0 0.0 0:00.04 migration/2
12 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/2
13 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2
14 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/2
15 root RT 0 0 0 0 S 0.0 0.0 0:00.05 migration/3
16 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/3
17 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/3
18 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/3
19 root 20 0 0 0 0 S 0.0 0.0 0:00.00 events/0
20 root 20 0 0 0 0 S 0.0 0.0 0:00.03 events/1
22 root 20 0 0 0 0 S 0.0 0.0 0:00.89 events/3
23 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuset
24 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper
25 root 20 0 0 0 0 S 0.0 0.0 0:00.00 netns
26 root 20 0 0 0 0 S 0.0 0.0 0:00.00 async/mgr
27 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pm
28 root 20 0 0 0 0 S 0.0 0.0 0:00.02 sync_supers
29 root 20 0 0 0 0 S 0.0 0.0 0:00.01 bdi-default
30 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kintegrityd/0
31 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kintegrityd/1
32 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kintegrityd/2
33 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kintegrityd/3
You have new mail in /var/spool/mail/root
[root at vos-cm144 ~]# ps -efZ | grep semanage
system_u:system_r:initrc_t:s0 root 4189 4188 96 19:22 ?
00:00:12 /usr/bin/python -Es /usr/sbin/semanage user -a -P user -R
sysadm_r system_r specialuser_u
Is this an expected behavior .
Thanks,
Anamitra
More information about the selinux
mailing list