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List:       linux-kernel
Subject:    Impossible high cpu-time values for migration threads
From:       Markus Trippelsdorf <markus () trippelsdorf ! de>
Date:       2011-11-17 22:17:31
Message-ID: 20111117221731.GA9229 () x4 ! trippels ! de
[Download RAW message or body]

Just saw this for the first time:

  1  [||                                                          2.4%]     Tasks: \
63, 31 thr, 54 kthr; 1 running  2  [||                                                \
1.7%]     Load average: 0.03 0.06 0.36   3  [||                                       \
1.0%]     Uptime: 06:36:59  4  [||                                                    \
1.0%]  Mem[||||||||||||||||||||||||||||||||||                   1427/7977MB]
  Mem:7977M used:1427M buffers:0M cache:2604M 
  Swp[|                                                       0/2047MB]

  PID USER     PRI  NI  VIRT   RES   SHR S CPU% MEM%   TIME+  Command
   11 root      RT   0     0     0     0 S  0.0  0.0  5h38:27 migration/2
   14 root      RT   0     0     0     0 S  0.0  0.0  5h30:29 migration/3
 1476 root      20   0 97672 38928  5024 S  1.0  0.5  4:49.06 /usr/bin/X -nolisten \
tcp :0 -auth /home/markus/.serverauth.1459  1281 markus    20   0  931M  317M 40592 S \
0.0  4.0  4:19.17 firefox  1538 markus    20   0  200M 34544 18848 S  0.0  0.4  \
2:43.89 konsole -e /home/markus/start_screen  868 mpd       20   0  294M 20336  4868 \
                S  0.0  0.2  2:04.88 mpd --no-daemon
...

As you can see the machine has an uptime of 06:36:59 and the two
migration threads both show greater than 5h30min cpu-time.

(Linux 3.2.0-rc2-00046-g317bfe8 on amd64)

-- 
Markus
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