[Bug 260004] Re: ld-linux.so.2 process excessively consumes CPU

[ivelo]

I have had the same problem. Here is data from atop and syslog where oom
killer runs:

-----------------------------------------------------------------------
Here is my atop entry just before the oom killer hoses me: 
-----------------------------------------------------------------------

ATOP - velo               2008/12/16  10:29:32              600 seconds elapsed
PRC | sys  12m55s | user   2m31s | #proc    206 | #zombie    2 | #exit    300 |
CPU | sys    118% | user     27% | irq       1% | idle    205% | wait     49% |
cpu | sys     39% | user     17% | irq       1% | idle     27% | cpu000 w 16% |
cpu | sys     27% | user      5% | irq       0% | idle     58% | cpu003 w 11% |
cpu | sys     27% | user      3% | irq       0% | idle     58% | cpu001 w 12% |
cpu | sys     27% | user      2% | irq       0% | idle     61% | cpu002 w 10% |
CPL | avg1  17.48 | avg5    9.00 | avg15   4.28 | csw  1949602 | intr  709492 |
MEM | tot    4.0G | free   25.4M | cache   2.2G | buff    0.4M | slab   54.6M |
SWP | tot    0.0M | free    0.0M |              | vmcom   3.4G | vmlim   7.9G |
PAG | scan 2368e5 | stall      0 |              | swin       0 | swout      0 | 
DSK |         sda | busy     33% | read   38664 | write  11725 | avio    4 ms |
DSK |         sdd | busy      2% | read    1625 | write   3420 | avio    2 ms |
DSK |         sdb | busy      0% | read     125 | write      2 | avio    7 ms |
DSK |         sdc | busy      0% | read       2 | write      2 | avio    5 ms |
NET | transport   | tcpi  103286 | tcpo  101960 | udpi     463 | udpo     534 |
NET | network     | ipi   103800 | ipo   102577 | ipfrw      0 | deliv 103800 |
NET | eth0     0% | pcki   16157 | pcko   28041 | si  222 Kbps | so   54 Kbps |
NET | lo     ---- | pcki   74574 | pcko   74574 | si  344 Kbps | so  344 Kbps |

  PID MINFLT MAJFLT      VSTEXT  VSIZE  RSIZE  VGROW  RGROW  MEM CMD     1/11  
12668 222539   1202        103K 859.5M 659.6M 665.9M 549.1M  16% ld-linux.so.2
31287    333    283         24K 511.4M 319.8M     0K -27.1M   8% firefox
 7402  80267    241       1592K 365.7M 175.9M 18256K -8800K   4% Xorg

-----------------------------------------------------------------------
Here is the syslog entry where oom killer runs:
-----------------------------------------------------------------------

Dec 16 10:31:17 velo kernel: [611084.971774] kded invoked oom-killer:
gfp_mask=0x1201d2, order=0, oomkilladj=0


Notice that ld-linux.so.2 is the big memory user. Now, where is the problem?

-- 
ld-linux.so.2 process excessively consumes CPU
https://bugs.launchpad.net/bugs/260004
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