[omniORB] Servant do nothing, but get about 100% CPU

Sergey Kholodilov serghol at gmail.com
Mon Sep 14 14:21:47 BST 2009


Hello,

No clients, no connections, servant just waiting and do nothing. But
sometimes, may be after some days or weeks it starts eating a lot of CPU.

FreeBSD 7.0-STABLE
omniORB 4.1.3 (it beter than 4.1.2. 4.1.2 have this problem too, and in
4.1.2 it happens more frequently)
gcc 4.2.1
Amd64 (I hope, it is not matter, but may be...)

ktrace looks like:

 94319 WMCDispatch CALL  _umtx_op(0xb125a0,0x8,0x1,0xb12580,0x7fffff9fdd90)
 94319 WMCDispatch CSW   stop kernel
 94319 WMCDispatch CSW   resume kernel
 94319 WMCDispatch RET   _umtx_op -1 errno 60 Operation timed out
 94319 WMCDispatch CALL  clock_gettime(0,0x7fffff9fddf0)
 94319 WMCDispatch RET   clock_gettime 0
 94319 WMCDispatch CALL  clock_gettime(0,0x7fffff9fdda0)
 94319 WMCDispatch RET   clock_gettime 0
 94319 WMCDispatch CALL  _umtx_op(0xb125a0,0x8,0x1,0xb12580,0x7fffff9fdd90)
 94319 WMCDispatch CSW   stop kernel
 94319 WMCDispatch CSW   resume kernel
 94319 WMCDispatch RET   _umtx_op -1 errno 60 Operation timed out
 94319 WMCDispatch CALL  clock_gettime(0,0x7fffff9fddf0)
 94319 WMCDispatch RET   clock_gettime 0
 94319 WMCDispatch CALL  clock_gettime(0,0x7fffff9fdda0)
 94319 WMCDispatch RET   clock_gettime 0
 94319 WMCDispatch CALL  _umtx_op(0xb125a0,0x8,0x1,0xb12580,0x7fffff9fdd90)
....

There are no FreeBSD port for omniORB 4.1.4, so I don't try new version yet.
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