Core dumps in KDE 3.1 something do with libc_r

[Bri]

Not everytime but most times when I close a program I get the application box 
and in the backtrace box the error is always the same.

I've attached the blacktrace log.

Besides this KDE functions fine and never happens when using an application on 
when closing one.

Bri,
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(no debugging symbols found)...0x28ec256c in __sys_poll ()
   from /usr/lib/libc_r.so.4
#0  0x28ec256c in __sys_poll () from /usr/lib/libc_r.so.4
#1  0x28ec1ab8 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.4
#2  0x28ec147d in _thread_kern_scheduler () from /usr/lib/libc_r.so.4
#3  0x0 in ?? ()