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I found the following line in my /var/log/messages:

kernel: [ 1414.501308] pgrep[3753]: segfault at 7fff90aa98bd ip 00007f116f215530 sp 00007fff90a9fc60 error 4 in libc-2.11.3.so[7f116f1a3000+159000]

can anyone explain me how can possibly pgrep exit for a segmentation fault? Is my system somehow faulty? In this case, what should I test (and how)?

Thanks a lot.

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Did you do any recent software/hardware upgrades? –  Khaled Jan 22 '13 at 15:02
    
Nope.. Nothing weird at least. –  lorenzo.marcon Jan 22 '13 at 15:11
    
now sudo gave me an access violation. Hard disk issue? –  lorenzo.marcon Jan 22 '13 at 16:26
    
Umm no, something wrong with some shared library. Might be worthwhile to get a coredump on segfault. What access violation are you getting. –  Soham Chakraborty Jan 22 '13 at 16:44
    
How can I get the coredump? It's hard to replicate, it occurs randomly.. –  lorenzo.marcon Jan 22 '13 at 23:05

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