From owner-freebsd-current@FreeBSD.ORG  Wed Aug  4 10:58:33 2004
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From: "ngl" <ngl@ur.ru>
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Date: Wed, 4 Aug 2004 16:58:29 +0600
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Subject: POSIX Thread's locks failed
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Hello all.

Sorry for my english.

I use libpcap and libc_r under FreeBSD 5.2.1-p9,
and i has faced a problem, that sometimes pthread_mutex
doesn't work properly. 
I'm getting packets from bpf with pcap_next function in one
thread and processing them in another. Both threads
are using the same pthread_mutex to synchronize.
Everything works perfectly, but sometimes i get errors
could arise only if synchronization failed.

regards,
Nik