I'm trying to port oops-cache (http://oops-cache.org/oops.eng), a proxy 
server based on threads, to NetBSD pkgsrc. I have NetBSD-current 
(2.99.11) and compile oops with -pthreads option. Then it starts and 
work untill a client connects. Then I have a trap from libpthread, that 
says about error in pthread_mutex_unlock. The exact error is that 
argument for pthread_mutex_unlock is not a mutex. Then libpthread calls 
abort and all fails. But there is no core (abort raises signal SIGABORT, 
that is proceeded by SIG_DFL, there are no limits on coredumpsize and 
all have write access to current directory). The same code works fine on 
FreeBSD and Solaris. Can it be a problem in NetBSD libpthread? (I think, 
that pthread_mutex_lock works, but pthread_mutex_unlock fails)

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WBR, Vsevolod Stakhov