>Hi, > >Recently we hit a problem with one of our file systems where 2 kernel threads >were killed holding a kmutex. Due to this all the applications which use the fs blocked waiting for the kmutex. > >I am wondering why there is no synchronization type equivalent to >USYNC_PROCESS_ROBUST (which esse ntially releases the pthread_mutex if the owner dies) for kmutex. >I am sure many must have had this kind of problem, will there be any issue if >the mutex held by a dead thread be released after some time?
kthreads don't die; if a mutex is held forever, there's a bug. You need to break out mdb/kmdb and find out who holds the lock. Casper _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
