On Sunday 13 August 2006 03:36, Peter van Heusden wrote: > Hi everyone > > Almost every day, some time around midnight, my FreeBSD 5-STABLE kernel > panics. I've attached the output of a kgdb session of the saved core > file - is there any further info that would be useful to debugging? I've > got no idea where to start looking for a solution to this problem, so > please help!!
A thread is sleeping while holding a mutex. > (kgdb) list *0xc066dfc3 > 0xc066dfc3 is in propagate_priority > (/usr/src/sys/kern/subr_turnstile.c:245). > 240 /* > 241 * Pick up the lock that td is blocked on. > 242 */ > 243 ts = td->td_blocked; > 244 MPASS(ts != NULL); > 245 tc = TC_LOOKUP(ts->ts_lockobj); > 246 mtx_lock_spin(&tc->tc_lock); > 247 > 248 /* > 249 * This thread may not be blocked on this > turnstile anymore > (kgdb) backtrace > #19 0xc066dfc3 in propagate_priority (td=0xc1e22c00) at > /usr/src/sys/kern/subr_turnstile.c:243 Do the following in 'kgdb': frame 19 p td->td_proc->p_pid (this will output the 'pid' of the misbehaving thread) proc <pid> (<pid> is the pid from the previous command, this switches you to that thread) backtrace That backtrace will then show you which thread slept while holding a mutex. -- John Baldwin _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
