Date: Thu, 26 Nov 2015 12:36:33 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-threads@FreeBSD.org Subject: [Bug 204178] stress2 on arm64 thr1 hangs after printing pthread_join error Message-ID: <bug-204178-16-vVsvXlpvCW@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-204178-16@https.bugs.freebsd.org/bugzilla/> References: <bug-204178-16@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204178 --- Comment #1 from Andrew Turner <Andrew@FreeBSD.org> --- I'm not sure if the message is related to the hang. I've seen each independent of each other. It seems the process is stuck in the kernel waiting on a mutex: # pprocstat -t 19405 PID TID COMM TDNAME CPU PRI STATE WCHAN 19405 100607 thr1 - -1 120 sleep umtxn 19405 101334 thr1 - -1 152 sleep umtxn # procstat -k 19405 PID TID COMM TDNAME KSTACK 19405 100607 thr1 - mi_switch sleepq_catch_signals sleepq_wait_sig _sleep umtxq_sleep do_lock_umutex __umtx_op_wait_umutex do_el0_sync 19405 101334 thr1 - mi_switch sleepq_catch_signals sleepq_wait_sig _sleep umtxq_sleep do_lock_umutex __umtx_op_wait_umutex do_el0_sync -- You are receiving this mail because: You are on the CC list for the bug.
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