Hi, We've been using mbuffer for years, recently after upgrading SmartOS to the latest version, mbuffer crashes sporadically inside clock_gettime():
# mdb core.mbuffer.28346 Loading modules: [ libc.so.1 ld.so.1 ] > ::status debugging core file of mbuffer (64-bit) from batfs9920 initial argv: ./mbuffer threading model: native threads status: process terminated by SIGSEGV (Segmentation Fault), addr=fffffd7fff390018 > $C fffffd7ffe63dec0 libc.so.1`__cp_can_gettime+0xd(fffffd7fff390000) fffffd7ffe63df00 libc.so.1`__clock_gettime+0x3a(4, fffffd7ffe63df50) fffffd7ffe63df20 libc.so.1`clock_gettime+0x15(4, fffffd7ffe63df50) fffffd7ffe63dfb0 inputThread+0x3d() fffffd7ffe63dfe0 libc.so.1`_thrp_setup+0x8a(fffffd7ffe7e0a40) fffffd7ffe63dff0 libc.so.1`_lwp_start() > ::walk thread | ::findstack -v stack pointer for thread 1: fffffd7fffdfd190 [ fffffd7fffdfd190 libc.so.1`__pollsys+0xa() ] fffffd7fffdfd2b0 libc.so.1`pselect+0x1cb(5, fffffd7fffdfd480, 0, 0, fffffd7fffdfd2c0, 0) fffffd7fffdfd300 libc.so.1`select+0x5a(5, fffffd7fffdfd480, 0, 0, fffffd7fffdfd370) fffffd7fffdff4b0 statusThread+0xe6() fffffd7fffdffb90 main+0xdbb() fffffd7fffdffba0 _start+0x6c() stack pointer for thread 2: fffffd7ffe9eeec0 [ fffffd7ffe9eeec0 libc.so.1`__lwp_park+0x17() ] fffffd7ffe9eeee0 libc.so.1`sema_wait+0x13(421a20) fffffd7ffe9eefb0 outputThread+0x222() fffffd7ffe9eefe0 libc.so.1`_thrp_setup+0x8a(fffffd7ffe7e0240) fffffd7ffe9eeff0 libc.so.1`_lwp_start() stack pointer for thread 3: fffffd7ffe63dec0 [ fffffd7ffe63dec0 libc.so.1`__cp_can_gettime+0xd() ] fffffd7ffe63df00 libc.so.1`__clock_gettime+0x3a(4, fffffd7ffe63df50) fffffd7ffe63df20 libc.so.1`clock_gettime+0x15(4, fffffd7ffe63df50) fffffd7ffe63dfb0 inputThread+0x3d() fffffd7ffe63dfe0 libc.so.1`_thrp_setup+0x8a(fffffd7ffe7e0a40) fffffd7ffe63dff0 libc.so.1`_lwp_start() > To reproduce, just run ,/mbuffer, sometimes it works, sometimes it crashes. Is this a bug? Thanks, -Youzhong ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
