I was able to reproduce the issue locally and have located the issue. The initial analysis is here: https://smartos.org/bugview/OS-5515. More detail will be added as the problem is addressed.
On 16 July 2016 at 20:00, Patrick Mooney <[email protected]> wrote: > What version of the platform image do you have installed (uname -v)? > Would you be willing to make the core file available? > > On 16 July 2016 at 19:54, Youzhong Yang <[email protected]> wrote: > >> 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> >> <https://www.listbox.com/member/archive/rss/184463/26937779-40cf8a10> | >> Modify >> <https://www.listbox.com/member/?&;> >> Your Subscription <http://www.listbox.com> >> > > ------------------------------------------- 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
