Hello,
since Upgrading our Asterisk System from Kernel 3.18.17 to 4.1.13 it
deadlocks every few hours (kill -9 is the only thing working). Booting
with 3.18 again let it run smooth again.
An strace shows asterisk is looping like this:
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
[pid 6068] read(8, "\1\0\0\0\0\0\0\0", 8) = 8
[pid 6068] poll([{fd=9, events=POLLIN}, {fd=8, events=POLLIN|POLLPRI}],
2, 1000) = 1 ([{fd=8, revents=POLLIN}])
[pid 6068] timerfd_gettime(8, , {it_interval={0, 20000000},
it_value={0, 140592906050976}}) = 0
fd 8 is:
lrwx------ 1 root root 64 Nov 17 15:27 /proc/6025/fd/8 ->
anon_inode:[timerfd]
# cat /proc/6025/stack
[<ffffffff941d60e9>] poll_schedule_timeout+0x49/0x70
[<ffffffff941d76c7>] do_sys_poll+0x3d7/0x590
[<ffffffff941d78bc>] do_restart_poll+0x3c/0x70
[<ffffffff9408e7ff>] sys_restart_syscall+0x1f/0x30
[<ffffffff9463f1ee>] system_call_fastpath+0x12/0x71
[<ffffffffffffffff>] 0xffffffffffffffff
Any ideas how to debug this?
Greets,
Stefan
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
