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Иногда падает nginx?
Добрый вечер, Игорь.
Иногда у меня падает nginx таким вот образом:
Core was generated by `nginx: worker'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000000000423177 in ngx_event_process_posted (cycle=0x598da0,
posted=0x58b1f0) at src/event/ngx_event_posted.c:37
37 ngx_delete_posted_event(ev);
(gdb) bt
#0 0x0000000000423177 in ngx_event_process_posted (cycle=0x598da0,
posted=0x58b1f0) at src/event/ngx_event_posted.c:37
#1 0x000000000042104c in ngx_process_events_and_timers (cycle=0x598da0) at
src/event/ngx_event.c:278
#2 0x000000000042cdeb in ngx_worker_process_cycle (cycle=0x598da0, data=0x0)
at src/os/unix/ngx_process_cycle.c:767
#3 0x0000000000429e50 in ngx_spawn_process (cycle=0x598da0, proc=0x42cc6d
<ngx_worker_process_cycle>, data=0x0, name=0x470950 "worker process",
respawn=-2) at src/os/unix/ngx_process.c:187
#4 0x000000000042bcd5 in ngx_start_worker_processes (cycle=0x598da0, n=4,
type=-2) at src/os/unix/ngx_process_cycle.c:332
#5 0x000000000042b3f9 in ngx_master_process_cycle (cycle=0x598da0) at
src/os/unix/ngx_process_cycle.c:124
#6 0x0000000000402e55 in main (argc=1, argv=0x7fffa9ee7bd8) at
src/core/nginx.c:355
(gdb)
При этом ev->next и ev->prev есть NULL.
Если посмотреть на ngx_delete_posted_event то можно видеть:
#define ngx_delete_posted_event(ev) *(ev->prev) = ev->next; if (ev->next) { ev->next->prev = ev->prev; } ev->prev = NULL; ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "delete posted event %p", ev);
И вот мне не совсем понятно, почему тут нет проверки на для ev->prev на NULL?
--
| |*| | Kirill A. Korinskiy <catap@xxxxxxxx>
| | |*| proud (maniac)? (developer|hacker)
|*|*|*| http://catap.ru/ - +7 (916) 3-604-704 - xmpp:catap@xxxxxxxx
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