Re: Worker process exited on signal 11

[Igor Sysoev <is@xxxxxxxxxxxxx>]

On Tue, Jul 10, 2007 at 10:34:20AM +0300, Vladimir Shiray wrote:

> Igor Sysoev wrote:
> >On Tue, Jul 10, 2007 at 10:00:00AM +0300, Vladimir Shiray wrote:
> >
> >  
> >>Вот результат на последней сборке 0.5.27
> >>Получил сразу три core одновременно после запуска ab
> >>( в nginx.conf: worker_processes  3; )
> >>
> >>По моему субъективному ощущению, ошибка проявляется
> >>после большого перерыва между HTTPs запросами,
> >>обрабатываемыми одним и тем же процессом.
> >>На самом деле  так и происходит, загрузка на HTTPs
> >>ничтожная в сравнений с обычным HTTP.
> >>Сразу после старта  nginx, используя ab, мне не удавалось
> >>ее получить ни разу.
> >>
> >>------------------------------------
> >>(gdb) bt
> >>#0  0xb7ed9c96 in sk_free () from /lib/libcrypto.so.4
> >>#1  0xb7e96935 in CRYPTO_set_ex_data () from /lib/libcrypto.so.4
> >>#2  0xb7e96b44 in CRYPTO_free_ex_data () from /lib/libcrypto.so.4
> >>#3  0xb7f7443d in SSL_SESSION_free () from /lib/libssl.so.4
> >>#4  0x0807cddd in ngx_http_upstream_ssl_handshake (c=0x80d8edc) at 
> >>src/http/ngx_http_upstream.c:690
> >>#5  0x0805aa6c in ngx_event_process_posted (cycle=0x80bc728, 
> >>posted=0x80aacc0) at src/event/ngx_event_posted.c:39
> >>#6  0x08059671 in ngx_process_events_and_timers (cycle=0x80bc728) at 
> >>src/event/ngx_event.c:272
> >>#7  0x08061dca in ngx_worker_process_cycle (cycle=0x80bc728, data=0x0) 
> >>at src/os/unix/ngx_process_cycle.c:747
> >>#8  0x0805f4aa in ngx_spawn_process (cycle=0x80bc728, proc=0x8061830 
> >><ngx_worker_process_cycle>, data=0x0,
> >>   name=0x809a9b4 "worker process", respawn=-2) at 
> >>src/os/unix/ngx_process.c:187
> >>#9  0x0806045c in ngx_start_worker_processes (cycle=0x80bc728, n=3, 
> >>type=-2) at src/os/unix/ngx_process_cycle.c:327
> >>#10 0x08060c5c in ngx_master_process_cycle (cycle=0x80bc728) at 
> >>src/os/unix/ngx_process_cycle.c:119
> >>#11 0x0804c065 in main (argc=1, argv=0xbfeee584) at src/core/nginx.c:353
> >>
> >>(gdb) bt
> >>#0  0xb7f667d2 in ssl3_connect () from /lib/libssl.so.4
> >>#1  0xb7f71db8 in SSL_do_handshake () from /lib/libssl.so.4
> >>#2  0x08065f3c in ngx_ssl_handshake (c=0x80d9c50) at 
> >>src/event/ngx_event_openssl.c:407
> >>#3  0x080662eb in ngx_ssl_handshake_handler (ev=0x80e9d00) at 
> >>src/event/ngx_event_openssl.c:539
> >>#4  0x0805aa6c in ngx_event_process_posted (cycle=0x80bc728, 
> >>posted=0x80aacc0) at src/event/ngx_event_posted.c:39
> >>#5  0x08059671 in ngx_process_events_and_timers (cycle=0x80bc728) at 
> >>src/event/ngx_event.c:272
> >>#6  0x08061dca in ngx_worker_process_cycle (cycle=0x80bc728, data=0x0) 
> >>at src/os/unix/ngx_process_cycle.c:747
> >>#7  0x0805f4aa in ngx_spawn_process (cycle=0x80bc728, proc=0x8061830 
> >><ngx_worker_process_cycle>, data=0x0,
> >>   name=0x809a9b4 "worker process", respawn=-2) at 
> >>src/os/unix/ngx_process.c:187
> >>#8  0x0806045c in ngx_start_worker_processes (cycle=0x80bc728, n=3, 
> >>type=-2) at src/os/unix/ngx_process_cycle.c:327
> >>#9  0x08060c5c in ngx_master_process_cycle (cycle=0x80bc728) at 
> >>src/os/unix/ngx_process_cycle.c:119
> >>#10 0x0804c065 in main (argc=1, argv=0xbfeee584) at src/core/nginx.c:353
> >>
> >>(gdb) bt
> >>#0  0xb7ed9c96 in sk_free () from /lib/libcrypto.so.4
> >>#1  0xb7e96935 in CRYPTO_set_ex_data () from /lib/libcrypto.so.4
> >>#2  0xb7e96b44 in CRYPTO_free_ex_data () from /lib/libcrypto.so.4
> >>#3  0xb7f7443d in SSL_SESSION_free () from /lib/libssl.so.4
> >>#4  0x0807cddd in ngx_http_upstream_ssl_handshake (c=0x80d99b0) at 
> >>src/http/ngx_http_upstream.c:690
> >>#5  0x0805aa6c in ngx_event_process_posted (cycle=0x80bc728, 
> >>posted=0x80aacc0) at src/event/ngx_event_posted.c:39
> >>#6  0x08059671 in ngx_process_events_and_timers (cycle=0x80bc728) at 
> >>src/event/ngx_event.c:272
> >>#7  0x08061dca in ngx_worker_process_cycle (cycle=0x80bc728, data=0x0) 
> >>at src/os/unix/ngx_process_cycle.c:747
> >>#8  0x0805f4aa in ngx_spawn_process (cycle=0x80bc728, proc=0x8061830 
> >><ngx_worker_process_cycle>, data=0x0,
> >>   name=0x809a9b4 "worker process", respawn=-2) at 
> >>src/os/unix/ngx_process.c:187
> >>#9  0x0806045c in ngx_start_worker_processes (cycle=0x80bc728, n=3, 
> >>type=-2) at src/os/unix/ngx_process_cycle.c:327
> >>#10 0x08060c5c in ngx_master_process_cycle (cycle=0x80bc728) at 
> >>src/os/unix/ngx_process_cycle.c:119
> >>#11 0x0804c065 in main (argc=1, argv=0xbfeee584) at src/core/nginx.c:353
> >>    
> >
> >Мне нужен вывод
> >
> >fr 4
> >p *c
> >p *u->peer
> >
> >для всех трёх случаев.
> >
> >  
> (gdb) fr 4
> #4  0x0807cddd in ngx_http_upstream_ssl_handshake (c=0x80d8edc) at 
> src/http/ngx_http_upstream.c:690
> 690     in src/http/ngx_http_upstream.c
> (gdb) p *c
> $1 = {data = 0x810f198, read = 0x80e2f14, write = 0x80e94ac, fd = 26, 
> recv = 0x8065b50 <ngx_ssl_recv>, send = 0x8065560 <ngx_ssl_write>,
>  recv_chain = 0x8065eb0 <ngx_ssl_recv_chain>, send_chain = 0x8065810 
> <ngx_ssl_send_chain>, listening = 0x0, sent = 0, log = 0x810e920,
>  pool = 0x8135fe0, sockaddr = 0x0, socklen = 0, addr_text = {len = 0, 
> data = 0x0}, ssl = 0x8136828, buffer = 0x0, number = 96647,
>  buffered = 0, log_error = 1, single_connection = 0, unexpected_eof = 
> 0, timedout = 0, error = 0, destroyed = 0, idle = 0, close = 0,
>  sendfile = 0, sndlowat = 0, tcp_nodelay = 0, tcp_nopush = 0}
> (gdb) p *u->peer
> Structure has no component named operator*.

p u->peer

> (gdb) fr 4
> #4  0x0805aa6c in ngx_event_process_posted (cycle=0x80bc728, 
> posted=0x80aacc0) at src/event/ngx_event_posted.c:39
> 39              ev->handler(ev);
> (gdb) p *c
> No symbol "c" in current context.
> (gdb) p *u->peer
> No symbol "u" in current context.
> -------------------------

fr 2
p *c
p u->peer

> (gdb) fr 4
> #4  0x0807cddd in ngx_http_upstream_ssl_handshake (c=0x80d99b0) at 
> src/http/ngx_http_upstream.c:690
> 690             u->peer.save_session(&u->peer, u->peer.data);
> (gdb) p *c
> $1 = {data = 0x80c5368, read = 0x80e35c8, write = 0x80e9b60, fd = 27, 
> recv = 0x8065b50 <ngx_ssl_recv>, send = 0x8065560 <ngx_ssl_write>,
>  recv_chain = 0x8065eb0 <ngx_ssl_recv_chain>, send_chain = 0x8065810 
> <ngx_ssl_send_chain>, listening = 0x0, sent = 0, log = 0x80bc330,
>  pool = 0x80f35f8, sockaddr = 0x0, socklen = 0, addr_text = {len = 0, 
> data = 0x0}, ssl = 0x80f3e40, buffer = 0x0, number = 96663,
>  buffered = 0, log_error = 1, single_connection = 0, unexpected_eof = 
> 0, timedout = 0, error = 0, destroyed = 0, idle = 0, close = 0,
>  sendfile = 0, sndlowat = 0, tcp_nodelay = 0, tcp_nopush = 0}
> (gdb) p *u->peer
> Structure has no component named operator*.

p u->peer


-- 
Игорь Сысоев
http://sysoev.ru