Lexa Software: Nginx-ru@sysoev.ru archive

# gdb ../sbin/nginx ./core.1620

GNU gdb (GDB; openSUSE 11.1) 6.8.50.20081120-cvs

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law. Type "show copying"

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This GDB was configured as "x86_64-suse-linux".

For bug reporting instructions, please see:

<http://bugs.opensuse.org/>...

warning: Can't read pathname for load map: Input/output error.

Reading symbols from /lib64/libcrypt.so.1...done.

Loaded symbols for /lib64/libcrypt.so.1

Reading symbols from /usr/lib64/libpcre.so.0...done.

Loaded symbols for /usr/lib64/libpcre.so.0

Reading symbols from /usr/lib64/libcrypto.so.0.9.8...done.

Loaded symbols for /usr/lib64/libcrypto.so.0.9.8

Reading symbols from /lib64/libz.so.1...done.

Loaded symbols for /lib64/libz.so.1

Reading symbols from /lib64/libc.so.6...done.

Loaded symbols for /lib64/libc.so.6

Reading symbols from /lib64/libdl.so.2...done.

Loaded symbols for /lib64/libdl.so.2

Reading symbols from /lib64/ld-linux-x86-64.so.2...done.

Loaded symbols for /lib64/ld-linux-x86-64.so.2

Core was generated by `nginx: worker process '.

Program terminated with signal 11, Segmentation fault.

#0 0x0000000000427bc2 in ngx_http_close_request (r=0x686750, rc=0) at src/http/ngx_http_request.c:2885

2885 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");

(gdb) bt

#0 0x0000000000427bc2 in ngx_http_close_request (r=0x686750, rc=0) at src/http/ngx_http_request.c:2885

#1 0x00000000004294d4 in ngx_http_finalize_connection (r=0xabd650) at src/http/ngx_http_request.c:2112

#2 0x0000000000429bff in ngx_http_finalize_request (r=0xabd650, rc=0) at src/http/ngx_http_request.c:1854

#3 0x0000000000435883 in ngx_http_upstream_finalize_request (r=0xabd650, u=0xd284d0, rc=-4) at src/http/ngx_http_upstream.c:2959

#4 0x0000000000435da9 in ngx_http_upstream_cleanup (data="" optimized out>) at src/http/ngx_http_upstream.c:2845

#5 0x0000000000428196 in ngx_http_terminate_request (r=<value optimized out>, rc=0) at src/http/ngx_http_request.c:2054

#6 0x0000000000429cce in ngx_http_finalize_request (r=0xf53c38, rc=-1) at src/http/ngx_http_request.c:1887

#7 0x0000000000435883 in ngx_http_upstream_finalize_request (r=0xf53c38, u=0xc7c390, rc=-1) at src/http/ngx_http_upstream.c:2959

#8 0x000000000043651f in ngx_http_upstream_check_broken_connection (r=0xf53c38, ev=0x7f66499f6ca8) at src/http/ngx_http_upstream.c:1019

#9 0x00000000004365a3 in ngx_http_upstream_rd_check_broken_connection (r=0xabd650) at src/http/ngx_http_upstream.c:888

#10 0x0000000000427963 in ngx_http_request_handler (ev=<value optimized out>) at src/http/ngx_http_request.c:1775

#11 0x0000000000417816 in ngx_event_process_posted (cycle=<value optimized out>, posted=0x0) at src/event/ngx_event_posted.c:39

#12 0x00000000004176df in ngx_process_events_and_timers (cycle=0xad11d0) at src/event/ngx_event.c:272

#13 0x000000000041cfc1 in ngx_worker_process_cycle (cycle=0xad11d0, data="" optimized out>) at src/os/unix/ngx_process_cycle.c:795

#14 0x000000000041b863 in ngx_spawn_process (cycle=0xad11d0, proc=0x41cee6 <ngx_worker_process_cycle>, data="">

name=0x454e79 "worker process", respawn=-4) at src/os/unix/ngx_process.c:196

#15 0x000000000041c607 in ngx_start_worker_processes (cycle=0xad11d0, n=8, type=-4) at src/os/unix/ngx_process_cycle.c:355

#16 0x000000000041daf1 in ngx_master_process_cycle (cycle=0xad11d0) at src/os/unix/ngx_process_cycle.c:249

#17 0x000000000040453a in main (argc=<value optimized out>, argv=0x7fff566633b8) at src/core/nginx.c:396

(gdb) fr 0

#0 0x0000000000427bc2 in ngx_http_close_request (r=0x686750, rc=0) at src/http/ngx_http_request.c:2885

2885 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");

(gdb) p c

$1 = (ngx_connection_t *) 0x90beb0

(gdb) p *c

$2 = {data = "" read = 0x141, write = 0x686740, fd = 9459136, recv = 0x9055d0, send = 0, recv_chain = 0xb0,

send_chain = 0x90bec0, listening = 0x0, sent = 9459264, log = 0x0, pool = 0x90bf20, sockaddr = 0x63059f437ce50002, socklen = 0,

addr_text = {len = 4, data = "" "\005"}, local_sockaddr = 0x1d463f9, buffer = 0x4281e7, number = 9486176, requests = 4539729,

buffered = 54, log_error = 7, single_connection = 0, unexpected_eof = 1, timedout = 1, error = 0, destroyed = 0, idle = 0, close = 1,

sendfile = 1, sndlowat = 1, tcp_nodelay = 2, tcp_nopush = 0}

(gdb) p *r

$3 = {signature = 9009072, connection = 0x90beb0, ctx = 0x0, main_conf = 0x0, srv_conf = 0x7f0820, loc_conf = 0x7fb038,

read_event_handler = 0x42a17c <ngx_http_test_reading>, write_event_handler = 0x42a265 <ngx_http_writer>, cache = 0x0,

upstream = 0xaeab78, upstream_states = 0xaecb00, pool = 0xaebc60, header_in = 0x9055f0, headers_in = {headers = {last = 0x6867c0,

part = {elts = 0xaec400, nelts = 5, next = 0x0}, size = 48, nalloc = 20, pool = 0xaebc60}, host = 0xaec430, connection = 0x0,

if_modified_since = 0x0, user_agent = 0xaec400, referer = 0x0, content_length = 0x0, content_type = 0x0, range = 0x0, if_range = 0x0,

transfer_encoding = 0x0, expect = 0x0, accept_encoding = 0x0, via = 0x0, authorization = 0x0, keep_alive = 0x0, x_forwarded_for = 0x0,

user = {len = 0, data = "" ""}, passwd = {len = 0, data = "" cookies = {elts = 0xaec7c0, nelts = 0, size = 8, nalloc = 2,

pool = 0xaebc60}, server = {len = 9, data = "" "tablew.ruaccept-languageacceptaccept-charsetФС Фф\230"},

content_length_n = -1, keep_alive_n = -1, connection_type = 0, msie = 0, msie4 = 0, msie6 = 0, opera = 0, gecko = 1, chrome = 0,

safari = 0, konqueror = 0}, headers_out = {headers = {last = 0x6868e8, part = {elts = 0xaebcb0, nelts = 1, next = 0x0}, size = 48,

nalloc = 20, pool = 0xaebc60}, status = 404, status_line = {len = 0, data = "" "200 OK"}, server = 0x0, date = 0x0,

content_length = 0x0, content_encoding = 0x0, location = 0x0, refresh = 0x0, last_modified = 0x0, content_range = 0x0,

accept_ranges = 0x0, www_authenticate = 0x0, expires = 0x0, etag = 0x0, override_charset = 0x0, content_type_len = 9, content_type = {

len = 31, data = "" "text/html; charset=windows-1251"}, charset = {len = 12, data = "" "windows-1251"},

content_type_lowcase = 0xaeb680 "text/html??", content_type_hash = 101824002410317, cache_control = {elts = 0x0, nelts = 0, size = 0,

nalloc = 0, pool = 0x0}, content_length_n = -1, date_time = 0, last_modified_time = -1}, request_body = 0xaecc08,

lingering_time = 0, start_sec = 1265722505, start_msec = 7, method = 2, http_version = 1001, request_line = {len = 0,

data = "" "РДв"}, uri = {len = 19, data = "" "/site/user_real.php?user=XXXXXЩ}"}, args = {len = 10,

data = "" "user=XXXXXЩ}"}, exten = {len = 3, data = "" "php?user=XXXXXЩ}"}, unparsed_uri = {len = 12, data = "" ""},

method_name = {len = 3, data = "" "GET "}, http_protocol = {len = 8, data = "" ""}, out = 0xf53c18, main = 0x686750,

parent = 0x0, postponed = 0xf54208, post_subrequest = 0x0, posted_requests = 0x0, virtual_names = 0xbb7ff8, phase_handler = 9,

content_handler = 0x44d8ef <ngx_http_fastcgi_handler>, access_code = 0, variables = 0xaec160, ncaptures = 4, captures = 0xaec810,

captures_data = 0x8977c4 "", limit_rate = 0, header_size = 264, request_length = 353, err_status = 404, http_connection = 0x90bf78,

log_handler = 0x4282ab <ngx_http_log_error_handler>, cleanup = 0x0, subrequests = 51, count = 0, blocked = 0, aio = 0, http_state = 6,

complex_uri = 0, quoted_uri = 0, plus_in_uri = 0, zero_in_uri = 0, invalid_header = 0, valid_location = 1, valid_unparsed_uri = 1,

uri_changed = 0, uri_changes = 9, request_body_in_single_buf = 0, request_body_in_file_only = 0, request_body_in_persistent_file = 0,

request_body_in_clean_file = 0, request_body_file_group_access = 0, request_body_file_log_level = 5, subrequest_in_memory = 0,

waited = 0, cached = 0, gzip_tested = 0, gzip_ok = 0, gzip_vary = 0, proxy = 0, bypass_cache = 0, no_cache = 0, limit_zone_set = 0,

limit_req_set = 0, pipeline = 0, plain_http = 0, chunked = 1, header_only = 0, zero_body = 0, keepalive = 1, lingering_close = 0,

discard_body = 0, internal = 1, error_page = 1, ignore_content_encoding = 0, filter_finalize = 0, post_action = 0, request_complete = 0,

request_output = 1, header_sent = 1, expect_tested = 1, root_tested = 0, done = 0, logged = 0, buffered = 0,

main_filter_need_in_memory = 0, filter_need_in_memory = 1, filter_need_temporary = 0, allow_ranges = 0, stat_reading = 0,

stat_writing = 1, state = 0, header_hash = 2609428126162509838, lowcase_index = 12,

lowcase_header = "content-typeete", '\0' <repeats 16 times>,

header_name_start = 0xc8739e "HTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSI"...,

header_name_end = 0xc8737b "HTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSI"...,

header_start = 0xc8737d "HTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSI"...,

header_end = 0xc8739e "HTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSIHTML_CODE_FROM_PAGE_W_SSI"..., uri_start = 0x8977c4 "",

uri_end = 0x8977d0 "", uri_ext = 0x0, args_start = 0x0, request_start = 0x8977c0 "РДв", request_end = 0x8977d9 "",

method_end = 0x8977c2 "в", schema_start = 0x0, schema_end = 0x0, host_start = 0x0, host_end = 0x0, port_start = 0x0, port_end = 0x0,

http_minor = 1, http_major = 1}

(gdb) fr 2

#2 0x0000000000429bff in ngx_http_finalize_request (r=0xabd650, rc=0) at src/http/ngx_http_request.c:1854

1854 ngx_http_finalize_connection(r);

(gdb) p *r

$4 = {signature = 1347703880, connection = 0x7f664a07f468, ctx = 0xabd000, main_conf = 0xad1ae0, srv_conf = 0x7f0820, loc_conf = 0x7fe108,

read_event_handler = 0x436592 <ngx_http_upstream_rd_check_broken_connection>,

write_event_handler = 0x437198 <ngx_http_upstream_process_non_buffered_downstream>, cache = 0x0, upstream = 0xd284d0,

upstream_states = 0xd282c0, pool = 0xaebc60, header_in = 0x0, headers_in = {headers = {last = 0x6867c0, part = {elts = 0xaec400,

nelts = 5, next = 0x0}, size = 48, nalloc = 20, pool = 0xaebc60}, host = 0xaec430, connection = 0x0, if_modified_since = 0x0,

user_agent = 0xaec400, referer = 0x0, content_length = 0x0, content_type = 0x0, range = 0x0, if_range = 0x0, transfer_encoding = 0x0,

expect = 0x0, accept_encoding = 0x0, via = 0x0, authorization = 0x0, keep_alive = 0x0, x_forwarded_for = 0x0, user = {len = 0,

data = "" ""}, passwd = {len = 0, data = "" cookies = {elts = 0xaec7c0, nelts = 0, size = 8, nalloc = 2, pool = 0xaebc60},

server = {len = 9, data = "" "tablew.ruaccept-languageacceptaccept-charsetФС Фф\230"}, content_length_n = -1, keep_alive_n = -1,

connection_type = 0, msie = 0, msie4 = 0, msie6 = 0, opera = 0, gecko = 1, chrome = 0, safari = 0, konqueror = 0}, headers_out = {

headers = {last = 0xabd7e8, part = {elts = 0xabdb30, nelts = 0, next = 0x0}, size = 48, nalloc = 20, pool = 0xaebc60}, status = 200,

status_line = {len = 0, data = "" server = 0x0, date = 0x0, content_length = 0x0, content_encoding = 0x0, location = 0x0,

refresh = 0x0, last_modified = 0x0, content_range = 0x0, accept_ranges = 0x0, www_authenticate = 0x0, expires = 0x0, etag = 0x0,

override_charset = 0x0, content_type_len = 9, content_type = {len = 9, data = "" "text/html"}, charset = {len = 0, data = "">

content_type_lowcase = 0x0, content_type_hash = 0, cache_control = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0},

content_length_n = 1, date_time = 0, last_modified_time = -1}, request_body = 0xaecc08, lingering_time = 0, start_sec = 0,

start_msec = 0, method = 2, http_version = 1001, request_line = {len = 25, data = "" "РДв"}, uri = {len = 17,

data = "" "/mmc/today/274432{\220НRЮ\f)Zf\204"}, args = {len = 0, data = "" exten = {len = 0, data = "" unparsed_uri = {

len = 12, data = "" ""}, method_name = {len = 3, data = "" "GET "}, http_protocol = {len = 8, data = "" ""},

out = 0x0, main = 0x686750, parent = 0x686750, postponed = 0xe2ff78, post_subrequest = 0x0, posted_requests = 0x0, virtual_names = 0x0,

phase_handler = 9, content_handler = 0x44fffa <ngx_http_memcached_handler>, access_code = 0, variables = 0xaec160, ncaptures = 4,

captures = 0xd280e0, captures_data = 0xabc1a0 "/mmc/today/274432{\220НRЮ\f)Zf\204", limit_rate = 0, header_size = 0, request_length = 0,

err_status = 0, http_connection = 0x0, log_handler = 0x4282ab <ngx_http_log_error_handler>, cleanup = 0x0, subrequests = 0, count = 0,

blocked = 0, aio = 0, http_state = 0, complex_uri = 0, quoted_uri = 0, plus_in_uri = 0, zero_in_uri = 0, invalid_header = 0,

valid_location = 1, valid_unparsed_uri = 1, uri_changed = 0, uri_changes = 11, request_body_in_single_buf = 0,

request_body_in_file_only = 0, request_body_in_persistent_file = 0, request_body_in_clean_file = 0, request_body_file_group_access = 0,

request_body_file_log_level = 5, subrequest_in_memory = 0, waited = 0, cached = 0, gzip_tested = 0, gzip_ok = 0, gzip_vary = 0,

proxy = 0, bypass_cache = 0, no_cache = 0, limit_zone_set = 0, limit_req_set = 0, pipeline = 0, plain_http = 0, chunked = 0,

header_only = 0, zero_body = 0, keepalive = 0, lingering_close = 0, discard_body = 0, internal = 1, error_page = 0,

ignore_content_encoding = 0, filter_finalize = 0, post_action = 0, request_complete = 0, request_output = 1, header_sent = 1,

expect_tested = 1, root_tested = 0, done = 0, logged = 0, buffered = 0, main_filter_need_in_memory = 0, filter_need_in_memory = 0,

filter_need_temporary = 0, allow_ranges = 0, stat_reading = 0, stat_writing = 0, state = 0, header_hash = 0, lowcase_index = 0,

lowcase_header = '\0' <repeats 31 times>, header_name_start = 0x0, header_name_end = 0x0, header_start = 0x0, header_end = 0x0,

uri_start = 0x0, uri_end = 0x0, uri_ext = 0x0, args_start = 0x0, request_start = 0x0, request_end = 0x0, method_end = 0x0,

schema_start = 0x0, schema_end = 0x0, host_start = 0x0, host_end = 0x0, port_start = 0x0, port_end = 0x0, http_minor = 0, http_major = 0}

(gdb) fr 9

#9 0x00000000004365a3 in ngx_http_upstream_rd_check_broken_connection (r=0xabd650) at src/http/ngx_http_upstream.c:888

888 ngx_http_upstream_check_broken_connection(r, r->connection->read);

(gdb) p *r

$5 = {signature = 1347703880, connection = 0x7f664a07f468, ctx = 0xabd000, main_conf = 0xad1ae0, srv_conf = 0x7f0820, loc_conf = 0x7fe108,