Re: nginx-0.8.34 with GeoIP enabled segfaulting

[Vladimir Getmanshchuk <vladget@xxxxxxxxxxxx>]

# gdb -c /spool/core/nginx.core.46385 /usr/local/sbin/nginx
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This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `nginx'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libcrypt.so.5...done.
Loaded symbols for /lib/libcrypt.so.5
Reading symbols from /usr/local/lib/libpcre.so.0...done.
Loaded symbols for /usr/local/lib/libpcre.so.0
Reading symbols from /lib/libmd.so.5...done.
Loaded symbols for /lib/libmd.so.5
Reading symbols from /lib/libz.so.5...done.
Loaded symbols for /lib/libz.so.5
Reading symbols from /usr/local/lib/libGeoIP.so.5...done.
Loaded symbols for /usr/local/lib/libGeoIP.so.5
Reading symbols from /usr/local/lib/perl5/5.10.1/mach/CORE/libperl.so...done.
Loaded symbols for /usr/local/lib/perl5/5.10.1/mach/CORE/libperl.so
Reading symbols from /lib/libm.so.5...done.
Loaded symbols for /lib/libm.so.5
Reading symbols from /lib/libutil.so.8...done.
Loaded symbols for /lib/libutil.so.8
Reading symbols from /lib/libc.so.7...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /usr/local/lib/perl5/site_perl/5.10.1/mach/auto/nginx/nginx.so...done.
Loaded symbols for /usr/local/lib/perl5/site_perl/5.10.1/mach/auto/nginx/nginx.so
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0š 0x0000000800b66447 in _GeoIP_seek_record (gi=0x80141d0a0, ipnum=3232261218) at GeoIP.c:635
635šššš GeoIP.c: No such file or directory.
ššššššš in GeoIP.c
(gdb) bt
#0š 0x0000000800b66447 in _GeoIP_seek_record (gi=0x80141d0a0, ipnum=3232261218) at GeoIP.c:635
#1š 0x0000000800b67831 in GeoIP_id_by_ipnum (gi=0x80141d0a0, ipnum=3232261218) at GeoIP.c:1092
#2š 0x0000000800b673cd in GeoIP_country_code_by_ipnum (gi=0x80141d0a0, ipnum=3232261218) at GeoIP.c:991
#3š 0x000000000048bf05 in ngx_http_geoip_country_variable (r=0x801435c00, v=0x8014496e0, data="" at src/http/modules/ngx_http_geoip_module.c:176
#4š 0x000000000045ad38 in ngx_http_get_indexed_variable (r=0x801435c00, index=26) at src/http/ngx_http_variables.c:406
#5š 0x000000000045fded in ngx_http_script_copy_var_len_code (e=0x7fffffffe160) at src/http/ngx_http_script.c:710
#6š 0x0000000000496608 in ngx_http_fastcgi_create_request (r=0x801435c00) at src/http/modules/ngx_http_fastcgi_module.c:740
#7š 0x000000000046283e in ngx_http_upstream_init_request (r=0x801435c00) at src/http/ngx_http_upstream.c:478
#8š 0x00000000004625d4 in ngx_http_upstream_init (r=0x801435c00) at src/http/ngx_http_upstream.c:419
#9š 0x0000000000459033 in ngx_http_read_client_request_body (r=0x801435c00, post_handler=0x4624f0 <ngx_http_upstream_init>) at src/http/ngx_http_request_body.c:58
#10 0x000000000049617d in ngx_http_fastcgi_handler (r=0x801435c00) at src/http/modules/ngx_http_fastcgi_module.c:618
#11 0x000000000044296d in ngx_http_core_content_phase (r=0x801435c00, ph=0x801630ed8) at src/http/ngx_http_core_module.c:1319
#12 0x00000000004416d2 in ngx_http_core_run_phases (r=0x801435c00) at src/http/ngx_http_core_module.c:856
#13 0x0000000000441648 in ngx_http_handler (r=0x801435c00) at src/http/ngx_http_core_module.c:839
#14 0x000000000044e5f4 in ngx_http_process_request (r=0x801435c00) at src/http/ngx_http_request.c:1625
#15 0x000000000044d0a6 in ngx_http_process_request_headers (rev=0x801c00150) at src/http/ngx_http_request.c:1068
#16 0x000000000044c88e in ngx_http_process_request_line (rev=0x801c00150) at src/http/ngx_http_request.c:873
#17 0x000000000044c028 in ngx_http_init_request (rev=0x801c00150) at src/http/ngx_http_request.c:514
#18 0x000000000042edcc in ngx_event_process_posted (cycle=0x801424050, posted=0x5c83c0) at src/event/ngx_event_posted.c:39
#19 0x000000000042ca51 in ngx_process_events_and_timers (cycle=0x801424050) at src/event/ngx_event.c:272
#20 0x0000000000439167 in ngx_worker_process_cycle (cycle=0x801424050, data="" at src/os/unix/ngx_process_cycle.c:795
#21 0x00000000004362d1 in ngx_spawn_process (cycle=0x801424050, proc=0x438f90 <ngx_worker_process_cycle>, data="" name=0x4a4de1 "worker process", respawn=-3) at src/os/unix/ngx_process.c:196
#22 0x000000000043801a in ngx_start_worker_processes (cycle=0x801424050, n=4, type=-3) at src/os/unix/ngx_process_cycle.c:355
#23 0x00000000004376e9 in ngx_master_process_cycle (cycle=0x801424050) at src/os/unix/ngx_process_cycle.c:136
#24 0x000000000040b47c in main (argc=1, argv=0x7fffffffeba8) at src/core/nginx.c:396
(gdb) fr 0
#0š 0x0000000800b66447 in _GeoIP_seek_record (gi=0x80141d0a0, ipnum=3232261218) at GeoIP.c:635
635šššš in GeoIP.c
(gdb) p *gi
$1 = {GeoIPDatabase = 0x80133f700, file_path = 0x80144b040 "/usr/local/www/conf/nginx/GeoIP.dat", cache = 0x801502000 "\\\001", index_cache = 0x0, databaseSegments = 0x80144c0ac,
š databaseType = 1 '\001', mtime = 1269938756, flags = 1, size = 959538, record_length = 3 '\003', charset = 0, record_iter = -1515870811, netmask = -1515870811, last_mtime_check = 1270548268}
(gdb) p buf
$2 = (const unsigned char *) 0x8074f6600 <Address 0x8074f6600 out of bounds>
(gdb) p stack_buffer
$3 = " ÐA\001\b\000\000"
(gdb) p depth
$4 = 29
(gdb)

2010/4/2 Maxim Dounin <mdounin@xxxxxxxxxx>

Hello!

On Fri, Apr 02, 2010 at 06:04:05PM +0300, Vladimir Getmanshchuk wrote:

> (gdb) bt
> #0 š0x0000000800b66447 in _GeoIP_seek_record (gi=0x80141d0a0,
> ipnum=3232261218) at GeoIP.c:635

fr 0
p *gi
p buf
p stack_buffer
p depth

Maxim Dounin

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-- 
Yours sincerely,
Vladimir Getmanshchuk

UNIX System Administrator
Openfilm, LLC

Email: vladget@xxxxxxxxxxxx
Skype: vladimir.getmanshchuk

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