Hello

Below is the backtrace. I have seen the behaviour without eval and Postgres and I will try to take a trace tomorrow. In the debug log actually there is no error. Since I have only one worker the PID just changes to the new worker without any info. Since I am using nginx as proxy only I am suspecting that the error has to do with the proxy functionality.


[root@ape-01 nginx]# gdb /usr/local/nginx/sbin/nginx /var/log/nginx/core.31000
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6_4.1)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
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and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /usr/local/nginx/sbin/nginx...done.
[New Thread 31000]
Missing separate debuginfo for /usr/local/pgsql/lib/libpq.so.5
Try: yum --disablerepo='*' --enablerepo='*-debug*' install /usr/lib/debug/.build-id/50/df7babee4e7e51a305aed74590ad3d040c5ffb
Missing separate debuginfo for
Try: yum --disablerepo='*' --enablerepo='*-debug*' install /usr/lib/debug/.build-id/81/a81be2e44c93640adedb62adc93a47f4a09dd1
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /usr/local/pgsql/lib/libpq.so.5...(no debugging symbols found)...done.
Loaded symbols for /usr/local/pgsql/lib/libpq.so.5
Reading symbols from /lib64/libpcre.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib64/libpcre.so.0
Reading symbols from /usr/lib64/libcrypto.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libcrypto.so.10
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libfreebl3.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreebl3.so
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_files.so.2
Core was generated by `nginx: worker process '.
Program terminated with signal 11, Segmentation fault.
#0 ngx_pnalloc (pool=0x0, size=950) at src/core/ngx_palloc.c:155
155 if (size <= pool->max) {
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.132.el6.x86_64 nss-softokn-freebl-3.14.3-9.el6.x86_64 openssl-1.0.1e-15.el6.x86_64 pcre-7.8-6.el6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) backtrace full
#0 ngx_pnalloc (pool=0x0, size=950) at src/core/ngx_palloc.c:155
m = <value optimized out>
p = <value optimized out>
#1 0x0000000000437b20 in ngx_http_log_handler (r=0x1bfb540) at src/http/modules/ngx_http_log_module.c:323
line = <value optimized out>
p = <value optimized out>
len = 950
i = <value optimized out>
l = <value optimized out>
log = <value optimized out>
op = 0x19d6358
buffer = <value optimized out>
lcf = 0x19e8b18
#2 0x000000000042d9dd in ngx_http_log_request (r=0x1bfb540) at src/http/ngx_http_request.c:3455
i = <value optimized out>
n = 1
log_handler = 0x1a02868
#3 0x000000000042e04e in ngx_http_free_request (r=0x1bfb540, rc=0) at src/http/ngx_http_request.c:3402
log = 0x1b400f0
pool = <value optimized out>
linger = {l_onoff = 568, l_linger = 0}
cln = 0x0
ctx = <value optimized out>
#4 0x000000000042fe5b in ngx_http_set_keepalive (r=0x1bfb540) at src/http/ngx_http_request.c:2840
tcp_nodelay = <value optimized out>
rev = 0x7fc3cce9d3f8
b = 0x1b402d0
---Type <return> to continue, or q <return> to quit---
i = <value optimized out>
f = <value optimized out>
wev = <value optimized out>
c = 0x7fc3cd0a74d0
hc = 0x1b40138
clcf = 0x19e8890
#5 ngx_http_finalize_connection (r=0x1bfb540) at src/http/ngx_http_request.c:2483
clcf = 0x19e8890
#6 0x0000000000430724 in ngx_http_finalize_request (r=0x1bfb540, rc=-4) at src/http/ngx_http_request.c:2213
c = 0x7fc3cd0a74d0
pr = <value optimized out>
#7 0x000000000042be5d in ngx_http_core_content_phase (r=0x1bfb540, ph=0x1a03468) at src/http/ngx_http_core_module.c:1410
root = 4369847
rc = <value optimized out>
path = {len = 28761224, data = 0x19bdde0 "\320\353\233\001"}
#8 0x0000000000426873 in ngx_http_core_run_phases (r=0x1bfb540) at src/http/ngx_http_core_module.c:888
rc = <value optimized out>
ph = 0x1a03378
cmcf = <value optimized out>
#9 0x000000000042db58 in ngx_http_run_posted_requests (c=0x7fc3cd0a74d0) at src/http/ngx_http_request.c:2171
r = 0x1bfb540
ctx = <value optimized out>
pr = <value optimized out>
#10 0x0000000000440cfb in ngx_http_upstream_handler (ev=0x7fc3cce9e438) at src/http/ngx_http_upstream.c:980
c = 0x7fc3cd0a74d0
r = 0x1b6d1d0
ctx = <value optimized out>
---Type <return> to continue, or q <return> to quit---
u = 0x1b6dc88
#11 0x0000000000423257 in ngx_epoll_process_events (cycle=0x19bdde0, timer=<value optimized out>, flags=<value optimized out>)
at src/event/modules/ngx_epoll_module.c:691
events = 1
revents = 5
instance = <value optimized out>
i = <value optimized out>
level = <value optimized out>
err = <value optimized out>
rev = 0x7fc3cce9e438
wev = <value optimized out>
queue = <value optimized out>
c = 0x7fc3cd0a92d0
#12 0x000000000041abd3 in ngx_process_events_and_timers (cycle=0x19bdde0) at src/event/ngx_event.c:248
flags = 1
timer = 4998
delta = 1393942527536
#13 0x0000000000421a82 in ngx_worker_process_cycle (cycle=0x19bdde0, data=<value optimized out>)
at src/os/unix/ngx_process_cycle.c:816
worker = <value optimized out>
i = <value optimized out>
c = <value optimized out>
#14 0x00000000004201ac in ngx_spawn_process (cycle=0x19bdde0, proc=0x42198c <ngx_worker_process_cycle>, data=0x0,
name=0x4771b3 "worker process", respawn=-3) at src/os/unix/ngx_process.c:198
on = 1
pid = 0
s = 0
---Type <return> to continue, or q <return> to quit---
#15 0x0000000000420e9a in ngx_start_worker_processes (cycle=0x19bdde0, n=1, type=-3) at src/os/unix/ngx_process_cycle.c:364
i = <value optimized out>
ch = {command = 1, pid = 0, slot = 0, fd = 0}
#16 0x0000000000422103 in ngx_master_process_cycle (cycle=0x19bdde0) at src/os/unix/ngx_process_cycle.c:136
title = 0x1a03543 "master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf"
p = <value optimized out>
size = 79
i = 3
n = <value optimized out>
sigio = <value optimized out>
set = {__val = {0 <repeats 16 times>}}
itv = {it_interval = {tv_sec = 26996763, tv_usec = 0}, it_value = {tv_sec = 0, tv_usec = 0}}
live = <value optimized out>
delay = <value optimized out>
ls = <value optimized out>
ccf = 0x19bed58
#17 0x0000000000404e24 in main (argc=<value optimized out>, argv=<value optimized out>) at src/core/nginx.c:407
i = <value optimized out>
log = 0x6a0fa0
cycle = 0x19bdde0
init_cycle = {conf_ctx = 0x0, pool = 0x19bd8f0, log = 0x6a0fa0, new_log = {log_level = 0, file = 0x0, connection = 0,
handler = 0, data = 0x0, action = 0x0, next = 0x0}, log_use_stderr = 0, files = 0x0, free_connections = 0x0,
free_connection_n = 0, reusable_connections_queue = {prev = 0x0, next = 0x0}, listening = {elts = 0x0, nelts = 0,
size = 0, nalloc = 0, pool = 0x0}, paths = {elts = 0x0, nelts = 0, size = 0, nalloc = 0, pool = 0x0}, open_files = {
last = 0x0, part = {elts = 0x0, nelts = 0, next = 0x0}, size = 0, nalloc = 0, pool = 0x0}, shared_memory = {last = 0x0,
part = {elts = 0x0, nelts = 0, next = 0x0}, size = 0, nalloc = 0, pool = 0x0}, connection_n = 0, files_n = 0,
connections = 0x0, read_events = 0x0, write_events = 0x0, old_cycle = 0x0, conf_file = {len = 32,
---Type <return> to continue, or q <return> to quit---
data = 0x7fff2bd1df50 ""}, conf_param = {len = 0, data = 0x0}, conf_prefix = {len = 22, data = 0x7fff2bd1df50 ""},
prefix = {len = 17, data = 0x472f78 "/usr/local/nginx/"}, lock_file = {len = 0, data = 0x0}, hostname = {len = 0,
data = 0x0}}
ccf = <value optimized out>
(gdb)