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From: "Rodrigo Aliste P." <raliste@gmail.com>
Date: Fri, 11 Sep 2009 11:51:58 -0400
Message-ID: <93e82a90909110851y1f14a019o4c3fdcca423621b3@mail.gmail.com>
To: users@httpd.apache.org
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Subject: [users@httpd] http problem

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Hi

I know this is no a support forum, but I'm having troubles with Apache and I
don't know what could it be!

The problem is that sometimes the Httpd child pids start to segfault without
any reason, memory is good, cpu is good, is all good!
I've stacktraced a segfault and it shows me nothing. The only thing I get is
rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_INTERRUPT}, {SIG_DFL, [],
SA_RESETHAND}, 8) = 0. I'm running the httpd under gdb to get more readable
detail when segfaults again. And I'll post the result here.

Any ideas?


The machine is a HP Proliant DL 320 G5 with Intel Xeon X3320 and 2GB Ram
with Centos 5 i386.
PHP 5.2.5 with Xcache
Mysql 5.0.45 (php-mysql api versions match)
Apache 2.2.3

# httpd -V
Server version: Apache/2.2.3
Server built:   Jul 14 2009 06:04:04
Server's Module Magic Number: 20051115:3
Server loaded:  APR 1.2.7, APR-Util 1.2.7
Compiled using: APR 1.2.7, APR-Util 1.2.7
Architecture:   32-bit
Server MPM:     Prefork
  threaded:     no
    forked:     yes (variable process count)
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/prefork"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT="/etc/httpd"
 -D SUEXEC_BIN="/usr/sbin/suexec"
 -D DEFAULT_PIDLOG="logs/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_LOCKFILE="logs/accept.lock"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"

Loaded modules are http://pastebin.ca/1562241
-- 
Rodrigo Aliste P.

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Hi<br>
<br>
I know this is no a support forum, but I&#39;m having troubles with Apache =
and I don&#39;t know what could it be!<br>
<br>

The problem is that sometimes the Httpd child pids start to segfault
without any reason, memory is good, cpu is good, is all good!<br>
I&#39;ve stacktraced a segfault and it shows me nothing. The only thing I
get is rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_INTERRUPT}, {SIG_DFL, [],
SA_RESETHAND}, 8) =3D 0. I&#39;m running the httpd under gdb to get more
readable detail when segfaults again. And I&#39;ll post the result here.<br=
>
<br>
Any ideas?<br><br><br>The machine is a HP Proliant DL 320 G5 with Intel Xeo=
n X3320 and 2GB Ram with Centos 5 i386.<br>

PHP 5.2.5 with Xcache<br>

Mysql 5.0.45 (php-mysql api versions match)<br>

Apache 2.2.3<br><br># httpd -V<br>Server version: Apache/2.2.3<br>Server bu=
ilt:=A0=A0 Jul 14 2009 06:04:04<br>Server&#39;s Module Magic Number: 200511=
15:3<br>Server loaded:=A0 APR 1.2.7, APR-Util 1.2.7<br>Compiled using: APR =
1.2.7, APR-Util 1.2.7<br>

Architecture:=A0=A0 32-bit<br>Server MPM:=A0=A0=A0=A0 Prefork<br>=A0 thread=
ed:=A0=A0=A0=A0 no<br>=A0=A0=A0 forked:=A0=A0=A0=A0 yes (variable process c=
ount)<br>Server compiled with....<br>=A0-D APACHE_MPM_DIR=3D&quot;server/mp=
m/prefork&quot;<br>=A0-D APR_HAS_SENDFILE<br>

=A0-D APR_HAS_MMAP<br>=A0-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)<b=
r>=A0-D APR_USE_SYSVSEM_SERIALIZE<br>=A0-D APR_USE_PTHREAD_SERIALIZE<br>=A0=
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT<br>=A0-D APR_HAS_OTHER_CHILD<br>=A0-D =
AP_HAVE_RELIABLE_PIPED_LOGS<br>

=A0-D DYNAMIC_MODULE_LIMIT=3D128<br>=A0-D HTTPD_ROOT=3D&quot;/etc/httpd&quo=
t;<br>=A0-D SUEXEC_BIN=3D&quot;/usr/sbin/suexec&quot;<br>=A0-D DEFAULT_PIDL=
OG=3D&quot;logs/httpd.pid&quot;<br>=A0-D DEFAULT_SCOREBOARD=3D&quot;logs/ap=
ache_runtime_status&quot;<br>

=A0-D DEFAULT_LOCKFILE=3D&quot;logs/accept.lock&quot;<br>=A0-D DEFAULT_ERRO=
RLOG=3D&quot;logs/error_log&quot;<br>=A0-D AP_TYPES_CONFIG_FILE=3D&quot;con=
f/mime.types&quot;<br>=A0-D SERVER_CONFIG_FILE=3D&quot;conf/httpd.conf&quot=
;<br>
<br>Loaded modules are <a href=3D"http://pastebin.ca/1562241">http://pasteb=
in.ca/1562241</a><br>
-- <br>Rodrigo Aliste P.<br clear=3D"all"><br>

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