From: pbxanime at gmail dot com
Operating system: Centos 5.8
PHP version: 5.4.13
Package: Streams related
Bug Type: Bug
Bug description:php crashes when wrtiting stream
Description:
------------
I use the latest stable XCache and the latest stable Lighttpd.
I store sessions with memcache:
session.save_handler = memcache
session.save_path =
"unix:///tmp/memcached.socket:0?persistent=1&weight=1&timeout=1&retry_interval=15"
php is compiled with the following, I removed directories, but they are
correctly linked:
./configure \
--disable-fileinfo \
--disable-pdo \
--enable-exif \
--enable-fpm \
--enable-ftp \
--enable-gd-native-ttf \
--enable-libxml \
--enable-mbstring \
--enable-zip \
--prefix= \
--with-apxs2= \
--with-bz2 \
--with-curl= \
--with-freetype-dir= \
--with-gd \
--with-gettext \
--with-imap= \
--with-imap-ssl= \
--with-jpeg-dir= \
--with-png-dir= \
--with-kerberos \
--with-libxml-dir= \
--with-mcrypt= \
--with-mysql= \
--with-mysql-sock= \
--with-mysqli= \
--with-openssl= \
--with-openssl-dir= \
--with-pcre-regex= \
--with-png-dir= \
--with-xpm-dir= \
--with-zlib \
--with-zlib-dir=
Test script:
---------------
I store sessions like this:
IF (!ISSET($_SESSION)) {
SESSION_START();
}
IF($_SESSION['user_session_last_access']+180 < TIME()){
$_SESSION['user_session_last_access'] = TIME();
}
It's nothing special and it works normally.
Actual result:
--------------
I don't know how to dupicate this bug, it just happens randomly every few
to several hours:
FPM Log:
[07-Apr-2013 08:35:05.926454] DEBUG: pid 25374, fpm_got_signal(), line 72:
received SIGCHLD
[07-Apr-2013 08:35:05.926552] WARNING: pid 25374, fpm_children_bury(), line
252: [pool ] child 534 exited on signal 11 (SIGSEGV - core dumped) after
34.242946 seconds from start
[07-Apr-2013 08:35:05.926939] NOTICE: pid 25374, fpm_children_make(), line
421: [pool ] child 575 started
[07-Apr-2013 08:35:05.926980] DEBUG: pid 25374, fpm_event_loop(), line 411:
event module triggered 1 events
Backtrace:
#0 0x08304f47 in _php_stream_write (stream=0x9556b88,
buf=0xb77c5000 "set 0b58f7308927b881bd2d5273f0dc8de7 0 1440
38\r\nuser_session_last_access|i:1365338080;\r\n", count=88)
at /usr/src/php-5.4.13/main/streams/streams.c:1238
1238 if (buf == NULL || count == 0 || stream->ops->write ==
NULL) {
(gdb) bt
#0 0x08304f47 in _php_stream_write (stream=0x9556b88,
buf=0xb77c5000 "set 0b58f7308927b881bd2d5273f0dc8de7 0 1440
38\r\nuser_session_last_access|i:1365338080;\r\n", count=88)
at /usr/src/php-5.4.13/main/streams/streams.c:1238
#1 0x00764506 in ?? ()
#2 0x09556b88 in ?? ()
#3 0xb77c5000 in ?? ()
#4 0x00000058 in ?? ()
#5 0xbfb79f0e in ?? ()
#6 0x00000000 in ?? ()
(gdb) frame 0
#0 0x08304f47 in _php_stream_write (stream=0x9556b88,
buf=0xb77c5000 "set 0b58f7308927b881bd2d5273f0dc8de7 0 1440
38\r\nuser_session_last_access|i:1365338080;\r\n", count=88)
at /usr/src/php-5.4.13/main/streams/streams.c:1238
1238 if (buf == NULL || count == 0 || stream->ops->write ==
NULL) {
Another Backtrace:
#0 _php_stream_write_filtered (stream=0x95564a8, buf=0x96c9100 "",
count=3216473280, flags=0) at
/usr/src/php-5.4.13/main/streams/streams.c:1177
1177 status = filter->fops->filter(stream, filter,
brig_inp, brig_outp,
(gdb) bt
#0 _php_stream_write_filtered (stream=0x95564a8, buf=0x96c9100 "",
count=3216473280, flags=0) at
/usr/src/php-5.4.13/main/streams/streams.c:1177
#1 0x007620bb in ?? ()
#2 0x00000000 in ?? ()
(gdb) frame 0
#0 _php_stream_write_filtered (stream=0x95564a8, buf=0x96c9100 "",
count=3216473280, flags=0) at
/usr/src/php-5.4.13/main/streams/streams.c:1177
1177 status = filter->fops->filter(stream, filter,
brig_inp, brig_outp,
--
Edit bug report at https://bugs.php.net/bug.php?id=64606&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64606&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64606&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64606&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64606&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64606&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64606&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64606&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64606&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64606&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64606&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64606&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64606&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64606&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64606&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64606&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64606&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64606&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64606&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64606&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64606&r=mysqlcfg
