ID: 40545
Updated by: [EMAIL PROTECTED]
Reported By: scottmacvicar at ntlworld dot com
-Status: Open
+Status: Feedback
Bug Type: Reproducible crash
Operating System: RHEL 4
PHP Version: 5.2.1
New Comment:
Ok.
Previous Comments:
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[2007-02-19 18:21:42] scottmacvicar at ntlworld dot com
I've been unable to track it down specifically, its happening across a
larger number of scripts, the only thing I can see in common between
them all is a large number of unserialize calls during the script
startup.
I've compiled PHP into debug mode now and I'll leave it running
overnight to try and obtain a more detailed backtrace.
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[2007-02-19 18:14:06] [EMAIL PROTECTED]
We still need to know how to reproduce it, otherwise it's hardly a
"**Reproducible** crash".
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[2007-02-19 17:53:51] scottmacvicar at ntlworld dot com
Description:
------------
Recently upgraded to PHP 5.2.1 from PHP 5.1.6 and we started to see a
series of crashes every few hundred thousand requests, couldn't isolate
this to a specific section of code so I think its a concurrency
problem.
I managed to catch a core file from the past few and in each case the
backtrace revealed that the problem is zend_strod. This is just an
excerpt the rest of the backtrace are just apache internals.
Thread 27 (process 14353):
#0 0x008b07a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1 0x0013bc46 in kill () from /lib/tls/libc.so.6
No symbol table info available.
#2 0x0807e90d in sig_coredump (sig=14332) at mpm_common.c:1170
No locals.
#3 <signal handler called>
No symbol table info available.
#4 Balloc (k=1953067823) at /www/src/php-5.2.1/Zend/zend_strtod.c:460
x = Variable "x" is not available.
We're seeing this problem on both of our web servers, I can recompile
one of the boxes in debug mode if that would help.
The only change I can see of recent was a reimplementation of the code
to a BSD license.
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