Edit report at https://bugs.php.net/bug.php?id=52752&edit=1
ID: 52752
Comment by: vc at artstyle dot ru
Reported by: paulgao at yeah dot net
Summary: Program terminated with signal 7, Bus error.
Status: Feedback
Type: Bug
Package: Scripting Engine problem
Operating System: Centos 5 32bit
PHP Version: 5.3SVN-2010-08-31 (SVN)
Block user comment: N
Private report: N
New Comment:
Same here. Apache doesn't matter, I've get this SIGBUS couple times a day. With
APC or xcache different versions,latest - all the same. PHP is stock Debian:
PHP 5.3.3-7+squeeze3 with Suhosin-Patch (cli) (built: Jun 28 2011 13:13:26)
Using fastcgi SAPI with pretty large PHP application (thousands of files).
I'll try to make it reproducible.
# gdb /usr/lib/cgi-bin/php5-fcgi ./3002.php5-fcgi.7.9143
[...]
Program terminated with signal 7, Bus error.
#0 lex_scan (zendlval=0xbfffa2ec) at
/build/buildd-php5_5.3.3-7+squeeze3-i386-H_HNTR/php5-5.3.3/Zend/zend_language_scanner.c:940
940 yych = *YYCURSOR;
(gdb) l
935 0, 0, 0, 0, 0, 0, 0, 0,
936 };
937
938 YYDEBUG(0, *YYCURSOR);
939 YYFILL(8);
940 yych = *YYCURSOR;
941 if (yych != '<') goto yy4;
942 YYDEBUG(2, *YYCURSOR);
943 yyaccept = 0;
944 yych = *(YYMARKER = ++YYCURSOR);
(gdb) p language_scanner_globals.yy_cursor
$1 = (unsigned char *) 0xb77c1000 <Address 0xb77c1000 out of bounds>
(gdb) inf target
Symbols from "/usr/lib/cgi-bin/php5-fcgi".
Local core dump file:
`/var/tmp/./3002.php5-fcgi.7.9143', file type elf32-i386.
[...]
0xb7759000 - 0xb7781000 is load52
0xb77c1000 - 0xb77c1000 is load53
0xb77c2000 - 0xb77c5000 is load54
[...]
Previous Comments:
------------------------------------------------------------------------
[2011-10-31 21:32:30] juraj at lutter dot sk
This same happens on Solaris 10/x86 with PHP 5.3.8 compiled using GCC4 and
using Apache 2.2.21.
root@[nwebs3 /var/crash/nwebs3]# pstack httpd-29691-cust_zend_apache3
core 'httpd-29691-cust_zend_apache3' of 29691: /opt/csw/apache2/sbin/httpd -f
/opt/csw/apache2/etc/httpd.conf -k star
fe0485d4 lex_scan (8046c74, 6c632f61, 746e6569, fe062825, 69762f63, 72656c6c)
+ 60
fe062863 zendlex (8046c70, 8045ae0, 8045690, fe04344b) + 4f
fe043ac2 zendparse (85af794, 2, 40, 2, 81c3ecc, 9) + 69a
fe047cd1 compile_file (8046e00, 8, 2, fe3630c8, 81f399c, 85b1265) + bd
fdd7706c sg_compile_file (8046e00, 8, 55, 0, fe3ae224, 31) + 20
fe0abaac ???????? (8047800, 81c3e12, 8046e98, fe3ae0c0, 88b39c8, 1007800)
fe0945d9 execute (81e10b4, 0, 2, 81c3ba8, 8046ecc, 8046ed4) + 195
fe074111 zend_execute_scripts (8, 0, 3, 0, 8047800, 0) + 129
fe0255af php_execute_script (8047800, 8380c78, 9c, fe0f72a9, fdc20000, 8000) +
1df
fe0f7508 ???????? (8386cd0, 25, 8386fb0, 8387f60)
0807cdce ap_run_handler (8386cd0, 3b, 8047ae8, 807d135, 11e1a300, 0) + 32
0807d19f ap_invoke_handler (8386cd0, 0, 8047b18, 80712de) + af
08087fdd ap_process_request (8386cd0, 4, 8386cd0, 8386cd0) + 18d
0808599d ap_process_http_connection (837cf40, 0, 8047b78, 8082aed) + f1
08082802 ap_run_process_connection (837cf40, 837cca8, 837cc68, 80bcdd8,
fec42c40, 0) + 32
0808c34a child_main (10, 808beb8, 1, 0) + 406
0808c52e make_child (fddc1a5e, feb7667a, fec43c80, 6, 0, fec43c80) + de
0808d0ae ap_mpm_run (80be830, 80ec8e8, 80c0728, 80c0728) + aea
0806c9e4 main (6, 8047e08, 8047e24) + 6f8
0806be7c _start (6, 8047ea8, 8047ec4, 8047ec7, 8047ee7, 8047eea) + 80
------------------------------------------------------------------------
[2011-02-09 12:40:08] paulgao at yeah dot net
core dump:
(gdb) bt
#0 0x082a1ac8 in lex_scan (zendlval=0xbf85525c) at
/root/php-5.3.5/Zend/zend_language_scanner.c:2063
#1 0x082b2df8 in zendlex (zendlval=0xbf855258) at
/root/php-5.3.5/Zend/zend_compile.c:4949
#2 0x0829c0f9 in zendparse () at
/root/php-5.3.5/Zend/zend_language_parser.c:3280
#3 0x082a0f3c in compile_file (file_handle=0xbf855330, type=8) at
/root/php-5.3.5/Zend/zend_language_scanner.c:359
#4 0x082fa1ca in ZEND_INCLUDE_OR_EVAL_SPEC_TMP_HANDLER
(execute_data=0x9fbd1b8) at /root/php-5.3.5/Zend/zend_vm_execute.h:5200
#5 0x082ed7e8 in execute (op_array=0x9f88d68) at
/root/php-5.3.5/Zend/zend_vm_execute.h:107
#6 0x082cb847 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at
/root/php-5.3.5/Zend/zend.c:1194
#7 0x0827ae7e in php_execute_script (primary_file=0xbf859858) at
/root/php-5.3.5/main/main.c:2265
#8 0x08352122 in main (argc=131072, argv=0x640004) at
/root/php-5.3.5/sapi/fpm/fpm/fpm_main.c:1882
------------------------------------------------------------------------
[2011-02-09 12:38:42] paulgao at yeah dot net
<?php
file_put_contents(__DIR__ . '/test.tpl', 'AAA<?php $string = "'.
str_repeat('A', mt_rand(1, 256 * 1024)) .'"; ?>BBB' . "\r\n", LOCK_EX);
require_once __DIR__ . '/test.tpl';
?>
please use âab -n 200 -n 20 http://localhost/test.phpâ to test it.
------------------------------------------------------------------------
[2010-11-24 00:20:11] [email protected]
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.
Please avoid embedding huge scripts into the report.
------------------------------------------------------------------------
[2010-09-09 07:39:16] paulgao at yeah dot net
and, centos 64bit server, same result.
------------------------------------------------------------------------
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