Edit report at https://bugs.php.net/bug.php?id=55070&edit=1
ID: 55070
User updated by: ricardo dot nuno dot rodrigues at hotmail dot com
Reported by: ricardo dot nuno dot rodrigues at hotmail dot com
Summary: SHMOP not working / crash
-Status: Feedback
+Status: Open
Type: Bug
Package: Semaphore related
Operating System: Windows 7 64bit
PHP Version: 5.3.6
Block user comment: N
Private report: N
New Comment:
with xdedug and PHP 5.4.1 VC9
-----------------------------
Thread 0 - System ID 2204
Entry point httpd+2155
Create time 04-05-2012 23:57:08
Time spent in user mode 0 Days 0:0:1.123
Time spent in kernel mode 0 Days 0:0:0.280
Function Arg 1 Arg 2 Arg 3 Source
ntdll!NtClose+12 00000005 00000005 000cfe20
KERNELBASE!CloseHandle+2d 00000005 025eaa10 025e2098
kernel32!CloseHandleImplementation+3f 00000005 00000002 048a0020
php_xcache+277f 025eaa10 01ea3368 01b269b0
php_xcache+16b95 025e2098 01530500 00000000
php_xcache+16dda 01b269b0 6ec53b4e 609aac01
php5ts!zend_hash_graceful_reverse_destroy+d 00bff858 00405370
00000001
httpd+1c9d 00000003 00901b20 00901d88
httpd+2034 7efde000 000cffd4 76ef9ef2
kernel32!BaseThreadInitThunk+e 7efde000 7e7f92b1 00000000
ntdll!__RtlUserThreadStart+70 00402155 7efde000 00000000
ntdll!_RtlUserThreadStart+1b 00402155 7efde000 00000000
In
httpd__PID__3236__Date__05_04_2012__Time_11_58_55PM__105__Second_Chance_Exceptio
n_C0000008.dmp the assembly instruction at 0x76d312f7 which does not correspond
to any known native module in the process has caused an unknown exception
(0xc0000008) on thread 0
Report for
httpd__PID__2292__Date__05_04_2012__Time_11_58_44PM__616__Second_Chance_Exceptio
n_C0000005.dmp
Report for
httpd__PID__2292__Date__05_04_2012__Time_11_58_44PM__616__Second_Chance_Exceptio
n_C0000005.dmp
Type of Analysis Performed Crash Analysis
Machine Name QUAD
Operating System Unexpected Service Pack 1
Number Of Processors 4
Process ID 2292
Process Image C:\AppServ\Apache2.2\bin\httpd.exe
System Up-Time 1 day(s) 15:55:15
Process Up-Time 00:01:34
Thread 5 - System ID 6928
Entry point msvcr100!_endthreadex+6a
Create time 04-05-2012 23:57:12
Time spent in user mode 0 Days 0:0:0.15
Time spent in kernel mode 0 Days 0:0:0.62
Function Arg 1 Arg 2 Arg 3 Source
msvcr90!memcpy+158 3d57ffb8 00000000 00000004
php_shmop_rsr!get_module+37f 2c709508 3d5620d0 2c709508
php5ts!zval_add_ref+17b5 0e8efe10 0e8efb64 00000000
php5ts!execute+1fd 3d57f458 2c709501 2c709508
php5ts!zend_execute_scripts+119 00000650 00000401 0e8efb80
user32!PostThreadMessageA+e1 0e8eff6c 00000000 56433230
php5ts!php_execute_script+a7 00000000 00000000 00000000
php5ts!zend_hash_quick_add_or_update+66 764d1194 0000026c ffffffff
KERNELBASE!WaitForSingleObjectEx+cb 00000020 609dc7f4 609f2cc6
php5ts!xmlGetGlobalState+11 00a68968 00000000 01755700
libhttpd!ap_regexec+d6 00959690 0174cb47 0e8efe30
mod_rewrite+6387 0174b538 00000000 0174b538
libhttpd!ap_run_handler+25 0174b538 0174b538 0174b538
libhttpd!ap_invoke_handler+a2 00000000 017136e0 0e8efefc
libhttpd!ap_die+26e 0174b538 00000000 00984918
libhttpd!ap_psignature+15b2 017136e0 00000001 017136e0
libhttpd!ap_run_process_connection+25 017136e0 009e9f80 0e8eff44
libhttpd!ap_process_connection+33 017136e0 01713568 00000000
libhttpd!ap_regkey_value_remove+fe7 017136d8 6559efcc 00000000
msvcr100!_endthreadex+3f 00000000 0e8eff94 764d339a
msvcr100!_endthreadex+ce 01660488 0e8effd4 76ef9ef2
kernel32!BaseThreadInitThunk+e 01660488 70fd886c 00000000
ntdll!__RtlUserThreadStart+70 730bc59c 01660488 00000000
ntdll!_RtlUserThreadStart+1b 730bc59c 01660488 00000000
MSVCR90!MEMCPY+158In
httpd__PID__2292__Date__05_04_2012__Time_11_58_44PM__616__Second_Chance_Exceptio
n_C0000005.dmp the assembly instruction at msvcr90!memcpy+158 in
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50
934f2ebcb7eb57\msvcr90.dll from Microsoft Corporation has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000000 on thread 5
Previous Comments:
------------------------------------------------------------------------
[2011-07-08 18:27:10] ka...@php.net
Can you try to disable xdebug and re-generate the backtrace if it still happens?
------------------------------------------------------------------------
[2011-06-29 19:15:04] ricardo dot nuno dot rodrigues at hotmail dot com
I tried on CLI mode and have the following error (in attach complete):
Function Arg 1 Arg 2 Arg 3 Source
msvcr90!memcpy+158 02ed3cd8 00000000 00000004
php_shmop!get_module+37f 00000003 02ed38f8 00000000
php5ts!execute_internal+3a 02f00080 00000001 02eb1bc0
php_xdebug_2_1_1_5_3_vc9!get_module+20bc 02f00080 00000001
00000000
php5ts!execute+1122 02f00080 02eb1b00 02eb1bc0
php5ts!execute+583a 02ed3600 038c2ef0 00000000
php5ts!execute+2e8 00000000 00000000 00000000
More:
Analysis Summary
Type Description Recommendation
Error In php__PID__10980__Date__06_14_2011__Time_10_59_20PM__98__First chance
exception 0XC0000005.dmp the assembly instruction at msvcr90!memcpy+158 in
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll from Microsoft Corporation has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000000 on thread 0
Please follow up with the vendor Microsoft Corporation for
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll
Error In
php__PID__10276__Date__06_14_2011__Time_10_57_54PM__835__Second_Chance_Exception
_C0000005.dmp the assembly instruction at msvcr90!memcpy+158 in
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll from Microsoft Corporation has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000000 on thread 0
Please follow up with the vendor Microsoft Corporation for
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll
Error In
php__PID__10980__Date__06_14_2011__Time_10_59_25PM__862__Second_Chance_Exception
_C0000005.dmp the assembly instruction at msvcr90!memcpy+158 in
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll from Microsoft Corporation has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000000 on thread 0
Please follow up with the vendor Microsoft Corporation for
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll
Error In php__PID__10276__Date__06_14_2011__Time_10_57_48PM__990__First
chance
exception 0XC0000005.dmp the assembly instruction at msvcr90!memcpy+158 in
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll from Microsoft Corporation has caused an access
violation exception (0xC0000005) when trying to read from memory location
0x00000000 on thread 0
Please follow up with the vendor Microsoft Corporation for
C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.5570_none_50
9463cabcb6ef2a\msvcr90.dll
Information DebugDiag determined that this dump file
(php__PID__10980__Date__06_14_2011__Time_10_59_25PM__862__Second_Chance_Exceptio
n_C0000005.dmp) is a crash dump and did not perform any hang analysis. If you
wish to enable combined crash and hang analysis for crash dumps, edit the
CrashHangAnalysis.asp script (located in the DebugDiag\Scripts folder) and set
the g_DoCombinedAnalysis constant to True.
------------------------------------------------------------------------
[2011-06-29 18:42:28] fel...@php.net
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php for *NIX and
http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32
Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.
------------------------------------------------------------------------
[2011-06-29 16:52:56] ricardo dot nuno dot rodrigues at hotmail dot com
Description:
------------
If I make such a intensive read of something saved by shmop, the apache will
crash.
If it was intensive write, the crash is sooner.
This only happens in Win32 (not in Linux)
Test script:
---------------
<?php
$key = 1;
$value = 1000;
$nbr_of_read_tests = 100000;
$shm_id = shmop_open( $key, "c", 0644, strlen($value));
shmop_write ( $shm_id , $value , 0);
shmop_close($shm_id);
for ($i = 1; $i <= $nbr_of_read_tests; $i++) {
$shm_id = shmop_open($key, "a", 0, 0);
shm_size = shmop_size($shm_id);
$returnedValue = shmop_read ( $shm_id , 0 , $shm_size );
shmop_close($shm_id);
}
shmop_delete($shm_id);
shmop_close($shm_id);
?>
Expected result:
----------------
work without any problem.
In Linux it works.
Actual result:
--------------
Crash of Apache
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=55070&edit=1
