On 1 October 2014 17:02, Leon Stringer <leon.stringer@xxxxxxxxxxxx> wrote: > On 1 October 2014 16:44, Anatol Belski <anatol.php@xxxxxxxxxx> wrote: > >> Hi, >> >> On Wed, October 1, 2014 14:18, Leon Stringer wrote: >> > Hi, >> > >> > >> > I'm running Moodle on a Microsoft Windows Server 2008 R2 64-bit server >> > with Apache and PHP (both 32-bit). >> > >> > >> > I was getting Apache crash regularly (e.g. 10 times an hour) with the >> > following error being logged: >> > >> > Faulting application name: httpd.exe, version: 2.2.17.0, time stamp: >> > 0x4cbbe9e8 >> > Faulting module name: php5ts.dll, version: 5.3.5.0, time stamp: >> 0x4d26013e >> > Exception code: 0xc0000005 >> > Fault offset: 0x0000c699 >> > Faulting process id: 0x335c >> > Faulting application path: C:\Moodle25\server\apache\bin\httpd.exe >> > Faulting module path: C:\Moodle25\server\php\php5ts.dll >> > >> > >> > OK, these versions are pretty old so I upgraded but I'm still getting >> > (presumably) the same error: >> > >> > >> > Faulting application name: httpd.exe, version: 2.4.10.0, time stamp: >> > 0x53c79afa >> > Faulting module name: php5ts.dll, version: 5.5.17.0, time stamp: >> > 0x5418c5a5 >> > Exception code: 0xc0000005 >> > Fault offset: 0x0004b985 >> > Faulting process id: 0xf34 >> > Faulting application path: E:\Server\Apache24\bin\httpd.exe >> > Faulting module path: E:\Server\PHP\php5ts.dll >> > >> > >> > Does anyone have any advice on troubleshooting this? E.g. for getting >> > enough information to log a bug? >> > >> > Moodle is pretty stable, but even if it had a problem I wouldn't expect >> a >> > crash. >> > >> > Thanks in advance, >> > >> > >> > Leon >> > >> what I would like to know yet is - where your PHP and Apache builds >> descend from. >> >> And for the start, please take a look at >> https://bugs.php.net/bugs-generating-backtrace-win32.php . We need a >> backtrace to be able to diagnose the issue. Once you have it, please >> report a bug to bugs.php.net. Ideally were to have some reproduce snippet >> in PHP as well. >> >> Thanks >> >> Anatol >> >> Thanks for your reply. I can answer the first question straight away: > they came from > http://www.apachelounge.com/download/VC11/binaries/httpd-2.4.10-win32-VC11.zip > and > http://windows.php.net/downloads/releases/php-5.5.17-Win32-VC11-x86.zip. > > Thanks for the link, I'll see if I can capture a backtrace of the crash. > > Hi, I've tried to get a backtrace. It's a live server so there are a lot of Apache threads but hopefully this is the information that's required(?). In the summary is the following message: In httpd__PID__1840__Date__10_03_2014__Time_09_54_39AM__360__Second_Chance_Exception_C0000005.dmp the assembly instruction at php5ts!zend_execute+c5 in E:\Server\PHP\php5ts.dll from The PHP Group has caused an access violation exception (0xC0000005) when trying to write to memory location 0x00000001 on thread 60 For thread 60 the following is listed: Entry point libhttpd!ap_regkey_value_set+1bf0 Create time 03/10/2014 09:54:21 Time spent in user mode 0 Days 00:00:00.811 Time spent in kernel mode 0 Days 00:00:00.296 This thread is not fully resolved and may or may not be a problem. Further analysis of these threads may be required. Function Source php5ts!zend_execute+c5 [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_vm_execute.h @ 388 + a4] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_vm_execute.h @ 388 + a4 php5ts!zend_execute_scripts+14a [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend.c @ 1331] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend.c @ 1331 php5apache2_4!php_handler+2e7f [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 669 + e] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 669 + e msvcr110!_tolower_l+13 libapr_1!apr_pstrcat+86 msvcr110!__crtFlsGetValue+15 msvcr110!_getptd_noexit+6a 0x06dd71c0 php5apache2_4!php_handler+1c1 [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a kernel32!BaseThreadInitThunk+e ntdll!__RtlUserThreadStart+70 ntdll!_RtlUserThreadStart+1b Is this the right information? If so, what next? Thanks in advance, Leon
