0000951: when extension is loaded IIS crashed most of the time with 500 http code Error 0xC0000005

ID	Project	Category	View Status	Date Submitted	Last Update

0000951	Xdebug	Uncategorized	public	2013-06-19 12:35	2016-11-29 10:48

Reporter	gamesh	Assigned To	derick
Priority	normal	Severity	crash	Reproducibility	sometimes
Status	resolved	Resolution	unable to reproduce
Platform	PHP 5.2.17	OS	Windows x64	OS Version	Server 2008 R2
Product Version	2.1.3

Summary	0000951: when extension is loaded IIS crashed most of the time with 500 http code Error 0xC0000005
Description	Tried with most recent version 2.2.3, also with 2.1.4 result is the same. The FastCGI process crashes with error 0xC0000005. This only happens when xdebug is loaded, attached crash report backtrace from Microsoft DebugDiag tool hope it helps.
Steps To Reproduce	Just load xdebug extension and hit reload page multiple times and error appears.
Additional Information	xdebug cofniguration: zend_extension=C:\php\ext\php_xdebug.dll xdebug.cli_color=1 xdebug.show_local_vars=1 xdebug.remote_connect_back=1 xdebug.remote_enable=1 xdebug.idekey=netbeans-xdebug PHP Version 5.2.17 VC9 IIS v7.5
Tags	iis, windows
Attached Files	6Thread3952.htm (17,887 bytes) <link rel=STYLESHEET type=text/css href=res/default.css title=default> <!-- Begin Analysis Summary Section --> <table border=0 cellpadding=0 cellspacing=0 class=mycustomContainer> <tr> <td valign=top width=50% style=padding-left:5px; padding-right:5px;> <table border=0 cellpadding=2 cellspacing=2 class=mycustomTable> <tr class=mycustomHeader> <td> <table border=0 cellpadding=2 cellspacing=0 bgcolor=#818181> <tr> <td><img id=Icon_Results src=res/bulletpoint.gif></td> </tr> </table> </td> <td width=100% style=padding-left:5px;> Analysis Summary </td> </tr> <tr id=Table_Results> <td width=15 class=mycustomText> </td> <td class=row> <table border=1 class=mycustomTable> <tr class=mycustomText> <th>Type</th> <th>Description</th> <th>Recommendation</th> </tr> <tr><td class=mycustomText align=center valign=middle nowrap><img border=0 src=res/error.png width=16 height=16>  Error</td><td class=mycustomText><b>WARNING</b> - DebugDiag was not able to locate debug symbols for <b>ntdll.dll</b>, so the information below may be incomplete.<br><br>In php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp the assembly instruction at <b>ntdll!RtlInitUnicodeString+196</b> in <b>C:\Windows\SysWOW64\ntdll.dll</b> from <b>Microsoft Corporation</b> has caused an <b>access violation exception (0xC0000005)</b> when trying to <b>read from</b></b> memory location <b>0x03950d6c</b> on thread <a href='#3856:6Thread3952'><b>0</b></a><br></td><td class=mycustomText>Please follow up with the vendor <b>Microsoft Corporation</b> for <b>C:\Windows\SysWOW64\ntdll.dll</b><br></td></tr> <tr><td class=mycustomText align=center valign=middle nowrap><img border=0 src=res/information.png width=16 height=16>  Information</td><td class=mycustomText>DebugDiag determined that this dump file (php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp) is a crash dump and did not perform any hang analysis. If you wish to enable <b>combined crash and hang analysis</b> for crash dumps, edit the Globals.asp script (located in the DebugDiag\Scripts\inc folder) and set the <b>g_DoCombinedAnalysis</b> constant to <font color='Red'><b>True</b></font>.</td><td class=mycustomText> </td></tr> </table> </td> </tr> </table> </td> </tr> </table> <!-- End Analysis Summary Section --> <br> <!-- Begin Analysis Details Section --> <table border=0 cellpadding=0 cellspacing=0 class=mycustomContainer> <tr> <td valign=top width=50% style=padding-left:5px; padding-right:5px;> <table border=0 cellpadding=2 cellspacing=2 class=mycustomTable> <tr class=mycustomHeader> <td> <table border=0 cellpadding=2 cellspacing=0 bgcolor=#818181> <tr> <td><img id=Icon_Data src=res/bulletpoint.gif></td> </tr> </table> </td> <td width=100% style=padding-left:5px;> Analysis Details </td> </tr> <tr id=Table_Data> <td width=15 class=mycustomText> </td> <td class=row> <b><a onclick='javascript:doToggle();return false;' id=':ScriptOff-t' class='ToggleStartCollapsed' style='cursor: hand;'></a></b> <br><div id=':ScriptOff-s' style='DISPLAY: block'><br> <table border=0 cellpadding=0 cellspacing=0 class=myCustomText width='100%'> <tr> <td width='20px' /> <td> <table cellpadding=5 cellspacing=0 class=myCustomText> <tr> <td> <img src='res/information.png'> </td> <td> <font color='red'><b>Your browser settings are currently prohibiting this report's scripts from running. </b> </font> <br> This is preventing some features of this analysis report from displaying properly. To enable scripts to run, right-click the security warning above and choose "Allow Blocked Content..." or enable the <font color='blue'><b>"Allow active content to run in files on My Computer*"</b></font> setting on the Advanced tab of your "Internet Options" dialog to avoid being prompted in the future </td> </tr> </table> <br> <br> </td> </tr> </table> </div> </P> <P> </P> <script for=window event=onload language='JavaScript'> // initially collapse all 'ToggleStartCollapsed' sections for(i=0; i < document.anchors.length; i++) { var elem = document.anchors[i]; if (elem.className.toUpperCase() == "TOGGLESTARTCOLLAPSED") doToggle2(elem); } // invoke any additional togglers var togglers = (new VBArray(g_Togglers.Items())).toArray(); for (i in togglers) window.execScript(togglers[i] + '();', 'JScript'); </script> <script language="JavaScript"> var g_Togglers = new ActiveXObject("Scripting.Dictionary"); function AddToggler(togglerFunctionName) { g_Togglers.Add(togglerFunctionName, togglerFunctionName); } function doToggle() { var srcElement = window.event.srcElement; doToggle2(srcElement); } function doToggle2(srcElement) { doToggle3(srcElement, false); } function doToggle3(srcElement, expandOnly) { var img, a, div, base if(srcElement == null) return; if (srcElement.className.substr(0, 6).toUpperCase() == "TOGGLE") { try { base = srcElement.id.substr(0, srcElement.id.length - 1); a = document.all(base + "t"); img = document.all(base + "i"); div = document.all(base + "s"); if (div != null) { if (div.style.display == "none") { div.style.display = "block"; if (img != null) { img.src = "res/up.png"; } } else if(expandOnly == false) { div.style.display = "none"; if (img != null) { img.src = "res/down.png"; } } } } catch(Ex){} } } </script> <h4>Table Of Contents</h4><a href='#Dump3856:6-t'><b>php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp</b></a><br>   <a href='#3856:6Thread3952'><b>Faulting Thread</b></a><br>   <a href='#3856:6Module'><b>Faulting Module Information</b></a><br><br><b><a onclick='javascript:doToggle();return false;' id='CrashHangAnalysis:3856:6-t' class='ToggleStartExpanded' style='cursor:hand; '><IMG class='ToggleStartExpanded' align='bottom' src='res/up.png' id='CrashHangAnalysis:3856:6-i'> Report for php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp</a></b><br><div id='CrashHangAnalysis:3856:6-s' style='DISPLAY: block'><br> <table border=0 cellpadding=0 cellspacing=0 class=myCustomText width='100%'><tr><td width='20px'/><td><h1>Report for php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp</h1> <table cellpadding=0 cellspacing=0 border=0 class=myCustomText ID="Table1"> <tr><td>Type of Analysis Performed</td><td>  <b>Crash Analysis</b></td></tr> <tr><td>Machine Name</td><td>  <b>SRVITUVSTEST</b></td></tr> <tr><td>Operating System</td><td>  <b>Windows Server 2008 R2 Service Pack 1</b></td></tr> <tr><td>Number Of Processors</td><td>  <b>2</b></td></tr> <tr><td>Process ID</td><td>  <b>3856</b></td></tr> <tr><td>Process Image</td><td>  <b>C:\php\php-cgi.exe</b></td></tr> <tr><td>System Up-Time</td><td>  <b>21 day(s) 06:11:40</b></td></tr> <tr><td>Process Up-Time</td><td>  <b>00:00:06</b></td></tr> </table> <p class="myCustomText"> <h4><a name='3856:6Thread3952'>Thread 0 - System ID 3952</a></h4> <table border=0 cellpadding=0 cellspacing=0 class=myCustomText><tr><td>Entry point</td><td>  <b>php_cgi!mainCRTStartup</b></td></tr><tr><td>Create time</td><td>  <b>2013.06.19 15:22:31</b></td></tr><tr><td>Time spent in user mode</td><td>  <b>0 Days 0:0:1.406</b></td></tr><tr><td>Time spent in kernel mode</td><td>  <b>0 Days 0:0:0.328</b></td></tr></table><br><br> </p> <b>Full Call Stack</b><br><br> <table border=0 cellpadding=0 cellspacing=0 class=mycustomText> <tr> <th>Function</th> <th>    Arg 1</th> <th>    Arg 2</th> <th>    Arg 3</th> <th>    Arg 4</th> <th>  Source</th> </tr> <tr> <td nowrap>ntdll!ZwRaiseException+12</td> <td nowrap>    <font face = "courier new">01bd8ef8</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00c0513c</font></td> <td nowrap>    <font face = "courier new">01bd8ef0</font></td> <td nowrap>  </td> </tr> <tr> <td nowrap>ntdll!RtlFreeHeap+7e</td> <td nowrap>    <font face = "courier new">00dc0000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">01bd8ef8</font></td> <td nowrap>    <font face = "courier new">92382771</font></td> <td nowrap>  </td> </tr> <tr> <td nowrap>msvcrt!free+39</td> <td nowrap>    <font face = "courier new">01bd8ef8</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">0141ebe0</font></td> <td nowrap>    <font face = "courier new">100e0c84</font></td> <td nowrap>  </td> </tr> <tr> <td nowrap>php5!php_set_error_handling+29</td> <td nowrap>    <font face = "courier new">00000002</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>  main\main.c @ 792 + 3</td> </tr> <tr> <td nowrap>php5!zim_DateTime___construct+24</td> <td nowrap>    <font face = "courier new">00000001</font></td> <td nowrap>    <font face = "courier new">0997e2e0</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">0992cca8</font></td> <td nowrap>  ext\date\php_date.c @ 1802</td> </tr> <tr> <td nowrap>php5!execute_internal+32</td> <td nowrap>    <font face = "courier new">00c0513c</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">01424ba0</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>  Zend\zend_execute.c @ 1376 + 2c</td> </tr> <tr> <td nowrap>php_xdebug!get_module+1b67</td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>    <font face = "courier new">00000000</font></td> <td nowrap>  </td> </tr> </table> <br><br> <BR><BR><h4>Exception Information</h4>NTDLL!RTLINITUNICODESTRING+196<b>WARNING</b> - DebugDiag was not able to locate debug symbols for <b>ntdll.dll</b>, so the information below may be incomplete.<br><br>In php-cgi__PID__3856__Date__06_19_2013__Time_03_22_37PM__172__Second_Chance_Exception_C0000005.dmp the assembly instruction at <b>ntdll!RtlInitUnicodeString+196</b> in <b>C:\Windows\SysWOW64\ntdll.dll</b> from <b>Microsoft Corporation</b> has caused an <b>access violation exception (0xC0000005)</b> when trying to <b>read from</b></b> memory location <b>0x03950d6c</b> on thread <a href='#3856:6Thread3952'><b>0</b></a><br><BR><BR> <table cellpadding=0 cellspacing=0 border=0 class='myCustomText' ID="Table2"> <tr> <td nowrap><h2><a name='3856:6Module'>Module Information</a></h2></td> </tr> <TR> <TD><b>Image Name:</b></TD> <td>C:\Windows\SysWOW64\ntdll.dll</td> <TD>  <b>Symbol Type:</b> </TD> <td>Export</td> </TR> <TR> <TD><b>Base address:</b></TD> <td>0x00905a4d</td> <TD>  <b>Time Stamp:</b> </TD> <td>Thu Nov 17 07:28:47 2011 </td> </TR> <TR> <TD><b>Checksum:</b></TD> <td>0x7a04bd00</td> <TD>  <b>Comments:</b> </TD> <td></td> </TR> <TR> <TD><b>COM DLL:</b></TD> <td>False</td> <TD>  <b>Company Name:</b> </TD> <td>Microsoft Corporation</td> </TR> <TR> <TD><b>ISAPIExtension:</b></TD> <td>False</td> <TD>  <b>File Description:</b> </TD> <td>NT Layer DLL</td> </TR> <TR> <TD><b>ISAPIFilter:</b></TD> <td>False</td> <TD>  <b>File Version:</b> </TD> <td>6.1.7601.17725 (win7sp1_gdr.111116-1503)</td> </TR> <TR> <TD><b>Managed DLL:</b></TD> <td>False</td> <TD>  <b>Internal Name:</b> </TD> <td>ntdll.dll</td> </TR> <TR> <TD><b>VB DLL:</b></TD> <td>False</td> <TD>  <b>Legal Copyright:</b> </TD> <td>� Microsoft Corporation. All rights reserved.</td> </TR> <TR> <TD><b>Loaded Image Name:</b> </TD> <td>ntdll.dll</td> <TD>  <b>Legal Trademarks:</b> </TD> <td></td> </TR> <TR> <TD><b>Mapped Image Name:</b> </TD> <td></td> <TD>  <b>Original filename:</b> </TD> <td>ntdll.dll</td> </TR> <TR> <TD><b>Module name:</b> </TD> <td>ntdll</td> <TD>  <b>Private Build:</b> </TD> <td></td> </TR> <TR> <TD><b>Single Threaded:</b> </TD> <td>False</td> <TD>  <b>Product Name:</b> </TD> <td>Microsoft� Windows� Operating System</td> </TR> <TR> <TD><b>Module Size:</b> </TD> <td><font color=SaddleBrown>1,50 MBytes</font></td> <TD>  <b>Product Version:</b> </TD> <td>6.1.7601.17725</td> </TR> <TR> <TD><b>Symbol File Name:</b> </TD> <td>ntdll.dll</td> <TD>  <b>Special Build:</b> </TD> <td>&</td> </TR> </table> <br><br> </td></tr></table></div> <script language='JavaScript'> AddToggler('doToggleCrashHangAnalysis'); function doToggleCrashHangAnalysis() { } </script> </td> </tr> </table> </td> </tr> </table> <!-- End Analysis Details Section --> <br> <!-- Begin Script Summary Section --> <table border=0 cellpadding=0 cellspacing=0 class=mycustomContainer> <tr> <td valign=top width=50% style=padding-left:5px; padding-right:5px;> <table border=0 cellpadding=2 cellspacing=2 class=mycustomTable> <tr class=mycustomHeader> <td> <table border=0 cellpadding=2 cellspacing=0 bgcolor=#818181> <tr><td><img id=Icon_Summary src=res/bulletpoint.gif></td></tr> </table> </td> <td width=100% style=padding-left:5px;> Script Summary </td> </tr> <tr id=Table_Summary> <td width=15 class=mycustomText> </td> <td class=row> <table border=1 class=mycustomTable cellpadding=1 cellspacing=1> <tr class=mycustomText align=left> <th>Script Name</th> <th>Status</th> <th>Error Code</th> <th>Error Source</th> <th>Error Description</th> <th>Source Line</th> </tr><tr align=left><td class=mycustomText>CrashHangAnalysis.asp</td><td class=mycustomText>Completed</td><td class=mycustomText colspan='4'> </td></tr> </table> </td> </tr> </td> </tr> </table> <!-- End Script Summary Section --> 6Thread3952.htm (17,887 bytes) error-log.txt (2,569 bytes) ------------------------------------------------- Error: ------------------------------------------------- Faulting application name: php-cgi.exe, version: 5.2.17.17, time stamp: 0x4d25fde8 Faulting module name: php5.dll, version: 5.2.17.17, time stamp: 0x4d25fd3b Exception code: 0xc0000005 Fault offset: 0x00013905 Faulting process id: 0x1328 Faulting application start time: 0x01ce92808a16c172 Faulting application path: C:\php\php-cgi.exe Faulting module path: C:\php\php5.dll Report Id: d2211674-fe73-11e2-8e81-00155d1a5c0a ------------------------------------------------- Details: ------------------------------------------------- - System - Provider [ Name] Application Error - EventID 1000 [ Qualifiers] 0 Level 2 Task 100 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2013-08-06T08:40:18.000000000Z EventRecordID 619356 Channel Application Computer srvituvstest.in.telecom.lt Security - EventData php-cgi.exe 5.2.17.17 4d25fde8 php5.dll 5.2.17.17 4d25fd3b c0000005 00013905 1328 01ce92808a16c172 C:\php\php-cgi.exe C:\php\php5.dll d2211674-fe73-11e2-8e81-00155d1a5c0a ----------------------------------------- Error Information: ------------------------------------------------- Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: php-cgi.exe P2: 5.2.17.17 P3: 4d25fde8 P4: php5.dll P5: 5.2.17.17 P6: 4d25fd3b P7: c0000005 P8: 00013905 P9: P10: Attached files: These files may be available here: Analysis symbol: Rechecking for solution: 0 Report Id: d2211674-fe73-11e2-8e81-00155d1a5c0a Report Status: 0 ------------------------------------------------- Details: ------------------------------------------------- - System - Provider [ Name] Windows Error Reporting - EventID 1001 [ Qualifiers] 0 Level 4 Task 0 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2013-08-06T08:40:18.000000000Z EventRecordID 619357 Channel Application Computer srvituvstest.in.telecom.lt Security - EventData 0 APPCRASH Not available 0 php-cgi.exe 5.2.17.17 4d25fde8 php5.dll 5.2.17.17 4d25fd3b c0000005 00013905 0 d2211674-fe73-11e2-8e81-00155d1a5c0a 0 error-log.txt (2,569 bytes)

Operating System	Windows Server 2008 R2 Service Pack 1 x64
PHP Version	5.2.10

najcik 2013-06-24 13:21 reporter ~0002518	Do you run the Non-Thread-Safe version of the PHP and Xdebug as advised on the IIS site ? Are there any errors when you run the php.exe from cmd prompt ?

gamesh 2013-06-25 05:18 reporter ~0002521	xdebug and PHP versions are both NTS. about php.exe from cmd errors, i'll check, but we don't realy use php cli

gamesh 2013-06-25 05:23 reporter ~0002522	php-cli.exe also crashes: Problem signature: Problem Event Name: APPCRASH Application Name: php.exe Application Version: 5.2.17.17 Application Timestamp: 4d25fdfd Fault Module Name: ntdll.dll Fault Module Version: 6.1.7601.17725 Fault Module Timestamp: 4ec49b8f Exception Code: c0000005 Exception Offset: 0002e3be OS Version: 6.1.7601.2.1.0.274.10 Locale ID: 1063 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

najcik 2013-06-28 10:03 reporter ~0002526	Can you provide your php.ini

najcik 2013-06-28 10:05 reporter ~0002527	If you can provide a snippet of PHP code that you try to run would be great. Or does it happen regardless of code you try to run ?

gamesh 2013-06-28 10:14 reporter ~0002528	it happens regardless of code. it just most of the time does crash if xdebug extension is loaded. i don't know what else i can provide for you to easier trace back the problem, if you do please let me know.

gamesh 2013-08-06 08:46 reporter ~0002552	Attached error report form Windows Error Event log

therochworks 2014-05-22 09:30 reporter ~0002841	I have exactly the same issue with apache 2.2 and PHP 5.2.17 on Windows 7 (64Bit). If I start the apache and load the first PHP script (maybe phpinfo()) a fatal error occurs with ntdll.dll error information. I've tried TS with apache PHP module and NTS with FGCI allways the same problem. Only if I use the xdebug version 2.1.2 (VC6) the issue doesn't occur. On all VC9 versions the issue exists!

derick 2016-11-28 21:29 administrator ~0003830	With the latest versions of PHP (7.0) and Xdebug (2.4.x), does this still cause a problem for you?

gamesh 2016-11-29 06:27 reporter ~0003842	it's no longer relevant for me personaly, as we migrated away from IIS and PHP 5.2, to apache with php 5.5

derick 2016-11-29 10:48 administrator ~0003846	Okay, thanks for letting me know. I'll be closing this then. Please don't hesitate to open a new issue if you run into any. I'll promise to answer faster :-/

Date Modified	Username	Field	Change
2013-06-19 12:35	gamesh	New Issue
2013-06-19 12:35	gamesh	File Added: 6Thread3952.htm
2013-06-24 13:21	najcik	Note Added: 0002518
2013-06-25 05:18	gamesh	Note Added: 0002521
2013-06-25 05:23	gamesh	Note Added: 0002522
2013-06-28 10:03	najcik	Note Added: 0002526
2013-06-28 10:05	najcik	Note Added: 0002527
2013-06-28 10:14	gamesh	Note Added: 0002528
2013-08-05 10:34	gamesh	Tag Attached: iis
2013-08-05 10:34	gamesh	Tag Attached: windows
2013-08-06 08:46	gamesh	File Added: error-log.txt
2013-08-06 08:46	gamesh	Note Added: 0002552
2014-05-22 09:30	therochworks	Note Added: 0002841
2016-07-31 12:36	derick	Category	Usage problems => Usage problems (Crashes)
2016-07-31 12:38	derick	Category	Usage problems (Crashes) => Usage problems (Wrong Results)
2016-11-28 21:29	derick	Note Added: 0003830
2016-11-28 21:29	derick	Assigned To	=> derick
2016-11-28 21:29	derick	Status	new => feedback
2016-11-29 06:27	gamesh	Note Added: 0003842
2016-11-29 06:27	gamesh	Status	feedback => assigned
2016-11-29 10:48	derick	Note Added: 0003846
2016-11-29 10:48	derick	Status	assigned => resolved
2016-11-29 10:48	derick	Resolution	open => unable to reproduce
2020-03-12 16:35	derick	Category	Usage problems (Wrong Results) => Variable Display
2020-03-12 16:38	derick	Category	Variable Display => Uncategorized

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