Hi I'm trying to debug a persistent error that we've had for a long time, but has now become acute.
We always "use strict" and do extensive testing, but this problem has eluded us so far. Every now and again (4 or 5 times per day) a process would error with a Windows Error 26 generating a Windows Error Reporting Popup on a terminal server console. The user data and process looks like it has completed without any error at the Perl and DB level: it's only the garbage collection that's showing an error. In the past this wasn't so bad, as the Apache2 process died and could be restarted and no harm was done. Now that the code has been moved from a real to a virtual server (which is allegedly identical but clearly isn't) the httpd.exe process is hanging awaiting user input to confirm the error popup window before terminating. We have searched high and low and tried all sorts of registry hacks. We've also written more watchdog code to regularly fetch pages from the server and if they time out to call taskkill to recycle the process, which although it works, isn't ideal. Question 1) Does anyone have a reliable way of ignoring this Windows popup error and letting the httpd.exe process terminate silently so that our standard process watchdog can restart it? We have also been looking at the output of a crash dump that we triggered manually with MS userdump.exe. We already have symbols files for Apache2, other modiles and mod_perl installed. The error is occurring during a string copy during the general destructor process of mod_perl after our code has successfully completed. Although the Windows error is clearly being triggered by mod_perl, we suspect that the root cause lies much deeper and is probably something to do with win32::OLE and not being thread safe. We can't find any symbols files for perl itself. Question 2) Can anyone tell us how to reliably dump trace information at the perl level so we can trace precisely which perl program (and hopefully which subroutine or method) is triggering the problem? Again we've searched high and low for a perl58.pdb and perl.pdb symbol table for the Activestate Perl build but we cannot find one anywhere. Would this mean we have to recompile our own custom Perl kernel to get this info? If so that would be a real pain,as then we would have altered something on the core system. So can anyone point me at a ready built version of symbol tables (perl58.pdb) for Activestate Perl Win32? If you have any other constructive tips for how to dig into this further, please share. Thanks -- View this message in context: http://old.nabble.com/Help-Debugging-Windows-Server-2003-Win32-%2B-Apache2.2-%2B-mod_perl-%2B-Activestate-Pelr-5.8.8-ErrorID-26-tp32004421p32004421.html Sent from the mod_perl - General mailing list archive at Nabble.com.
