Last modified: 2014-11-11 10:54:31 UTC
[25-May-2013 11:48:27] Fatal error: Call to a member function pauseUsageTimer() on a non-object at /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaCommon/LuaCommon.php on line 405 Server: mw1029 Method: GET URL: http://meta.wikimedia.org/wiki/User:Yerpo Backtrace: #0 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaCommon/LuaCommon.php(405): Scribunto_LuaEngine::getExpandedArgument() #1 [internal function]: Scribunto_LuaEngine->getExpandedArgument('parent', 'group2') #2 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaSandbox/Engine.php(237): call_user_func_array(Array, Array) #3 [internal function]: Scribunto_LuaSandboxCallback->__call('getExpandedArgu...', Array) #4 [internal function]: Scribunto_LuaSandboxCallback->getExpandedArgument('parent', 'group2') #5 [internal function]: LuaSandboxFunction->call(Object(LuaSandboxFunction)) #6 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaSandbox/Engine.php(158): call_user_func_array(Array, Array) #7 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaCommon/LuaCommon.php(186): Scribunto_LuaSandboxInterpreter->callFunction(Object(LuaSandboxFunction), Object(LuaSandboxFunction)) #8 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/engines/LuaCommon/LuaCommon.php(643): Scribunto_LuaEngine->executeFunctionChunk(Object(LuaSandboxFunction), Object(PPTemplateFrame_DOM)) #9 /usr/local/apache/common-local/php-1.22wmf4/extensions/Scribunto/common/Hooks.php(108): Scribunto_LuaModule->invoke('navbox', Object(PPTemplateFrame_DOM)) #10 [internal function]: ScribuntoHooks::invokeHook(Object(Parser), Object(PPTemplateFrame_DOM), Array)
https://meta.wikimedia.org/wiki/User:Yerpo?action=edit
Hello Sam, I was investigating your bug and managed to recreate it when emitting your user page. I also tried to narrow down what part of your page was causing the error. However before I completed this it seems I can no longer reproduce the crash. Is this the same for you?
I suspect that the order of events was something like this: * Page calls Module:Navbox, where list1 contains a transclusion of Special:LanguageStats/sl * Scribunto expands the list1 arg, from the loop at lines 347–350. * Something related to the transclusion of Special:LanguageStats/sl manages to somehow corrupt the Scribunto state. Not sure how. But the result is that the engine's interface is some non-object (probably null). * Then when Scribunto tries to expand the next arg (group2 on the next iteration of the loop), it runs into that null interface, and boom. * And then at some point, whatever it was about the data behind Special:LanguageStats/sl that was making it screw up the Scribunto state changed so it doesn't do it anymore. Which makes this extremely difficult to reproduce and debug. Ugh.
Quite a few of these currently happening on wmf14
I've confirmed that it's Special:LanguageStats/sl: I created a module on meta that just returns the values of two parameters, and if I passed {{Special:LanguageStats/sl}} for the first one then this error occurred. Again, the error stopped occurring after a short time. I also noted that page title on page preview of a page containing only {{Special:LanguageStats/sl}} (no Scribunto invocation at all) was being reported as "MediaWiki:Centralnotice-template-B13 0822 form newspacing left dr enYY" instead of "User:Anomie/Sandbox2" while the bug was occurring. Other than the corrupt title, I also note the following differences between the output when the bug was occurring and when it wasn't: * Group rows (the ones with [expand]/[collapse]) have "..." in the value columns instead of actual numbers. A number of the value rows do too, although the row for "MediaWiki:Centralnotice-template-B13 0822 form newspacing left dr enYY" is not among these. * A bolded row for "Fundraising 2012" was present, with state "In Progress". There is another "In Progress" (but non-bolded) row in the non-bugged output, however. * A bolded row for "WMF Blog Posts" was present, with empty state. * The total row at the end also has "...".
(In reply to comment #4 by Reedy) > Quite a few of these currently happening on wmf14 Can this still be seen in logs recently?
(In reply to comment #4 by Reedy) > Quite a few of these currently happening on wmf14 Reedy: Can this still be seen in logs recently?
Has anybody seen this in logs recently? Is this still an issue?
