https://bugzilla.wikimedia.org/show_bug.cgi?id=55435

--- Comment #9 from Chris Steipp <cste...@wikimedia.org> ---
The stack trace is a little different in this case, and they seem to be much
less frequent. Redacted stack trace below.

Also, every trace in the logs today is from zh.wikipedia.org. Coincidence?


[11-Oct-2013 00:00:27] Catchable fatal error: Argument 1 passed to
RequestContext::setTitle() must be an instance of Title, null given, called in
/usr/local/apache/common-local/php-1.22wmf20/extensions/AbuseFilter/AbuseFilter.class.php
on line 901 and defined at
/usr/local/apache/common-local/php-1.22wmf20/includes/context/RequestContext.php
on line 93
Server: mw1185
Method: GET
URL: http://zh.wikipedia.org/wiki/
Cookie: centralauth_User=####; centralauth_Token=##############; forceHTTPS=1
Backtrace:
#0
/usr/local/apache/common-local/php-1.22wmf20/includes/context/RequestContext.php(93):
RequestContext::setTitle()
#1
/usr/local/apache/common-local/php-1.22wmf20/extensions/AbuseFilter/AbuseFilter.class.php(901):
RequestContext->setTitle(NULL)
#2
/usr/local/apache/common-local/php-1.22wmf20/extensions/AbuseFilter/AbuseFilter.hooks.php(373):
AbuseFilter::filterAction(Object(AbuseFilterVariableHolder), Object(Title))
#3
/usr/local/apache/common-local/php-1.22wmf20/extensions/AbuseFilter/AbuseFilter.hooks.php(397):
AbuseFilterHooks::checkNewAccount(Object(User), '', true)
#4 [internal function]: AbuseFilterHooks::onAbortAutoAccount(Object(User), '')
#5 /usr/local/apache/common-local/php-1.22wmf20/includes/Hooks.php(199):
call_user_func_array('AbuseFilterHook...', Array)
#6
/usr/local/apache/common-local/php-1.22wmf20/includes/GlobalFunctions.php(3917):
Hooks::run('AbortAutoAccoun...', Array)
#7
/usr/local/apache/common-local/php-1.22wmf20/extensions/CentralAuth/CentralAuthHooks.php(812):
wfRunHooks('AbortAutoAccoun...', Array)
#8
/usr/local/apache/common-local/php-1.22wmf20/extensions/CentralAuth/CentralAuthHooks.php(552):
CentralAuthHooks::attemptAddUser(Object(User))
#9 [internal function]: CentralAuthHooks::onUserLoadFromSession(Object(User),
NULL)
#10 /usr/local/apache/common-local/php-1.22wmf20/includes/Hooks.php(199):
call_user_func_array('CentralAuthHook...', Array)
#11
/usr/local/apache/common-local/php-1.22wmf20/includes/GlobalFunctions.php(3917):
Hooks::run('UserLoadFromSes...', Array)
#12 /usr/local/apache/common-local/php-1.22wmf20/includes/User.php(935):
wfRunHooks('UserLoadFromSes...', Array)
#13 /usr/local/apache/common-local/php-1.22wmf20/includes/User.php(297):
User->loadFromSession()
#14 /usr/local/apache/common-local/php-1.22wmf20/includes/User.php(4593):
User->load()
#15 /usr/local/apache/common-local/php-1.22wmf20/includes/User.php(2305):
User->loadOptions()
#16
/usr/local/apache/common-local/php-1.22wmf20/includes/context/RequestContext.php(296):
User->getOption('language')
#17 /usr/local/apache/common-local/php-1.22wmf20/includes/StubObject.php(204):
RequestContext->getLanguage()
#18 /usr/local/apache/common-local/php-1.22wmf20/includes/StubObject.php(149):
StubUserLang->_newObject()
#19 /usr/local/apache/common-local/php-1.22wmf20/includes/StubObject.php(98):
StubObject->_unstub('getCode', 5)
#20 /usr/local/apache/common-local/php-1.22wmf20/includes/StubObject.php(197):
StubObject->_call('getCode', Array)
#21 /usr/local/apache/common-local/php-1.22wmf20/includes/Message.php(386):
StubUserLang->__call('getCode', Array)
#22 /usr/local/apache/common-local/php-1.22wmf20/includes/Message.php(386):
StubUserLang->getCode()
#23
/usr/local/apache/common-local/php-1.22wmf20/languages/LanguageConverter.php(581):
Message->inLanguage('zh-hans')
#24 /usr/local/apache/common-local/php-1.22wmf20/languages/Language.php(693):
LanguageConverter->convertNamespace(-2, 'zh-hans')
#25 /usr/local/apache/common-local/php-1.22wmf20/languages/Language.php(716):
Language->getNamespaceAliases()
#26 /usr/local/apache/common-local/php-1.22wmf20/languages/Language.php(741):
Language->getNamespaceIds()
#27 /usr/local/apache/common-local/php-1.22wmf20/includes/Title.php(3190):
Language->getNsIndex('Wikipedia')
#28 /usr/local/apache/common-local/php-1.22wmf20/includes/Title.php(152):
Title->secureAndSplit()
#29 /usr/local/apache/common-local/php-1.22wmf20/includes/Title.php(375):
Title::newFromText('Wikipedia:?????...')
#30 /usr/local/apache/common-local/php-1.22wmf20/includes/Wiki.php(121):
Title::newMainPage()
#31 /usr/local/apache/common-local/php-1.22wmf20/includes/Wiki.php(137):
MediaWiki->parseTitle()
#32 /usr/local/apache/common-local/php-1.22wmf20/includes/Wiki.php(530):
MediaWiki->getTitle()
#33 /usr/local/apache/common-local/php-1.22wmf20/includes/Wiki.php(467):
MediaWiki->main()
#34 /usr/local/apache/common-local/php-1.22wmf20/index.php(49):
MediaWiki->run()
#35 /usr/local/apache/common-local/w/index.php(3):
require('/usr/local/apac...')
#36 {main}

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