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PHP Notice: Undefined index: displaystyle
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Description

Error
labels.normalized_message
[{reqId}] {exception_url}   PHP Notice: Undefined index: displaystyle
error.stack_trace
from /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(960)
#0 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(960): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseMethods.php(68): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseParsing::limits(MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal, array, array, string, integer)
#2 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Literal.php(116): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseMethods::checkAndParse(string, array, array, MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal, boolean)
#3 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/DQ.php(65): MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal->renderMML(array, array)
#4 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\DQ->renderMML(array, array)
#5 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\DQ, array, array)
#6 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#7 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#8 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#9 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#10 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(171): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML()
#11 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseMethods.php(68): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseParsing::amsEqnArray(MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix, array, NULL, string, NULL, NULL, NULL, string, string, string, string)
#12 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(29): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseMethods::checkAndParse(string, array, NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix)
#13 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Matrix.php(66): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->parseToMML(string, array, NULL)
#14 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix->renderMML(array, array)
#15 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix, array, array)
#16 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(61): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#17 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(55): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->renderChildMML(MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#18 [internal function]: MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->MediaWiki\Extension\Math\WikiTexVC\Nodes\{closure}(string, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray)
#19 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(56): array_reduce(array, Closure, string)
#20 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Curly.php(33): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->renderMML(array, array)
#21 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\Curly->renderMML(array, array)
#22 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Curly, array, array)
#23 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(122): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML()
#24 /srv/mediawiki/php-1.42.0-wmf.25/includes/libs/objectcache/wancache/WANObjectCache.php(1726): MediaWiki\Extension\Math\InputCheck\LocalChecker->runCheck(boolean, integer, array, NULL, array)
#25 /srv/mediawiki/php-1.42.0-wmf.25/includes/libs/objectcache/wancache/WANObjectCache.php(1556): WANObjectCache->fetchOrRegenerate(string, integer, array, array, array)
#26 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(61): WANObjectCache->getWithSetCallback(string, integer, array, array)
#27 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(34): MediaWiki\Extension\Math\InputCheck\LocalChecker->run()
#28 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/MathRenderer.php(597): MediaWiki\Extension\Math\InputCheck\LocalChecker->isValid()
#29 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/MathRenderer.php(514): MediaWiki\Extension\Math\MathRenderer->doCheck()
#30 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/HookHandlers/ParserHooksHandler.php(118): MediaWiki\Extension\Math\MathRenderer->checkTeX()
#31 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/HookHandlers/ParserHooksHandler.php(94): MediaWiki\Extension\Math\HookHandlers\ParserHooksHandler->mathPostTagHook(MediaWiki\Extension\Math\MathNativeMML, MediaWiki\Parser\Parser)
#32 [internal function]: MediaWiki\Extension\Math\HookHandlers\ParserHooksHandler->mathTagHook(string, array, MediaWiki\Parser\Parser, PPFrame_Hash)
#33 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(3988): call_user_func_array(array, array)
#34 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/PPFrame_Hash.php(353): MediaWiki\Parser\Parser->extensionSubstitution(array, PPFrame_Hash, boolean)
#35 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(2936): PPFrame_Hash->expand(PPNode_Hash_Tree, integer)
#36 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(1583): MediaWiki\Parser\Parser->replaceVariables(string)
#37 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(691): MediaWiki\Parser\Parser->internalParse(string)
#38 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/WikitextContentHandler.php(376): MediaWiki\Parser\Parser->parse(string, MediaWiki\Title\Title, ParserOptions, boolean, boolean, integer)
#39 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/ContentHandler.php(1664): WikitextContentHandler->fillParserOutput(WikitextContent, MediaWiki\Content\Renderer\ContentParseParams, MediaWiki\Parser\ParserOutput)
#40 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/Renderer/ContentRenderer.php(67): ContentHandler->getParserOutput(WikitextContent, MediaWiki\Content\Renderer\ContentParseParams)
#41 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(260): MediaWiki\Content\Renderer\ContentRenderer->getParserOutput(WikitextContent, MediaWiki\Title\Title, MediaWiki\Revision\RevisionStoreCacheRecord, ParserOptions, boolean)
#42 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(232): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#43 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RevisionRenderer.php(226): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string, array)
#44 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RevisionRenderer.php(164): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, ParserOptions, array)
#45 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#46 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(199): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#47 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolWorkArticleView.php(91): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#48 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolWorkArticleViewCurrent.php(107): MediaWiki\PoolCounter\PoolWorkArticleView->renderRevision()
#49 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolCounterWork.php(171): MediaWiki\PoolCounter\PoolWorkArticleViewCurrent->doWork()
#50 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/ParserOutputAccess.php(328): MediaWiki\PoolCounter\PoolCounterWork->execute()
#51 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/Article.php(761): MediaWiki\Page\ParserOutputAccess->getParserOutput(WikiPage, ParserOptions, MediaWiki\Revision\RevisionStoreCacheRecord, integer)
#52 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/Article.php(563): Article->generateContentOutput(MediaWiki\User\User, ParserOptions, integer, MediaWiki\Output\OutputPage, array)
#53 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ViewAction.php(78): Article->view()
#54 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(733): ViewAction->show()
#55 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(510): MediaWiki\Actions\ActionEntryPoint->performAction(Article, MediaWiki\Title\Title)
#56 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#57 /srv/mediawiki/php-1.42.0-wmf.25/includes/MediaWikiEntryPoint.php(199): MediaWiki\Actions\ActionEntryPoint->execute()
#58 /srv/mediawiki/php-1.42.0-wmf.25/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#59 /srv/mediawiki/w/index.php(3): require(string)
#60 {main}

And

normalized_message
[{reqId}] {exception_url}   PHP Notice: Undefined index: limits
exception.trace
from /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(968)
#0 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(968): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseMethods.php(68): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseParsing::limits(MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal, array, array, string, integer)
#2 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Literal.php(116): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseMethods::checkAndParse(string, array, array, MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal, boolean)
#3 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/DQ.php(65): MediaWiki\Extension\Math\WikiTexVC\Nodes\Literal->renderMML(array, array)
#4 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\DQ->renderMML(array, array)
#5 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\DQ, array, array)
#6 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#7 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#8 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#9 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#10 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseParsing.php(171): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML()
#11 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/MMLmappings/BaseMethods.php(68): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseParsing::amsEqnArray(MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix, array, NULL, string, NULL, NULL, NULL, string, string, string, string)
#12 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(29): MediaWiki\Extension\Math\WikiTexVC\MMLmappings\BaseMethods::checkAndParse(string, array, NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix)
#13 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Matrix.php(66): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->parseToMML(string, array, NULL)
#14 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix->renderMML(array, array)
#15 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Matrix, array, array)
#16 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(61): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML(array, array)
#17 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(55): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->renderChildMML(MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray, array, array)
#18 [internal function]: MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->MediaWiki\Extension\Math\WikiTexVC\Nodes\{closure}(string, MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray)
#19 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexNode.php(56): array_reduce(array, Closure, string)
#20 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/Curly.php(33): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexNode->renderMML(array, array)
#21 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(304): MediaWiki\Extension\Math\WikiTexVC\Nodes\Curly->renderMML(array, array)
#22 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/WikiTexVC/Nodes/TexArray.php(266): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->createMMLwithContext(NULL, MediaWiki\Extension\Math\WikiTexVC\Nodes\Curly, array, array)
#23 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(122): MediaWiki\Extension\Math\WikiTexVC\Nodes\TexArray->renderMML()
#24 /srv/mediawiki/php-1.42.0-wmf.25/includes/libs/objectcache/wancache/WANObjectCache.php(1726): MediaWiki\Extension\Math\InputCheck\LocalChecker->runCheck(boolean, integer, array, NULL, array)
#25 /srv/mediawiki/php-1.42.0-wmf.25/includes/libs/objectcache/wancache/WANObjectCache.php(1556): WANObjectCache->fetchOrRegenerate(string, integer, array, array, array)
#26 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(61): WANObjectCache->getWithSetCallback(string, integer, array, array)
#27 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/InputCheck/LocalChecker.php(34): MediaWiki\Extension\Math\InputCheck\LocalChecker->run()
#28 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/MathRenderer.php(597): MediaWiki\Extension\Math\InputCheck\LocalChecker->isValid()
#29 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/MathRenderer.php(514): MediaWiki\Extension\Math\MathRenderer->doCheck()
#30 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/HookHandlers/ParserHooksHandler.php(118): MediaWiki\Extension\Math\MathRenderer->checkTeX()
#31 /srv/mediawiki/php-1.42.0-wmf.25/extensions/Math/src/HookHandlers/ParserHooksHandler.php(94): MediaWiki\Extension\Math\HookHandlers\ParserHooksHandler->mathPostTagHook(MediaWiki\Extension\Math\MathNativeMML, MediaWiki\Parser\Parser)
#32 [internal function]: MediaWiki\Extension\Math\HookHandlers\ParserHooksHandler->mathTagHook(string, array, MediaWiki\Parser\Parser, PPFrame_Hash)
#33 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(3988): call_user_func_array(array, array)
#34 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/PPFrame_Hash.php(353): MediaWiki\Parser\Parser->extensionSubstitution(array, PPFrame_Hash, boolean)
#35 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(2936): PPFrame_Hash->expand(PPNode_Hash_Tree, integer)
#36 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(1583): MediaWiki\Parser\Parser->replaceVariables(string)
#37 /srv/mediawiki/php-1.42.0-wmf.25/includes/parser/Parser.php(691): MediaWiki\Parser\Parser->internalParse(string)
#38 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/WikitextContentHandler.php(376): MediaWiki\Parser\Parser->parse(string, MediaWiki\Title\Title, ParserOptions, boolean, boolean, integer)
#39 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/ContentHandler.php(1664): WikitextContentHandler->fillParserOutput(WikitextContent, MediaWiki\Content\Renderer\ContentParseParams, MediaWiki\Parser\ParserOutput)
#40 /srv/mediawiki/php-1.42.0-wmf.25/includes/content/Renderer/ContentRenderer.php(67): ContentHandler->getParserOutput(WikitextContent, MediaWiki\Content\Renderer\ContentParseParams)
#41 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(260): MediaWiki\Content\Renderer\ContentRenderer->getParserOutput(WikitextContent, MediaWiki\Title\Title, MediaWiki\Revision\RevisionStoreCacheRecord, ParserOptions, boolean)
#42 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(232): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#43 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RevisionRenderer.php(226): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string, array)
#44 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RevisionRenderer.php(164): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, ParserOptions, array)
#45 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#46 /srv/mediawiki/php-1.42.0-wmf.25/includes/Revision/RenderedRevision.php(199): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#47 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolWorkArticleView.php(91): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#48 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolWorkArticleViewCurrent.php(107): MediaWiki\PoolCounter\PoolWorkArticleView->renderRevision()
#49 /srv/mediawiki/php-1.42.0-wmf.25/includes/poolcounter/PoolCounterWork.php(171): MediaWiki\PoolCounter\PoolWorkArticleViewCurrent->doWork()
#50 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/ParserOutputAccess.php(328): MediaWiki\PoolCounter\PoolCounterWork->execute()
#51 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/Article.php(761): MediaWiki\Page\ParserOutputAccess->getParserOutput(WikiPage, ParserOptions, MediaWiki\Revision\RevisionStoreCacheRecord, integer)
#52 /srv/mediawiki/php-1.42.0-wmf.25/includes/page/Article.php(563): Article->generateContentOutput(MediaWiki\User\User, ParserOptions, integer, MediaWiki\Output\OutputPage, array)
#53 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ViewAction.php(78): Article->view()
#54 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(733): ViewAction->show()
#55 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(510): MediaWiki\Actions\ActionEntryPoint->performAction(Article, MediaWiki\Title\Title)
#56 /srv/mediawiki/php-1.42.0-wmf.25/includes/actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#57 /srv/mediawiki/php-1.42.0-wmf.25/includes/MediaWikiEntryPoint.php(199): MediaWiki\Actions\ActionEntryPoint->execute()
#58 /srv/mediawiki/php-1.42.0-wmf.25/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#59 /srv/mediawiki/w/index.php(3): require(string)
#60 {main}
Impact
Notes

4 hits for each notices, all from a single request made to https://en.wikipedia.org/wiki/Boltzmann_equation

Event Timeline

Minimal example:

<math>\begin{align}
\int\limits_\mathrm{momenta}
\end{align}
</math>

fails error and limits is printed on the screen whereas

<math>
\int\limits_\mathrm{momenta}
</math>

renders fine

The parser splits the align cell between \int and \limits. Thus

<math>\begin{align}
{\int\limits_\mathrm{momenta}}
\end{align}
</math>

renders fine

Change #1019296 had a related patch set uploaded (by Physikerwelt; author: Physikerwelt):

[mediawiki/extensions/Math@master] Clean matrix arguments

https://gerrit.wikimedia.org/r/1019296

Change #1023858 had a related patch set uploaded (by Physikerwelt; author: Physikerwelt):

[mediawiki/extensions/Math@master] Reduce usage of lst2arr helper

https://gerrit.wikimedia.org/r/1023858

Change #1023860 had a related patch set uploaded (by Physikerwelt; author: Physikerwelt):

[mediawiki/extensions/Math@master] Reduce usage of lst2arr helper

https://gerrit.wikimedia.org/r/1023860

Change #1023948 had a related patch set uploaded (by Physikerwelt; author: Physikerwelt):

[mediawiki/extensions/Math@master] Reduce usage of lst2arr in chem context

https://gerrit.wikimedia.org/r/1023948

Change #1023858 merged by jenkins-bot:

[mediawiki/extensions/Math@master] Reduce usage of lst2arr helper

https://gerrit.wikimedia.org/r/1023858

Change #1023860 merged by jenkins-bot:

[mediawiki/extensions/Math@master] Reduce usage of lst2arr helper

https://gerrit.wikimedia.org/r/1023860

Change #1023948 merged by jenkins-bot:

[mediawiki/extensions/Math@master] Reduce usage of lst2arr in chem context

https://gerrit.wikimedia.org/r/1023948

It's a bit complicated as there were few tests, and the parse tree was more complicated than it should be. I imagine the production error does not impact a lot of people, thus I would rather take the time to fix it properly.