PHP Notice: Undefined property: stdClass::$wt
Closed, ResolvedPublicPRODUCTION ERROR
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	ssastry
	Oct 10 2021, 1:44 PM

Description

Error

mwversion: 1.38.0-wmf.3
reqId: eb611977-ac4d-41ef-acc1-8d41a602c22f
Find reqId in Logstash
Find normalized_message in Logstash

normalized_message

[{reqId}] {exception_url}   PHP Notice: Undefined property: stdClass::$wt

exception.trace

from /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(716)
#0 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(716): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(982): Wikimedia\Parsoid\Html2Wt\WikitextSerializer->serializePart(Wikimedia\Parsoid\Html2Wt\SerializerState, string, Wikimedia\Parsoid\DOM\Compat\Element, string, stdClass, array, NULL, NULL)
#2 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/DOMHandlers/EncapsulatedContentHandler.php(47): Wikimedia\Parsoid\Html2Wt\WikitextSerializer->serializeFromParts(Wikimedia\Parsoid\Html2Wt\SerializerState, Wikimedia\Parsoid\DOM\Compat\Element, array)
#3 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(1254): Wikimedia\Parsoid\Html2Wt\DOMHandlers\EncapsulatedContentHandler->handle(Wikimedia\Parsoid\DOM\Compat\Element, Wikimedia\Parsoid\Html2Wt\SerializerState, boolean)
#4 [internal function]: Wikimedia\Parsoid\Html2Wt\WikitextSerializer->serializeNodeInternal(Wikimedia\Parsoid\DOM\Compat\Element, Wikimedia\Parsoid\Html2Wt\DOMHandlers\EncapsulatedContentHandler)
#5 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(1346): call_user_func(array, Wikimedia\Parsoid\DOM\Compat\Element, Wikimedia\Parsoid\Html2Wt\DOMHandlers\EncapsulatedContentHandler)
#6 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/SerializerState.php(697): Wikimedia\Parsoid\Html2Wt\WikitextSerializer->serializeNode(Wikimedia\Parsoid\DOM\Compat\Element)
#7 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/SerializerState.php(723): Wikimedia\Parsoid\Html2Wt\SerializerState->serializeChildren(Wikimedia\Parsoid\DOM\Compat\Element, NULL)
#8 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(1615): Wikimedia\Parsoid\Html2Wt\SerializerState->kickOffSerialize(Wikimedia\Parsoid\DOM\Compat\Element)
#9 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Core/WikitextContentModelHandler.php(168): Wikimedia\Parsoid\Html2Wt\WikitextSerializer->serializeDOM(Wikimedia\Parsoid\DOM\Compat\Element)
#10 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Parsoid.php(285): Wikimedia\Parsoid\Core\WikitextContentModelHandler->fromDOM(Wikimedia\Parsoid\Config\Env, NULL)
#11 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/extension/src/Rest/Handler/ParsoidHandler.php(827): Wikimedia\Parsoid\Parsoid->dom2wikitext(MWParsoid\Config\PageConfig, Wikimedia\Parsoid\DOM\Compat\Document, array, NULL)
#12 /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/extension/src/Rest/Handler/TransformHandler.php(133): MWParsoid\Rest\Handler\ParsoidHandler->html2wt(MWParsoid\Config\PageConfig, array, string)
#13 /srv/mediawiki/php-1.38.0-wmf.3/includes/Rest/Router.php(403): MWParsoid\Rest\Handler\TransformHandler->execute()
#14 /srv/mediawiki/php-1.38.0-wmf.3/includes/Rest/Router.php(330): MediaWiki\Rest\Router->executeHandler(MWParsoid\Rest\Handler\TransformHandler)
#15 /srv/mediawiki/php-1.38.0-wmf.3/includes/Rest/EntryPoint.php(165): MediaWiki\Rest\Router->execute(MediaWiki\Rest\RequestFromGlobals)
#16 /srv/mediawiki/php-1.38.0-wmf.3/includes/Rest/EntryPoint.php(130): MediaWiki\Rest\EntryPoint->execute()
#17 /srv/mediawiki/php-1.38.0-wmf.3/rest.php(31): MediaWiki\Rest\EntryPoint::main()
#18 /srv/mediawiki/w/rest.php(3): require(string)
#19 {main}

Impact

Notes

Details

Request URL: https://en.wikipedia.org/w/rest.php/en.wikipedia.org/v3/transform/html/to/wikitext/User%3ANardog%2Fsandbox

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	Bump parsoid to 0.15.0-a5	mediawiki/vendor	master	+1 K -1 K
	Deal with more malformed transclusion parts	mediawiki/services/parsoid	master	+26 -21

Customize query in gerrit

Event Timeline

ssastry created this task.Oct 10 2021, 1:44 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 10 2021, 1:44 PM

There are several other errors from this page in logstash.

PHP Notice: Trying to get property 'html' of non-object from /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(769)
PHP Warning: get_object_vars() expects parameter 1 to be object, array given from /srv/mediawiki/php-1.38.0-wmf.3/vendor/wikimedia/parsoid/src/Html2Wt/WikitextSerializer.php(734)
...

So, something else broken on the page might have caused this error as well.

Krinkle moved this task from Untriaged to Oct 2021 on the Wikimedia-production-error board.Oct 13 2021, 6:12 PM

Change 733031 had a related patch set uploaded (by Arlolra; author: Arlolra):

[mediawiki/services/parsoid@master] Deal with more malformed transclusion parts

https://gerrit.wikimedia.org/r/733031

gerritbot added a project: Patch-For-Review.Oct 22 2021, 6:43 PM

Arlolra claimed this task.Oct 22 2021, 6:44 PM

Arlolra triaged this task as Medium priority.

Arlolra moved this task from Needs Triage to Bugs & Crashers on the Parsoid board.

Change 733031 merged by jenkins-bot:

[mediawiki/services/parsoid@master] Deal with more malformed transclusion parts

https://gerrit.wikimedia.org/r/733031