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Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 5.13.2
Affects Version/s: 5.13.0, 5.13.1
Component/s: WebEngine
Labels:
- Reported_by_support_standard

Platform/s:

Windows

To reproduce, run simple browser example (debug build) and repeatedly click "Developers" link in qt.io. It seems completely random and may take many tens of clicks to occur.

It shows a dialog that the render process crashed. Pressing Yes to reload the page, crashes the example with this printed to the output:

[21636:22496:0821/103950.169:FATAL:network_context.cc(969)] Check failed: false. 
Backtrace:
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BA1135+838917]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BAEA74+894532]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BAEAAC+894588]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12ADF71E+45806]
	GetHandleVerifier [0x14202169+23269801]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x0F99A2CE+1158526]
	GetHandleVerifier [0x141FB99A+23243226]
	GetHandleVerifier [0x12F068C1+3365121]
	GetHandleVerifier [0x12F05A66+3361446]
	GetHandleVerifier [0x12F0E7C3+3397635]
	GetHandleVerifier [0x12F064AF+3364079]
	GetHandleVerifier [0x12EFCC6C+3325100]
	GetHandleVerifier [0x12EFA4E1+3314977]
	GetHandleVerifier [0x12F0E7C3+3397635]
	GetHandleVerifier [0x12EF3880+3287232]
	GetHandleVerifier [0x12EF4A95+3291861]
	GetHandleVerifier [0x12EF43C7+3290119]
	GetHandleVerifier [0x12EF44D3+3290387]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F83434A+133050]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F834411+133249]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F834578+133608]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F8397A1+154641]
	CertificateErrorController::operator= [0x0F72D17F+127]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10633AEF+14370207]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631A1C+14361804]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631A8C+14361916]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631C3E+14362350]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x1063480E+14373566]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x117B0123+32705491]
	GetHandleVerifier [0x12F1ED5B+3464603]
	GetHandleVerifier [0x12F1EDBC+3464700]
	GetHandleVerifier [0x12F1EE61+3464865]
	GetHandleVerifier [0x12F1FE74+3468980]
	QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x0F7278D5+3045]
	GetHandleVerifier [0x12BE72DA+90906]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB4D33+919811]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB3B08+915160]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB419D+916845]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B7DA91+693857]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B7E869+697401]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB4AB5+919173]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B1F878+308296]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B25BD2+333730]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x11B75B5C+36660748]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x11B75E5E+36661518]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B26653+336419]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12AE622C+73212]
	BaseThreadInitThunk [0x772E8494+36]
	RtlAreBitsSet [0x775641C8+136]
	RtlAreBitsSet [0x77564198+88]

[21636:22496:0821/103950.169:FATAL:network_context.cc(969)] Check failed: false. 
Backtrace:
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BA1135+838917]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BAEA74+894532]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BAEAAC+894588]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12ADF71E+45806]
	GetHandleVerifier [0x14202169+23269801]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x0F99A2CE+1158526]
	GetHandleVerifier [0x141FB99A+23243226]
	GetHandleVerifier [0x12F068C1+3365121]
	GetHandleVerifier [0x12F05A66+3361446]
	GetHandleVerifier [0x12F0E7C3+3397635]
	GetHandleVerifier [0x12F064AF+3364079]
	GetHandleVerifier [0x12EFCC6C+3325100]
	GetHandleVerifier [0x12EFA4E1+3314977]
	GetHandleVerifier [0x12F0E7C3+3397635]
	GetHandleVerifier [0x12EF3880+3287232]
	GetHandleVerifier [0x12EF4A95+3291861]
	GetHandleVerifier [0x12EF43C7+3290119]
	GetHandleVerifier [0x12EF44D3+3290387]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F83434A+133050]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F834411+133249]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F834578+133608]
	QtWebEngineCore::PdfiumDocumentWrapperQt::pageAsQImage [0x0F8397A1+154641]
	CertificateErrorController::operator= [0x0F72D17F+127]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10633AEF+14370207]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631A1C+14361804]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631A8C+14361916]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x10631C3E+14362350]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x1063480E+14373566]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x117B0123+32705491]
	GetHandleVerifier [0x12F1ED5B+3464603]
	GetHandleVerifier [0x12F1EDBC+3464700]
	GetHandleVerifier [0x12F1EE61+3464865]
	GetHandleVerifier [0x12F1FE74+3468980]
	QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x0F7278D5+3045]
	GetHandleVerifier [0x12BE72DA+90906]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB4D33+919811]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB3B08+915160]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB419D+916845]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B7DA91+693857]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B7E869+697401]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12BB4AB5+919173]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B1F878+308296]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B25BD2+333730]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x11B75B5C+36660748]
	QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x11B75E5E+36661518]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12B26653+336419]
	QWebEngineUrlSchemeHandler::qt_static_metacall [0x12AE622C+73212]
	BaseThreadInitThunk [0x772E8494+36]
	RtlAreBitsSet [0x775641C8+136]
	RtlAreBitsSet [0x77564198+88]

10:39:55: The program has unexpectedly finished.
10:39:55: The process was ended forcefully.
10:39:55: C:/Qt/Examples/Qt-5.13.0/webenginewidgets/build-simplebrowser/debug/simplebrowser.exe crashed.

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For Gerrit Dashboard: QTBUG-77764
#	Subject	Branch	Project	Status	CR	V
272295,2	Fix iterating when erasing last element from task queue	73-based	qt/qtwebengine-chromium	Status: MERGED	+2	0

Assignee:: Qt WebEngine Team

Reporter:: Joni Poikelin

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Created:: 22 Aug '19 09:03

Updated:: 02 Oct '19 09:21

Resolved:: 02 Oct '19 09:21

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Fix iterating when erasing last element from task queue: Gerrit Review:

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