FS#62944 - [qt5-webengine] SEGV after upgrading to 5.12.4

Attached to Project: Arch Linux
Opened by hamelg (hamelg) - Wednesday, 19 June 2019, 18:40 GMT
Last edited by Antonio Rojas (arojas) - Wednesday, 19 June 2019, 20:49 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Antonio Rojas (arojas)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
The plasma widget Web Browser crashes after upgrading qt5-webengine. Reverting to 5.12.3 fixes the issue.

Steps to reproduce:

1. Open the plasma widget Web Browser
2. Browse the url https://tmcfreedata.uricache.com/
3. A blank page is displayed.

You get a core dump :

PID: 2138 (QtWebEngineProc)
UID: 2023 (xxxxxx)
GID: 100 (users)
Signal: 11 (SEGV)
Timestamp: Wed 2019-06-19 20:03:03 CEST (26min ago)
Command Line: /usr/lib/qt/libexec/QtWebEngineProcess --type=renderer --disable-gpu-memory-buffer-video-frames --enable-threaded-compositing --enable-features=AllowContentInitiatedDataUrlNavigations --disable-features=MojoVideoCapture,SurfaceSynchronization,UseModernMediaControls,UseVideoCaptureApiForDevToolsSnapshots --disable-gpu-compositing --service-pipe-token=7217551584085425401 --lang=en-US --webengine-schemes=qrc:sLV --num-raster-threads=4 --enable-main-frame-before-activation --service-request-channel-token=7217551584085425401 --renderer-client-id=2 --shared-files
Executable: /usr/lib/qt/libexec/QtWebEngineProcess
Control Group: /user.slice/user-2000.slice/session-4.scope
Unit: session-4.scope
Slice: user-2000.slice
Session: 4
Owner UID: 2023 (xxxxxx)
Boot ID: d9f511356b9348ff987c7d922aa744f9
Machine ID: 9403add355a408845f8b8e2248308545
Hostname: xxxxxxx
Storage: /var/lib/systemd/coredump/core.QtWebEngineProc.2000.d9f511356b9348ff987c7d922aa744f9.2138.1560967383000000.lz4
Message: Process 2138 (QtWebEngineProc) of user 2000 dumped core.

Stack trace of thread 1:
#0 0x00007f49eb5e307c n/a (libQt5WebEngineCore.so.5)
#1 0x00007f49eb5ed615 n/a (libQt5WebEngineCore.so.5)
#2 0x00007f49eb5ec7c1 n/a (libQt5WebEngineCore.so.5)
#3 0x00007f49eb5ed5d3 n/a (libQt5WebEngineCore.so.5)
...
This task depends upon

Closed by  Antonio Rojas (arojas)
Wednesday, 19 June 2019, 20:49 GMT
Reason for closing:  Upstream
Additional comments about closing:  Fixed in upcoming 5.13, delete cache as a workaround for now
Comment by Antonio Rojas (arojas) - Wednesday, 19 June 2019, 19:11 GMT
This is caused by cache files incompatibility. As a workaround, delete the cache (not sure where is it for the widget)
Comment by hamelg (hamelg) - Wednesday, 19 June 2019, 19:43 GMT
Thanks, you have solved my issue.
I have deleted the folder ~/.cache/plasmashell/QtWebEngine.

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