Bug 153648 – [GTK] WebProcess from WebKitGtk+ 2.1x.x terminates with SIGBUS in ArgumentDecoder.cpp

• Status: NEW
• Component: WebKitGTK

[Andres Gomez Garcia]

Created attachment 270203 [details]
BT from gdb

I'm using WebKitGtk+ with my own JHBuild setting:
https://github.com/tanty/jhbuild-epiphany/tree/master

Epiphany 3.18.0 and WebKit 2.10.6

I'm running Epiphany with the dconf key:

"process-model" = "shared-secondary-process"

The compilation was done with CMake args:

'-DPORT=GTK -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS_RELEASE="-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS" -DCMAKE_CXX_FLAGS_RELEASE="-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS"'

When visiting several pages, eventually, WebKitWebProcess hits a SIGBUS and terminates. This doesn't kill epiphany, which is able to span another WebKitWebProcess and continue browsing after reloading the tab.

This bug is not reproducible in a predictable way.

[Andres Gomez Garcia]

I'm reproducing this without much difficulty, but not in a predictable way.

[Andres Gomez Garcia]

Also in 2.10.7

[Andres Gomez Garcia]

Created attachment 271555 [details]
Another similar BT from gdb

[Andres Gomez Garcia]

Created attachment 271556 [details]
Verbose output after applying a debugging patch.

[Andres Gomez Garcia]

Created attachment 271563 [details]
Patch agains 2.10.7 which generated the output of the previous log.

[Andres Gomez Garcia]

Created attachment 283516 [details]
Another similar BT from gdb

Replacing the previous BT, which was mixing 2 different BT in the same file, from this and another bug.

This BT only shows the output for this bug.

[Andres Gomez Garcia]

Created attachment 283517 [details]
BT from gdb with 2.12.3

I think this is the first time I suffer something similar after wiping out my machine and installing a fresh Debian Testing.

Still, the compilation is done with JHBuild with the same settings than used before.