[Webkit-unassigned] [Bug 169021] New: [GTK] WebProcess from WebKitGtk+ 2.15.90 SIGSEVs in JSC::Heap::markListSet() at Source/JavaScriptCore/heap/HeapInlines.h:241

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=169021

            Bug ID: 169021
           Summary: [GTK] WebProcess from WebKitGtk+ 2.15.90 SIGSEVs in
                    JSC::Heap::markListSet() at
                    Source/JavaScriptCore/heap/HeapInlines.h:241
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: agomez at igalia.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 303050
  --> https://bugs.webkit.org/attachment.cgi?id=303050&action=review
BT from gdb for the WebProcess

Created attachment 303048 [details]
BT from gdb for the WebProcess

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

Epiphany 3.22.6 and WebKit 2.15.90.

However, the rest of the dependencies, but mesa and its dependencies, and evince, are all provided from Debian Testing.

The compilation was done with CMake args:

'-DPORT=GTK -DCMAKE_BUILD_TYPE=Release -DENABLE_MINIBROWSER=ON -DCMAKE_C_FLAGS_RELEASE="-O0 -g -DNDEBUG  -DG_DISABLE_CAST_CHECKS" -DCMAKE_CXX_FLAGS_RELEASE="-O0 -g -DNDEBUG -DG_DISABLE_CAST_CHECKS"'

After visiting several pages, eventually, the WebProcess hits a SIGSEV.

This bug is not reproducible in a predictable way.

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