[Webkit-unassigned] [Bug 209171] New: Crash on big-endian arches in JSC::VM::VM()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209171

            Bug ID: 209171
           Summary: Crash on big-endian arches in JSC::VM::VM()
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P3
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mike at vee.net

Created attachment 393732

  --> https://bugs.webkit.org/attachment.cgi?id=393732&action=review

gdb bt full

Geary's JS tests are failing on Debian package builds with a runtime crash of the WebProcess, for an assortment of big-endian architectures - at least ppc64 and it has also been seen on s390x. After obtaining a stack, it looks like a WebKit/JSC bug (not sure if WebKitGTK specific), since it is failing when constructing a VM in JSC::VM::VM()

See https://gitlab.gnome.org/GNOME/geary/issues/737 for the downstream bug and details. Back trace is attached.

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