FF crashes in JS engine due to null-this optimization made by gcc6. Thread 1 "js" received signal SIGSEGV, Segmentation fault. DispatchToTracer<JSObject*> (trc=0x7ffff3c75410, thingp=0x0, name=0x555555dd43dc "parser.object") at /home/komat/CVS/firefox/firefox-45.0.2/firefox-45.0.2/js/src/gc/Marking.cpp:596 596 return DoMarking(static_cast<GCMarker*>(trc), *thingp); (gdb) bt #0 DispatchToTracer<JSObject*> (trc=0x7ffff3c75410, thingp=0x0, name=0x555555dd43dc "parser.object") at /home/komat/CVS/firefox/firefox-45.0.2/firefox-45.0.2/js/src/gc/Marking.cpp:596 #1 0x0000555555cdaa83 in js::TraceRoot<JSObject*> (trc=<optimized out>, thingp=<optimized out>, name=<optimized out>) at /home/komat/CVS/firefox/firefox-45.0.2/firefox-45.0.2/js/src/gc/Marking.cpp:432 #2 0x0000555555ca8a46 in js::frontend::ObjectBox::trace (this=<optimized out>, trc=trc@entry=0x7ffff3c75410) at /home/komat/CVS/firefox/firefox-45.0.2/firefox-45.0.2/js/src/frontend/ParseNode.cpp:1170
firefox-45.0.2-2.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-cebfb38250
firefox-45.0.2-2.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-cebfb38250
Proposing as a Beta freeze exception. Note this is a kind of proxy for many "Firefox crashes occasionally" bugs filed by various people for F24, many/all of which should be fixed by this update. I filed one of them, and Firefox does seem to have been less crash-y since this update came along. Others explicitly mentioned in the update are https://bugzilla.redhat.com/show_bug.cgi?id=1327817 and https://bugzilla.redhat.com/show_bug.cgi?id=1324161 . Firefox is, obviously, on most of the desktop live images, and it'd be a good thing if it was as un-crashy as possible in the lives and immediately after install.
+1 FE
The Cabal has spoken, marked accepted. Also, there is no cabal.
firefox-45.0.2-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Has this been fixed upstream? E.g. a -fsanitize=undefined build should catch all such bugs.
Yes, it's fixed upstream already.