Debugging the release binaries in lunar is the only way I can capture
the crash:
Thread 1 "gnome-shell" received signal SIGSEGV, Segmentation fault.
0x00007fd27998d344 in js::gc::Cell::storeBuffer (this=<optimised out>,
this=<optimised out>) at /usr/src/mozjs102-102.9.0-1/js/src/gc/Cell.h:357
357 inline StoreBuffer* Cell::storeBuffer() const { return
chunk()->storeBuffer; }
(gdb) bt
#0 0x00007fd27998d344 in js::gc::Cell::storeBuffer() const
(this=<optimised out>, this=<optimised out>)
at /usr/src/mozjs102-102.9.0-1/js/src/gc/Cell.h:357
#1 js::gc::PostWriteBarrierImpl<JSObject>(void*, JSObject*, JSObject*)
(next=<optimised out>, prev=<optimised out>, cellp=<optimised out>)
at /usr/src/mozjs102-102.9.0-1/js/src/gc/StoreBuffer.h:646
#2 js::gc::PostWriteBarrier<js::SavedFrame>(js::SavedFrame**, js::SavedFrame*,
js::SavedFrame*)
(next=<optimised out>, prev=<optimised out>, vp=<optimised out>)
at /usr/src/mozjs102-102.9.0-1/js/src/gc/StoreBuffer.h:658
#3 js::InternalBarrierMethods<js::SavedFrame*,
void>::postBarrier(js::SavedFrame**, js::SavedFrame*, js::SavedFrame*)
(next=<optimised out>, prev=<optimised out>, vp=0x5647cc6bff20)
at /usr/src/mozjs102-102.9.0-1/js/src/gc/Barrier.h:350
#4 js::InternalBarrierMethods<js::SavedFrame*,
void>::postBarrier(js::SavedFrame**, js::SavedFrame*, js::SavedFrame*)
(vp=0x5647cc6bff20, prev=<optimised out>, next=<optimised out>)
at /usr/src/mozjs102-102.9.0-1/js/src/gc/Barrier.h:349
(gdb) frame 5
No frame at level 5.
(gdb) frame 6
No frame at level 6.
(gdb)
Not sure why I only get 4 frames in gdb.
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Desktop Bugs, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1974293
Title:
gnome-shell crashed on logout with SIGSEGV in
js::gc::Cell::storeBuffer() from
js::gc::PostWriteBarrierImpl<JSObject>()
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