The gdb traces are in JS engine code that's unrelated to that changeset. Are you saying that without that changeset you can't reproduce at all and with it you can 100% of the time? If so, can you try removing just the change in qsgen.py from that changeset?
If that's the changeset that causes it this looks more like a compiler bug.
The gdb traces are in JS engine code that's unrelated to that changeset. Are you saying that without that changeset you can't reproduce at all and with it you can 100% of the time? If so, can you try removing just the change in qsgen.py from that changeset?
If that's the changeset that causes it this looks more like a compiler bug.