In looking at this bug report further, this isn't upstreamable; there's no error messages and no steps identified to reliably reproduce the issue. So without a valid backtrace there is nothing that can be investigated.
Leaving at Incomplete until someone can provide a better backtrace.
Note that to get a backtrace you need to run 'bt full' at the (gdb) prompt. It looks like in the above backtrace this was not done, which is why the backtrace is so incomplete.
In looking at this bug report further, this isn't upstreamable; there's no error messages and no steps identified to reliably reproduce the issue. So without a valid backtrace there is nothing that can be investigated.
Leaving at Incomplete until someone can provide a better backtrace.
Note that to get a backtrace you need to run 'bt full' at the (gdb) prompt. It looks like in the above backtrace this was not done, which is why the backtrace is so incomplete.