> With this patch zap_process() sets SIGNAL_GROUP_EXIT while sending
> SIGKILL to the thread group.
do_coredump has already done this. So you are addressing the case of other
thread groups sharing the mm, right?
> This means that a TASK_TRACED task
>
> 1. Will be awakened by signal_wake_up(1)
That should always happen regardless of signal->flags, so yes.
> 2. Can't sleep again via ptrace_notify()
What makes this be so? What if it's entering a notification event now?
What about exit tracing?
> 3. Can't go to do_signal_stop() after return
> from ptrace_stop() in get_signal_to_deliver()
This is only true because of the check in get_signal_to_deliver,
which I've said I think should be taken out for other reasons.
I guess I'm missing something here.
Thanks,
Roland
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