Date: Sun, 3 Jul 2016 22:20:46 +0200 From: Laurent Bercot <ska-dietlibc@...rnet.org> To: musl@...ts.openwall.com Subject: Re: abort() fails to terminate PID 1 process On 03/07/2016 22:01, Rich Felker wrote: > No. Halting the system safely (which kernel panic does) is completely > different from runaway wrong-code execution, and the only reason we > don't have runaway wrong-code execution right now is because I built > in the for(;;) safety in case termination failed. Halting the system, no matter how safely, is also completely different from cleanly terminating the aborting process (while not impacting other processes as is supposed to be guaranteed by Unix). At this point, we're wildly outside the realm of specification anyway, and I find it acceptable to say that pid 1 abort (or any kind of death for that matter) is UB. Your choice of implementation for abort() is good and safe, but I think it's just QoI, not something you're bound to do by a standard. -- Laurent
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