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Re: Segfault on recursive trap/kill

From: Mike Gerwitz
Subject: Re: Segfault on recursive trap/kill
Date: Sun, 07 Oct 2018 13:24:14 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

On Sun, Oct 07, 2018 at 09:42:01 +0700, Robert Elz wrote:
> I expect that if you did look, you'd probably find that while
> technically the former, it isn't a reference to some wild pointer,
> but rather simply growing the stack until the OS says "no more"
> and returns a SIGSEGV instead af allocating a new stack page.

That makes sense.  Thanks.

Though, it is an implementation detail that IMO a user of bash shouldn't
have to worry about---if bash instead implemented its interpreter stack
on the heap rather than the same stack as bash itself, a segfault could
have represented an actual bug.

Mike Gerwitz

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