Path: csiph.com!goblin3!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail
From: Robert Elz <kre@munnari.OZ.AU>
Newsgroups: gnu.bash.bug
Subject: Re: Segfault on recursive trap/kill
Date: Sun, 07 Oct 2018 09:42:01 +0700
Lines: 15
Approved: bug-bash@gnu.org
Message-ID: <mailman.1780.1538880224.1284.bug-bash@gnu.org>
References: <874ldy1vka.fsf@gnu.org> <8736tj3llu.fsf@gnu.org> <25389056-9fcf-1d31-36d8-13098769a43a@case.edu>
NNTP-Posting-Host: lists.gnu.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: usenet.stanford.edu 1538880225 5920 208.118.235.17 (7 Oct 2018 02:43:45 GMT)
X-Complaints-To: action@cs.stanford.edu
Cc: Chet Ramey <chet.ramey@case.edu>, bug-bash@gnu.org
To: Mike Gerwitz <mtg@gnu.org>
Envelope-to: bug-bash@gnu.org
In-Reply-To: <874ldy1vka.fsf@gnu.org>
X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized.
X-Received-From: 2001:3c8:9009:181::2
X-BeenThere: bug-bash@gnu.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: Bug reports for the GNU Bourne Again SHell <bug-bash.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-bash/>
List-Post: <mailto:bug-bash@gnu.org>
List-Help: <mailto:bug-bash-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-bash>, <mailto:bug-bash-request@gnu.org?subject=subscribe>
Xref: csiph.com gnu.bash.bug:14692

    Date:        Sat, 06 Oct 2018 19:53:25 -0400
    From:        Mike Gerwitz <mtg@gnu.org>
    Message-ID:  <874ldy1vka.fsf@gnu.org>

  | I haven't inspected the code to see if this is an access
  | violation or if Bash is intentionally signaling SIGSEGV.

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.

kre