Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Workers List List-Post: List-Help: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brasslantern-com.20150623.gappssmtp.com; s=20150623; h=from:message-id:date:in-reply-to:comments:references:to:subject :mime-version; bh=GmmLP6e8ZylGoBUUq1m+Qy99KjYYEarsgb1riyg7N3E=; b=RnsioQpGz2goUB3mrURugwBlSPwbn7uEO1Zn0VEtd8CdvxRcacNuHQ8IckdtPVeLE3 p3TwPVB6xHiI8zkeXsp6pBZe3e2naBi8Sz3OmSVapTIBvrE0B0BMhwivGl8mO/k97BP3 hNu2vns61bmIlqGiHs2hc3v69ebW76U3aQzwV8ZaA5EQ+0YsysoOZS2sKQrb/7vz9/vr hHd6Rf+Ka9y04vgLFTpYtQAM/b4xIm25LT7kVgRFNZ5OjaJYi0WZ+aeO1s60FWtMqq6t dLwQ6xWG5xy7eesHQ3hbx6Lmopd3FaXM29jeP/24ABDffj3a1squJ8mS8lfPgVP5xJPh nIxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:message-id:date:in-reply-to:comments :references:to:subject:mime-version; bh=GmmLP6e8ZylGoBUUq1m+Qy99KjYYEarsgb1riyg7N3E=; b=Rz2w2su96c+WPhJMg3j38mLl1lvo9XieXaypJPP9QvlZ1QOMjntDtZ99KI4xDjeoy5 w5RhR+imck6OhShPRvaBUp/XNaBriW1rUTh8+naVmKDFdELLrs4TW+zoazNwNLP0V8BW Uss9Jm9W14+ZgoRIS6LksJ1jLz+HvhQ0XXWGt4iixdgqKxlwOqrhxAMaIP4Hs9aTvv4V eNARHsPHZ8jJ2LRgVv3f7gWipuEOFzTB5Qd40e/caap/wBezuvt7yuwmjSISjZ65rqeK 9jQYs4XyF+bez51DiRIrq0gUXecpxSl76j4+w/DRUIFKmQNSkfkxkLFxJCSQqufXWUOi 1H1Q== X-Gm-Message-State: AD7BkJLJdUz4fWfCYV1oys1D3/0v05UoUDeT32emLvF51NpPsqewerRL9/mF4M0W2gIggg== X-Received: by 10.98.7.135 with SMTP id 7mr504576pfh.124.1457737245299; Fri, 11 Mar 2016 15:00:45 -0800 (PST) From: Bart Schaefer Message-Id: <160311150056.ZM30997@torch.brasslantern.com> Date: Fri, 11 Mar 2016 15:00:56 -0800 In-Reply-To: <20160311143202.4008e29b@pwslap01u.europe.root.pri> Comments: In reply to Peter Stephenson "Re: segfault in completion for configure" (Mar 11, 2:32pm) References: <20160311134729.GA32476@cventin.lip.ens-lyon.fr> <20160311143202.4008e29b@pwslap01u.europe.root.pri> X-Mailer: OpenZMail Classic (0.9.2 24April2005) To: zsh-workers@zsh.org Subject: Re: segfault in completion for configure MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Seq: zsh-workers 38136 On Mar 11, 2:32pm, Peter Stephenson wrote: } } On Fri, 11 Mar 2016 14:47:29 +0100 } Vincent Lefevre wrote: } > With zsh 5.2 under Debian/unstable, zsh sometimes crashes when } > I do: } > } > cventin:~/software/mutt/mutt> ./configure --[TAB] } } Looks like something's already gone wrong by this point Yes, this is the kind of crash where the stack trace is probably not very helpful, because frames have returned and/or new frames entered an unknown number of times after the pointers went awry but before the bad dereference that trips the fault. Shot in the [mostly] dark: I see TRAPCHLD embedded in one of the strings in your backtrace. Completion after "configure --" forks at least one child process (says valgrind) so if you have a TRAPCHLD function it's possible that it's corrupting something. We do attempt signal handling during pattern matching in order that deep recursive globs can be stopped with SIGINT; it could be that needs a bit more regulation.