From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Jhair Tocancipa Triana Newsgroups: gmane.emacs.bugs Subject: bug#35259: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sun, 14 Apr 2019 11:07:21 +0200 Message-ID: <874l712bw6.fsf@gmail.com> References: <87pnppwt5l.fsf@gmail.com> <87h8b1tuss.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="244065"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 35259@debbugs.gnu.org, Jhair Tocancipa Triana To: Alex Gramiak Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 14 11:08:16 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hFb7V-0011KP-RR for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Apr 2019 11:08:14 +0200 Original-Received: from localhost ([127.0.0.1]:33201 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hFb7U-0001yk-Kc for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Apr 2019 05:08:12 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:59044) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hFb7O-0001yf-JG for bug-gnu-emacs@gnu.org; Sun, 14 Apr 2019 05:08:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hFb7K-0003UF-Lm for bug-gnu-emacs@gnu.org; Sun, 14 Apr 2019 05:08:06 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46300) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hFb7K-0003Tz-C0 for bug-gnu-emacs@gnu.org; Sun, 14 Apr 2019 05:08:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hFb7J-0001Vb-W8 for bug-gnu-emacs@gnu.org; Sun, 14 Apr 2019 05:08:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Jhair Tocancipa Triana Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 14 Apr 2019 09:08:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 35259 X-GNU-PR-Package: emacs Original-Received: via spool by 35259-submit@debbugs.gnu.org id=B35259.15552328525754 (code B ref 35259); Sun, 14 Apr 2019 09:08:01 +0000 Original-Received: (at 35259) by debbugs.gnu.org; 14 Apr 2019 09:07:32 +0000 Original-Received: from localhost ([127.0.0.1]:59844 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hFb6p-0001Uj-R6 for submit@debbugs.gnu.org; Sun, 14 Apr 2019 05:07:32 -0400 Original-Received: from mail-wm1-f67.google.com ([209.85.128.67]:40317) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hFb6n-0001UW-1l for 35259@debbugs.gnu.org; Sun, 14 Apr 2019 05:07:29 -0400 Original-Received: by mail-wm1-f67.google.com with SMTP id z24so16303817wmi.5 for <35259@debbugs.gnu.org>; Sun, 14 Apr 2019 02:07:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:from:to:cc:subject:references:date:in-reply-to :user-agent:face:mime-version; bh=u/yyuURDsZtVr4140L8g7x2ZlL7xWlJy+F5z2uE4R6c=; b=Apr8yR1lCcbYNorM9SVV9/dn0N82PB8V62jXqOnlzENkpL42+UNQUD9mT87XI/fV5u Cgf455TYZMQxcF6nbTE1Sv6Cqj/0c/Gtgkt8yV/1yj5SiRylnAEOYj3z7BJAHDHjQ0sL xpspnDSNpiEAFUFm/UAg+yC7a5LzSEQ5Jqu31hQI7K0vaFWMgpBGIWnw3WQbn1O53Dpi i2Sw1sejb8+xzhLEBC7U1r+Vcygra1pB2HjqQctg7aU77biym+rSWVnIhIbL0kXhRVEu cy0fcDGPFMWMuUidNLZ3ojiF1+wgE1fR7eT/v1X/LP+I5VKD+KK+yXk27D0SSD7exshB vZtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:from:to:cc:subject:references:date :in-reply-to:user-agent:face:mime-version; bh=u/yyuURDsZtVr4140L8g7x2ZlL7xWlJy+F5z2uE4R6c=; b=ENtlnY246/EB1qkojbYfOiwmOROoLKOl/v+/2hvFRUC4ypyg6sNd68e9/ysl0ma/Du AvEAgaoJO+ulwPKOAd0RQm8WvVuU04Rl4fGJpDbKIZY3hzD7CTfqZ7mdoyK6xs1yYMn2 mDnLRQh6ePK3L9P7/TxYQ4xnyp/vInGU92Slx94elEA6hovU8UlQGMrVFS6eTx3nY73D 2pMdUObhNRnYqVFWVGUTcTaLcyVVCgKkFF9WtBI7oD/uy7fs1SZD7PO7GH2L23fHjlFp ni9UI+zeohH+a/RyEByvz9gaFIVU/CDewSXcZDr0/4SfFtpA7l8bJxwlIGHYJuFTPQej Fe0A== X-Gm-Message-State: APjAAAUClN0pi1AefluamaO5KnNfv4DvtBKz3yBckyTBEBVSVW29HZ2O bHx5asr/7KPjaSE2GwMxHbtFqcjG X-Google-Smtp-Source: APXvYqxDUBdpBb6FfZOMuirpyKykI6AFiSIySbPLXsMsTpdlOx8GbceZ8EBuO2KRHoWyU4CUezPNcQ== X-Received: by 2002:a1c:f413:: with SMTP id z19mr18030337wma.71.1555232843025; Sun, 14 Apr 2019 02:07:23 -0700 (PDT) Original-Received: from DE1-JTOCANCIPA-Ubuntu (HSI-KBW-091-089-222-120.hsi2.kabel-badenwuerttemberg.de. [91.89.222.120]) by smtp.gmail.com with ESMTPSA id z8sm47709292wrh.80.2019.04.14.02.07.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 14 Apr 2019 02:07:22 -0700 (PDT) In-Reply-To: <87h8b1tuss.fsf@gmail.com> (Alex Gramiak's message of "Sat, 13 Apr 2019 16:16:51 -0600") Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAHlBMVEUAP5EAOpAAQZIAQpH7 /vxVkLwIU5gARZAAQZPf6vJYDHwjAAACMUlEQVQ4jXWUTY/aMBCGvSAgvS2qwD72Q2qv9NDCDwiV cutKJCE3toJAbnFR1uZmF0Fm7zHb/NvaEIrphrkkoydjjyfva+RW4Sk/jv2oOOeoepb+DAAk8ctr 4AWMsuaAYva1sEG57Es4Bpn1owvwAmAjAPTOgd/3sCj+AcUBvjj6e4QwCJGcQfkoP1iB9nqxArme eyC5DUAmpwpvOcM2EO1+cQTqTlAbfGamRC8VQue9DSSFrDAgxrR/BT6JfKLBdzAbYom4zLkAKsxq iQYvBjj5Lsj8Yyx1mmYu8h64ecvfqI1b6N69UKe8XSAvNqCz7ak4jieHOF7pdLSfoDFpmN7Rs6KU z8MtTXU6xBFS1MxDpjtF89F86oA5LMYJ+sNNG4O8pTqNj/OgmgrfoAcCr4HDMzTlNWBEexo4rwGn e7QiNwGpAUzWV1B6E+xvb/6DoDrQ0gesObmTZuilbiSOHolKt2aI/Fnl6TCpAG4kaEybpo10owT9 xki1h4jQeGV+1JonB8x5ziuQT5A3Ne3u/CIknHYrgZlf64amfFEqJjkbsEqMPSMf09WTH68hfcu7 1eYbIzju/CS24IDio+C0RPEVkFS0jES1C9ivK5CS5GSDx5ljA9Jvn2ygS8AGYrswxvG0QVbIBmtj tZM5D05znTaGjDGEmZTJxc4hhSFAtwswkHl2sbOrlk/QYTFjdyCxdQEYwmRXB9zHkWtVaBIwAiDY Ivrv9nFLFczai+h8+bh/ATU9Nx41BGS1AAAAAElFTkSuQmCC X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:157615 Archived-At: As suggested, before commit 7308c2edf evaluating x-display-monitor-attributes-list triggers the segfault: ,---- | $ ./emacs -Q --eval "(x-display-monitor-attributes-list)" | ... | /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb)[0x7f880cf3509b] | ./emacs(+0x3f13a)[0x561dbeb0813a] | Segmentation fault (core dumped) `---- With commit 7308c2edf the issue was resolved. Thanks! Alex Gramiak writes: > Jhair Tocancipa Triana writes: > >> Emacs crashes randomly, sometimes when clicking links in eww. The crash >> is not easily reproducible, nevertheless the core dump points to a >> segfault at xfns.c: >> >> a35e06bbe27 (Alexander Gramiak 2019-04-06 5033) mi->name = xstrdup >> (gdk_monitor_get_model (monitor)); >> >> gkd_monitor_get_model is returning NULL in my case causing the segfault >> at xstrdup. >> >> The gkd_monitor_get_model documentation says the function may return >> NULL. >> >> https://developer.gnome.org/gdk3/stable/GdkMonitor.html#gdk-monitor-get-model >> >> Maybe we need to guard against a NULL return value. >> >> Please find attached the bt full gdb output. > > I just pushed commit 7308c2edf which should fix this. Can you confirm? > If you can't easily reproduce it, could you see if it crashed before > when just calling M-: (x-display-monitor-attributes-list)? > > Sorry for the trouble. > > > > -- Key fingerprint = 5917 806E 3A2F 659B BE6A 8DEE 04B5 52D9 BC07 29A4