Package: emacs;
Reported by: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
Date: Sat, 13 Apr 2019 20:25:02 UTC
Severity: normal
Merged with 35204
Found in version 27.0.50
Done: Alex Gramiak <agrambot <at> gmail.com>
Bug is archived. No further changes may be made.
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bug-gnu-emacs <at> gnu.org
:bug#35259
; Package emacs
.
(Sat, 13 Apr 2019 20:25:02 GMT) Full text and rfc822 format available.Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
:bug-gnu-emacs <at> gnu.org
.
(Sat, 13 Apr 2019 20:25:02 GMT) Full text and rfc822 format available.Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> To: bug-gnu-emacs <at> gnu.org Subject: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sat, 13 Apr 2019 22:24:06 +0200
[Message part 1 (text/plain, inline)]
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.
[bt-full.log.gz (application/gzip, attachment)]
[Message part 3 (text/plain, inline)]
In GNU Emacs 27.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.4) of 2019-04-13 built on DE1-JT-Ubuntu Repository revision: f9694a713824d402bcba01064ac2f95156bf4161 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12001000 System Description: Ubuntu 18.10 Recent messages: Subscribe newsgroup: nnimap+gmail:[Gmail]/Important nnimap read 0k from imap.gmail.com (initial sync of 1 group; please wait) nnimap read 0k from imap.gmail.com Making completion list... [2 times] delete-backward-char: Text is read-only [2 times] Making completion list... delete-backward-char: Text is read-only Saving file /home/jt/News/drafts/drafts/9... Wrote /home/jt/News/drafts/drafts/9 Deleting article /home/jt/News/drafts/drafts/7 in drafts... Configured using: 'configure --with-xwidgets --with-imagemagick' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS GLIB NOTIFY INOTIFY GNUTLS LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM THREADS XWIDGETS PDUMPER LCMS2 GMP Important settings: value of $LC_ALL: en_US.UTF-8 value of $LC_MONETARY: en_US.UTF-8 value of $LC_NUMERIC: en_US.UTF-8 value of $LC_TIME: en_US.UTF-8 value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Group Minor modes in effect: gnus-topic-mode: t gnus-undo-mode: t shell-dirtrack-mode: t show-paren-mode: t global-anzu-mode: t anzu-mode: t display-time-mode: t desktop-save-mode: t google-this-mode: t popwin-mode: t global-company-mode: t company-mode: t savehist-mode: t tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t 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bug-gnu-emacs <at> gnu.org
:bug#35259
; Package emacs
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(Sat, 13 Apr 2019 22:17:02 GMT) Full text and rfc822 format available.Message #8 received at 35259 <at> debbugs.gnu.org (full text, mbox):
From: Alex Gramiak <agrambot <at> gmail.com> To: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> Cc: 35259 <at> debbugs.gnu.org Subject: Re: bug#35259: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sat, 13 Apr 2019 16:16:51 -0600
Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> 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.
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(Sat, 13 Apr 2019 22:27:02 GMT) Full text and rfc822 format available.Message #11 received at 35259 <at> debbugs.gnu.org (full text, mbox):
From: "Basil L. Contovounesios" <contovob <at> tcd.ie> To: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> Cc: 35259 <at> debbugs.gnu.org Subject: Re: bug#35259: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sat, 13 Apr 2019 23:26:03 +0100
Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> 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. This sounds related to and explains at least part of bug#35204. https://debbugs.gnu.org/35204 -- Basil
bug-gnu-emacs <at> gnu.org
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(Sun, 14 Apr 2019 09:08:01 GMT) Full text and rfc822 format available.Message #14 received at 35259 <at> debbugs.gnu.org (full text, mbox):
From: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> To: Alex Gramiak <agrambot <at> gmail.com> Cc: 35259 <at> debbugs.gnu.org, Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> Subject: Re: bug#35259: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sun, 14 Apr 2019 11:07:21 +0200
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 <agrambot <at> gmail.com> writes: > Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> 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
bug-gnu-emacs <at> gnu.org
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(Sun, 14 Apr 2019 23:36:01 GMT) Full text and rfc822 format available.Message #17 received at 35259 <at> debbugs.gnu.org (full text, mbox):
From: Alex Gramiak <agrambot <at> gmail.com> To: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> Cc: 35259 <at> debbugs.gnu.org Subject: Re: bug#35259: 27.0.50; Segmentation fault (xstrdup gdk_monitor_get_model) Date: Sun, 14 Apr 2019 17:35:22 -0600
merge 35259 35204 close 35259 quit Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com> writes: > 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! Katsumi Yamaoka <yamaoka <at> jpl.org> writes: > On Sun, 14 Apr 2019 02:15:00 +0000, Ken Brown wrote: >>> It should be fixed with commit 7308c2edf, so please test again. Sorry >>> for the inconvenience. > >> Yes, that fixes it for me. > > Emacs built from the fresh git master works fine. Thanks a lot! Thanks for testing.
Alex Gramiak <agrambot <at> gmail.com>
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(Sun, 14 Apr 2019 23:36:02 GMT) Full text and rfc822 format available.Alex Gramiak <agrambot <at> gmail.com>
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(Sun, 14 Apr 2019 23:52:01 GMT) Full text and rfc822 format available.Debbugs Internal Request <help-debbugs <at> gnu.org>
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(Mon, 13 May 2019 11:24:04 GMT) Full text and rfc822 format available.
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