GNU bug report logs - #773
23.0.60; Segfault when opening a file

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Christian Faulhammer" <gentoo <at> faulhammer.org>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.60; Segfault when opening a file
Date: Mon, 25 Aug 2008 17:03:57 +0200 (MEST)

[Message part 1 (text/plain, inline)]

Hi,

when opening the attached TeX file (stripped to the lines that cause the crash), my Emacs segfaults.  Compiled from HEAD this morning 1000 CEST, although I have this problem for two weeks now.

In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)
 of 2008-08-25 on sol
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--prefix=/usr' '--host=i686-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-23' '--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x' '--with-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-freetype' '--with-xft' '--without-libotf' '--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' '--build=i686-pc-linux-gnu' 'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu' 'CFLAGS=-O2 -march=athlon-xp -pipe' 'LDFLAGS=-Wl,--as-needed''

Important settings:
  value of $LC_ALL: de_DE.utf8
  value of $LC_COLLATE: de_DE.utf8
  value of $LC_CTYPE: de_DE.utf8
  value of $LC_MESSAGES: de_DE.utf8
  value of $LC_MONETARY: de_DE.utf8
  value of $LC_NUMERIC: de_DE.utf8
  value of $LC_TIME: de_DE.utf8
  value of $LANG: de_DE.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
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  transient-mark-mode: t

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[segfault-faulhammer.tex (application/octet-stream, attachment)]

Message #10 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: emacs-devel <at> gnu.org
Cc: "Christian Faulhammer" <gentoo <at> faulhammer.org>,
        773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Mon, 25 Aug 2008 11:47:09 -0400

Can anyone reproduce this bug?  I can't.


"Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:

> when opening the attached TeX file (stripped to the lines that cause
> the crash), my Emacs segfaults.  Compiled from HEAD this morning 1000
> CEST, although I have this problem for two weeks now.
>
> In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)

--- segfault-faulhammer.tex begins here ---
 & \textbf{Autor(en)/Künstler} &  \textbf{Titel} & \textbf{ISBN} & \textbf{Preis} (ca.) \\\midrule
--- segfault-faulhammer.tex ends here ---

Message #19 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: "Christian Faulhammer" <gentoo <at> faulhammer.org>
Cc: 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 28 Aug 2008 16:14:56 -0400

> when opening the attached TeX file (stripped to the lines that cause
> the crash), my Emacs segfaults.  Compiled from HEAD this morning 1000
> CEST, although I have this problem for two weeks now.

Could you please provide a precise recipe for reproducing this bug,
beginning with `emacs -Q'?

Message #24 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Fri, 29 Aug 2008 12:03:09 +0200

[Message part 1 (text/plain, inline)]

Hi,

Chong Yidong <cyd <at> stupidchicken.com>:

> > when opening the attached TeX file (stripped to the lines that cause
> > the crash), my Emacs segfaults.  Compiled from HEAD this morning
> > 1000 CEST, although I have this problem for two weeks now.
> 
> Could you please provide a precise recipe for reproducing this bug,
> beginning with `emacs -Q'?

 C-x C-f <filename> -> crash

 That's all.

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[signature.asc (application/pgp-signature, attachment)]

Message #29 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: emacs-devel <at> gnu.org, 773 <at> debbugs.gnu.org, gentoo <at> faulhammer.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 11 Sep 2008 11:14:58 +0900

In article <87bpzh9jwi.fsf <at> cyd.mit.edu>, Chong Yidong <cyd <at> stupidchicken.com> writes:

> Can anyone reproduce this bug?  I can't.
> "Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:

> > when opening the attached TeX file (stripped to the lines that cause
> > the crash), my Emacs segfaults.  Compiled from HEAD this morning 1000
> > CEST, although I have this problem for two weeks now.
> >
> > In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)

> --- segfault-faulhammer.tex begins here ---
>  & \textbf{Autor(en)/K$(D+d(Bnstler} &  \textbf{Titel} & \textbf{ISBN} & \textbf{Preis} (ca.) \\\midrule
> --- segfault-faulhammer.tex ends here ---

I can't reproduce that bug with the latest code.  Can you?

---
Kenichi Handa
handa <at> ni.aist.go.jp

Message #34 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Kenichi Handa <handa <at> m17n.org>
Cc: Chong Yidong <cyd <at> stupidchicken.com>, emacs-devel <at> gnu.org,
        773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Sun, 14 Sep 2008 09:38:52 +0200

[Message part 1 (text/plain, inline)]

Hi,

Kenichi Handa <handa <at> m17n.org>:

> In article <87bpzh9jwi.fsf <at> cyd.mit.edu>, Chong Yidong
> <cyd <at> stupidchicken.com> writes:
> 
> > Can anyone reproduce this bug?  I can't.
> > "Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:
> 
> > > when opening the attached TeX file (stripped to the lines that
> > > cause the crash), my Emacs segfaults.  Compiled from HEAD this
> > > morning 1000 CEST, although I have this problem for two weeks now.
> > >
> > > In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)
> 
> > --- segfault-faulhammer.tex begins here ---
> >  & \textbf{Autor(en)/Künstler} &  \textbf{Titel} & \textbf{ISBN} &
> > \textbf{Preis} (ca.) \\\midrule --- segfault-faulhammer.tex ends
> > here ---
> 
> I can't reproduce that bug with the latest code.  Can you?

 Yes, still.  Maybe it has to do with some Emacs unrelated setting (Xft
or whatever Gtk+ setting), so I still debug to see which files are read
and relevant.  I updated to the latest Gtk+ version (2.12.11), but no
difference.  I will report back.

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[signature.asc (application/pgp-signature, attachment)]

Message #39 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Kenichi Handa <handa <at> m17n.org>
Cc: Chong Yidong <cyd <at> stupidchicken.com>, emacs-devel <at> gnu.org,
        773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Tue, 16 Sep 2008 21:32:30 +0200

[Message part 1 (text/plain, inline)]

Hi,

Kenichi Handa <handa <at> m17n.org>:
> In article <87bpzh9jwi.fsf <at> cyd.mit.edu>, Chong Yidong
> <cyd <at> stupidchicken.com> writes:
> 
> > Can anyone reproduce this bug?  I can't.
> > "Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:
> 
> > > when opening the attached TeX file (stripped to the lines that
> > > cause the crash), my Emacs segfaults.  Compiled from HEAD this
> > > morning 1000 CEST, although I have this problem for two weeks now.
> > >
> > > In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)
> 
> > --- segfault-faulhammer.tex begins here ---
> >  & \textbf{Autor(en)/Künstler} &  \textbf{Titel} & \textbf{ISBN} &
> > \textbf{Preis} (ca.) \\\midrule --- segfault-faulhammer.tex ends
> > here ---
> 
> I can't reproduce that bug with the latest code.  Can you?

 Something new:  When starting with -fn fontset-standard everything is
ok, no segfaults anymore.  Anything more I can do to debug this?  I
already straced for file calls and tried to disable all settings from
Gtk+ or X, but I now suspect Xft, this is also related to my bug 775,
which also disappears with standard fontset.

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[signature.asc (application/pgp-signature, attachment)]

Message #44 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Christian Faulhammer <opfer <at> gentoo.org>
Cc: cyd <at> stupidchicken.com, emacs-devel <at> gnu.org, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Wed, 17 Sep 2008 20:40:56 +0900

In article <20080916213230.2ac6952f <at> terra.solaris>, Christian Faulhammer <opfer <at> gentoo.org> writes:

> [1  <text/plain; ISO-8859-1 (quoted-printable)>]
> Hi,

> Kenichi Handa <handa <at> m17n.org>:
> > In article <87bpzh9jwi.fsf <at> cyd.mit.edu>, Chong Yidong
> > <cyd <at> stupidchicken.com> writes:
> > 
> > > Can anyone reproduce this bug?  I can't.
> > > "Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:
> > 
> > > > when opening the attached TeX file (stripped to the lines that
> > > > cause the crash), my Emacs segfaults.  Compiled from HEAD this
> > > > morning 1000 CEST, although I have this problem for two weeks now.
> > > >
> > > > In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.10)
> > 
> > > --- segfault-faulhammer.tex begins here ---
> > >  & \textbf{Autor(en)/K$(D+d(Bnstler} &  \textbf{Titel} & \textbf{ISBN} &
> > > \textbf{Preis} (ca.) \\\midrule --- segfault-faulhammer.tex ends
> > > here ---
> > 
> > I can't reproduce that bug with the latest code.  Can you?

>  Something new:  When starting with -fn fontset-standard everything is
> ok, no segfaults anymore.  Anything more I can do to debug this?  I
> already straced for file calls and tried to disable all settings from
> Gtk+ or X, but I now suspect Xft, this is also related to my bug 775,
> which also disappears with standard fontset.

Please run Emacs under gdb, and find at which point Emacs
crashes.

---
Kenichi Handa
handa <at> ni.aist.go.jp

Message #49 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Kenichi Handa <handa <at> m17n.org>
Cc: cyd <at> stupidchicken.com, emacs-devel <at> gnu.org, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 18 Sep 2008 19:25:01 +0200

[Message part 1 (text/plain, inline)]

Hi,

Kenichi Handa <handa <at> m17n.org>:

> In article <20080916213230.2ac6952f <at> terra.solaris>, Christian
> Faulhammer <opfer <at> gentoo.org> writes:
> 
> > [1  <text/plain; ISO-8859-1 (quoted-printable)>]
> > Hi,
> 
> > Kenichi Handa <handa <at> m17n.org>:
> > > In article <87bpzh9jwi.fsf <at> cyd.mit.edu>, Chong Yidong
> > > <cyd <at> stupidchicken.com> writes:
> > > 
> > > > Can anyone reproduce this bug?  I can't.
> > > > "Christian Faulhammer" <gentoo <at> faulhammer.org> wrote:
> > > 
> > > > > when opening the attached TeX file (stripped to the lines that
> > > > > cause the crash), my Emacs segfaults.  Compiled from HEAD this
> > > > > morning 1000 CEST, although I have this problem for two weeks
> > > > > now.
> > > > >
> > > > > In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version
> > > > > 2.12.10)
> > > 
> > > > --- segfault-faulhammer.tex begins here ---
> > > >  & \textbf{Autor(en)/Künstler} &  \textbf{Titel} &
> > > > \textbf{ISBN} & \textbf{Preis} (ca.) \\\midrule ---
> > > > segfault-faulhammer.tex ends here ---
> > > 
> > > I can't reproduce that bug with the latest code.  Can you?
> 
> >  Something new:  When starting with -fn fontset-standard everything
> > is ok, no segfaults anymore.  Anything more I can do to debug
> > this?  I already straced for file calls and tried to disable all
> > settings from Gtk+ or X, but I now suspect Xft, this is also
> > related to my bug 775, which also disappears with standard fontset.
> 
> Please run Emacs under gdb, and find at which point Emacs
> crashes.

 I provided a back trace in my original report.  Isn't it enough?

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[signature.asc (application/pgp-signature, attachment)]

Message #54 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Christian Faulhammer <opfer <at> gentoo.org>
Cc: Kenichi Handa <handa <at> m17n.org>, emacs-devel <at> gnu.org,
        773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 18 Sep 2008 15:05:31 -0400

Christian Faulhammer <opfer <at> gentoo.org> writes:

>> Please run Emacs under gdb, and find at which point Emacs
>> crashes.
>
>  I provided a back trace in my original report.  Isn't it enough?

The backtrace you provided looks like it has symbols stripped.  Could
you recompile with CFLAGS="-g", generate a new backtrace, and post it?

Message #59 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Christian Faulhammer <opfer <at> gentoo.org>
Cc: Kenichi Handa <handa <at> m17n.org>, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Tue, 23 Sep 2008 13:25:57 -0400

Christian Faulhammer <opfer <at> gentoo.org> writes:

>> Please run Emacs under gdb, and find at which point Emacs
>> crashes.
>
>  I provided a back trace in my original report.  Isn't it enough?

The backtrace you provided looks like it has symbols stripped.  Could
you recompile with CFLAGS="-g", generate a new backtrace, and post it?

Thanks.

Message #64 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: Kenichi Handa <handa <at> m17n.org>, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Tue, 23 Sep 2008 21:55:13 +0200

[Message part 1 (text/plain, inline)]

Chong Yidong <cyd <at> stupidchicken.com>:

> Christian Faulhammer <opfer <at> gentoo.org> writes:
> 
> >> Please run Emacs under gdb, and find at which point Emacs
> >> crashes.
> >
> >  I provided a back trace in my original report.  Isn't it enough?
> 
> The backtrace you provided looks like it has symbols stripped.  Could
> you recompile with CFLAGS="-g", generate a new backtrace, and post it?

 Here it is.  As my failing system is offline and I seldomly sync the
Emacs sources, I can only provide one for a relatively old check-out
from 14 Sep 2008.

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[backtrace (application/octet-stream, attachment)]

[signature.asc (application/pgp-signature, attachment)]

Message #69 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Christian Faulhammer <opfer <at> gentoo.org>
Cc: Kenichi Handa <handa <at> m17n.org>, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Mon, 29 Sep 2008 13:43:12 -0400

Christian Faulhammer <opfer <at> gentoo.org> writes:

>> The backtrace you provided looks like it has symbols stripped.  Could
>> you recompile with CFLAGS="-g", generate a new backtrace, and post it?
>
>  Here it is.  As my failing system is offline and I seldomly sync the
> Emacs sources, I can only provide one for a relatively old check-out
> from 14 Sep 2008.

Does the following patch stop the segfault?

*** trunk/src/fontset.c.~1.145.~	2008-08-29 11:16:15.000000000 -0400
--- trunk/src/fontset.c	2008-09-29 13:41:32.000000000 -0400
***************
*** 517,525 ****
  {
    Lisp_Object elt, vec, font_group;
    int i;
!   FRAME_PTR f = XFRAME (FONTSET_FRAME (fontset));
    int charset_matched = -1;
  
    font_group = fontset_get_font_group (fontset, fallback ? -1 : c);
    if (! CONSP (font_group))
      return Qnil;
--- 517,530 ----
  {
    Lisp_Object elt, vec, font_group;
    int i;
!   FRAME_PTR f;
    int charset_matched = -1;
  
+   if (NILP (FONTSET_FRAME (fontset)))
+     f = XFRAME (selected_frame);
+   else
+     f = XFRAME (FONTSET_FRAME (fontset));
+ 
    font_group = fontset_get_font_group (fontset, fallback ? -1 : c);
    if (! CONSP (font_group))
      return Qnil;

Message #76 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Faulhammer <opfer <at> gentoo.org>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: Kenichi Handa <handa <at> m17n.org>, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 16 Oct 2008 18:36:09 +0200

[Message part 1 (text/plain, inline)]

Hi,

Chong Yidong <cyd <at> stupidchicken.com>:

> Christian Faulhammer <opfer <at> gentoo.org> writes:
> 
> >> The backtrace you provided looks like it has symbols stripped.
> >> Could you recompile with CFLAGS="-g", generate a new backtrace,
> >> and post it?
> >
> >  Here it is.  As my failing system is offline and I seldomly sync
> > the Emacs sources, I can only provide one for a relatively old
> > check-out from 14 Sep 2008.
> 
> Does the following patch stop the segfault?

 The current HEAD does not show the segfault anymore, though bug 775
still exists, which went away with -fn fontset-standard.  You need an
update there?

V-Li

-- 
Christian Faulhammer, Gentoo Lisp project
<URL:http://www.gentoo.org/proj/en/lisp/>, #gentoo-lisp on FreeNode

<URL:http://www.faulhammer.org/>

[signature.asc (application/pgp-signature, attachment)]

Message #81 received at 773 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Christian Faulhammer <opfer <at> gentoo.org>
Cc: Kenichi Handa <handa <at> m17n.org>, 773 <at> debbugs.gnu.org
Subject: Re: 23.0.60; Segfault when opening a file
Date: Thu, 16 Oct 2008 13:06:08 -0400

Christian Faulhammer <opfer <at> gentoo.org> writes:

> bug 775 still exists, which went away with -fn fontset-standard.  You
> need an update there?

Yes, could you try to investigate please?

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