Bug#443068: xserver-xorg: crash in FontFileCompleteXLFD (backtrace looks broken)

[Julien Cristau]

On Tue, Sep 18, 2007 at 15:41:37 +0200, ingo wrote:

> The backtrace looks certainly wrong.
> 
> If anyone anyone can point out how to do better
> (or how to use gdb to debug x on a single machine)
> i would be willing to help.
> 
The backtrace doesn't look broken to me... Debugging X without a second
machine with ssh access is quite hard, and your bug looks similar to
others already reported, and to upstream bug #12398
, so for now I don't
think there's a need for you to jump through hoops to get a better
backtrace.

Cheers,
Julien



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Bug#443068: xserver-xorg: crash in FontFileCompleteXLFD

[ingo]

On Tue, Sep 18, 2007 at 03:41:37PM +0200, ingo wrote:
> Package: xserver-xorg
> Version: 1:7.3+2
> Severity: important

> since upgrading to 7.3 i got crashes of the xserver with the folling
> backtrace.
> 
> - happen with VESA and ATI (below is the stripped down vesa
>   configuration)
> - xdm runs fine
> - xfce and firefox crash immediately

gimp and workrave also crash immediately

> - ion and dwm run for a while and eventually crash

I was misled, ion and dwn seem to run fine without ever crashing.

xfontsel, gtkfontsel, blender also run fine



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Bug#443068: xserver-xorg: crash in FontFileCompleteXLFD (backtrace looks broken)

[ingo]

Package: xserver-xorg
Version: 1:7.3+2
Severity: important

Hi,

since upgrading to 7.3 i got crashes of the xserver with the folling
backtrace.

- happen with VESA and ATI (below is the stripped down vesa
  configuration)
- xdm runs fine
- xfce and firefox crash immediately
- ion and dwm run for a while and eventually crash

The backtrace looks certainly wrong.

If anyone anyone can point out how to do better
(or how to use gdb to debug x on a single machine)
i would be willing to help.

regards, ingo



Backtrace:
0: X(xf86SigHandler+0x7e) [0x80c632e]
1: [0xb7fa7420]
2: /usr/lib/libpixman-1.so.0(pixman_image_composite+0x588) [0xb7f094b8]
3: /usr/lib/xorg/modules//libfb.so(fbComposite+0x1ad) [0xb796086d]
4: /usr/lib/xorg/modules//libxaa.so(XAAComposite+0x224) [0xb792aca4]
5: /usr/lib/xorg/modules//libxaa.so [0xb7946526]
6: X [0x816f8e3]
7: X(CompositePicture+0x150) [0x8156c40]
8: X [0x815cc1f]
9: X [0x8159ad5]
10: X [0x814d24e]
11: X(Dispatch+0x2bf) [0x808d00f]
12: X(main+0x48b) [0x807461b]
13: /lib/libc.so.6(__libc_start_main+0xe0) [0xb7d41050]
14: X(FontFileCompleteXLFD+0x205) [0x8073991]

Fatal server error:
Caught signal 4.  Server aborting


-- Package-specific info:
Contents of /var/lib/x11/X.roster:
xserver-xorg

/etc/X11/X target does not match checksum in /var/lib/x11/X.md5sum.

X server symlink status:
lrwxrwxrwx 1 root root 13 Sep 17  2006 /etc/X11/X -> /usr/bin/Xorg
-rwxr-xr-x 1 root root 1669528 Sep 16 20:56 /usr/bin/Xorg

Contents of /var/lib/x11/xorg.conf.roster:
xserver-xorg

VGA-compatible devices on PCI bus:
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 If [Radeon 
9000] (rev 01)

/etc/X11/xorg.conf does not match checksum in /var/lib/x11/xorg.conf.md5sum.

Xorg X server configuration file status:
-rw-r--r-- 1 root root 943 Sep 18 15:27 /etc/X11/xorg.conf

Contents of /etc/X11/xorg.conf:
# /etc/X11/xorg.conf

Section "InputDevice"
Identifier  "AST"
Driver  "kbd"
Option  "CoreKeyboard"
Option  "XkbRules"  "xorg"
Option  "XkbModel"  "pc101"
Option  "XkbLayout" "us,de"
EndSection

Section "InputDevice"
Identifier  "TYPHOON"
Driver  "mouse"
Option  "CorePointer"
Option  "Device""/dev/input/mice"
Option  "Protocol"  "ExplorerPS/2"
#Option "Protocol"  "ImPS/2"
Option  "ZAxisMapping"  "6 7"
Option  "Emulate3Buttons"   "false"
EndSection

Section "Monitor"
Identifier  "YAKUMO"
Option  "DPMS"
HorizSync   31-70
VertRefresh 60-75
EndSection

Section "Device"
Identifier "VESA"
Driver "vesa"
EndSection

Section "Screen"
Identifier  "Default Screen"
Device  "VESA"
Monitor "YAKUMO"
DefaultDepth24
SubSection "Display"
Depth   24
Modes   "1280x1024"
EndSubSection
EndSection

Section "ServerLayout"
Identifier  "Default Layout"
Screen  "Default Screen"
InputDevice "AST"
InputDevice "TYPHOON"
EndSection


Xorg X server log files on system:
-rw-r--r-- 1 root root 59256 Sep 18 15:30 /var/log/Xorg.0.log

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.22.5
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xorg depends on:
ii  debconf [debconf-2.0] 1.5.14 Debian configuration management sy
ii  x11-common1:7.3+2X Window System (X.Org) infrastruc
ii  xbase-clients 1:7.3+2miscellaneous X clients - metapack
ii  xkb-data  1.0~cvs.20070916-1 X Keyboard Extension (XKB) configu
ii  xserver-xorg-core 2:1.4-2X.Org X server -- core server
ii  xserver-xorg-input-kb 1:1.2.2-3  X.Org X server -- keyboard input d
ii  xserver-xorg-input-mo 1:1.2.2-5  X.Org X server -- mouse input driv
ii  xserver-xorg-video-at 1:6.6.193-3X.Org X server -- ATI display driv
ii  xserver-xorg-video-ve 1:1.3.0-4  X.Org X server -- VESA display dri

Versions of packages xserver-xorg recommends:
pn  discover1 | discover   (no description available)
pn  dmidecode  (no description available)
pn  laptop-detect  (no description available)
ii  libgl1-mesa-dri   7.0.1-2A free implementation of the OpenG
pn  xresprobe  (no description available)

-- debconf information excluded



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