On Sun, Jul 18, 2010 at 01:44:11PM +0100, Anton Shterenlikht wrote:
> I've seen this problem before, but on
> a complex configuration: Xorg running on
> FreeBSD spar64 and connecting via "-query"
> to clients running on FreeBSD ia64.
> 
> Now I get this core dump on a simple amd64
> installation, so I'm trying to provide
> a full report.
> 
> On amd64 -current (r210043) I've
> xorg-server-1.7.5,1
> xf86-video-ati-6.13.0
> xdm-1.1.8_2
> 
> I start X with 
> 
>       ttyv8   "/usr/local/bin/xdm -nodaemon"  xterm   on secure
> 
> in /etc/ttys
> 
> I open ssh -XY connection to a linux server.
> 
> I start an application (Paraview, www.paraview.org).
> 
> When I close the Paraview normally - Xorg dumps core.
> 
> After 1-2 seconds I'm back at the xdm login screen.
> 
> Here's xdm.log
> 
> % cat /val/log/xdm.log
> X.Org X Server 1.7.5
> Release Date: 2010-02-16
> X Protocol Version 11, Revision 0
> Build Operating System: FreeBSD 9.0-CURRENT amd64 
> Current Operating System: FreeBSD mech-aslap239.men.bris.ac.uk 9.0-CURRENT 
> FreeBSD 9.0-CURRENT #0 r210043: Thu Jul 15 12:01:58 BST 2010     
> r...@mech-aslap239.men.bris.ac.uk:/usr/obj/usr/src/sys/BUZI amd64
> Build Date: 16 June 2010  02:51:23PM
>  
> Current version of pixman: 0.16.6
>       Before reporting problems, check http://wiki.x.org
>       to make sure that you have the latest version.
> Markers: (--) probed, (**) from config file, (==) default setting,
>       (++) from command line, (!!) notice, (II) informational,
>       (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Sun Jul 18 13:16:26 2010
> (==) Using config file: "/etc/X11/xorg.conf"
> (EE) RADEON(0): [dri] RADEONDRIGetVersion failed to open the DRM
> [dri] Disabling DRI.
>   XRANDR name: VGA-0
>   Connector: VGA
>   CRT1: INTERNAL_KLDSCP_DAC1
>   DDC reg: 0x7e50
>   XRANDR name: LVDS
>   Connector: LVDS
>   LCD1: INTERNAL_LVTM1
>   DDC reg: 0x7e40
> Dac detection success
> finished output detect: 0
> finished output detect: 1
> finished all detect
> Dac detection success
> Output LCD1 disable success
> Blank CRTC 0 success
> Disable CRTC 0 success
> Blank CRTC 1 success
> Disable CRTC 1 success
> Output CRT1 disable success
> Output LCD1 disable success
> Blank CRTC 0 success
> Disable CRTC 0 success
> Blank CRTC 1 success
> Disable CRTC 1 success
> Output LCD1 disable success
> Blank CRTC 0 success
> Disable CRTC 0 success
> Mode 1280x800 - 1440 823 10
> Picked PLL 0
> best_freq: 71152
> best_feedback_div: 159
> best_frac_feedback_div: 0
> best_ref_div: 2
> best_post_div: 16
> Set CRTC 0 PLL success
> Set CRTC Timing success
> Set CRTC 0 Overscan success
> Not using RMX
> scaler 0 setup success
> Set CRTC 0 Source success
> crtc 0 YUV disable setup success
> Output digital setup success
> Output LCD1 enable success
> Enable CRTC 0 success
> Unblank CRTC 0 success
> Output CRT1 disable success
> Blank CRTC 1 success
> Disable CRTC 1 success
> record: RECORD extension enabled at configure time.
> record: This extension is known to be broken, disabling extension now..
> record: http://bugs.freedesktop.org/show_bug.cgi?id=20500
> Bus error: 10 at address 0x802257ddb
> 
> Fatal server error:
> Caught signal 10 (Bus error: 10). Server aborting
> 
> 
> Please consult the The X.Org Foundation support 
>        at http://wiki.x.org
>  for help. 
> Please also check the log file at "/var/log/Xorg.0.log" for additional 
> information.
> 
> Output LCD1 disable success
> Blank CRTC 0 success
> Disable CRTC 0 success
> Blank CRTC 1 success
> Disable CRTC 1 success
> Enable CRTC 0 success
> Unblank CRTC 0 success
> XIO:  fatal IO error 35 (Resource temporarily unavailable) on X server ":0.0"
>       after 131 requests (131 known processed) with 0 events remaining.
> xdm error (pid 1146): Server for display :0 terminated unexpectedly: 1536
> 
> 
> 
> Here's the gdb output:
> 
> 
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "amd64-marcel-freebsd"...(no debugging symbols 
> found)...
> Core was generated by `Xorg'.
> Program terminated with signal 6, Aborted.
> Reading symbols from /usr/local/lib/libpciaccess.so.0...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libpciaccess.so.0
> Reading symbols from /usr/local/lib/libXfont.so.1...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libXfont.so.1
> Reading symbols from /usr/local/lib/libfreetype.so.9...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libfreetype.so.9
> Reading symbols from /usr/local/lib/libfontenc.so.1...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libfontenc.so.1
> Reading symbols from /lib/libz.so.6...(no debugging symbols found)...done.
> Loaded symbols for /lib/libz.so.6
> Reading symbols from /usr/local/lib/libXau.so.6...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libXau.so.6
> Reading symbols from /usr/local/lib/libpixman-1.so.9...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libpixman-1.so.9
> Reading symbols from /usr/local/lib/libhal.so.1...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libhal.so.1
> Reading symbols from /usr/local/lib/libdbus-1.so.3...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libdbus-1.so.3
> Reading symbols from /usr/local/lib/libXdmcp.so.6...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libXdmcp.so.6
> Reading symbols from /lib/libcrypto.so.6...(no debugging symbols 
> found)...done.
> Loaded symbols for /lib/libcrypto.so.6
> Reading symbols from /usr/lib/librpcsvc.so.5...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/lib/librpcsvc.so.5
> Reading symbols from /lib/libm.so.5...(no debugging symbols found)...done.
> Loaded symbols for /lib/libm.so.5
> Reading symbols from /lib/libthr.so.3...(no debugging symbols found)...done.
> Loaded symbols for /lib/libthr.so.3
> Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
> Loaded symbols for /lib/libc.so.7
> Reading symbols from 
> /usr/local/lib/xorg/modules/extensions/libextmod.so...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/libextmod.so
> Reading symbols from /usr/local/lib/xorg/modules/extensions/libdbe.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/libdbe.so
> Reading symbols from /usr/local/lib/xorg/modules/extensions/libglx.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/libglx.so
> Reading symbols from 
> /usr/local/lib/xorg/modules/extensions/librecord.so...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/librecord.so
> Reading symbols from /usr/local/lib/xorg/modules/extensions/libdri.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/libdri.so
> Reading symbols from /usr/local/lib/libdrm.so.2...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libdrm.so.2
> Reading symbols from /usr/local/lib/xorg/modules/extensions/libdri2.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/extensions/libdri2.so
> Reading symbols from /usr/local/lib/xorg/modules/drivers/radeon_drv.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/drivers/radeon_drv.so
> Reading symbols from /usr/local/lib/xorg/modules/libvgahw.so...(no debugging 
> symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/libvgahw.so
> Reading symbols from /usr/local/lib/xorg/modules/libint10.so...(no debugging 
> symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/libint10.so
> Reading symbols from /usr/local/lib/xorg/modules/libfb.so...(no debugging 
> symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/libfb.so
> Reading symbols from /usr/local/lib/xorg/modules/libxaa.so...(no debugging 
> symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/libxaa.so
> Reading symbols from /usr/local/lib/dri/swrast_dri.so...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/dri/swrast_dri.so
> Reading symbols from /usr/local/lib/libexpat.so.6...(no debugging symbols 
> found)...done.
> Loaded symbols for /usr/local/lib/libexpat.so.6
> Reading symbols from /usr/local/lib/xorg/modules/input/kbd_drv.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/input/kbd_drv.so
> Reading symbols from /usr/local/lib/xorg/modules/input/mouse_drv.so...(no 
> debugging symbols found)...done.
> Loaded symbols for /usr/local/lib/xorg/modules/input/mouse_drv.so
> Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols 
> found)...done.
> Loaded symbols for /libexec/ld-elf.so.1
> #0  0x0000000801a30d8c in kill () from /lib/libc.so.7
> [New Thread 801c071c0 (LWP 100123)]
> (gdb) quit

Does bt help at all:

(gdb) bt full
#0  0x0000000801a30d8c in kill () from /lib/libc.so.7
No symbol table info available.
#1  0x0000000801a2fb4b in abort () from /lib/libc.so.7
No symbol table info available.
#2  0x0000000000476744 in ddxGiveUp ()
No symbol table info available.
#3  0x000000000046fcdd in AbortServer ()
No symbol table info available.
#4  0x000000000047035f in FatalError ()
No symbol table info available.
#5  0x000000000046a581 in OsInit ()
No symbol table info available.
#6  <signal handler called>
No symbol table info available.
#7  0x0000000802256a4b in DrawableGone ()
   from /usr/local/lib/xorg/modules/extensions/libglx.so
No symbol table info available.
#8  0x00000000004524cc in FreeResource ()
No symbol table info available.
#9  0x0000000000434c2b in ProcDestroyWindow ()
No symbol table info available.
#10 0x0000000000437460 in Dispatch ()
No symbol table info available.
#11 0x000000000042d7ba in main ()
No symbol table info available.
(gdb) 

Is there any way I can increase amount of debugging information?

Will launching xdm with -debug <some number> help?

Please advise

many thanks
anton


-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
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