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Marc,Thank you for your reply. The X server was not compiled with debug symbols. I tried getting a backtrace of the X server didn't get much of anything useful. If you know of a way to get the current state of the X server w/o debug symbols please let me know! With some trouble I can compile the X server with debug symbols and wait for the problem to happen again... if that's the only alternative.
--Joel t On Dec 23, 2006, at 10:38 AM, Marc Aurele La France wrote:
On Fri, 22 Dec 2006, Joel Breazeale wrote:I am using XFree86 4.2.1 on Redhat 7.3 with kernel version 2.4.22. The X server seems to be infinite looping -- top says it is utilizing 99.9% of the CPU. I suspect an X client application is involved though I don't know if it is the cause or a victim. Here's a backtrace of the X client (I'm including the loading of symbols just in case something in it is useful):GNU gdb Red Hat Linux (5.1.90CVS-5) Copyright 2002 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 "i386-redhat-linux"... (gdb) attach 1600 Attaching to program: /home/ngtp/bin/gpc/TPuip, process 1600 Reading symbols from /usr/X11R6/lib/libXm.so.3...done. Loaded symbols for /usr/X11R6/lib/libXm.so.3 Reading symbols from /usr/X11R6/lib/libXmu.so.6...done. Loaded symbols for /usr/X11R6/lib/libXmu.so.6 Reading symbols from /usr/X11R6/lib/libXext.so.6...done. Loaded symbols for /usr/X11R6/lib/libXext.so.6 Reading symbols from /usr/X11R6/lib/libXt.so.6...done. Loaded symbols for /usr/X11R6/lib/libXt.so.6 Reading symbols from /usr/X11R6/lib/libX11.so.6...done. Loaded symbols for /usr/X11R6/lib/libX11.so.6 Reading symbols from /lib/libnsl.so.1...done. Loaded symbols for /lib/libnsl.so.1 Reading symbols from /usr/X11R6/lib/libXpm.so.4...done. Loaded symbols for /usr/X11R6/lib/libXpm.so.4 Reading symbols from /lib/i686/libm.so.6...done. Loaded symbols for /lib/i686/libm.so.6 Reading symbols from /lib/libcrypt.so.1...done. Loaded symbols for /lib/libcrypt.so.1 Reading symbols from /opt/lib/libtcl.so...done. Loaded symbols for /opt/lib/libtcl.so Reading symbols from /lib/i686/libc.so.6...done. Loaded symbols for /lib/i686/libc.so.6 Reading symbols from /usr/X11R6/lib/libSM.so.6...done. Loaded symbols for /usr/X11R6/lib/libSM.so.6 Reading symbols from /usr/X11R6/lib/libICE.so.6...done. Loaded symbols for /usr/X11R6/lib/libICE.so.6 Reading symbols from /usr/X11R6/lib/libXp.so.6...done. Loaded symbols for /usr/X11R6/lib/libXp.so.6 Reading symbols from /lib/libdl.so.2...done. Loaded symbols for /lib/libdl.so.2 Reading symbols from /lib/ld-linux.so.2...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /lib/libnss_files.so.2...done. Loaded symbols for /lib/libnss_files.so.2Reading symbols from /usr/X11R6/lib/X11/locale/common/xlcDef.so. 2...done.Loaded symbols for /usr/X11R6/lib/X11/locale/common/xlcDef.so.2Reading symbols from /usr/X11R6/lib/X11/locale/common/ximcp.so. 2...done.Loaded symbols for /usr/X11R6/lib/X11/locale/common/ximcp.so.2 0x420e1a0e in select () from /lib/i686/libc.so.6 (gdb) bt #0 0x420e1a0e in select () from /lib/i686/libc.so.6#1 0x40377f04 in _XlcPublicMethods () from /usr/X11R6/lib/ libX11.so.6#2 0x402d556a in _XRead () from /usr/X11R6/lib/libX11.so.6 #3 0x402d602a in _XReply () from /usr/X11R6/lib/libX11.so.6#4 0x402c11fe in XGetWindowAttributes () from /usr/X11R6/lib/ libX11.so.6 #5 0x080cb0ed in ListSelectionCB (w=0x82485f8, client_data=0x82476e8,call_data=0xbffff4d0) at XdmList.c:498#6 0x402655f6 in XtCallCallbackList () from /usr/X11R6/lib/ libXt.so.6#7 0x400a35ef in ClickElement () from /usr/X11R6/lib/libXm.so.3 #8 0x400a1824 in HandleNewItem () from /usr/X11R6/lib/libXm.so.3 #9 0x400a3fca in PrevElement () from /usr/X11R6/lib/libXm.so.3 #10 0x40294601 in _XtMatchAtom () from /usr/X11R6/lib/libXt.so.6 #11 0x40294acc in _XtMatchAtom () from /usr/X11R6/lib/libXt.so.6 #12 0x40295057 in _XtTranslateEvent () from /usr/X11R6/lib/libXt.so.6#13 0x40270cc8 in XtDispatchEventToWidget () from /usr/X11R6/lib/ libXt.so.6#14 0x40271744 in _XtOnGrabList () from /usr/X11R6/lib/libXt.so.6 #15 0x40271997 in XtDispatchEvent () from /usr/X11R6/lib/libXt.so.6 #16 0x080c5a9c in UixAppProcessEvent (app=0x81e80a0) at UixAppProcessEvent.c:272 #17 0x0804f58e in main (argc=2, argv=0xbffff8d4) at uip.c:516 #18 0x42017589 in __libc_start_main () from /lib/i686/libc.so.6 (gdb)Is there anything I can do to see what the X server is doing? Does anything in the above backtrace indicate whether the X client was the cause or the victim of this problem? If additional information would be useful toward diagnosing this problem then please let me know and I will get it!It would be useful to see a backtrace of the server. However, to generate one, you would need to login from another system.Also, XFree86 4.2.1 is quite old, so there's a good chance this problem has been addressed in a more recent version.Marc.+---------------------------------- +----------------------------------+ | Marc Aurele La France | work: 1-780-492-9310 | | Academic Information and | fax: 1-780-492-1729 | | Communications Technologies | email: tsi@xxxxxxxxxxx | | 352 General Services Building +----------------------------------+ | University of Alberta | | | Edmonton, Alberta | Standard disclaimers apply | | T6G 2H1 | | | CANADA | | +---------------------------------- +----------------------------------+XFree86 developer and VP. 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