Insight freezes when trying to debug Mozilla

[bstell at ix dot netcom dot com]

I'm trying to debug Mozilla using Insight.

When I run mozilla with the debug option the insight debugger comes
up and lets me start mozilla. I click the run button and it starts
and then does a break at main. When I press continue mozilla comes
up but insight never responds again (not screen refresh or button 
response.

I am running version 20000930 (/usr/local/bin/gdb).

I attached a second gdb to insight's gdb.
Here is the output for the xterm where I was running gdb on gdb:
=====================================================================

    [root@localhost gdb]# /usr/bin/gdb /usr/local/bin/gdb
    GNU gdb 19991004
    Copyright 1998 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"...
    Setting up the environment for debugging gdb.
    Breakpoint 1 at 0x810a062: file utils.c, line 735.
    Breakpoint 2 at 0x81074ff: file top.c, line 2897.
    (top-gdb) attach 22239
    Attaching to program: /usr/local/bin/gdb, Pid 22239
    Reading symbols from /usr/lib/libncurses.so.4...done.
    Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
    Reading symbols from /lib/libdl.so.2...done.
    Reading symbols from /lib/libm.so.6...done.
    Reading symbols from /lib/libc.so.6...done.
    Reading symbols from /lib/ld-linux.so.2...done.
    Reading symbols from /lib/libthread_db.so.1...done.
    0x40140deb in __sigsuspend (set=0x83e36c0) at
../sysdeps/unix/sysv/linux/sigsuspend.c:48
    48      ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or
directory.
    (top-gdb) bt
    #0  0x40140deb in __sigsuspend (set=0x83e36c0) at
../sysdeps/unix/sysv/linux/sigsuspend.c:48
    #1  0x80d1092 in lin_lwp_wait (pid=-1, ourstatus=0xbfffc074) at
lin-lwp.c:766
    #2  0x812dd11 in thread_db_wait (pid=-1, ourstatus=0xbfffc074) at
thread-db.c:710
    #3  0x80e1ad7 in gdbtk_wait (pid=-1, ourstatus=0xbfffc074) at
./gdbtk/generic/gdbtk-hooks.c:694
    #4  0x80b269f in wait_for_inferior () at infrun.c:1286
    #5  0x80b252c in proceed (addr=4294967295,
siggnal=TARGET_SIGNAL_DEFAULT, step=0) at infrun.c:1085
    #6  0x80afba3 in continue_command (proc_count_exp=0x0, from_tty=0)
at infcmd.c:399
    #7  0x80e1666 in gdbtk_call_command (cmdblk=0x8418140, arg=0x0,
from_tty=0) at ./gdbtk/generic/gdbtk-hooks.c:513
    #8  0x8105915 in execute_command (p=0x89a4310 "", from_tty=0) at
top.c:1517
    #9  0x80dadb5 in gdb_immediate_command (clientData=0x80dace4,
interp=0x8424fb0, objc=2, objv=0x8425c68)
        at ./gdbtk/generic/gdbtk-cmds.c:892
    #10 0x80da888 in wrapped_call (opaque_args=0xbfffc284) at
./gdbtk/generic/gdbtk-cmds.c:536
    #11 0x81048d9 in catch_errors (func=0x80da858 <wrapped_call>,
args=0xbfffc284, errstring=0x8356883 "", mask=6)
        at top.c:607
    #12 0x80da78e in call_wrapper (clientData=0x80dace4,
interp=0x8424fb0, objc=2, objv=0x8425c68)
        at ./gdbtk/generic/gdbtk-cmds.c:474
    #13 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
codePtr=0x8789528) at ./../generic/tclExecute.c:955
    #14 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x853ccf8) at
./../generic/tclBasic.c:2645
    #15 0x83297d1 in TclObjInterpProc (clientData=0x85a8d10,
interp=0x8424fb0, objc=1, objv=0x8425c64)
        at ./../generic/tclProc.c:996
    #16 0x82ff5f9 in TclExecuteByteCode (interp=0x8424fb0,
codePtr=0x89a4288) at ./../generic/tclExecute.c:955
    #17 0x82de521 in Tcl_EvalObj (interp=0x8424fb0, objPtr=0x897ac40) at
./../generic/tclBasic.c:2645
    #18 0x82eb10d in Tcl_SwitchObjCmd (dummy=0x0, interp=0x8424fb0,
objc=3, objv=0x8425c58)
    ---Type <return> to continue, or q <return> to quit---q
     at ./../generic/tclCmdMZ.c:17Quit
    (top-gdb) 
    
Here is the output for the xterm where I was running mozilla:
=====================================================================

    [bstell@localhost bin]$ ./mozilla -g 2>&1 | tee junk.mozilla.-g.log
    ./run-mozilla.sh -g ./mozilla-bin
    MOZILLA_FIVE_HOME=.
      LD_LIBRARY_PATH=.
         LIBRARY_PATH=.:./components
           SHLIB_PATH=.
              LIBPATH=.
           ADDON_PATH=.
          MOZ_PROGRAM=./mozilla-bin
          MOZ_TOOLKIT=
            moz_debug=1
         moz_debugger=
    which: no ddd in
(/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/home/bstell/bin)
    Type Manifest File:
/home/bstell/work/moz/v1/mozilla/dist/bin/components/xpti.dat
    nsNativeComponentLoader: autoregistering begins.
    nsNativeComponentLoader: autoregistering succeeded
    nNCL: registering deferred (0)
    GFX: dpi=96 t2p=0.0666667 p2t=15 depth=24
    WEBSHELL+ = 1
   
IsPluginFile(/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so)
    LoadPlugin()
/home/bstell/work/moz/v1/mozilla/modules/plugin/default/unix/libnullplugin.so 
    returned 8183558
    debug: edburns ns4xPlugin::CreatePlugin
    debug: edburns ns4xPlugin::CreatePlugin: cleared callbacks
    debug: edburns: ns4xPlugin::CreatePlugin: callbacks->newstream:
0x41181c38
    plugin getvalue 1 called
    plugin getvalue 2 called
    plugin getmimedescription called
    GetMIMEDescription() returned "*:.*:All types"
    Registering plugin for: "*","All types",".*"
    Initialized app shell component
{18c2f989-b09f-11d2-bcde-00805f0e1353}, rv=0x00000000
    Initialized app shell component
{33e569b0-40f8-11d4-9a41-000064657374}, rv=0x00000000
    ProfileName : default
    ProfileDir  : /home/bstell/.mozilla/default
    CSSLoaderImpl::LoadAgentSheet: Load of URL
'file:///home/bstell/.mozilla/default/chrome/use
    rChrome.css' failed.  Error code: 16389
    CSSLoaderImpl::LoadAgentSheet: Load of URL
'file:///home/bstell/.mozilla/default/chrome/use
    rContent.css' failed.  Error code: 16389
    WEBSHELL+ = 2
    Enabling Quirk StyleSheet
    Note: verifyreflow is disabled
    Note: styleverifytree is disabled
    Note: frameverifytree is disabled
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarks.js line 960:
redeclaration of var cmd
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarks.js line 962:
redeclaration of var cmdReso
    urce
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://navigator/content/navigator.js line 1518: function
readFromClipboard does not alwa
    ys return a value
    
    Start reading in bookmarks.html
    Finished reading in bookmarks.html  (735539 microseconds)
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/builtinURLs.js line 96: redeclaration
of var ds_uri
    
    WEBSHELL+ = 3
    Enabling Quirk StyleSheet
    Setting content window
    *** Pulling out the charset
    JavaScript strict warning: 
    chrome://navigator/content/navigator.js line 433: reference to
undefined property window.ar
    guments[1]
    
    Loading page specified via openDialog
    Opening file cookperm.txt failed
    in SetSecurityButton
    Error loading URL http://www.mozilla.org/: 804b001e 
    we don't handle eBorderStyle_close yet... please fix me
    WEBSHELL+ = 4
    WARNING: not calling OnDataAvailable, file
nsAsyncStreamListener.cpp, line 403
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://global/content/commonDialog.js line 122: redeclaration of
var containerID
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://global/content/commonDialog.js line 122: redeclaration of
var fieldID
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://global/content/commonDialog.js line 137: redeclaration of
var field
    
    JavaScript strict warning: 
    chrome://global/content/commonDialog.js line 30: assignment to
undeclared variable param
    
    WEBSHELL+ = 5
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bm-panel.js line 122:
function OpenBookmarkURL does
     not always return a value
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarks.js line 960:
redeclaration of var cmd
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarks.js line 962:
redeclaration of var cmdReso
    urce
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarksDD.js line 323:
redeclaration of var data
    
    WARNING: waaah!, file nsXULPrototypeDocument.cpp, line 523
    JavaScript strict warning: 
    chrome://communicator/content/bookmarks/bookmarksDD.js line 453:
redeclaration of var nodeI
    ndex
    
    nsWidget::~nsWidget() of toplevel: 11 widgets still exist.
    WEBSHELL- = 4
    JavaScript strict warning: 
     line 9: function onget does not always return a value
    
    JavaScript strict warning: 
     line 9: function onset does not always return a value