cygwin locks up after starting gnome session via xdmcp and gdm

[B. Brickhouse]

Hello.

I have the following problem that I have not been able to work around and am 
hoping someone has a fix, or hoping that at least someone has seen it 
before.

I am running cygwin/x on a Dell XPS400 running WinXP w/ SP2.  I am using 
XDMCP to connect to a gentoo linux server running gdm.  Everything was 
working perfectly for ~week and then yesterday, out of the blue, the Cygwin 
screen would lock up whenever I try and resize windows or access the desktop 
toolbar menus.  I noticed that the network utilization goes way up on both 
the client and the server when this happens.  Eventually the Linux 
workstation times out and 'whacks' the connection.  Has anyone seen any of 
these symptoms?

I have read through the mailing list archives and have tried the following 
based on what I read.  Nothing has helped:

1) disabled the Windows and McAfee firewall software
2) tried starting XWin.exe with the -kb option
3) rebooted both Windows and Linux machines (I've done this numerous times)

Using tethereal I was able to capture the packets that seem to be causing 
the high network utilization (see snippet below).  It appears that the 
Cygwin application is sending a ton of X11 Error packets, but the error code 
is 0 (success).

101233  25.503239  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101234  25.503274  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101235  25.503314  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101236  25.503342  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101237  25.503382  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101238  25.503417  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101239  25.503431  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101240  25.503485  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101241  25.503513  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
101242  25.503553  192.168.1.7 -> 192.168.1.8  X11 Error: 
Success[Unreassembled Packet]
these packets occur every 20-100 microsec and go on and on and on...

Any help/insight anyone can provide would be most appreciated.


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