Machine/OS: Pentium CPU, Linux kernel 2.4.20-20.9smp
Display:    Xgalileo (Jupiter DDX)
Window Mgr: KDE

Description:
I have two systems in my office, a desktop system and a development
system for X server and remote X client applications development. 
The remote client runs on the development system and opens its GUI
on my desktop system. When it does this, it examines the desktop
X server's font path and adds the development system's font server
to it if it's not already there.

When I reboot the development system, my desktop X server hangs until
the development system's font server is restarted. If I remove the
development system's font server from my desktop X server's fontpath,
rebooting the development system will not affect my desktop X server.

When my desktop X server hangs, even the hardware cursor will not move.
I can still log in from another host, so this is not an OS hangup. It 
happens every time. 

I tried recreating this by reversing the situation between the two
machines since I can grab the development system's X server with the
ddd debugger. The symptoms were slightly different and unpredictable.
The development system's X server locked up every time but sometimes
this was total, like my desktop. Other times it did not lock up until
I attempted to move a window or pull down a menu. When I grabbed the
development systems X server with the debugger it was in new_select.
Sometimes everything was locked except the cursor. Sometime it would
periodically come out of new_select, although it didn't do any work.
Other times, even sending it a request, e.g. xdpyinfo, never cause it
to come out of new_select. 

Perhaps this is because of differences between the two systems, the
being the development system is a dual Coppermine Pentium system
running the same kernel.