bus errors when the network interface is reset?

[David M Chess]

We have a system running Python 2.6.6 under RHEL 6.1.  A bunch of 
processes spend most of their time sitting in a BaseHTTPServer.HTTPServer 
waiting for requests.

Last night an update pushed out via xcat whimsically restarted all of the 
network interfaces, and at least some of our processes died with bus 
errors (i.e. no errors or exceptions reflected up to the Python level, 
just a crash).

This is just my initial looking into this.  Seeking opinions of the form, 
say:

Yeah, that happens, don't reset the network interfaces.
Yeah, that happens, and you can prevent the crash by doing X in your OS.
Yeah, that happens, and you can prevent the crash by doing X in your 
Python code.
That wouldn't happen if you upgraded S to version V.
That sounds like a new bug and/or more information is needed; please 
provide copious details including at least X, Y, and Z.

Any thoughts or advice greatly appreciated.

DC
David M. Chess
IBM Watson Research Center
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