Regression tester confusion

[Michael Elizabeth Chastain]

> There's something odd going on with mips-elf gdb.base/interrupt.exp.
> It seems to be failing at random---this is the third time it's
> mysteriously appeared.  The symptoms have been that the .log file
> contains:

I've seen this before in gdb.base/interrupt.exp and gdb.c++/annota2.exp.
It happens more frequently in gdb.c++/annota2.exp.  I've even seen it
happen on unloaded machines.  It happens to me on native i686-pc-linux-gnu
using tcl 8.3.4, expect 5.33.0, and dejagnu 1.42, both plain and with
FernandoN's kfail patch (which does not touch the core machinery).

I've seen this with identical software on back-to-back runs on an
unloaded machine.  This is definitely an issue with the test harness,
not with the software under test.

I will look into this tomorrow night (I've already got a task for
tonight).

Michael C