Well I've solved one problem, but now I have another one. To try to
understand why except is getting broken pipes (child processes are
"going away"), I modified DejaGNU's /usr/bin/runtest so that it would
strace each except process:
-exec "$expectbin" $debug -- "$runpath"/runtest.exp $target ${1+"$@"}
+exec strace --output=/tmp/runtest.$$.log --trace-children
--mask=startup $expectbin $debug -- $runpath/runtest.exp $target ${1+"$@"}
However, when I run make -kj8 check after this, Cygwin processes that do
file I/O and even ps become very unresponsive and CPU utilization is low
(not to say that DejaGNU is good at balancing the test load). If I hit
ctrl-C on the make process, it won't exit for somewhere around 30
seconds. I am able to reproduce this to some degree with this simple
snippet, although the delays aren't as long as doing the above:
for ((i = 0; i < 64; ++i)); do strace --output=/tmp/sleep.$$.log
--trace-children --mask=startup sleep 64; done
Can anybody try this and see if they get delays when running ps -ef or
some such?
Thanks,
Daniel
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