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Defunct processes with 1.5.25-15; seemingly reproducible


It is my understanding that this problem is not easily reproducible.
Well, I've been reproducing it locally since last night. ?I'm going to
try leaving every cygwin-related process as-is as long as necessary,
in the hope of beating this problem into submission.

The problem:

$ ps
? ? ?PID ? ?PPID ? ?PGID ? ? WINPID ?TTY ?UID ? ?STIME COMMAND
...
? ? 4164 ? ?1288 ? ?7684 ? ? ? 5504 ? ?6 1003 23:49:20 <defunct>
? ? 5392 ? ?3224 ? ?5984 ? ? ? 6100 ? ?5 1003 23:49:06 <defunct>
? ? 1452 ? ?5240 ? ?5984 ? ? ? 8104 ? ?5 1003 23:49:06 <defunct>
? ? 5240 ? ?3224 ? ?5984 ? ? ? 4532 ? ?5 1003 23:49:06 <defunct>
...

$ kill 4164
bash: kill: (4164) - No such process

The PIDs seem to be the same every time this happens. ?Specifically, I
have seen 5240 and 1452 every time. ?Whether that's significant, I
don't know.

They all seem to be child processes from a long-running gnuplot
process which creates hundreds---often thousands---of graphs per
session. ?They do not prevent gnuplot from completing. ?They do
prevent me from opening some of the output files. ?Once I kill a
process, its file lock is released, and so far all of the affected
files seem to be just fine.

If anyone would care to pursue this, I will be as helpful as I can.

Attachment: cygcheck.out
Description: Binary data

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