A <defunct> process is not necesarily the real "problem". All <defunct>
process are processes that their parent has NOT done a wait(2) yet.
Since these <defunct> processes have called exit(2), they must hang
around until a wait(2) is completed so that the exit status can be
returned to the parent.
You need to understand more of the parent/child relationship before
you can pass blame, if any.
Dave Steenburgh wrote:
cgf wrote:
Defunct processes are not necessarily indicative of a cygwin problem.
This could easily be a problem with gnuplot.
Given the sum of my own limited knowledge of the problem at hand (in
summary: every program involved is in my local cygwin directory), I
figured it was best to ask here first.
Dave Steenburgh wrote:
$ ps
PID PPID PGID WINPID TTY UID STIME COMMAND
...
4164 1288 7684 5504 6 1003 23:49:20
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>
...
...
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.
Now, this is interesting... I killed those defunct processes with
process explorer, and subsequently confirmed via ps, task manager, and
process explorer that they were no longer running. I began another
session with gnuplot, and this time there are three:
$ ps
...
5240 3224 5984 4532 5 1003 23:49:06 <defunct>
4164 1288 7684 5504 6 1003 23:49:20 <defunct>
5392 3224 5984 6100 5 1003 23:49:06 <defunct>
...
For each of those, the entire row is identical to a row in my previous
message. Since I started the session around 14:00, and the last
output file's modification timestamp is 17:21, I'd say the timestamps
for those three processes are not reliable. Is it possible that the
original defunct processes were never truly killed? If so, can they
be killed without rebooting?
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
