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doc/bugs/git_annex_test_fails/comment_4_a4bbb2efcf75167ac938b00128b340fd._comment

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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 4"""
+ date="2017-09-30T01:24:35Z"
+ content="""
+Built with ghc 8.2.1 on linux, I am seeing significantly more sub-processes
+and open files. Up to 170 sub-processes and 350 open files.
+
+Most of the open files are pipes.
+Most of the sub-processes are git cat-file --batch, and these are
+definitely lingering from test repos it's no longer using.
+
+Kind of looks like the annex state created by Test.annexeval
+is not getting garbage collected, and so the handles it has open are
+not getting closed. Hmm, I don't normally rely on GC to close handles,
+and am a bit surprised that ever worked, since the handles are pipes to
+processes that have no reason to exit unless the handles are closed.
+
+Made it explicitly stop the co-processes, and that seems to have fixed it.
+Indeed, the number of git subprocesses dropped to mostly below 10 since
+they get cleaned up without waiting for GC now.
+"""]]