Am 04.08.2020 um 12:02 schrieb Thomas Wolff:
Am 04.08.2020 um 00:13 schrieb Brad Wetmore via Cygwin:
Hi,
I generally kick off multiple (10) mintty sessions, and place them
around the screen.
C:/cygwin64/bin/mintty.exe -i /Cygwin-Terminal.ico \
--position @3 --position 120,0 --size 80x71 /bin/tcsh &
C:/cygwin64/bin/mintty.exe -i /Cygwin-Terminal.ico \
--position @3 --position 715,0 --size 80x45 /bin/tcsh &
C:/cygwin64/bin/mintty.exe -i /Cygwin-Terminal.ico \
--position @3 --position 715,660 --size 80x24 /bin/tcsh &
Within the last 6 months or so, about 2-3 of them would hang and
either mintty/tcsh would not start. I put a "sleep 1" in between each
invocation and that seemed to take care of it.
With the latest cygwin update, about 8 of them just hang even with
the sleep 1. I put in a "sleep 2", and now everything is coming up
again.
Not sure if this is a mintty or tcsh issue, but just wondering if
others are seeing this before I start trying to debug this.
I can reproduce such behaviour with /bin/bash (easy cross-check), and
in fact the shell is running in that case (easy test via `echo >
.log`), so I have a vague and unpleasant suspicion it might in fact be
related to mintty although I have no idea how that would happen. To be
analysed.
When in this state, on the pty from which mintty receives child process
output, select() does not report a ready for reading condition; could it
be related to the recent poll/select patch? I could not reproduce it in
cygwin 3.0.7.
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