Am 06.08.2020 um 20:07 schrieb Brad Wetmore via Cygwin:
[I apologize if this doesn't thread correctly: I've been getting the digest,
and can't respond directly. And I have no idea how my name ended up in the
Subject line: Rookie Move!]
More debug information, and a workaround/solution:
I am running:
Windows 10 Version 1909, fully patched.
Cygwin v3.1.6-1
Openssh v8.3p1-1
mintty v3.2.0-1
tcsh v6.22.02-1
The issue seems to be a race condition setting up ssh-agent, and then
immediately starting up the the mintty/tcsh terminals. My guess is that
something in ssh-agent is not fully setup yet, and is causing read hiccups in
mintty.
My startup script looks like:
#!/bin/sh
if [ -z "$SSH_AGENT_PID" ] ; then
echo "Starting ssh-agent"
eval $(ssh-agent)
ssh-add
#sleep 3
fi
C:/cygwin64/bin/mintty.exe -i /usr/share/mintty/icon/wsl.ico \
--position 0,0 --size 80x24 --fg black --bg white /bin/tcsh &
#sleep 1
...9 more invocations deleted...
Without the sleep 3 after starting ssh-agent, I see one of three conditions:
1. The mintty window is created, but immediately crashes printing a dozen or so "Use
"exit" to leave tcsh" before it does. At least that I think it says, it happens
fast! ;)
2. The mintty window is created, and is ready for input. On the first keypress, it prints a dozen
or so "Use "exit" to leave tcsh" and crashes.
3. The mintty window is created, and hangs. No prompt.
I get conditions #1/2 when I don't pause between mintty invocations.
I get condition #2 when I pause for 1 second between mintty invocations.
If I pause for 3 seconds after starting ssh-agent, then everything works as
expected.
Note this issue occurs only during the first setup of 10 terminals. Running it
again does not tickle the issue, probably because ssh-agent is fully up.
Hope this helps.
You had previously reported the issue without ssh involved. Does this
make it reproducible more often? Otherwise let's not make things
unnecessarily complicated.
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