Open Kalamatee opened 3 years ago
Sometimes I experience a similar issue. I use the npiperelay
tool to communicate SSH agents in Windows and WSL2. Usually, it works great, but sometimes SSH commands in WSL2 hang. I'm not sure the npiperelay
tool is a genuine reason for this problem, though.
Is there a way to debug such an issue?
I have the same problem as @RomanDanyk. Using npiperelay to communicate from WSL2 with windows native ssh-agent works fine for weeks and then suddenly stops working. All ssh commands in WSL2 just hang forever. I already tried:
But so far, no success. A reboot fixes the issue, but that seems like overkill. Any ideas on how to debug or fix the issue would be great.
I've been hitting similar issues with git commands hanging as I use SSH key auth and forward key requests to the Windows SSH Agent with npiperelay
.
What I noticed is that when this stops working for me, it seems like the WSL -> Windows interop is broken. E.g. running notepad.exe
from a shell in the WSL distro also fails. I created an issue in the WSL repo, so it might be worth upvoting that if you're hitting the same issue?
I can confirm the observation of @stuartleeks: starting any (even console executable) windows program from WSL2 just fails. The terminal blocks forever (Ctrl-C doesn't work) - the w32 executable has to be killed from a second terminal.
So the problem doesn't seem to be a npiperelay issue. Still, it might make sense to keep this issue around as a pointer to the WSL2 issue.
I use npiperelay
to conenct the SSH_AUTH_SOCK
to the ssh-agent
running on Windows.
Very recently my ssh connections (logins) started to be very slow (6s), hanging at:
debug1: rekey in after 134217728 blocks
🦗 6s
debug1: get_agent_identities: agent returned 2 keys
Also ssh-add -l
in WSL hangs for the same amount of time, as well as:
$ time npiperelay.exe --help
Usage of npiperelay.exe:
...
real 0m5.256s
It was caused by Windows Defender Real-time protection. I was able to resolve it by adding an exclude for the directory where npiperelay.exe
is located, like that:
\\wsl.localhost\<dist>\<npiperelay_directory>
Im trying to connect the serial port as described in the instructions, but when the script is run, it just hangs and goes no further?