Since v9 exiting host consoles just hang

[Taomyn]

Since upgrading some hosts to v9 from v8 I have noticed that exiting the host console from the web interface it now just hangs.

When typing exit the console just sits there


Then if I hit Ctrl-C it exits



But there is an error logged for the task



When doing the same on a v8 host exiting takes me straight to the "Disconnecting" step, and the task stops cleanly. I have 3 v9 hosts and they all do the same and so does my PBS server on v4, which was fine when running v3.

 

[dcsapak]

hi,

the cause of change seems to be this commit:
https://git.proxmox.com/?p=pve-xtermjs.git;a=commit;h=7b47cca8368e63c30f6227442570f9f35dd7ccf0

ignore HUP on the pty

There is a timing issue which is hitting us in trixie for some reason:
The `login` tool has always done the following at startup:
- vhangup()
- close 0/1/2 and reopen it

Both of these potentially cause an EPOLLHUP to trigger
`event.is_read_closed()`. Let's ignore hangups on the PTY. This means
that typing "exit" on the "shell" tab in the UI will not close the
pty, only switching to a different screen will, but we cannot really
distinguish between the different types of hangups...

so we needed to change the behavior because of some timing change from bookworm -> trixie
not sure how we can fix that at the moment, but it's just a "cosmetic" issue