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From: Alan Pinstein <apinstein@mac.com>
To: zsh-users@zsh.org
Subject: Re: Commands run from functions don't exit cleanly on terminal close (SIGHUP)?
Date: Mon, 05 Nov 2012 14:05:35 -0500	[thread overview]
Message-ID: <18244819-CAD8-4AA7-B46A-62C18CEC5BA3@mac.com> (raw)
In-Reply-To: <121102001808.ZM13144@torch.brasslantern.com>

> But now I think you mean
>   zsh -> function -> function runs ssh -> ssh runs command -> HUP zsh

Yes.

I am on a Mac, using iTerm. I start a new window in iTerm. It loads my zshrc which includes a function definition that wraps ssh.

If I run "/usr/bin/ssh somewhere" (skipping the function) and then CLOSE the terminal window, the ssh call exits as expected and everything is great.

If I run "ssh somewhere" (which ssh's from inside a function) and then CLOSE the terminal window, the ssh command does not exit, it gets orphaned (ppid=1) and never exits. This causes issues b/c I think the command loses its TTY and it ends up hosing my screen session on the other end of the ssh session. If I kill the orphaned process, screen starts working immediately again.

I was able to reproduce the orphaning behavior with a PHP command so I know that it isn't some weird SSH bug.

Does that help?

Alan


      reply	other threads:[~2012-11-05 20:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <2B813FB0-0877-42BA-974C-1A142EF09BCE@mac.com>
     [not found] ` <909858C7-4B5A-4679-90B3-6BF5398BA9FC@mac.com>
     [not found]   ` <20121025112222.3dfbb213@pws-pc.ntlworld.com>
     [not found]     ` <D1AA5CA1-BB91-45D4-90D7-1596FF81F6AE@me.com>
     [not found]       ` <C6890E9F-F729-40FA-9305-055E9F165391@mac.com>
     [not found]         ` <121025075455.ZM3417@torch.brasslantern.com>
     [not found]           ` <E8AA19A7-2E79-48A4-BB2F-6F3CCF769EBC@mac.com>
2012-10-27 18:07             ` Bart Schaefer
2012-10-28  1:33               ` Alan Pinstein
2012-10-28 17:07                 ` Bart Schaefer
2012-11-01 18:26                   ` Alan Pinstein
2012-11-02  7:18                     ` Bart Schaefer
2012-11-05 19:05                       ` Alan Pinstein [this message]

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