Dead proxy tunnel not cleared

[Darren Tucker]

Jan Engelhardt wrote:
> Yes, 2.6.8 from Suse 9.2. (Read: 2.6.8+2.6.9-rc1)
> I do not think this issue is related to me, as the problem is on the client 
> side, i.e. a bug of ssh, not sshd.

Ah, you're using a ProxyComand?  And the proxycommand is exitting but 
ssh is never finding this out?

Could you please supply the ProxyCommand options and the output of "ssh 
-vvv whereever" (with any IP addresses obscured in both if required).

 From your description it sounds like it's a problem with select() not 
returning a close when the proxycommand dies rather than a signal thing 
(afaict ssh doesn't use on SIGCHLD at all).  You can test this by 
attaching an strace -p to a hung ssh process.

-- 
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
     Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.