Dead proxy tunnel not cleared

[Jan Engelhardt]

> 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?

Yes, but it has been rare that the proxycommand has not been reaped.

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

Host linux01
  ProxyCommand /usr/local/bin/tunnelconnect -H 172.16.60.1:3128 
alphagate.hopto.org 443

> 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.

Will do so whenever it happens again.


Jan Engelhardt
-- 
If you knew the language, you'd know that: 私は考える、従って私はある。