SSH connection hanging on logout

[Markus Friedl]

On Thu, May 17, 2001 at 03:35:18PM -0000, John Bowman wrote:
> > you should see something like this on the sshd side:
> > 
> > 	debug3: channel 0: channel data: 16384
> > 	debug3: channel 0: read rfd 10 len 16384
> > 	debug3: channel 0: channel data: 15907
> > 	debug2: channel 0: rcvd adjust 16861
> > 	debug3: channel 0: channel data: 477
> > 	debug3: channel 0: read rfd 10 len 16384
> > 	debug3: channel 0: channel data: 16384
> > 	debug2: channel 0: rcvd adjust 65536
> > 	debug3: channel 0: read rfd 10 len 16384
> > 	debug3: channel 0: channel data: 16384
> > 	debug3: channel 0: read rfd 10 len 16384
> > 	debug3: channel 0: channel data: 16384
> > 	debug1: Received SIGCHLD.
> > ^^ shell dies
> > 	debug1: session_by_pid: pid 29873
> > 	debug1: session_exit_message: session 0 channel 0 pid 29873
> > 	debug1: session_exit_message: release channel 0
> > 	debug1: channel 0: write failed
> > 	debug1: channel 0: output open -> closed
> > 	debug1: channel 0: close_write
> > 	debug1: session_free: session 0 pid 29873
> > 	debug3: channel 0: read rfd 10 len 16384
> > ^^ more reads from the shell.
> > 
> > if you shutdown at the SIGCHLD, you can no longer read
> > at this point!
> > 
> > 	debug2: channel 0: read 84 from efd 12
> > 	debug3: channel 0: channel data: 16384
> > 	debug2: channel 0: rwin 16384 elen 84 euse 1
> > 	debug2: channel 0: sent ext data 84
> > 	debug1: channel 0: read<=0 rfd 10 len 0
> > 	debug1: channel 0: read failed
> > 	debug1: channel 0: input open -> drain
> > 	debug1: channel 0: close_read
> > 	debug1: channel 0: input: no drain shortcut
> > 	debug1: channel 0: ibuf empty
> > 	debug1: channel 0: input drain -> closed
> > 	debug1: channel 0: send eof
> > 
> 
> Here is what I get with the latest patch and your debug patch
> installed. There is a SIGCHLD, but only after the very beginning:
> 
> ssh -v -v -v localhost dd if=/bin/bash bs=65536 count=2 | ( sleep 10 ; md5sum )

i need the server side LOG message!