can't foreground job (Suspended (tty input))

[Bill McGonigle]

Here's a strange job control problem.  I don't understand what the  
root cause was.  The original command was:

   sudo emacs -nw /etc/yum.repos.d/rpmforge.repo

and after backgrounding it (ctrl-z) I couldn't foreground it again.   
I do this all the time normally, but obviously something was  
different here.

Anybody see what happened?:

-----
[bfccomputing at foo ~]$ jobs
[1]  + Suspended (tty input)         sudo emacs -nw /etc/yum.repos.d/ 
rpmforge.repo

[bfccomputing at foo ~]$ kill %1
%1: Operation not permitted

[bfccomputing at foo ~]$ sudo kill %1
kill: can't find process "%1"
[1]  + Suspended (tty input)         sudo emacs -nw /etc/yum.repos.d/ 
rpmforge.repo

[bfccomputing at foo ~]$ ps
   PID TTY          TIME CMD
6138 pts/0    00:00:00 tcsh
6382 pts/0    00:00:00 ps

[bfccomputing at foo ~]$ ps ax | grep sudo
6405 pts/0    S+     0:00 grep sudo

[bfccomputing at foo ~]$ ps ax | grep emacs
6270 pts/0    T      0:00 /usr/sbin/sesh /usr/bin/emacs -nw /etc/ 
yum.repos.d/rpmforge.repo
6271 pts/0    T      0:00 /usr/bin/emacs-x -nw /etc/yum.repos.d/ 
rpmforge.repo
6425 pts/0    R+     0:00 grep emacs

[bfccomputing at foo ~]$ kill 6270
6270: Operation not permitted

[bfccomputing at foo ~]$ ps aux | grep emacs
root      6270  0.0  0.0   1404   284 pts/0    T    13:08   0:00 /usr/ 
sbin/sesh /usr/bin/emacs -nw /etc/yum.repos.d/rpmforge.repo
root      6271  0.1  0.1  12972  6320 pts/0    T    13:08   0:00 /usr/ 
bin/emacs-x -nw /etc/yum.repos.d/rpmforge.repo
500       6565  0.0  0.0   3776   688 pts/0    S+   13:10   0:00 grep  
emacs

[bfccomputing at foo ~]$ sudo kill 6270

[bfccomputing at foo ~]$ ps aux | grep emacs
root      6270  0.0  0.0   1404   284 pts/0    T    13:08   0:00 /usr/ 
sbin/sesh /usr/bin/emacs -nw /etc/yum.repos.d/rpmforge.repo
root      6271  0.1  0.1  12972  6320 pts/0    T    13:08   0:00 /usr/ 
bin/emacs-x -nw /etc/yum.repos.d/rpmforge.repo
500       6578  0.0  0.0   3772   668 pts/0    R+   13:10   0:00 grep  
emacs

[bfccomputing at foo ~]$ sudo kill 6270 6271

[bfccomputing at foo ~]$ sudo kill -9 6270 6271
[1]  + Killed                        sudo emacs -nw /etc/yum.repos.d/ 
rpmforge.repo

[bfccomputing at foo ~]$ ps aux | grep emacs
500       6637  0.0  0.0   3772   680 pts/0    R+   13:10   0:00 grep  
emacs
------

Not a big deal, but there's a whole in my mind about job control  
here.  That could be about how the hand-off from sudo to sesh happens.

-Bill

-----
Bill McGonigle, Owner           Work: 603.448.4440
BFC Computing, LLC              Home: 603.448.1668
bill at bfccomputing.com           Cell: 603.252.2606
http://www.bfccomputing.com/    Page: 603.442.1833
Blog: http://blog.bfccomputing.com/
VCard: http://bfccomputing.com/vcard/bill.vcf