I have a Mini2440 ARM Board, and I have put a base Debian 6.0 system on it using
I have used
tmux to run several processes in defferent windows from
/etc/rc.local. I connect to the board using its serial port and an inittab entry to run
getty on that port. I use
picocom as serial communicator.
When root logs in,
~/.bashrc attaches him to the already running tmux server, and processes can be easily monitored. the actual command is
exec tmux attach-session -t "main". tmux runs with default config.
Everything works, except one of the processes (a shell script around
pppd) does not receive Ctrlc from terminal, while other processes do. Also Ctrl\ works. also
kill -INT <pppd_pid> works, but
kill -INT <shellscript_pid> does not.
I really need Ctrlc to work. What is wrong with this setup?
here is the output of
stty -a in the shell script, right before
speed 38400 baud; rows 23; columns 80; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd cs8 -hupcl -cstopb cread -clocal -crtscts -ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke
since it's just
pppd process that has this issue, I think it has something to do with it or its configuration, but when I run
pppd outside of tmux, Ctrl-C works.
pppd runs with
nodetach option, so it stays in terminal foreground.
I also tested it on my dev machine (debian 6.0 on amd64) with the same results.