Hi folks, I've been using uucp for years with no trouble until just recently. (like within the last week or so). When trying to use the serial port either to login to the directly attached host (null-modem cable) (via cu(1) or minicom) or use uucp to copy files between the hosts, I get an access denied error. Selinux is disabled (yes I checked /etc/selinux/config). minicom will work if I run it as root; cu fails regardless of whether I run it as a user or root. What's really strange is cu(1) will start working if I strace cu (while running as root): <startlog> 71> cu -l /dev/ttyS1 -s 115200 cu: /dev/ttyS1: Line in use 72> su Password: # cu -l /dev/ttyS1 -s 115200 cu: /dev/ttyS1: Line in use # strace /usr/bin/cu -l /dev/ttyS1 -s 115200 2> /tmp/foo # echo $? 0 [ Note: /tmp/foo shows same "Line in use" error] # strace -f /usr/bin/cu -l /dev/ttyS1 -s 115200 2> /dev/null Connected. login: ~[fubar]. Disconnected. # # uname -a Linux fubar 2.6.10-1.766_FC3smp #1 SMP Wed Feb 9 23:21:37 EST 2005 i686 i686i386 GNU/Linux # </startlog> What's interesting is cu fails when traced w/o following children, but succeeds when I trace the child processes (-f). Strange.. Any suggestions? TIA.
