Odd PTY problems

Spirilly (spirilis@mindmeld.dyn.ml.org)
Tue, 9 Jun 1998 13:54:05 -0400 (EDT)


Hi,
I was just experiencing some odd problems while write'ing to a user who was
telnetted into my machine:
"w" showed:
1:47pm up 1:25, 6 users, load average: 0.05, 0.16, 0.22
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty1 12:23pm 5:22 2.75s 2.75s -zsh
root tty2 12:24pm 60.00s 1.58s 1.58s -zsh
root tty3 12:24pm 1:22 2.46s 1.51s telnet damacus
root tty4 12:24pm 1.00s 1.86s 0.25s w
root tty5 1:46pm 3.00s 1.47s 0.12s sh /usr/bin/atl
ryan ttyp1 host-209-214-140 1:34pm 2.00s 1.23s 1.23s -csh

When I went to "write ryan", I wrote a message, and then
I hit CTRL-D, but nothing happened.
I went to another console, and write was in "S" (sleep), so I SIGKILL'ed it, and
when I went to the other console, everything that I had typed into write ryan
had spilled onto the command line--as if the write program was dead and never
read stdin, or was blocked somehow. One time a similar incident occurred, using
2.1.105, only that write processes stayed in "D" (uninterruptable sleep) until
that user logged out. I am using 2.1.105ac-1 right now.

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