Hi,
we found that ksh sometimes triggers fork bomb when it receives SIGTSTP,
reproduced on both latest stable and latest alpha.
Reproducer:
============== create file /root/foo ==============
vi /tmp/bar
echo end
===================================================
$ ksh
# exec /root/foo
when in VI, send TSTP using CTRL-z
and ksh starts forking
$ ps -ef --forest
root 4741 1 0 20:11 pts/0 00:00:00 /root/foo
root 4742 4741 0 20:11 pts/0 00:00:00 \_ /root/foo
root 4743 4742 0 20:11 pts/0 00:00:00 \_ /root/foo
root 4744 4743 0 20:11 pts/0 00:00:00 \_ /root/foo
root 4745 4744 0 20:11 pts/0 00:00:00 \_
...
Let me know if you need more information.
Michal
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