jmg@cernvax.UUCP (john gerard) (11/24/89)
We are trying to run a LAT service through a DS3100 on a lot of ttys. We have configured 64 ttys with MAKEDEV, and we use ttys from tty04 for a lat/telnet service (actually a lat/tn3270 service). So far, so good. If we configure too many of these ttys in the /etc/ttys file then at some time the system goes bananas. Shells get continuously created and destroyed (the lat/telnet service program calls in a shell script), zombies abound, the CPU is 100% busy etc. etc. Currently all is fine with ttys from tty04 to tty40 inclusive. However, if I add another 10 or so in /etc/ttys then the bananas reappear. Maybe it is the configuration, but I don't think so: we reconfigured with higher limits today but the problem is just the same. I recall that some time ago someone talked about limitations on the number of ttys per each multiple LAT service. This was referring (I think) to Ultrix 3.0: we have now Ultrix 3.1 and also a set of patches (not yet applied, because we are not sure whether they would help or hinder) but we cannot see any relevant information. Also, the previous posting (from George Robbins) did not specify a numerical limit. Has anyone an update, or (even better) a fix for this problem? Mike Gerard ps. Does anyone else note that when a DECterm VT300 window starts up with a host status line enabled this line cannot be used? We have to disable it then re-enable it. Applies also to VMS DECwindows. -- _ _ o | __ | jmg@cernvax.uucp | | | | _ / \ _ __ _ __ _| jmg@cernvax.bitnet | | | | |_) /_) | __/_) | (___\ | (_/ | J. M. Gerard, Div. DD, CERN, | | |_|_| \_/\___ \__/ \___| (_|_| \_|_ 1211 Geneva 23, Switzerland