info-3b2@lamc (Info-3b2 Mailing List) (10/22/88)
Info-3b2 Digest, Number 29 Friday, October 21st 1988 Today's Topics: Re: Info-3b2 Digest, Number 26 Re: various 3B2 stuff Delays ---------------------------------------------------------------------- Subject: Re: Info-3b2 Digest, Number 26 Date: 21 Oct 88 04:18:17 GMT From: !les@chinet.chi.il.us In article <340@mccc.UUCP> pjh@mccc.UUCP (Pete Holsberg) writes: > >I've run into the problem that rn won't work over a STARlan network >also. I can invoke it and it shows the first screen, but then it >freezes. Anyone have a clue or a fix? Vnews and readnews don't seem to >have this problems. I ran across this problem with GNU emacs also. Starlan on the 3B2 is a STREAMS device and if a non-blocking read is done by setting O_NDELAY if no data is present the read will return -1 where a tty device will return 0 (this is true even when the pseudo-tty emulator is pushed on the stream by the login mechanism). Check for places that take the value returned from read() as the number of characters read. The quick fix is to adjust any negative number to 0. The right thing to do would be to check errno on a negative return and do something appropriate. Les Mikesell ------------------------------ Date: Fri, 21 Oct 88 17:54:10 BST Subject: Re: various 3B2 stuff From: hoptoad!quaduk!graham (Graham Glen) > > * Does anybody know for *certain* that the idtools software > will not format a drive with > 1024 cylinders? > Well, purely by coincedance, I today received a piece of mail from someone who is ex-Olivetti (AT&T distributor over here), he is a person who knows what he is talking about, so here's what he had to say: > From: mikep@xisl1 (Mike Pellatt) > > Graham, > Saw your posting on the net about formatting 3b2 drives beyond > 1024 cylinders. Unfortunately, the problem is in the hardware, not the > devtools (or its successor) program. 1024 cylinders is 10 bits (if my > maths is right..). > If my memory serves me right (!!) the HD controller will support > more cylinders - the limitation's in the registers around it. Much like > the IBM PC - after all, who could POSSIBLY need more than 140MB of disk > storage ?? (Well, that's what they thought in the early 80's). > > -- > Mike Pellatt, Director, Xi Software Ltd., 47, Cedarwood Drive, St. Albans, > Herts., AL4 0DN, England. Tel- (+44) 727 57267 Home Tel- (+44) 1 394 1080 > Car phone- (+44) 836 535861 Fax- (+44) 727 42199 > Tlx- 265451 attn: 74:SKK279 BT Gold- 74:SKK279 uucp- xisl!mikep > We had been discussing this in the office here, and came to the conclusion that the 10 bits was probably highly significant, but couldn't fathom out why. Graham ------------------------------ Date: Fri, 21 Oct 88 14:15:47 edt From: len@netsys.COM (Len Rose) Subject: Delays Those people whose routes go through rutgers will be experiencing some delays getting the last 2-3 messages from info-3b2. It seems their incoming mux is on the blink.. We have not been able to sustain a login for the last 2 days. An explanation. -- Len Rose - Netsys,Inc. len@ames.arc.nasa.gov or len@netsys.com ------------------------------------- To join this group or have your thoughts in the next issue, please send electronic mail to Ken Davis at the following address; {pacbell,netsys,hoptoad,well}!lamc!info-3b2-request The views expressed in Info-3b2 Digest are those of the individual authors only. ********************* End of Info-3b2 Digest *********************