tobias@hpda.UUCP (Jay Tobias) (02/26/86)
I've encountered a problem with ksh running on 4.2BSD. Every once in a while, about once or twice a week, the shell will hang upon exiting from a command. Echoing and ctl-T kernel data are still alive, but ctl-C, ctl-D, and ctl-Z are mereley echoed and have no effect. Does anyone know who supports ksh or if a fix has been reported for this bug? Jay Tobias ..!ucbvax!hpda!hppcgo!tobias
gemini@homxb.UUCP (Rick Richardson) (03/01/86)
[ksh hangs on 4.2BSD] It also hangs about once a week under System 5.2, so I doubt the bug is UNIX OS related!
simon@simon_pc.UUCP (Simon Shapiro) (03/03/86)
In article <1291@homxb.UUCP>, gemini@homxb.UUCP (Rick Richardson) writes: > [ksh hangs on 4.2BSD] > > It also hangs about once a week under System 5.2, so I doubt the bug > is UNIX OS related! I do not know if it is the ksh or not but doing a cat > large.text.file where the input is coming from a PC telecom software, while rnews,etc. is running will crash the port (until re-installation of device drivers) on the AT&T 7300 (SVR3)
latham@bsdpkh.UUCP (Ken Latham) (03/07/86)
In article <1291@homxb.UUCP> gemini@homxb.UUCP (Rick Richardson) writes: >[ksh hangs on 4.2BSD] > >It also hangs about once a week under System 5.2, so I doubt the bug >is UNIX OS related! Before this gets too far.... we're running 5.2 on 3b2s and 3b5s. I personally have NEVER had the Korn shell hang on me! And to my recollection noone else here has had that problem. Ken Latham
josie@poseidon.UUCP (Jack Gross) (03/11/86)
In article <1291@homxb.UUCP> gemini@homxb.UUCP (Rick Richardson) writes: >>[ksh hangs on 4.2BSD] >> >>It also hangs about once a week under System 5.2, so I doubt the bug >>is UNIX OS related! >Before this gets too far.... we're running 5.2 on 3b2s and 3b5s. >I personally have NEVER had the Korn shell hang on me! >And to my recollection noone else here has had that problem. > Ken Latham I also have never heard of this problem. And we have 3B2's, 3B5's, 3B15's and 3B20's. I now people that have ksh on vaxen and unix pc's and it's just fine. Must be that BSD dosen't like useful shells. Jack Gross AT&T Information Systems Lincroft NJ 07738 (201)576-6305
ggs@ulysses.UUCP (Griff Smith) (03/12/86)
> > In article <1291@homxb.UUCP> gemini@homxb.UUCP (Rick Richardson) writes: > >>[ksh hangs on 4.2BSD] > >> > >>It also hangs about once a week under System 5.2, so I doubt the bug > >>is UNIX OS related! > > >Before this gets too far.... we're running 5.2 on 3b2s and 3b5s. > >I personally have NEVER had the Korn shell hang on me! > >And to my recollection noone else here has had that problem. > > > Ken Latham > > I also have never heard of this problem. And we have 3B2's, > 3B5's, 3B15's and 3B20's. I now people that have ksh on vaxen and > unix pc's and it's just fine. Must be that BSD dosen't like > useful shells. > > > > > Jack Gross > AT&T Information Systems > Lincroft NJ 07738 > (201)576-6305 Ksh gets along fine with BSD. It is developed on a mixture of Apollo work stations, 4.2BSD VAXen, a CCI POWER 6/32 (nice machine, about the speed of a DEC 8650) and a few 3B20s. Some versions of ksh have had a rare job control race; the symptom is that the shell mis-manages a job's process group when a job suspends itself, and the terminal seems to hang. It has happened to me a few times on the POWER 6/32, which is a fast (about 5 MIPS) processor; maybe once on a VAX in two years. The fix, when it happens, is to go to another terminal (or window) and kill the process that is suspended. Dave Korn would be happy to fix this, but it happens so rarely here that it is difficult to catch. If you have solid clues, shell stack traces, etc, send them to ulysses!dgk. Trademarks: VAX -> DEC, POWER 6/32 -> Computer Consoles Inc, 3B -> AT&T -- Griff Smith AT&T (Bell Laboratories), Murray Hill Phone: (201) 582-7736 Internet: ggs@ulysses.uucp UUCP: ulysses!ggs ( {allegra|ihnp4}!ulysses!ggs )
gwyn@brl-smoke.ARPA (Doug Gwyn ) (03/15/86)
>>>[ksh hangs on 4.2BSD] >>> >>>It also hangs about once a week under System 5.2, so I doubt the bug >>>is UNIX OS related! > >>Before this gets too far.... we're running 5.2 on 3b2s and 3b5s. >>I personally have NEVER had the Korn shell hang on me! >>And to my recollection noone else here has had that problem. > > I also have never heard of this problem. And we have 3B2's, >3B5's, 3B15's and 3B20's. I now people that have ksh on vaxen and >unix pc's and it's just fine. Must be that BSD dosen't like >useful shells. It appears to me to be operator-correlated. Perhaps typing ^Q next time "ksh is hung" would help...