Path: news.mitre.org!blanket.mitre.org!philabs!newsjunkie.ans.net!newsfeeds.ans.net!portc02.blue.aol.com!news.sprintisp.com!sprintisp!news-peer-west.sprintlink.net!news-peer.sprintlink.net!news-peer-east.sprintlink.net!news.sprintlink.net!Sprint!sunqbc.risq.qc.ca!streamer1.cleveland.iagnet.net!iagnet.net!newsfeed.internetmci.com!164.67.42.145!awabi.library.ucla.edu!132.239.254.208!ihnp4.ucsd.edu!mvb.saic.com!info-vax From: "GWDVMS::MOELLER" Newsgroups: comp.os.vms Subject: RE: Brag Message-ID: <46495398@MVB.SAIC.COM> Date: Wed, 5 Nov 1997 20:58:06 +0100 Organization: Info-Vax<==>Comp.Os.Vms Gateway X-Gateway-Source-Info: Mailing List Lines: 100 > Apropos of nothing, I just impressed the heck out of myself and had to > tell somebody who would be capable of APPRECIATING it. I apologize for > the waste of bandwidth, but... jeez! :-) >[...] Appreciated. There have been INFO-VAX postings on that subject in the distant past - find two examples below :-) Wolfgang J. Moeller, Tel. +49 551 2011516 or -510, moeller@gwdvms.dnet.gwdg.de GWDG, D-37077 Goettingen, F.R.Germany | Disclaimer: No claim intended! ----- ----- ================================================================================ | | From: GWDGV1::MOELLER 10-MAR-1989 20:18 | To: GWDGV2::"info-vax@kl.sri.com",MOELLER | CC: | Subj: hang after subprocess LOGOUT | | Every now and then, I SPAWN and do all sorts of stuff in a subprocess. | When I finally LOGOUT from the subprocess, my main process hangs, i.e. | it just replies to Control-Y, but does not show a $-prompt. | This is VMS V4.7. | | When this occurs, there are only 2 remedies: from another terminal, | I can either STOP the whole job, or fiddle around with the DCL$ATTACH | mailbox (first write a %x00000001, then read it) which somehow awakens | the original job. | | My problem is: I cannot reproduce the problem, it tends to occur only | after some hours' work. | | Does that sound familiar to someone? | Thanks in advance for your hints, | | Wolfgang J. Moeller, GWDG, D-3400 Goettingen, F.R.Germany | Disclaimer ... | Bitnet/Earn: U0012@DGOGWDG5 Phone: +49 551 201516 | No claim intended ... | Date: Mon, 31 Aug 92 11:22:16 -0500 | Reply-To: Hank Skelton | Sender: Info Vax | From: Hank Skelton | Subject: Re: hang after subprocess LOGOUT | Comments: To: INFO-VAX@SRI.COM | To: Multiple recipients of | | | > > Every now and then, I SPAWN and do all sorts of stuff in a subprocess. | > > When I finally LOGOUT from the subprocess, my main process hangs, i.e. | > > it just replies to Control-Y, but does not show a $-prompt. | > > This is VMS V4.7 [thru 5.4-3]. | > > | > > When this occurs, there are only 2 remedies: from another terminal, | > > I can either STOP the whole job, or fiddle around with the DCL$ATTACH | > > mailbox (first write a %x00000001, then read it) which somehow awakens | > > the original job. | > > | > > My problem is: I cannot reproduce the problem, it tends to occur only | > > after some hours' work. | > > | > > Does that sound familiar to someone? | > | > There is a DSNlink article which describes this behavior in almost every | > recent version of VMS (4.n through 5.5-1), titled "Parent Process Remains | > Dormant After SPAWNed Subprocess Terminates". | | In case DSNlink is not available in Germany, here are the last few lines | of the article: | | >WORKAROUND: | > | >In some instances, writing a 16 byte message and then reading it | >alleviates the hung condition: | > | >$ OPEN /READ/WRITE mba _MBAxxxx ! the associated mailbox | >$ WRITE mba F$FAO("!16* ") | >$ READ /TIME=0 mba record | >$ CLOSE mba | > | >DIGITAL RESPONSE: | > | >This problem has been reported to VMS Engineering. | | Big help, huh? | | Hank Skelton - Meharry Medical College | Computer Center, Nashville, TN 37208 | BITNET: SKELTON@MMC 615/327-6289 | INTERNET: SKELTON%MMC@CTRVAX.VANDERBILT.EDU | "That's my opinion - oughtta be yours" | ================================================================================ Wolfgang J. Moeller, Tel. +49 551 2011516 or -510, moeller@gwdvms.dnet.gwdg.de GWDG, D-37077 Goettingen, F.R.Germany | Disclaimer: No claim intended! ----- -----