534 lines
21 KiB
Plaintext
534 lines
21 KiB
Plaintext
Subject: Linux-Development Digest #562
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From: Digestifier <Linux-Development-Request@senator-bedfellow.MIT.EDU>
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To: Linux-Development@senator-bedfellow.MIT.EDU
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Reply-To: Linux-Development@senator-bedfellow.MIT.EDU
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Date: Fri, 18 Mar 94 21:13:12 EST
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Linux-Development Digest #562, Volume #1 Fri, 18 Mar 94 21:13:12 EST
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Contents:
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Re: Real-Time Linux and a/d device drivers (David G. Boney)
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Re: Problem while printing (Jens Frank 29206029)
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Er ... i need help on read-write sys_calls (DE PRETER MARC)
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Re: YP or NIS for linux? (Frank Lofaro)
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Problem with V1.0 Ne*000 probe (Ray Bellis)
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Re: Specialix Driver Round 2 (From specialix) (Craig Milo Rogers)
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will the new syquest 270Mb drive be support by linux? (John Voth)
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Slackware installs in msdos filesystem, was: fdisk that does not destroy data (Andy Burgess)
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Bug in NFS client (Eloy Domingos)
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Re: 127.x.x.x (was Re: UDP report card) (Pekka Pessi)
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D-Link DE-200 problems (Antti Miettinen)
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Re: Real-Time Linux and a/d device drivers (Greg McGary)
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Porting code that uses sigvec/sigstack (Gord Vreugdenhil)
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Re: notebook doesn't warn when batteries are empty (Billy N. Patton)
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STRAW POLL RESULT: Linux groups automonitoring (Ron "Asbestos" Dippold)
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----------------------------------------------------------------------------
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From: dboney@cs.ttu.edu (David G. Boney)
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Subject: Re: Real-Time Linux and a/d device drivers
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Reply-To: dboney@cs.ttu.edu
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Date: Fri, 18 Mar 94 07:54:38 GMT
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In article <2ma2rj$22a@genesis.ait.psu.edu>, donadio@mxd120.rh.psu.edu (Matthew Donadio) writes:
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|> Scott McClung (mcclung@squire.chinalake.navy.mil) wrote:
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|> : Have I gone off the deep end to even ask these questions? I doubt that
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|> : many of us need a RTOS, but it would be neat anyway...
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|>
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|> The people that neet real-time probably also have the money for
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|> something like LynxOS or QNX and also have the money for a better
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|> architecture like VME....
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|>
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Well seeing I was the one who posted the original artical I would like to
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saw I don't have the money for sometime like LynxOS or QNX. Nor do I have the money
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for another architecture.
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In addition I have a TON of software I am using in my project that hasn't been ported
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to these other o/s's . You know it's kind of funny, but I am finding very esoteric
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software not likely to be used by others has already been ported to Linux.
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Anyway I have not got a single positive response to my question about drivers for a/d
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boards. Actually I am looking at using my sound blaster for real-time control. I have
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a sound blaster 16 with the asp chip. I was thinking for downloading my control
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program to the board and let it do all the realtime stuff. I need the get the specs to
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see if this would work. Plus it would be far cheaper that most a/d boards. The a/d
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board that I currently own, a National Instruments AT-MIO-16, cost roughly $1000.00.
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I guess I would need the see the specs for the front end amplifiers to see how noisy
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they are, what sort of programmable gain there is, harware filtering, coupleing, ...
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etc. But for low frequency work with 2 channel in and 2 channel out this should be a
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cheap solution. In addition if you could run more that I card, it would be great!
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Any ideas?
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|> --
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|> Beaker aka Matt Donadio | Life is short, --- __ o __~o __ o
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|> donadio@mxd120.rh.psu.edu | ride like ---- _`\<, _`\<, _`\<,
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|> --- Penn State Cycling ---| the wind. --- ( )/( ) ( )/( ) ( )/( )
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--
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Sincerely,
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David G. Boney
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American Heart Association Medical Student Research Fellow
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Texas Tech School of Medicine
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dboney@cs.ttu.edu Texas Tech University
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Ph. 806-742-1191 Department of Computer Science
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Fax 806-742-3519 Lubbock, Tx. 79409 USA
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------------------------------
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From: frank@namu05.gwdg.de (Jens Frank 29206029)
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Subject: Re: Problem while printing
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Date: 18 Mar 1994 10:23:24 GMT
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I wrote :
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> I was printing some bigger file with 'cat foo>/dev/lp1'. Then some program, I
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> suppose sync, accessed the hard drive. Instantly the printer got confused,
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> turned off his status display, and refused any cooperation until I turned it
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> off. This behaviour was reproducable.
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> The printer-port and the IDE-controller share the same board, one of these
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> All-In-One-IO-Cards. Does anyone know
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> a) Why this happens ?
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> and even more important
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> b) How to fix it ?
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Since our NEWS-server was down for some days I didn't get the answers (if any)
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could someone be so kind and send them via E-Mail ?
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Thanks
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============================================================================
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jens frank, Goettingen, Germany frank@namu01.gwdg.de
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------------------------------
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From: mdepretr@vub.ac.be (DE PRETER MARC)
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Subject: Er ... i need help on read-write sys_calls
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Date: 17 Mar 1994 13:29:59 GMT
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Well, i need to study a piece of the kernel code : i have to compare
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the read-write sys calls in the linux with those of a real SVR5
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(i know, Linux is a real SVR5, but i mean another version)
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So, if anybody has documentations (SOURCES, and others, ..), it would be
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really nice to send it to me (btw, Bach's book hasn't the write sys call)
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No matter if those docs are in french or in english, or C!!!!!
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You're welcome in my mail box :)
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Hello from Belgium !!!!!
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------------------------------
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From: ftlofaro@unlv.edu (Frank Lofaro)
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Subject: Re: YP or NIS for linux?
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Date: Wed, 16 Mar 94 21:58:29 GMT
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In article <1994Mar15.040917.11083@rpp386> jfh@rpp386.cactus.org (John F. Haugh II) writes:
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>In article <2lv16t$7nk@celsius.ifm.liu.se> peter@ifm.liu.se (Peter Eriksson) writes:
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>>And what do you do if the DBM databases are corrupt and causes
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>>/bin/login to core dump? (Atleast one version of GDBM had the
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>>nasty habit of calling abort() if it detected something wrong
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>>with its database files).
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>>
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>>One can always find situations where there will be problems
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>>and no way of doing things (DBM, YP, NIS+, DNS/Hesiod) will
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>>ever be perfect.
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>
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>Problems such as this are readily solvable in the permanent
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>sense. When a YP server goes down, you can't reboot it and
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>expect it to stay up forever.
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>
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>I don't use YP on any system were availablity is an issue. I
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>don't even rely on AFS or NFS on critical systems. There is
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>no substitute for having the data right here, right now.
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>--
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If you are lucky, you'll never need to rely on AFS.
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Its reliability just plain sucks!
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------------------------------
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From: rpb@psy.ox.ac.uk (Ray Bellis)
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Subject: Problem with V1.0 Ne*000 probe
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Date: 17 Mar 1994 14:16:08 GMT
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As someone else has already mentioned, there seems to be a
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problem of some sort with the NE*000 probe. My system worked
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fine with 0.99pl15j but it won't work with the new v1.0 :-(
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It just hangs immediately after the `Net2 debugged' messages.
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[I have the umsdos patches installed as well, if that makes any
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difference].
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Anyone have any idea how to fix this?
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Thanks,
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Ray.
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--
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==============================================================================
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R. P. Bellis E-Mail: <rpb@psy.ox.ac.uk>
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Dept. of Experimental Psychology Whois: (RB83)
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University of Oxford Tel: +44 865 271419
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South Parks Road Fax: +44 865 310447
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Oxford OX1 3UD
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==============================================================================
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------------------------------
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From: rogers@drax.isi.edu (Craig Milo Rogers)
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Subject: Re: Specialix Driver Round 2 (From specialix)
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Date: 16 Mar 1994 10:10:22 -0800
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In article <DMW.94Mar15101043@prism1.prism1.com> dmw@prism1.prism1.com (David Wright) writes:
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> Very clearly the portion that actually "hooks into" the OS would be
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>covered by the GPL, and not one of the developers has said they have a
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>problem with that.
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Not true. On 28 Feb 94, in message <robertl.762402975@amsg>,
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Robert Lipe, head code-layer for Arnet (his phrase), a "ports board"
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company, speaking unofficially but apparently referring to some of his
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company's products, said:
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"As proprietary as these executables is the
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interface as to how a programmer talks to them."
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In context, "executables" refers to the onboard code, and
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"interface" is the hardware interface used by the host computer's
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operating system device drivers. Thus, since they do not wish to
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reveal the host-side interface, a GPLed OS device driver is
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unacceptable to them.
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If you are a latecomer to this thread, I might be able to
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email you a copy of the messages that I've saved from it.
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Craig Milo Rogers
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------------------------------
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From: jdv@ee.ualberta.ca (John Voth)
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Subject: will the new syquest 270Mb drive be support by linux?
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Date: 17 Mar 1994 01:33:47 GMT
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Hello Netters!
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I have noticed that SyQuest has released a new version of their 3.5"
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removable media hard drive. Does anyone know if this unit is supportable
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already by linux or does anyone think it will require newly written support?
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I am very interested in obtaining one of these units and my linux system
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would benefit greatly with more hard disk space. My drive is presently at
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94% occupancy.
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jdv@bode.ee.ulaberta.ca
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------------------------------
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From: aab@cichlid.com (Andy Burgess)
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Subject: Slackware installs in msdos filesystem, was: fdisk that does not destroy data
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Date: Thu, 17 Mar 1994 01:41:09 GMT
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In <CMnw58.7vt@visual.com> tjj@visual.com (Tom J. Jarmolowski) writes:
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> Hi, I'm getting ready to do a first time install of linux on a
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>currently dos/windows only system, hnece I have to partition my drive.
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The latest slackware release will install in an msdos filesystem with at
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least 20Mb free (if memory serves) so no need to partition if you are
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just trying linux out.
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--
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Andrew A. Burgess Free uucp and SLIP connections
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aab@cichlid.com Email or finger info@cichlid.com
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------------------------------
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From: eloy@paramount.nikhefk.nikhef.nl (Eloy Domingos)
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Subject: Bug in NFS client
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Date: Fri, 18 Mar 1994 12:27:01 GMT
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Hello,
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there is a bug in the NFS client under Linux 1.0 and libc 4.5.24 (I don't
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know where the fault is):
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client> ls -l ha
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-rw------- 1 muts fss/se 0 Mar 18 13:26 ha
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server> chmod 644 ha
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client> ls -l ha
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-rw------- 1 muts fss/se 0 Mar 18 13:26 ha
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Also other modifications are not propagated properly when it is somehow
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in the clients filesystem cache.
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------------------------------
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From: ppessi@snakemail.hut.fi (Pekka Pessi)
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Crossposted-To: comp.protocols.tcp-ip
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Subject: Re: 127.x.x.x (was Re: UDP report card)
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Date: 17 Mar 1994 02:17:55 GMT
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Reply-To: <Pekka.Pessi@hut.fi>
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In article <2m6g6r$ijk@gap.cco.caltech.edu> heathh@lust.ugcs.caltech.edu (Heath I Hunnicutt) writes:
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>>If you don't have a route for 127.x.x.x to the "lo" device, but have a default
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>>route to an ethernet controller, for example, then requests to 127.0.0.1 will
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>>go out the wire just as requests to any other IP address. Until a route is
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>>created to the loopback device, the address 127.x.x.x is an unknown address
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>>just as if _I_ asked for address 192.83.17.1. It would need ARP to resolve it
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>>to a real ethernet address and subsequently the request would go out the
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>>default route.
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>The difference is that the IP layer can make the correct decision not to put
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>anything to 127.* on any external interface. The idea that someone should
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>need to configure their system to not violate the RFCs is ridiculous. There
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>is a large responsibility on the part of the stack to not allow stupid things
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>like sending 127.* out on the net.
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Uhh.. it seems to me that most (if not all) Unix IP implementations
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are based on that ridiculous idea of correct configuration.
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There is nothing in BSD net/2 preventing you from sending packets to
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127.1 to the network. And the BSD is the culprit of this silly idea
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of local net, 127.0.
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I just tested this on two net/2 based systems (namely, OSF 1.3 and
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AmiTCP/IP). Both require you to say "ifconfig lo0 127.1". Both
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send packets to 127.2 happily to default router. SunOS 4.1 and
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HP-UX 9 route 127.2 to default router, too. I guess that they are
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not conforming to RFC 1122.
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--
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Pekka.Pessi@hut.fi
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------------------------------
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From: apm@kikka.hut.fi (Antti Miettinen)
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Crossposted-To: comp.sys.ibm.pc.hardware.networking
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Subject: D-Link DE-200 problems
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Date: 17 Mar 94 15:37:42 GMT
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I would like to find documentation for the D-Link DE-200 ethernet
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card. The manual claims that it is 100% compatible with NE2000 but at
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least Linux ethernet-howto claims otherwise. I am also having problems
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(not with linux, not even with a PC, but with a DE-200) which might be
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caused by incompatibilities.
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Does anyone know who made DE200 spesific patches to linux?
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------------------------------
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From: gkm@tmn.com (Greg McGary)
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Subject: Re: Real-Time Linux and a/d device drivers
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Date: 18 Mar 1994 17:39:01 -0500
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Reply-To: gkm@tmn.com (Greg McGary)
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Yesterday, I wrote:
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| [ ... stuff about the (non)desirability of realtime Linux deleted ... ]
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| It should be noted that preemptability is also a
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| prerequisite for symmetric multiprocessing, which is potentially more
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| interesting to Linux users, but not that much more interesting, since
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| commodity Intel computer systems are uni-processors. If it ever
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| happens that multiprocessors become cheap and widely available, then I
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| think you'll see Linux evolve in this direction, but not otherwise.
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Now that I think about it, if multiprocessors become commodity items,
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Linux won't necessarily want to go the preemptive kernel route. It's
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much easier to implement a multi-processor system (with as many as 3
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or 4 CPUs) using a master-slave arrangement where CPU 0 runs all of
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the kernel code--it owns all the devices and services all system
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calls. The slave CPUs are scheduled to run user code only.
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--
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Greg McGary (703) 729-6217 gkm@tmn.com
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525K East Market Street, #110, Leesburg, Virginia, 22075
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------------------------------
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From: gvreugde@plg.uwaterloo.ca (Gord Vreugdenhil)
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Subject: Porting code that uses sigvec/sigstack
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Date: Fri, 18 Mar 1994 19:42:50 GMT
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I am in the early stages of porting some code that uses
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sigvec/sigstack. I have found the sigaction stuff, but
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I haven't found any feature corresponding to the
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sigstack operations. Before trying to actually figure
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out a rewrite of the original code, I was wondering if
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anyone has any suggestions about Linux features to mimic
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the use of sigstack. If you do, please let me know.
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I would be willing to write up a summary of any useful
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suggestions I receive.
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Thanks.
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Gord Vreugdenhil
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gvreugde@plg.uwaterloo.ca
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------------------------------
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From: bpatton@news.asic.sc.ti.com (Billy N. Patton)
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Subject: Re: notebook doesn't warn when batteries are empty
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Date: Fri, 18 Mar 1994 17:57:06 GMT
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Steffen Neumann (sneumann@TechFak.Uni-Bielefeld.DE) wrote:
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: No solution, but an Idea what happens:
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: Linux puts your notebook into the protected mode and takes control.
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: If your notebook uses a bios routine that checks for low battery,
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: than it is not called anymore during use of linux.
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: (BTW, that happened to me, when the build in virus-checker did not
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: react to lilo boot-block magic, but started to get crazy when installing
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: MSDog...)
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: Steffen
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: --
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: Steffen Neumann Computer science is the dangerous try
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: sneumann@techfak.uni-bielefeld.de to overcome human intelligence
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--
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Dazed and Confused for so long now.
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Billy N. Patton
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bpatton@asic.sc.ti.com
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Texas Instruments, Inc.
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Semiconductor Group
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Application Specific Integrated Circuit (ASIC)
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Hardware Engineering Services
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Dallas Texas
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------------------------------
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Crossposted-To: news.groups,comp.os.linux.announce,comp.os.linux.misc,comp.os.linux.help,comp.os.linux.admin
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From: rdippold@qualcomm.com (Ron "Asbestos" Dippold)
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Subject: STRAW POLL RESULT: Linux groups automonitoring
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Reply-To: rdippold@qualcomm.com (Ron "Asbestos" Dippold)
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Date: Fri, 18 Mar 1994 18:09:35 GMT
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[]
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STRAW POLL RESULTS
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Linux groups automonitoring
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linux automonitoring straw poll results - 491 valid ballots
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Yes No : Group
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---- ---- : -------------------------------------------
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284 189 : comp.os.linux.misc
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315 165 : comp.os.linux.help
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333 146 : comp.os.linux.admin
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317 155 : comp.os.linux.development
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This straw poll had more respondents than 95% of all newsgroup
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votes... As this is a straw poll and I'm just the polltaker, I am not
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even going to try to analyze what the results "mean." I suspect we'll
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see lots of that in news.groups over the next few weeks. However, I
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will note that by Guidelines result methods, both col.admin and
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col.development automonitoring would "pass" if this had been an
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official vote. -- Ron
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This vote was conducted by a neutral third party. For voting
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questions only contact rdippold@qualcomm.com. For questions about the
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proposal contact Ian Jackson <iwj@cam-orl.co.uk>.
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PROPOSAL (Ian)
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[ Ian indicated during the polling period that Subject keywords would
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be acceptable for software that couldn't handle Keywords headers.
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However, I haven't tampered any with the original polling text. -- Ron ]
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I propose to set up an auto-response daemon which will scan the
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newsgroups comp.os.linux.misc, .help, .development and .admin.
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It will send email to the posters of any messages which either
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(a) do not include one of a set or recognised keywords in the
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Keywords line or
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(b) are crossposted between two or more of the groups listed above,
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without a Followup-To header being used to direct followups
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into no more than one of those groups (plus perhaps one or more
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groups outside the comp.os.linux hierarchy).
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The email will be a brief, friendly introduction to the newsgroup in
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question and the hierarchy in general - probably based on Matt Welsh's
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introduction to the comp.os.linux hierarchy and my daily postings in
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comp.os.linux.misc and .help.
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It will say where the FAQs are, why to read them, and where to get
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them.
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It will also say why the message has been sent to the user, and give a
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brief explanation of why Keywords are a good thing and/or why
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crossposting is a bad thing (as appropriate).
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I would determine the set of allowable keywords with assistance from
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the Linux community; I expect the set to change quite frequently, and
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there to be a dozen or two at most.
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The existence of my daemon would be documented in a regular posting to
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the groups (preferably as part of an existing regular posting).
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Note that this proposal will NOT prevent anyone from posting and does
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not involve marking the groups as moderated.
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I hope to be able to provide an email-to-news gateway that will be
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allow users with retarded software to post with Keywords lines.
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RATIONALE (Ian)
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During the recent discussion in news.groups regarding my original
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proposal to moderate col.* using a program, several people suggested
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|
that perhaps many of the "poor" posts do not come from first-time
|
|
posters, and that therefore it would be sufficient to send email to
|
|
posters whose postings did not have one of a set of approved keywords.
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|
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|
Doing so would allow experienced users to start using killfiles to
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read only postings they believe they would find interesting, based on
|
|
keywords, since any users posting without such keywords would be
|
|
informed by the daemon that and why their posting might not get the
|
|
attention they would wish for it.
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Since the Ack List is huge and this is a Straw Poll, I'm just going to
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post it to news.groups as a followup so it won't swap those of you who
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follow the Linux groups via modem. -- Ron
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--
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This statement is in no way not to be not construed as not a disclaimer.
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------------------------------
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** FOR YOUR REFERENCE **
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The service address, to which questions about the list itself and requests
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to be added to or deleted from it should be directed, is:
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|
|
Internet: Linux-Development-Request@NEWS-DIGESTS.MIT.EDU
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|
You can send mail to the entire list (and comp.os.linux.development) via:
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Internet: Linux-Development@NEWS-DIGESTS.MIT.EDU
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Linux may be obtained via one of these FTP sites:
|
|
nic.funet.fi pub/OS/Linux
|
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tsx-11.mit.edu pub/linux
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sunsite.unc.edu pub/Linux
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End of Linux-Development Digest
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******************************
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