592 lines
20 KiB
Plaintext
592 lines
20 KiB
Plaintext
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: Wed, 5 Oct 94 18:13:16 EDT
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Subject: Linux-Development Digest #268
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Linux-Development Digest #268, Volume #2 Wed, 5 Oct 94 18:13:16 EDT
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Contents:
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Problems compiling with gnu CPP (taylor)
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Re: Does linux implement semaphores? (Brian Vinter)
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Re: Korn Shell '93 Now Available from AT&T (Peter Mutsaers)
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Re: ext2fs vs. Berkeley FFS (John Gotts)
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Re: Xircom PCMCIA ethernet support? (Russell Nelson)
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Re: SMail security hole? (Rob Janssen)
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Using Andrew to create and edit HTML docs (Elmer R. Masters)
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writing a file system (John West)
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Re: BSD/386 vs. Linux Performance (Erik Blass)
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Re: BSD/386 vs. Linux Performance (Erik Blass)
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Fortran on Linux?? (Barry Sohl)
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Re: Linux killed my floppy drive! (Haktan Bulut)
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What is ELF ?? (Haktan Bulut)
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Re: Linux killed my floppy drive! (Giuseppe Zanetti)
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MuPAD: where ?? (Angelo Haritsis)
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Re: ext2fs vs. Berkeley FFS (Louis-D. Dubeau)
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WANTED: Source to Telnet, FTP (Mike John Hartman)
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Re: Report on gcc with P5 optimizations (Shaune Beattie)
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Status of Linux and Distributions security (Daniel L. Marks)
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linux is great (Supat Faarungsang)
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NCR 810 problems. (NCR53c7xx_reset is NOP) (Jakob Sandgren)
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----------------------------------------------------------------------------
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From: pdt@unix.brighton.ac.uk (taylor)
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Subject: Problems compiling with gnu CPP
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Date: Wed, 5 Oct 1994 10:59:23 GMT
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Has anyone had problems compiling files that include both stdio.h and
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iostream.h using gcc 2.5.8? If I try it tells me that two functions
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are being redefined:
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__underflow and __overflow
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These are defined in both libio.h (included by stdio.h) and
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streambuf.h (included by iostream.h). Both have a different parameters
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so that would be ok in C++ as they would be overloaded BUT they
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are defined as extern "C" ... so the compiler thinks they are the same
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function. This is a problem as some of the software I have includes these
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two files and hence they won't compile.
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I also have problems compiling the files generated by uib (the ParcPlace
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interface builder). This throws out the same errors (functions attempting
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to be redefined illegally) but this time I can see no problem as they
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are not extern "C" functions and have different parameters and so
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should be overloaded perfectly legally.
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Has anyone else had these problems?
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Paul Taylor
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University of Brighton
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------------------------------
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From: vinter@cs.uit.no (Brian Vinter)
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Subject: Re: Does linux implement semaphores?
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Date: Wed, 5 Oct 1994 11:47:10 GMT
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In article <19941005.095728.519836.NETNEWS@ESOC> kkeyte@esoc.bitnet writes:
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>In article D93@IX.DE, hm@ix.de (Harald Milz) writes:
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>>In comp.os.linux.development, Neal Patrick Howland (nhowland@ksu.ksu.edu) wrote:
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>>> I was wondering in the standard linux develpment packages implemented
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>>> a semaphore synchronization call. If not, how do you synchronize two
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>>> processes to keep them from entering their critical sections at the same
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>>> time?
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>>
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>>Using named pipes is an elegant method to achieve this.
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>
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>I always find semaphores useful for this!
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>
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>Yes, Linux DOES provide semaphores.
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>
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I would not recomend pipes for syncronization as you (at least I) runs out
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of fd's pretty fast whereas semaphores usally support 64K or in that range.
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Also there may be speed differences, I havn't tried it with Linux
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(actually my Linux is down as my st01 controller looses info and corrupts
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the fs, I'll bye a desent SCSI later - but if you have a posible solution
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please let me know) but on my HP735 (well not my own but ...) I get
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15K context switches using pipes and 26K using semaphores. If anybody would
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do the test on a desent Linux box mail me and I'll send the source
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(_very_ small).
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Brian
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--
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Vinter 8>}
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________________________________________________________________
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| Brian Vinter | Email vinter@cs.uit.no |
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| Department of Computer Science | Phone (+47) 77 64 52 52 |
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| University of Tromsoe | Disclaimer: |
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| N-9037 Tromsoe, NORWAY | Real men do it in parallel!|
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________________________________________________________________
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------------------------------
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From: plm@atcmp.nl (Peter Mutsaers)
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Subject: Re: Korn Shell '93 Now Available from AT&T
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Date: Wed, 5 Oct 1994 10:38:23 GMT
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>> On 01 Oct 1994 21:23:54 GMT, djohnson@arnold.ucsd.edu (Darin
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>> Johnson) said:
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>> How about coprocess communication (print/read -p ...), the
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>> "select" statement, builtin arithmetic, a command line editor
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>> which will drop you into vi/emacs, and parameter attributes
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>> (typeset -LZ ...), to name a few?
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DJ> This is enough to warrant $99? You can pay someone that amount
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DJ> to add it to bash or zsh.
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DJ> Also - "fc" under both bash and zsh pops up an editor for me.
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DJ> I find bash and zsh much nicer for interactive use.
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Indeed; and interactive use is the most important for a shell. When
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it comes to 'advanced' programming features: stick to the good old
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bourne shell so that your scripts will run everywhere. If you really
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need more advanced facilities then you'd better use a 'real'
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programming language (such as perl or C etc.).
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--
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Peter Mutsaers | AT Computing bv, P.O. Box 1428,
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plm@atcmp.nl | 6501 BK Nijmegen, The Netherlands
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tel. work: +31 (0)80 527248 |
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tel. home: +31 (0)3405 71093 | "... En..., doet ie het al?"
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------------------------------
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From: john@jgotts.ccs.itd.umich.edu (John Gotts)
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Subject: Re: ext2fs vs. Berkeley FFS
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Date: 4 Oct 1994 19:27:56 GMT
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I just thought I would mention that there is some information on ext2fs (in
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postscript form, I believe) in the defrag-0.6.tar.gz package.
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--
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John Gotts (jgotts@umich.edu) 73 de N8QDW URL: http://www.umich.edu/~jgotts
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GE -d+ H s+: g-- p? !au a-- w+ v C++++ UL++++ P+>++ L++ 3- E--- N+++ K- !W M--
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V-- -po+(---) Y+ t+ 5 j+ R- G? tv b+ D B- e+ u--- h f+ r n- y? <Linux rules!>
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------------------------------
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From: nelson@crynwr.crynwr.com (Russell Nelson)
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Subject: Re: Xircom PCMCIA ethernet support?
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Date: 05 Oct 1994 14:10:48 GMT
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In article <36nuon$74f@senator-bedfellow.MIT.EDU> dthumim@ATHENA.MIT.EDU (Daniel J Thumim) writes:
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Is there any chance of getting support for a Xircom CE10 PCMCIA
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ethernet adapter? I heard of problems with the parallel port
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adapters, they don't give out the programming info. Is this true
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of the PCMCIA adapter too?
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Yes.
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Now that there are kernel loadable modules, and it is possible to
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develop drivers without releasing source, does that change things?
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No. Are you going to run a driver that some bozo wrote, that you
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can't get source code for? Do you plan to put yourself at the mercy
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of one company for support? Seems like a bad idea to me.
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If anyone has had direct contact with Xircom and can point me to a
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contact over there, that would also be helpful.
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Why bother? They've been unhelpful for years. I've spoken to the
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President of the company, and he has a specific philosophical problem
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with free software. That's his right, but it's our right to ignore
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his company's products.
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--
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-russ <nelson@crynwr.com> http://www.crynwr.com/crynwr/nelson.html
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Crynwr Software | Crynwr Software sells packet driver support | ask4 PGP key
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11 Grant St. | +1 315 268 1925 (9201 FAX) | What is thee doing about it?
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Potsdam, NY 13676 | LPF member - ask me about the harm software patents do.
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------------------------------
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Crossposted-To: comp.os.linux.help
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From: rob@pe1chl.ampr.org (Rob Janssen)
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Subject: Re: SMail security hole?
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Reply-To: pe1chl@rabo.nl
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Date: Tue, 4 Oct 1994 16:03:01 GMT
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In <36ij36$r21@greathan.apana.org.au> herbert@greathan.apana.org.au (Herbert Xu) writes:
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>I am using sendmail 8.6.9 and don't have this problem. Another reason to
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>switch over to sendmail I suppose.
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Aiieee... you won't believe how many problems similar to this have already
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been found and solved in "sendmail"...
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What makes you believe that the last one found was the last one that exists?
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(certainly not the track record of this program...)
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Rob
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--
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=========================================================================
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| Rob Janssen | AMPRnet: rob@pe1chl.ampr.org |
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| e-mail: pe1chl@rabo.nl | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU |
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=========================================================================
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------------------------------
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From: ermaster@syru42-070.syr.edu (Elmer R. Masters)
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Crossposted-To: comp.os.linux.questions,comp.os.linux.help
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Subject: Using Andrew to create and edit HTML docs
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Date: Tue, 4 Oct 1994 05:21:12 UNDEFINED
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Greetings.
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I am attempting to use the Andrew wp package to create and edit HTML documents
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for my WWW server. I am using the latest version of Andrew. Whenever I
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attempt to create or edit a link of any type, the program crashes and goes
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away. There is no indication of what may be going wrong. Is anyone out there
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using this function of Andrew? If so can you offer any advice?
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Thanks in advance,
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Elmer R. Masters
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Online/Reference Librarian
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Barclay Law Library
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Syracuse University
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ermaster@syru42-070.syr.edu
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------------------------------
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From: john@ucc.gu.uwa.edu.au (John West)
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Subject: writing a file system
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Date: 4 Oct 1994 09:03:36 GMT
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Anyone got any wise words? I'd like to write a fs for Linux, partly for
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the experience, and partly because I think a compressing fs would be a
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Good Thing. I've looked at the KHG, but it doesn't seem to say anything
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about it.
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I could always read the source for one of the standard ones, and figure it
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out from there, but this doesn't seem a terribly reliable way of doing
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things.
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John West
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------------------------------
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From: root@i486.gondor.sub.org (Erik Blass )
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Subject: Re: BSD/386 vs. Linux Performance
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Date: Thu, 29 Sep 1994 20:27:45 GMT
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Hi !
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Steven Pritchard (spritcha@nyx10.cs.du.edu) wrote:
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: mikenel@netcom.com (Michael Nelson) writes:
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: >Anyone have any performance stats comparing BSD/386 (BSD/OS) with Linux?
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: >Network, disk, and overall...
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: Check out September's "Open Computing" p. 83. The article sort-of
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: compares BSD/386 and Linux to each other and to commercial unices.
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Aahh....I am from Germany and can't read this magazine...:-( would you
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be so kind and post the results ? (Including the ones from the
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commercial unixes)
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Erik
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--
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Erik Blass|Internet erik@i486.gondor.sub.org
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Theegartener Str.38|42651 Solingen|Voice:0212-201660
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Ich habe Dinge gesehen, die ihr Menschen niemals glauben wuerdet. Gigantische
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Schiffe die brannten an der Schulter des Orion. Und C-Beams - glitzernd in der
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------------------------------
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From: root@i486.gondor.sub.org (Erik Blass )
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Subject: Re: BSD/386 vs. Linux Performance
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Date: Fri, 30 Sep 1994 21:30:48 GMT
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Ed McCreary (edm@gocart.eng.hou.compaq.com) wrote:
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: In article <1994Sep27.072717.2014@rosevax.rosemount.com> grante@reddwarf.rosemount.com (Grant Edwards) writes:
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: Michael Nelson (mikenel@netcom.com) wrote:
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: : Anyone have any performance stats comparing BSD/386 (BSD/OS) with Linux?
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: : Network, disk, and overall...
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: DUCK!
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: RABBIT!
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Yes...very nice...but could someone POST the codes ?
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Greetings,
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Erik
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--
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Erik Blass|Internet erik@i486.gondor.sub.org
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Theegartener Str.38|42651 Solingen|Voice:0212-201660
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Ich habe Dinge gesehen, die ihr Menschen niemals glauben wuerdet. Gigantische
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Schiffe die brannten an der Schulter des Orion. Und C-Beams - glitzernd in der
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------------------------------
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From: sohl@csulb.edu (Barry Sohl)
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Subject: Fortran on Linux??
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Date: 3 Oct 1994 21:46:14 GMT
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I just installed Slackware on a Intel machine and am looking for a
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Fortran compiler similar to F77 for Linux. Does it exist? I'm basically
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just doing small, school-related Fortran programs. I've tried looking
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around sunsite.unc.edu but I don't see anything that looks like F77. I'd
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greatly appreciate any suggestions emailed to sohl@csulb.edu.
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Thanks,
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Barry Sohl
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------------------------------
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Crossposted-To: comp.os.linux.help
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From: phantom@diku.dk (Haktan Bulut)
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Subject: Re: Linux killed my floppy drive!
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Date: Wed, 5 Oct 1994 13:33:52 GMT
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Hmm. Try cleaning your drive. You can get those disks specially for cleaning
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drives put some ethanol 99% on the cleaner disk. Put it into your drive and
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do some DIR commands, this should fix your drive. Actually I have experienced
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the same thing, and I fixed it with a cleaner-disk.
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//////
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phantom@diku.dk
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------------------------------
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From: phantom@diku.dk (Haktan Bulut)
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Subject: What is ELF ??
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Date: Wed, 5 Oct 1994 13:36:45 GMT
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Hi. Could someone tell me what ELF is ?
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Thanks in advance.
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----
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phantom@diku.dk
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------------------------------
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From: beppe@maya.dei.unipd.it (Giuseppe Zanetti)
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Crossposted-To: comp.os.linux.help
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Subject: Re: Linux killed my floppy drive!
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Date: 5 Oct 1994 14:17:14 +0100
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In article <Cx3B76.3q1@oea.xs4all.nl>, Ahmed Naas <ahmed@oea.xs4all.nl> wrote:
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>So, did Linux kill my drive or is this one of those rare coincidences?
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I think that this is one of those.
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Giuseppe
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--
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Giuseppe Zanetti
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------------------------------
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From: ah@doc.ic.ac.uk (Angelo Haritsis)
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Crossposted-To: comp.os.linux.admin
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Subject: MuPAD: where ??
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Date: 5 Oct 94 13:39:48 GMT
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Hello all,
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I missed a posting about a maths package called MuPAD.
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Could someone tell me where to ftp this from?
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What about licensing ?
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Please reply via personal email.
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Thanks in advance,
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Angelo
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--
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#include <standard.disclaimer.h>
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Angelo Haritsis, Applied Systems Section
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s-mail: Dpt of Computing,Imperial College, 180 Queen's Gate, London SW7 2BZ, UK
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e-mail: ah@doc.ic.ac.uk - !!!NEW!!! tel:+44 71 594 8434 - fax:+44 71 581 8024
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------------------------------
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From: ldd@step.step.polymtl.ca (Louis-D. Dubeau)
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Subject: Re: ext2fs vs. Berkeley FFS
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Date: 05 Oct 1994 12:38:25 GMT
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>>>>> "MH" == Mike Haertel <mike@dogmatix.cs.uoregon.edu> writes:
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MH> Rob Janssen (rob@pe1chl.ampr.org) wrote:
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>> Well, the Linux community sneers at BSD for doing synchronous
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>> inode updates, which you won't find in ext2fs :-) Those can
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>> really kill performance when you are manipulating a lot of
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>> files, like in a news system.
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MH> The Linux community may sneer at synchronous inode updates,
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MH> but under BSD ffs I have never lost a file, which is more than
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MH> I can say for ext2fs, which has cost me a whole partition at
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MH> least once, simply due to its overoptimistic buffering.
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I had the exactly oposite experience. Each time that I experienced a
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crash while running an OS on a FFS partition, I lost files that
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weren't even open!!!! Files that had not been open for ages! As for
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ext2fs, I sometimes crashed Linux, my ext2fs server or I sometime
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forgot to shutdown properly and never had any problems to recover my
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data.
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Only once did I have a major corruption problem with ext2fs but I
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guess this was a bug in the actual implementation in the kernel.
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ldd
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-- Louis-Dominique Dubeau == ldd@step.polymtl.ca == hallu@info.polymtl.ca --
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-- Linux on Mach project: http://step.polymtl.ca/~ldd/
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------------------------------
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From: leadfoot@wpi.edu (Mike John Hartman)
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Subject: WANTED: Source to Telnet, FTP
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Date: 5 Oct 1994 18:31:52 GMT
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I've been searching all over Linux FTP sites for source code to the
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Telnet and FTP programs with no luck. From what I have read, Linux
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does support these features but I cannot find any reference as to what
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archive they are contained in, and I don't have the filespace to grab
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1/2 meg archives unless I'm sure it has what I need. Could somebody
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point me to the exact file(s) and site? Email would be appreciated;
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thanks for any help you can give.
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(As an undergraduate project, our group is planning on adding public
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key encryption (eliminating plaintext password broadcast) to these
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programs to make logins and transmissions more secure.)
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leadfoot@wpi.wpi.edu
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------------------------------
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From: sdgb1@cus.cam.ac.uk (Shaune Beattie)
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Subject: Re: Report on gcc with P5 optimizations
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Date: 5 Oct 1994 18:36:52 GMT
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Erann Gat (gat@robotics.jpl.nasa.gov) wrote:
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: FWIW, FYI, ETC:
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: Several people asked me to report my experiences using gcc-2.5.8 with
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: pentium optimizations. I got the version from sunsite, which appears
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: to be slightly different from the version from intel. (For one thing,
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: the intel version claims to be revision 2.4.0.) It compiled without a
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: hitch, and the kernel recompiled OK using -O2 but not -O4. This is
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: consistent with earlier reports. Bootup dies during delay loop
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: calibration.
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: I tried recompiling just this part of the kernel (main.c) using -O2, but
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: it died again a little later during the boot sequence. I have not had
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: time to do a detailed investigation as to the cause of the problem, but
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: for now I think it is prudent to consider -O4 to be unsafe.
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: Unlike earlier reports, I perceive no performance change using the new
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: compiler. However, much of what I am doing is memory-intensive, and so
|
|
: I would not expect to see much speedup.
|
|
|
|
: E.
|
|
|
|
You using the version patched up to version 2.5.8 but based on the old
|
|
intel version?
|
|
I used that and it would compile stuff fine with -O2, would compile with
|
|
-O3 but the compiled program would almost always crash (unless it was a
|
|
simple 'hello world' sort of thing), and under -O4 gcc itself would crash
|
|
with an internal error...
|
|
using povray compiled -mpentium&-O2 against -m486&-O2 i gained about 2%..
|
|
hardly noticeble except on long traces... -O3 would make a povray that
|
|
crashes and -O4 would crash gcc while compiling :(
|
|
|
|
Shaune
|
|
|
|
------------------------------
|
|
|
|
From: dlm40629@uxa.cso.uiuc.edu (Daniel L. Marks)
|
|
Subject: Status of Linux and Distributions security
|
|
Date: 3 Oct 1994 04:38:20 GMT
|
|
|
|
How do the recent linux kernels (1.1.45+) and the various distributions
|
|
(Slackware, SLS, Debian) compare to commercial UNIX offerings such as
|
|
SCO, UnixWare, and BSDI for the number of security holes each is known
|
|
to have? Is Linux secure enough so that "hostile" users can be given
|
|
accounts without worrying about compromised root access with distributions
|
|
like Slackware 2.0.1? How does Linux compare to other UNIXes in its
|
|
handling of attempts by hostile users to make the system suffer (such
|
|
as disk capacity filling, runaway processes, or exploiting setuid
|
|
scripts, etc.)?
|
|
|
|
Linux's reptuation would seem to me to be partially based on its perceived
|
|
efficacy in preventing system break-ins and crashes. Does Linux have
|
|
the kind of safety record that should earn it the kind of reputation
|
|
that the commerical UNIXes have?
|
|
|
|
Dan Marks
|
|
dmarks@uiuc.edu
|
|
|
|
|
|
|
|
------------------------------
|
|
|
|
From: supat@nuntana.animal.uiuc.edu (Supat Faarungsang)
|
|
Subject: linux is great
|
|
Date: 5 Oct 1994 15:35:15 GMT
|
|
|
|
|
|
Hi,
|
|
|
|
After I spend more than 1 year to make 1024x768 work.
|
|
I found that linux is the greatest unix system to be used.
|
|
All softwares under linux is advanced and most powerful.
|
|
|
|
Thanks to the development team,
|
|
supat
|
|
--
|
|
Supat Faarungsang
|
|
University of Illinois
|
|
Department of Animal Sciences
|
|
1207 West Gregory Drive
|
|
|
|
------------------------------
|
|
|
|
From: jakob@taurus.ludd.luth.se (Jakob Sandgren)
|
|
Subject: NCR 810 problems. (NCR53c7xx_reset is NOP)
|
|
Date: 5 Oct 1994 23:01:08 +0100
|
|
|
|
I have some problems with the ncr810 scsi kernel. I have installed linux on my scsi hard-disk but when I try to boot with my boot-disk everything works fine until init is started. This is the output i get:
|
|
|
|
|
|
Oct 6 00:26:18 init[1]: version 2.4 booting
|
|
/etc/rc.d/rc.S: Testing filesystem status: Read-only file system
|
|
scsi0 : reseting for second half of retries.
|
|
scsi0 : DANGER : NCR53c7xx_reset is NOP
|
|
|
|
|
|
---END OF OUTPUT---
|
|
|
|
|
|
After this message stops the system, I can switch to the other viritual tty (blank screen), but thats all.
|
|
|
|
My hardware:
|
|
ASUS SP3-486 motherboard with a DX2-66, 16MB, onboard ncr810 scsi chip, 3Com Etherlink III.
|
|
|
|
I have tried disabled internal/external cach, etc in the bios setup, but nothing seems to help.
|
|
|
|
Anyone who has a clue? (PLEASE!)
|
|
|
|
/Jakob
|
|
|
|
------------------------------
|
|
|
|
|
|
** FOR YOUR REFERENCE **
|
|
|
|
The service address, to which questions about the list itself and requests
|
|
to be added to or deleted from it should be directed, is:
|
|
|
|
Internet: Linux-Development-Request@NEWS-DIGESTS.MIT.EDU
|
|
|
|
You can send mail to the entire list (and comp.os.linux.development) via:
|
|
|
|
Internet: Linux-Development@NEWS-DIGESTS.MIT.EDU
|
|
|
|
Linux may be obtained via one of these FTP sites:
|
|
nic.funet.fi pub/OS/Linux
|
|
tsx-11.mit.edu pub/linux
|
|
sunsite.unc.edu pub/Linux
|
|
|
|
End of Linux-Development Digest
|
|
******************************
|