602 lines
22 KiB
Plaintext
602 lines
22 KiB
Plaintext
Subject: Linux-Development Digest #540
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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, 11 Mar 94 22:13:10 EST
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Linux-Development Digest #540, Volume #1 Fri, 11 Mar 94 22:13:10 EST
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Contents:
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VGA ID function - help needed! (Andrew M Dyer)
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Re: Startup code (DOS boot program) (Nick Holloway)
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Re: Amiga File System, once again (John Edward Tillema,&91M+soAj)
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Re: [Q] What's bsd_ioctl ? (Zeyd M. Ben-Halim)
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A truely non-debugging Kernel? (Alex Ramos)
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notebook doesn't warn when batteries are empty (Pieter.Verhaeghe)
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Re: inb and inb_p??? (Greg McGary)
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Mountain Mach2 tape controller - Anyone? (Eric Kimminau)
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Re: QUERY: Assembler Code Perversion (keeper of a million bits)
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ASPI programming (P. Feddema)
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Re: Amiga FileSystem, Anyone? (Darren Reed)
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Re: Specialix driver (Brandon S. Allbery)
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kernel mmap() , MAP_SHARED/PROT_READ/PROT_WRITE (Ronnie Sahlberg)
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Re: Startup code (DOS boot program) (Romano Giannetti)
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Re: X11R6? (Christian Pablo Tagtachian)
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if I crash the kernel, should I tell anyone? (chris ulrich)
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----------------------------------------------------------------------------
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From: amd@chinet.chinet.com (Andrew M Dyer)
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Subject: VGA ID function - help needed!
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Date: Fri, 11 Mar 1994 04:08:41 GMT
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HI!
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I'm currently starting a project to write a XFree86 driver for the
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IIT AGX-014/015 chips. Below is a fragment of code to ID the chipset.
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I only have a agx-014 card, so I would like for somebody with an agx-015
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based card to try this out and let me know how it works. This code will
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compile under djgpp with libpc, and should be easy to modify for TurboC.
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/*
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* testiit.c
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*
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* Dos based s/w to run a test of how iit AGX=014 registers respond
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* to various peeksies and pokesies
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* AMD 3/8/94
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*/
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#include <stdio.h>
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#include <pc.h>
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#define iit_idx 0x216a
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#define iit_data 0x216b
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#define iit_agx_mode7 0x6c
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void writeidxb(addr, data)
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unsigned char addr, data;
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{
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outportb(iit_idx, addr);
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outportb(iit_data, data);
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return;
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}
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unsigned char readidxb(addr)
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unsigned char addr;
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{
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outportb(iit_idx, addr);
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return(inportb(iit_data));
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}
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int main(argc, argv)
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int argc;
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char *argv[];
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{
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unsigned char tmp;
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unsigned short addr;
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ScreenClear();
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/* do a read/write to agx mode register 7 to decide between */
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/* agx-14 and agx-15 */
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tmp = readidxb(iit_agx_mode7); /* either agx-14 or 15 */
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writeidxb(iit_agx_mode7, (!tmp && 0x3f));
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if (readidxb(iit_agx_mode7) != tmp) /* check mode register 7 */
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printf("agx 15 detected\n");
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else
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printf("agx 14 detected\n");
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writeidxb(iit_agx_mode7, tmp);
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}
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--
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Andrew Dyer Harrisburger's Fourth Law of the Lab:
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amd@chinet.chinet.com experience is directly proportional to
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the amount of equipment ruined.
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------------------------------
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From: alfie@dcs.warwick.ac.uk (Nick Holloway)
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Subject: Re: Startup code (DOS boot program)
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Date: Fri, 11 Mar 1994 13:28:23 GMT
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In <2lpoqd$egi@serra.unipi.it> romano@pimac2.iet.unipi.it (Romano Giannetti) writes:
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> In comp.os.linux.development, Erik de Romph (erik@dutcvk5.tudelft.nl) wrote:
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> > There is a program called bootlin which does what you want.
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>
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> Not exactly, I think... I use bootlin and I remember it had to be
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> runned from the config.sys, and not from a "Running DOS environment".
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> It was explained why in the README (Thid could be an hint...). Or I am
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> using a very old version?
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The version I last looked at could be run from the dos command line,
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but it said it couldn't deal with compressed kernels. My brief
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experimentation failed (tweak-reboot-fail-reboot-login cycles are
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too long).
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I don't understand why it can't deal with compressed kernels, since
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I would have thought it would have performed the same task as LILO --
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stuffing the kernel image into memory at the correct location, and then
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running it.
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I was thinking of having a floppy where the first 512K was a dos fs with
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bootlin (or equivalent) and a kernel image. The next (1440-512)K would
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then be a Linux fs, which would be loaded as a ramdisk (I did think that
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the ramdisk looking for a super-block at block 512 could be deprecated --
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but this is a new use for it)
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Alternatively, I guess the same could be done using UMSDOS, since the
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512K is far too large for a minimal compressed kernel.
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--
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Nick Holloway | `O O' | alfie@dcs.warwick.ac.uk, alfie@warwick.UUCP,
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[aka `Alfie'] | // ^ \\ | ..!uunet!mcsun!uknet!warwick!alfie
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------------------------------
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From: tillemaj@news.doit.wisc.edu.UUCP (John Edward Tillema,&91M+soAj)
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Subject: Re: Amiga File System, once again
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Date: 11 Mar 1994 05:10:17 GMT
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From article <2lmrfu$db9@wizard.uark.edu>, by dfaulkne@comp..uark.edu (Donald Faulkner):
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> I've been reading for some time the discussion about implementing an
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> Amiga File System for Linux. It seems that all the discussion has
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> centered around such a file system for ix86-Linux. Other than the
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> fact that this is probably possible, I see no reason why such a
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> file system is needed. PC users don't need an Amiga file system, and
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> the rest of us who have Amigas can use CrossDos(tm) or MSH, or some
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> other transfer system to create a PC-readable disk. So on the PC side,
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> an Amiga file system is kindof useless.
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>
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> The big question (and I think this was probably the main point of the
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> original post) is whether an Amiga file system will be written for Amiga
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If I remember right, the original poster had some Amiga floppies he wanted
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to read on his PC but _didn't_ have access to an Amiga, so he couldn't
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use MSH: or PC0:.
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I do think that being able to read Amiga floppies on a PC would be nice,
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but it doesn't sound like it is possible. Though it would probably make
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more sense to allow Linux to read Amiga hard drive's which would be of
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use to the Amiga Linux project and others who have Amigas HDs and
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Linux on PCs and want to transfer files.
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> Linux. While it is true that we can use msdos disks, most disks that
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> are owned by Amiga owners aren't formated msdos, ext2, or even minix, but
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> as amiga. It would be really nice if we could mount our amiga floppies
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> and hard disk partitions in Amiga Linux. I don't really see why this would
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> be very difficult (though I am not volunteering to do it :).
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>
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I agree, it shouldn't be too difficult for the Amiga port though as you said
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I'm not volunteering mainly since my Amiga is a 68k machine and its in Seattle
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WA and I'm in Madison WI.
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John
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--
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--
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John Tillema //
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tillemaj@cae.wisc.edu \\// + 'nix
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------------------------------
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From: zmbenhal@netcom.com (Zeyd M. Ben-Halim)
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Subject: Re: [Q] What's bsd_ioctl ?
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Date: Wed, 9 Mar 1994 21:13:15 GMT
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In article <1994Mar9.050324.5074@random.ccs.northeastern.edu>,
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Steven Yampolsky <minsk@ccs.neu.edu> wrote:
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>Hi!
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>
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> For the past couple of days I've been trying to port SPIM MIPS
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>Emulator 5.2 to Linux. Yesterday I got stuck on a linking error:
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>
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> spim.o: Undefined symbol _bsd_ioctl referenced from text segment
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>
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>The only reference to bsd_ioctl is in /usr/include/bsd/sgtty.h which
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>goes something like this:
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> #undef ioctl
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> #define ioctl bsd_ioctl
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>
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>Can somone help me here?
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If you use anything in /usr/include/bsd you should use -lbsd.
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Zeyd
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--
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---
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Zeyd M. Ben-Halim zmbenhal@netcom.com
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10479 1/4 Santa Monica Blvd, LA, CA, 90025 (310) 470-0281
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------------------------------
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From: ramos@engr.latech.edu (Alex Ramos)
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Subject: A truely non-debugging Kernel?
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Date: 11 Mar 1994 03:24:33 GMT
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Geez! The kernel has _so much_ debugging code (sanity checks, etc) that
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I wonder how much smaller it could be. It seems most kernel developers
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have never heard of #ifdef... Just a thought :-)
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--
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Alex Ramos <ramos@engr.latech.edu> * This message is copyrighted material!
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Louisiana Tech University BSEE/Sr * All rights reserved. No warranty, etc
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------------------------------
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From: pive@uia.ac.be (Pieter.Verhaeghe)
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Subject: notebook doesn't warn when batteries are empty
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Date: Thu, 10 Mar 1994 08:45:16 GMT
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I have the following problem:
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When the batteries are running empty, my computer should beep, this works
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fine under an unmodified MS-DOS but not under Linux (when the batteries
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are empty my computer just stops working :-().
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There is an option in BIOS-setup that enables (or disables) this property,
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whatever I put on, my computer refuses to beep in the right time. (There
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is a MS-DOS program that enables or disables this property, but it
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refuses to work under the dos emulator: is say it doesn't find the right
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hardware).
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My question is: does there exists a program (or kernel patch) that
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enables this property?
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BIOS:
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=====
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VGA Bios Version 3.11
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Copyright (c) Cirrus Logic Inc. 1989-1991
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Copyright (c) 1984-91 Award Software Inc. 1984-1988 All Rights Reserved.
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486SLC Modular BIOS GC-21 Version 3.15.1
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Copyright (c) 1984-91 Award Software Inc.
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486SLC BIOS Version B39V3122(R) (Mar 18,1993) Award Software Inc.
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CPU
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---
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Cyrix 486SLC
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OS
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__
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Linux 0.99.14 (slackware 1.1.1)
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If you need more data, I'll be glad to give them
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Thanks
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Pieter
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=========================================================================
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P. Verhaeghe
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University of Antwerp,RUCA,Department of Mathematics and Computer Science
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Groenenborgerlaan 171 Tel: +32 3 2180376
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B-2020 Antwerpen, Belgium Fax: +32 3 2180217
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E-mail: pive@banruc60.bitnet (or pive@wins.uia.ac.be)
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=========================================================================
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------------------------------
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From: gkm@tmn.com (Greg McGary)
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Subject: Re: inb and inb_p???
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Date: 11 Mar 1994 17:30:53 -0500
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Reply-To: gkm@tmn.com (Greg McGary)
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| This may be a stupid question to ask, but what is the
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| difference between inb and inb_p or outb and outb_p ??
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The "_p" variants pause after reading or writing to the port. The pause
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makes some devices happier.
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For snappy answers to this and other kernel questions, refer to the
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Linux kernel hackers guide, found on tsx-11.mit.edu in
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pub/linux/docs/linux-doc-project/khg-0.5.tar.gz
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and someplace else (I don't know where, off the top of my head) on
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sunsite and other places.
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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: ekimmina@pms709.pms.ford.com (Eric Kimminau)
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Subject: Mountain Mach2 tape controller - Anyone?
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Date: 11 Mar 1994 14:11:50 GMT
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Does anyone else using Linux have a Mountain Mach2 hardware
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compression tape controller? Have you tried using ftape with it? Has
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anyone tried contacting mountain about writing an ftape driver for
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it?
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Thanks!
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--
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Eric Kimminau Workstation Systems Department
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313-322-3431 Product & Manufacturing Systems
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ekimmina@pms709.pms.ford.com Ford Motor Co.
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Planning and Implementation "Not an official Ford Spokesperson"
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------------------------------
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From: cgull@wd40.ftp.com (keeper of a million bits)
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Subject: Re: QUERY: Assembler Code Perversion
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Date: 9 Mar 94 02:23:15 GMT
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Reply-To: cgull@ftp.com
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In article <1994Mar6.102501.1965@penrij.uucp>,
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John R. Campbell <soup@penrij.UUCP> wrote:
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>I'm willing to bet that this is NOT the right group to post this Question
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>(but I will anyway).
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>
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>I've been handed a sh*tload of MASM source code for the 386/486 (SCO UNIX)
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>and I need to convert it to a _REAL_ assembler (GAS on Linux, of course).
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>
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>Anybody have any dirty tricks???
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Long long ago and far, far away, some early versions of SVR3 for the
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386 came with a shell script to do most of the job of munging MASM
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code into SVR3 'as' syntax. My copy of Microport SYSV/386 3.0e had
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this.
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Now, SVR3 'as' is still a ways from 'gas', but it would be either 1) a
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good first step or 2) a good base to hack a MASM->gas script from.
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------------------------------
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From: fed@dutiag.twi.tudelft.nl (P. Feddema)
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Subject: ASPI programming
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Date: Fri, 11 Mar 1994 14:18:57 GMT
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Does anyone know how to program CD-ROM devices using ASPI?
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Any information on the subject (books, docs on public ftp-sites,
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other info) is most welcome.
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If you have any information, please let us know, preferably per
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e-mail. If we are barking up the wrong tree here and there are
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other newsgroups that may have more (specialized) information,
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please let us know. We are getting quite desperate here.
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Ir Pascal R.M. Feddema (fed@dutiag.twi.tudelft.nl)
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Delft University of Technology
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Depertment of Mathematics and Informatics
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------------------------------
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From: avalon@cairo.anu.edu.au (Darren Reed)
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Subject: Re: Amiga FileSystem, Anyone?
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Date: 10 Mar 94 08:58:34 GMT
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rob@pe1chl.ampr.org (Rob Janssen) writes:
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>In <DHOLLAND.94Mar5232531@husc7.harvard.edu> dholland@husc7.harvard.edu (David Holland) writes:
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>>The strange stuff the trackdisk.device does should be possible with PC
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>>hardware, unless that hardware is even less capable than I thought. If
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>>the Amiga does something else, like write more tracks than the average
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>>PC drive can access, I don't know about it.
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>The PC has a specialized floppy disk controller that understands and
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>handles the industry-standard MFM format of formatting diskettes.
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>The Amiga does not use that standard format (and neither does the Mac)
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I believe, having used sevral disk editors on the Amiga, that there is
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an option _somewhere_ which turns MFM on/off - along with other floppy
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formats. The Amiga reads and writes entire tracks at a time, but breaks
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each track up into 11 logical sectors, 512 bytes each, in s/ware, which
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is why they get 880k rather than 720k on the same drive format, for
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example. I imagine if you can do `raw reads' of the disk using a PC
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controller, you're on the right track to solving this problem.
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------------------------------
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Crossposted-To: gnu.misc.discuss
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From: bsa@kf8nh.wariat.org (Brandon S. Allbery)
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Subject: Re: Specialix driver
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Date: Fri, 11 Mar 1994 23:38:09 GMT
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In article <CMFuy2.10z@scifi.uucp>, njs@scifi.uucp (Nick Simicich) says:
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+---------------
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| development kits for the DSP cards and hack GCC to do code generation
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| for DSP's (you can now tell that I know nothing about DSP programming)
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+------------->8
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Someone has already produced a gcc (1.x, I think) for the 56000 DSP. Not
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under Linux, but I dare say it can be ported.
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++Brandon
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--
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Brandon S. Allbery kf8nh@kf8nh.ampr.org bsa@kf8nh.wariat.org
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"MSDOS didn't get as bad as it is overnight -- it took over ten years
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of careful development." ---dmeggins@aix1.uottawa.ca
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------------------------------
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From: ronnie@lysator.liu.se (Ronnie Sahlberg)
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Subject: kernel mmap() , MAP_SHARED/PROT_READ/PROT_WRITE
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Date: Thu, 10 Mar 1994 09:49:06 GMT
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Hi all you kernel hackers.
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I run a kernel pl14something and i have some questions regarding
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mmap() calls.
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(if these things have changed to the latest kernel version, I appologise)
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I want to use mmap() of a regular file with read/write permissions
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and MAP_SHARED flag for a simple (and effective) scheme of sharing
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data structures between processes.
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I cannot use fork() for this since the two different programs may be
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started at different times.
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(I.e. imagine a server running happily for a long time, then I would
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at any given point start a PEEKing program, that mmap()s the same
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file as the server used ,also using MAP_SHARED, to read the internal
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data structures inside the server, without disturbing the server while
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its running.
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Another restriction is that the shared memory MUST reside at a given
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fixed address in the server dataspace, the client, or PEEKer, can
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have the memory mapped at whtever address. Dont matter at all.
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The easiest way to do this is by using mmap(), since it would then
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be possible to get true shared memory, and it would allow mapping of
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the file to specific addresses in memory.
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)
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To make it short:
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I NEED a mmap() that supports read/write and MAP_SHARED.
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Any possibility of getting such mmap() in any near future ?
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Is there something in the linux memory system that prevents such a mmap()
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functionality?
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Are there other methods, this easy, to have different processes share
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parts of the same memory ?
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yours sincerely, and hopefullt mmap()ing soon,
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ronnie s.
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------------------------------
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From: romano@pimac2.iet.unipi.it (Romano Giannetti)
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Subject: Re: Startup code (DOS boot program)
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Date: 11 Mar 1994 15:12:26 GMT
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In comp.os.linux.development, Nick Holloway (alfie@dcs.warwick.ac.uk) wrote:
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[...bootlin...]
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> The version I last looked at could be run from the dos command line,
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|
> but it said it couldn't deal with compressed kernels. My brief
|
|
> experimentation failed (tweak-reboot-fail-reboot-login cycles are
|
|
> too long).
|
|
|
|
This sounds quite new to me, I'm using it with compressed kernel... I
|
|
have a line in the config.sys like this:
|
|
|
|
[ALinux]
|
|
SHELL=c:\etc\bootlin.com c:\etc\imagep1.0
|
|
|
|
and imagep1.0 is simply copied from zImage to the dos disk. And it
|
|
work... very well.
|
|
|
|
--
|
|
*******************************************************************************
|
|
Romano Giannetti * DII-EIT, University of Pisa(E stands for Electronics)
|
|
romano@iet.unipi.it * Dpto Electr. y Electronica, Facultad de Fisica
|
|
* Universidad Complutense de Madrid
|
|
*******************************************************************************
|
|
|
|
------------------------------
|
|
|
|
From: floyd@myhost.subdomain.domain (Christian Pablo Tagtachian)
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|
Subject: Re: X11R6?
|
|
Date: Wed, 9 Mar 1994 19:58:57 GMT
|
|
|
|
Christian Moen (christim@ifi.uio.no) wrote:
|
|
: I have posted to comp.windows.x.whatever asking for directions to finding
|
|
: X11R6 source code... I got 1 reply, but lost it...
|
|
|
|
: I will ask here. Does anyone know where to find X11R6 source code?
|
|
|
|
: The X11R6 source-code has not been released to the public and is
|
|
: currently only available to X Consortium members. The source is
|
|
: scheduled to be released on April 15.
|
|
|
|
Does anyone know where to get information about it? New features... etc..?
|
|
Thank you very much.
|
|
|
|
<floyd@arthax.satlink.net>
|
|
Buenos Aires, Argentina.
|
|
|
|
|
|
------------------------------
|
|
|
|
From: insom@galaxy.ucr.edu (chris ulrich)
|
|
Subject: if I crash the kernel, should I tell anyone?
|
|
Date: 9 Mar 1994 14:51:52 -0800
|
|
|
|
I decided to see how much abuse I could give my system before
|
|
it died. (quite a lot, actually)
|
|
so I did this:
|
|
dd if=/dev/hda of=/dev/null bs=512 &
|
|
cat /dev/sda > /dev/null &
|
|
cat /dev/sdb > /dev/null &
|
|
(wait 2 minutes)
|
|
dd if=/dev/hda of=/dev/null bs=512 &
|
|
cat /dev/sda > /dev/null &
|
|
cat /dev/sdb > /dev/null &
|
|
|
|
At this point, my computer sounded like a phaser on overload.
|
|
But it wasnt enough
|
|
so I did xv on a 2 meg jpg (which uses about 15 meg of memory)
|
|
and ran ico and a couple of other programs (dhrystone, kermit)
|
|
while running rain from the school computer over a 14.4bps modem.
|
|
The load average got up to about 10.50 9.75 6.50, and I had used
|
|
up all but one meg of the swap.
|
|
|
|
My system:
|
|
486dx40 eisa with 20 meg of ram, 26 meg swap disk,
|
|
1 esdi disk via an ultrastor 22f
|
|
2 scsi disks via an adapted 1740 (a wren III and a wren IV)
|
|
I am using 0.99.15h without clusters, with the 1740 and qic02
|
|
drivers compiled in. Version 4.5.19 libc, and most binaries
|
|
are from the slackware 1.1.1 distribution (X, dd, cat, etc)
|
|
|
|
When (according to top) the system had less than 1 meg of swap
|
|
left, everything stopped (crash)
|
|
according to syslog, this is what happened:
|
|
|
|
Mar 9 14:04:54 context kernel: <6>SCSI host 0 timed out - aborting command
|
|
Mar 9 14:07:07 context kernel: <6>SCSI host 0 timed out - aborting command
|
|
Mar 9 14:10:18 context kernel: <6>Unable to handle kernel NULL pointer dereference at address 000000d0
|
|
Mar 9 14:10:18 context kernel: <6>Oops: 0000
|
|
Mar 9 14:10:18 context kernel: <6>EIP: 0010:0018962a
|
|
Mar 9 14:10:18 context kernel: <6>EFLAGS: 00010202
|
|
Mar 9 14:10:18 context kernel: <6>eax: 00000020 ebx: 00000000 ecx: 000046e4 edx: 00006cd5
|
|
Mar 9 14:10:18 context kernel: <6>esi: 0017ecb8 edi: 001a474c ebp: 001a46e4Mar 9 14:10:18 context kernel: <6>ds: 0018 es: 0018 fs: 002b gs: 002b
|
|
Mar 9 14:10:18 context kernel: <6>Pid: 439, process nr: 39 (dd)
|
|
Mar 9 14:10:18 context kernel: <6>83 bb d0 00 00 00 00 74 14 68 00 02 00 00 8b
|
|
93 d0 00 00 00
|
|
|
|
I dont think the SCSI host 0 timed out is part of the problem.
|
|
I suspect the wren III caused the scsi timeouts, as it is a really
|
|
old and slow drive. The dd was on the esdi disk not the scsi disks.
|
|
This is the only time I have gotten the computer to crash since I
|
|
turned on swapping. Linux is amazing.
|
|
Thanks for your time,
|
|
chris
|
|
(to the person who is going to tell me not to post this here, tell
|
|
me who to send this complaint to, as it could be the scsi drivers,
|
|
a bad interaction with the ultrastor 22f, or the kernel itself)
|
|
insom@ac.ucr.edu Ecstatic peace
|
|
insom@ucrvms Savage conquest
|
|
|
|
------------------------------
|
|
|
|
|
|
** 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
|
|
******************************
|