Subject: Linux-Development Digest #306
From: Digestifier <Linux-Development-Request@senator-bedfellow.MIT.EDU>
To: Linux-Development@senator-bedfellow.MIT.EDU
Reply-To: Linux-Development@senator-bedfellow.MIT.EDU
Date:     Mon, 13 Dec 93 00:13:21 EST

Linux-Development Digest #306, Volume #1         Mon, 13 Dec 93 00:13:21 EST

Contents:
  Re: How to publish mods? (Drew Eckhardt)
  Re: Does LINUX support Magneto-Optical (MO) drives ? (Drew Eckhardt)
  Re: Does LINUX support Magneto-Optical (MO) drives ? (Rob Janssen)
  Re: Using cluster0.5 +pl14 DOUBLES I/O - Performance (Harald Milz)
  Re: What is JAM? (Re: What tools would you use on Linux for business applications?) (Hyman Rosen)
  Re: Merry $*!@ing Christmas! (Simon E Spero)
  Anyone porting BSD FFS to Linux? (Kevin Martin)
  Question About 16550A UARTs (Jerry Shekhel)
  Re: Does LINUX support Magneto-Optical (MO) drives ? (Kevin Brown)
  Sound Blaster Pro MIDI support (John P)
  Re: Booten mit Adaptec 1542C (Harald Milz)

----------------------------------------------------------------------------

From: drew@kinglear.cs.colorado.edu (Drew Eckhardt)
Subject: Re: How to publish mods?
Date: Sun, 12 Dec 1993 10:44:34 GMT

In article <931211015109330@tstation.technix.mn.org>,
GARY MALTZEN <gary.maltzen@tstation.technix.mn.org> wrote:
>I have modified the SCSI tape driver (st.c) of 0.99-pl11 to work with
>StoragTek 9-track (variable length) tapes as well as block-oriented devices
>like my Archive Viper 2150. Assuming this is of interest to the community,
>how do I go about making the changes generally available?

Your best bet is going to be grabbing .99.14a, making sure your patches
still go in there, and making context diffs available.  If they don't 
break the tape driver for other users, we'll integrate them into future
alpha releases that will be the .99.15 kernel if Linus doesn't come up 
with a new numbering scheme...


------------------------------

From: drew@kinglear.cs.colorado.edu (Drew Eckhardt)
Subject: Re: Does LINUX support Magneto-Optical (MO) drives ?
Date: Sun, 12 Dec 1993 10:47:06 GMT

In article <2ec28v$hai@jacobs.jacobs.mn.org>,
Mike Horwath <root@jacobs.mn.org> wrote:
>Hmm..  I have used one, but never tried to eject the disk while it was
>mounted.  Don't think I want to do it either except on a test filesystem.

With many removeable media SCSI devices, it's not possible to eject 
the media when a filesystem is mounted, because the SCSI code will 
lock the device.

Ie, on my Syquest drive, if I hit the stop/unload button, it won't
spin down until the filesystem is unmounted.

------------------------------

From: rob@pe1chl.ampr.org (Rob Janssen)
Subject: Re: Does LINUX support Magneto-Optical (MO) drives ?
Date: Sun, 12 Dec 1993 11:29:04 GMT

In <2ec28v$hai@jacobs.jacobs.mn.org> root@jacobs.mn.org (Mike Horwath) writes:

>Hmm..  I have used one, but never tried to eject the disk while it was
>mounted.  Don't think I want to do it either except on a test filesystem.

Actually, when your drive supports door locking, it won't let you eject
the disk while it is mounted :-)  (nice feature)
umount it and the doorlock is released again...

I have used a Sony SMO drive for a short while, way back at 0.98 pl6
and at that time there were problems because the timeout values were
too short for the awkwardly slow writing of those drives.  SCSI timeouts
were reported while everything was in fact going fine.
But they can be adjusted, and maybe that has been done already.

Rob
-- 
=========================================================================
| Rob Janssen                | AMPRnet:   rob@pe1chl.ampr.org           |
|                            | AX.25 BBS: PE1CHL@PI8UTR.#UTR.NLD.EU     |
| e-mail: pe1chl@rabo.nl     | Tel. BBS:  +31-30715610 (23:00-07:30 LT) |

------------------------------

From: hm@seneca.ix.de (Harald Milz)
Subject: Re: Using cluster0.5 +pl14 DOUBLES I/O - Performance
Date: Sun, 12 Dec 1993 12:23:36 GMT
Reply-To: hm@seneca.ix.de

Eric Youngdale (eric@tantalus.nrl.navy.mil) wrote:
: > In article <81264.37.755439177@novell1.rz.fht-mannheim.de> 81264@novell1.rz.fht-mannheim.de (RAINER SCHIELE INFORMATIK) writes:
: > >Hello out there
: > >
: > >I have installed the new cluster packages on my machine and my I/O - 
: > >Performance going up to 1,2MB (600kb without). I'm using a DEC DSP3160 and a 

I still don't get more than 900 KB/s with the same setup (486DX-33, 8 MB, 
0.99pl14). It's been only around 600 before I patched the kernel.

: > >Adaptec 1542B. My Testtools are Bonnie and Iozone.
: > >
: > >Thanks Eric. Great Work.

Yup!

Ciao,
hm

-- 
Harald Milz (hm@seneca.ix.de)

------------------------------

From: hymie@panix.com (Hyman Rosen)
Subject: Re: What is JAM? (Re: What tools would you use on Linux for business applications?)
Date: 12 Dec 1993 03:38:01 -0500

In article <1993Dec12.020904.2607@pecanpi.atl.us.ga>,
Stan Young <syoung@pecanpi.atl.us.ga> wrote:
>
>Martin, the only suggestion I have would be to look at termcap/terminfo.
>I expect the JAM folks haven't ported it over to Linux. :-)
>
>(For those who were asking about what JAM is, it is a terminal-independent,
>platform-independent application development tool.)

Um... Hi, I'm a JAM folk :-) Seriously, I work for JYACC (the company that
makes JAM). I believe we have actually gotten a request for a Linux port of
JAM, but I don't know what the status of that is. I expect we could do a
port with no effort at all; we port to so many flavors of UNIX as it is.
There are a good half dozen Linux users in our office, so we are not
disinterested, but porting to another OS means more work for our porting
group, another system to maintain, and so forth. It may take a larger
number of requests to get the port pushed. Money talks... BTW, JAM also
runs in a GUI version, but it uses Motif. If someone is going to buy it for
Linux anyway, I don't suppose the extra hundred bucks will make much of a
difference though.

                                                        Hymie

------------------------------

From: ses@tipper.oit.unc.edu (Simon E Spero)
Crossposted-To: comp.infosystems.www,comp.windows.x,comp.windows.x.i386unix,comp.windows.x.motif,gnu.misc.discuss,comp.sources.d
Subject: Re: Merry $*!@ing Christmas!
Date: 11 Dec 1993 19:18:32 GMT

In article <1993Dec7.184826.15665@gallant.apple.com>,
David Casseres  <casseres@apple.com> wrote:
>
>Call in Jesse Helms, these people are as bad as (insert your favorite artistic
>villain here).  Cut their funding.  Send them to Somalia.  Make them write
>everything in Basic and Fortran.  Make them support Mosaic on HyperCard and in
>Excel macros.  That'll teach those smartass SOB's a lesson and remind them of
>whom they are working for.

Totally irrelevant to this discussion, but as some of you may be aware, 
CONCERT-CONNECT, the dialup internet service previously provided by the
North Carolina regional ISP, was recently sold to Capitol Broadcasting. 
Thus the company that first brought you Jesse Helms can now bring you 
alt.sex.bestiality.barney

Of course our beloved senator is probably the only NC politician not to 
have an internet connection; after all the shock might be too much for his
poor old heart. Anybody want to club up to buy him a modem?

Simon
-- 
Hackers Local 42- National Union of Computer Operatives, Chapel Hill section
==============================================================================
Tar Heel Information Services - Nothing but net!   | WAIS/Z39.50 spoken here
North Carolina - First in Usenet        | DoD #612 | Tel: +1-919-962-9107

------------------------------

From: martin@cs.unc.edu (Kevin Martin)
Subject: Anyone porting BSD FFS to Linux?
Date: 12 Dec 1993 21:02:23 GMT

I would like to know if anyone is currently working on a port of the
BSD FFS to Linux.  I would like to be able to share files between
these two systems if possible, and there is no need to duplicate work.

Thanks,
Kevin
___
Kevin E. Martin               University of North Carolina at Chapel Hill
martin@cs.unc.edu                          Department of Computer Science

------------------------------

From: jerry@msi.com (Jerry Shekhel)
Subject: Question About 16550A UARTs
Date: 12 Dec 1993 23:10:13 GMT

Hello folks!

I just replaced my serial ports with 16550A ones, and I have noticed a slight
change in the behavior of XFree86-2.0.  With regular UARTs, I could just
specify 'Logitech "/dev/mouse"' in Xconfig, and everything was fine.  Now that
I have the 16550A's, mouse response in XFree86-2.0 is very jerky unless I
put "BaudRate 9600" into the Xconfig.  Is this normal?
--
+-------------------+----------------------------+---------------------------+
| JERRY J. SHEKHEL  | Molecular Simulations Inc. | Cowboy Junkies, Phish,    |
| Drummers do it... |     Burlington, MA USA     | Tribe, Guns N' Roses,     |
|    ... In rhythm! |        jerry@msi.com       | TAMA, Zildjian, Linux...  |
+-------------------+----------------------------+---------------------------+

------------------------------

From: kevin@frobozz.sccsi.com (Kevin Brown)
Subject: Re: Does LINUX support Magneto-Optical (MO) drives ?
Date: Sun, 12 Dec 1993 22:03:54 GMT

In article <1993Dec10.171421.15763@aio.jsc.nasa.gov> sohail@rhonda.jsc.nasa.gov writes:
>
>Does LINUX support Magneto-Optical (MO) drives ? I am looking at the 
>Fugitsu 3.5 inch drive that support 128M on the each drive. The I have
>read a little bit on the technology and the drive and it looks good. As 
>you all know MO optical drives are READ/WRITE drives  where the READ/WRITE
>access is much slower then a normal magnetic drive but you can you use the
>media like normal floppy drives. Although its expensive then DAT Tapes but
>the media life is much longer. Any way, the drives provide a standard SCSI
>(or SCSI-II) interface.

I'm running one of these beasts on my system as we speak (Linux 0.99.13).

>I have the following questions:
>
>a) Since the drives have standard SCSI interface and will be connected
>   to my standard scsi card, do I even need any additional driver support ?

The SCSI driver in the kernel already has built-in support for removable
media drives (such as the MO).  It's pretty much plug and play.  Be sure
to set it up as a removable-media drive (there's a switch that will make
it look like a fixed disk.  You don't want to use that feature).

>b) How will the MO-floppy change detection will take place ? Is it gonna be
>   similar to the way floppy driver detects floppy drive change ?

Most removable media drives send a signal to the driver that the media has
changed.  CD-ROM drives do this.  Unfortunately, the Fujitsu 128M drive
doesn't do it right, and thus the kernel doesn't immediately recognize
when a media change has been detected.

So instead, what you have to do is eject the disk, access the device (e.g.,
with "</dev/sdb" from the shell where sdb is the device the MO drive is on),
insert a new disk, access the device (same as above), and then mount the new
filesystem.

Unless, of course, Fujitsu has fixed this behavior...


-- 
Kevin Brown                                     kevin@frobozz.sccsi.com
This is your .signature virus: < begin 644 .signature (9V]T8VAA(0K0z end >
            This is your .signature virus on drugs: <>
                        Any questions?

------------------------------

Crossposted-To: comp.os.linux.help
From: pallisj@betelgeux.elec.canterbury.ac.nz (John P)
Subject: Sound Blaster Pro MIDI support
Date: Sun, 12 Dec 1993 07:45:08 GMT

Hello,

I'm working on a X-based sequencer/composition thing, and I need some
info on how to talk to my SB Pro's MIDI port. Can anyone point me to
existing docs, source etc?

advTHANKSance,

John P
--
John Pallister                           pallisj@elec.canterbury.ac.nz
Dept. of Electrical & Electronic Engineering
University of Canterbury, Christchurch, New Zealand
"Who can possibly rule, if no-one who wants to can be allowed to?" - THHGTG

------------------------------

From: hm@seneca.ix.de (Harald Milz)
Subject: Re: Booten mit Adaptec 1542C
Date: Sun, 12 Dec 1993 17:11:01 GMT
Reply-To: hm@seneca.ix.de

Arnd (arnd@BOELKSTOFF.cilnet) wrote:
: > I'm using an Adaptec 1542C with a Toshiba 1 GB Drive and an 250 MB Quantum IDE drive as bootdrive.
: > I've just problems booting the SLS bootdisk with the adapter BIOS enabled. Is it possible to boot from flopy with the BIOS enabled ?
: > Any help would be very nice.

Are you able to boot any other disk, i.e. DOS disks? If no, I suspect you have
both floppy controllers enabled (adaptec 1542C's and the IDE adapter's). 

BTW, I tried to send you email, but the unido mailer doesn't know a domain
cilnet. Any clue?

Ciao,
hm


-- 
Harald Milz (hm@seneca.ix.de)

------------------------------


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