HDTenEightyP/NetNews huggingface dataset:
From: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Subject: Re: Return from signal handler??
Reply-To: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Organization: The Internet
Date: Thu, 13 Aug 1992 01:48:30 GMT

   From: Philip Balister <balister@pdsrvr.salem.ge.com>
   Reply-To: balister@pdsrvr.salem.ge.com
   Date: Wed, 12 Aug 1992 19:52:05 GMT

   A guy where I work is trying to use the signal mechanism of Lynxos to set
   a global variable to indicate a floating point error by trapping floating
   point exceptions signals. What he found was that the signal handler seems
   to return to the line that caused the signal, causing it to happen again,
   not what he wanted! 

That is in fact the correct behavior.  If you catch something like a
segmentation violation or a FP exception, it is up to your signal
handler to either fix the registers or otherwise make sure that the
problem won't happen again before you return.  Most signal handlers for
SEGV and FPE just do some cleanup work and then exit(); they do not
return back to the program.

An exception to this is how old versions of the Bourne shell did memory
management.  Malloc() would just hand out memory allocations without
actually doing anything to make sure that the memory was there.  Then,
the first time the bourne shell tried to use the pointer, it would get a
SIGV, which was trapped by a signal handler.  That signal handler then
did the sbrk() command so that the faulting instruction would success
this time around, and returned.  

Needless to say, this was horrible design and not particularily portable
to other platforms.  But it illustrates the rare example of where you
actually return from a signal handler for SIGSEGV or SIGFPE.  

							- Ted
From: olafabbe@w251zrz.zrz.tu-berlin.de (Olaf Schreck)
Newsgroups: comp.os.linux
Subject: how to put bootimage on hd? (faq?)
Date: 18 Aug 92 12:04:51 GMT
Organization: ZRZ/TU-Berlin

Hi,

sorry to ask this faq, but i didn't find it in the faq list (date 92/06/12).
should be added, i think. 

so:

how do i put the BOOTimage onto my hd? i did this once, worked fine, but
can't remember where i read about this. must have been something with dd.
i tried "dd if=/dev/floppy0 /vmlinux" but this gave me a 1.4 MB file
(the whole floppy disk instead of ~ 230k bootimage file).

i'm using shoelace, as you might guess. changed the root partition, edited
the bootdisk with dos norton utility, but can't get this image onto the hd
to boot without a floppy.

btw, read all fine manuals available to me :-)

any hints appreciated. thanks alot. 
olaf (olafabbe@w250zrz.zrz.tu-berlin.de)
Newsgroups: comp.os.linux
From: lcd@ais.org (Leon Dent)
Subject: Re: Linux Logo
Organization: UMCC
Date: Thu, 13 Aug 1992 22:15:32 GMT

I was able to view the logo with ghostscript (running under Linux).  I
set it to output a gif, and then viewed it under msdos.

I liked the drop-L, though I think it might look better with Linux
written in cursive letters (with a flowing cursive drop-L).  :-)

Leon Dent
lcd@ais.org

Newsgroups: comp.os.linux
From: oles@spectra (Shawn Oles)
Subject: Re: Staker like file system
Keywords: Compressed file system
Organization: University of Hawaii, Dept. of Electrical Engineering
Date: Sat, 22 Aug 1992 22:31:10 GMT

In article <fcrews.1.714340460@WES.ARMY.MIL> fcrews@WES.ARMY.MIL (FORD CREWS) writes:
>Hello has anyone out there working on the linux filesystems thought about
>adding an option for a compressed file system like Stacker does for DOS.
>You know a file system that compresses/uncompresses on the fly so we can get
>more stuff on our hard drives.  Just an idea I had that I thought might be 
>easer to get going now than later when everything is set in stone.

I have been working on a compressed file system for Linux.  It is very similar
to stacker, but has the advantage of not having to go through DOS.  The
performance will be worse then non-compressed filesystems, but still
tollerable (I hope).   Thanks to Linus' excellently designed VFS interface, I
am approaching a point where where I can go into beta with the release
of a single VFS directory of new file system routines.  I have to admit, it
does not work yet as a real file system, but is very close.

When I do get to the point where it works, I will post some performance
figures and and archive location along with more details.

-shawn
-- 

-shawn
From: wirzeniu@klaava.Helsinki.FI (Lars Wirzenius)
Newsgroups: comp.os.linux
Subject: Re: Can I use dd on my UNIX system instead of Rawrite?
Date: 12 Aug 92 19:13:30 GMT
Organization: University of Helsinki

smace@nyx.cs.du.edu (Scott Mace) writes:
>don't forget you need to do dd bs=8192 if=Image of=/dev/PS0
>
>bs = bootsector and you need this for the kernel boot disk in order for
>it to work.  I don't no what will happen if you don't use the 'bs'
>option.

The bs option to dd specifies the number of bytes that it reads or
writes at a time.  bs=8192 means that it reads and writes 8 kB at a
time.  It has nothing to do with the boot sector.  The only thing that
will happen is that the copy _may_ work at a different speed.

--
Lars.Wirzenius@helsinki.fi
Newsgroups: comp.os.linux
From: erc@unislc.uucp (Ed Carp)
Subject: Re: Complete ignorance of the concept of free software
X-Newsreader: Tin 1.1 PL5
Organization: Unisys Corporation SLC
Date: Wed, 12 Aug 1992 21:46:44 GMT

Theodore Ts'o (tytso@ATHENA.MIT.EDU) wrote:

: I would be interested in finding out what the demographics of the people
: who have been whining (and not doing any work) on the newsgroup.  I
: don't know of any way of getting an accurate sample, though.

OK, I have an idea! <god, what a scary thought!>

If you are a linux developer, send email (anything will do)
to khijol!developers@saturn.upl.com.

If you are a whiner, send email to khijol!whiners@saturn.upl.com.

Voting will commence at 12 AM MDT tonight, and end in 7 days.  I'll post
the results.

OK with you, Ted?? :) :) :)
-- 
Ed Carp, N7EKG     erc@apple.com                801/538-0177
"This is the final task I will ever give you, and it  goes  on  forever.   Act
happy, feel happy, be happy, without a reason in the world. Then you can love,
and do what you will."           -- Dan Millman, "Way Of The Peaceful Warrior"
Newsgroups: comp.os.linux
From: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Subject: Message to Orest...
Reply-To: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Organization: The Internet
Date: Thu, 13 Aug 1992 16:16:19 GMT

My apologies for sending this to the entire list, but I've been trying
to send mail to obz@raster.kodak.com, but Kodak's mail setup is
occasionally flakey and mail doesn't seem to go through.

Orest, I'd like to talk to you about arranging an X11 directory (which
you would have write access to) on TSX-11's FTP archive server, to make
it easier for you to release new X11 distributions since
banjo.concert.net is going away.  Please send me email with your phone
number, or call me at (617) 253-8091.  Thanks!

							- Ted
From: frank@cs.yorku.ca (Frank Pikelner)
Newsgroups: comp.os.linux
Subject: Re: how to put bootimage on hd? (faq?)
Date: 21 Aug 92 13:30:07 GMT
Organization: York University, Dept. of Computer Science

In article <1992Aug20.194255.4847@unislc.uucp>, erc@unislc.uucp (Ed Carp) writes:
|> Olaf Schreck (olafabbe@w251zrz.zrz.tu-berlin.de) wrote:
|> 
|> : how do i put the BOOTimage onto my hd? i did this once, worked fine, but
|> : can't remember where i read about this. must have been something with dd.
|> : i tried "dd if=/dev/floppy0 /vmlinux" but this gave me a 1.4 MB file
|> : (the whole floppy disk instead of ~ 230k bootimage file).
|>

Is the command not something like:

 dd if=/dev/floppy0 of=/vmlinux count=230	(or is it 2x230=460?)

I'll be doing this in the next couple of days so maybe someone can correct/verify
the above.

|> If you have the source, recompile, then cp /usr/src/linux/Image.
|> 
|> In the Makefile, there is a dd command associated with the target "make disk" -
|> reverse the if= and of= and it should work, also.
|> -- 
|> Ed Carp, N7EKG     erc@apple.com                801/538-0177
|> "This is the final task I will ever give you, and it  goes  on  forever.   Act
|> happy, feel happy, be happy, without a reason in the world. Then you can love,
|> and do what you will."           -- Dan Millman, "Way Of The Peaceful Warrior"

-- 

--------------------------------------------------------------------------
 ---  ---    Frank Pikelner                                          /~\
 \    \  \   Technical Assistant, Department of Computer Science    <v.v>
  \-   \--   York University (Toronto, Canada)                      ,\^/;
   \    \    Internet: frank@cs.yorku.ca                            _{!}_
--------------------------------------------------------------------------
Newsgroups: comp.os.linux
From: bailey_j@kosmos.wcc.govt.nz
Subject: X
Reply-To: bailey_j@kosmos.wcc.govt.nz
Organization: Wellington City Council, Wgtn, NZ
Date: Mon, 17 Aug 1992 22:06:58 GMT

Hi. I have a Trident8900 SVGA/512kb graphics card. Can I run X on this ?
Newsgroups: comp.os.linux
From: jwinstea@fenris.claremont.edu (Jim Winstead Jr.)
Subject: Re: Source for the rootdisk programs. Where?
Organization: Harvey Mudd College, WIBSTR
Date: Wed, 19 Aug 1992 02:12:40 GMT

In article <Bt6Fz1.15n@ais.org> lcd@ais.org (Leon Dent) writes:
>In article <1992Aug18.061057.12073@muddcs.claremont.edu> jwinstea@fenris.claremont.edu (Jim Winstead Jr.) writes:
>>(Note:  I will eventually make my patches for the GNU utilities
>>available, but it's not one of my top priorities.  And before any
>>bonehead who thinks he knows all there is to know about the GPL wants
>>to squeak - refresh yourself on how long it took NeXT to make
>>available their patches to the GNU stuff (gcc, in particular) to
>>people who had *paid* them for it.)
>>
>
>Do you know if your GNU patches are significantly different than Rick
>Faith's ports of GNU stuff?

To be honest, no - I don't know if he's tracked down the same problems
I did, but it's worth checking out.  :)  I was more concerned with
getting things done and out the door than trying anything intelligent
like seeing if anyone had done all the work already.  :)
-- 
                                    +      Jim Winstead Jr. (CSci '95)
                                    |      Harvey Mudd College, WIBSTR
                                    |   jwinstea@jarthur.Claremont.EDU
                                    + or jwinstea@fenris.Claremont.EDU
From: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Newsgroups: comp.os.linux
Subject: Re: AMD386 vs. Intel386 & external cache problems
Date: 14 Aug 92 16:25:47 GMT
Reply-To: tytso@ATHENA.MIT.EDU (Theodore Ts'o)
Organization: The Internet


   From: herr@iti.informatik.th-darmstadt.de (Gabor Herr)
   Date: Fri, 14 Aug 1992 08:48:10 GMT

   How do you explain the same errors on two completely different
   mainboards? The boards I tested had only one common factor: the AMD
   386.  

You were unlucky?  Seriously, I have a AMD 386, running at 40MHz, and it
runs Linux, with X11 at 1024x768 resolution, and it works just fine.
How do you explain *that*?  There have also be several people on
comp.os.linux who have chimed up in the past saying that they've run
Linux on the AMD 386 without any problems.  There's nothing like
existence proofs to carry the day!  :-)

							- Ted
Newsgroups: comp.os.linux
From: hargrove@theory.TC.Cornell.EDU (Paul H. Hargrove)
Subject: Mtools and AccessPC
Organization: Cornell University, Ithaca New York, USA
Date: Wed, 19 Aug 1992 20:16:20 GMT

Is there some difference between the DOS header provided by the mformat
command and that provided by a "real" MS_DOS FORMAT?
I'm under the impression that such a difference exists, because I've found
that a Mac IIsi running AccessPC (which allows it to use MS-DOS disks
transparently) does not recognize disks that got a DOS label from mtools,
while the same disketee, when formatted by MS-DOS, rather than using
fdformat + mformat, works just fine.
Is this a known problem?
-- 
Paul H. Hargrove 
hargrove@theory.tc.cornell.edu 
"A witty saying proves nothing." --Voltaire
From: usenet@novell.com (The Netnews Manager)
Newsgroups: comp.os.linux
Subject: Re: Xenix (tm) emulation for Linux almost works : -)
Summary: ATI Ultra.. does it work?
Date: 20 Aug 92 19:33:00 GMT
Organization: Novell Inc., San Jose, Califonia

I just grabbed the SLS package and installed it last night... very impressive.
To everyone involved : GREAT JOB!   I managed to get X running on my 
paradise IIs but I have a big monitor attached to an ATI ultra which I would
really like to use instead.  I read somewhere that there is a (BETA/ALPHA)
driver for the Ultra... if so where can I grab it from.
From: dvogt@novell.com (David Vogt)
Another question.  I'm not too clear as to where the SLS (0.96c I think)
fits in with 0.97 (shared libs, X vs gcc.2.2.2d, etc).  I'd really like to
contribute to Linux but I'm fairly new to unix so I want to get to the point
where I can build the kernel and update to the latest and greatest before I
get started on a project.  Thanks in advance!

Dave
dvogt@novell.com


Generic Disclaimer :  I speak only for myself
From: magidj@cellbio.duke.edu (Jonathan Magid)
Newsgroups: comp.os.linux
Subject: Re: NEW linux ftp site (banjo ressurected)
Date: 14 Aug 92 02:50:12 GMT
Organization: Duke University Medical Center, Dept. of Cell Biology

In article <3337@ra.nrl.navy.mil> eric@tantalus.dell.com (Eric Youngdale) writes:
>In article <4514@news.duke.edu> magidj@cellbio.duke.edu (Jonathan Magid) writes:
>> uploads are most encouraged.
>
>How about making the pub/pc-stuff/Linux/Incoming directory writable. :-)
>

done. oops. if you have any further reccomendations for such luxury
treatment, I can be reached at jem@reggae.oit.unc.edu.

jem

-- 
Jonathan Magid     magidj@marimba.cellbio.duke.edu 
Virtual pizza Delivery (tm)::faxed in 30 cycles or less or you get it
----------------------------------------FREE!!!-----------------------
From: dlbb0@diag.amdahl.com (David Black)
Newsgroups: comp.os.linux
Subject: bug w/xterm -ziconbeep
Date: 13 Aug 92 19:15:52 GMT
Organization: Amdahl Corporation, Cupertino, CA

I'm using an xterm with -C -iconify and -ziconbeep 100 options to put up
a Console icon that changes to "***Console" when output is received.
When the icon is opened and then re-iconified, the icon name changes to
garbage - things like "0", "2" or "@2".         

If there is a known fix, please post a follow-up. If not, I'll go
bug-hunting soon. ;)

-- 
David L. Black    I/O Diagnostics Development    Dial-up LINUX+archives 24 hrs.
dlbb0@amdahl.com  Amdahl Corp., Sunnyvale CA     408-773-0768 V.32bis/HST
Newsgroups: comp.os.linux
From: erc@unislc.uucp (Ed Carp)
Subject: Re: What happened to nic.funet.fi
X-Newsreader: Tin 1.1 PL5
Organization: Unisys Corporation SLC
Date: Thu, 20 Aug 1992 22:06:13 GMT

Jyrki Kuoppala (jkp@cs.HUT.FI) wrote:

: There's been problems with the line between Finland and Sweden.  The
: line is provided by the telecoms (I think both Finnish and Swedish),
: so direct your flames there.
: 
: There was a report that they found at least one problem with the line
: and fixed it, so line outages should be less frequent in the future.

If you've followed alt.security, you'll know that Jyrki is one of the most
talented posters there.  Be nice to him, and hope he hangs around.  His
expertise would be greatly valued here!
-- 
Ed Carp, N7EKG     erc@apple.com                801/538-0177
"This is the final task I will ever give you, and it  goes  on  forever.   Act
happy, feel happy, be happy, without a reason in the world. Then you can love,
and do what you will."           -- Dan Millman, "Way Of The Peaceful Warrior"
Newsgroups: comp.os.linux
From: ron@ramsey.cs.laurentian.ca (Ron Prediger [Velociraptor])
Subject: A technical question on CONTEXT (TASK) SWITCHING by the Kernel
Keywords: task switch, context switch, task state segment, kernel
Organization: Dept. of Computer Science, Laurentian University, Sudbury, ON
Date: Thu, 20 Aug 1992 16:49:28 GMT

Here is another technical question about the Linux kernel.  Context
switching in particular.

I have examined the task switch macro 'switch_to' in sched.h and have some
difficulty comprehending what exactly is happening.  Part of my problem is
deciphering the assembler syntax and how operands are being used (GNU RTL
syntax).

I believe, that after checking that the requested task is not the current
one, the code makes a far jump to the TASK STATE SEGMENT of the desired
process.  (Jumping/calling a task state segment or gate should result
in a task switch.)  My lack of understanding,  partly due to syntax , is
figuring out what is in operand %0 (is it the the contents of __tmp with
the upper 32 bits (__tmp.b) set to _TSS(n), the lower 16bits of which will
select a task state segment descriptor in the GDT ?)

Also,  how does the line with '_last_task_used_math' ever get executed ?
I assume it has to do with checking for which process last executed 
instructions with the floating point coprocessor (387) ?

Below is the actual GNU C define macro in case anyone wishes to explain
how it works:

        #define switch_to(n) {\
        struct {long a,b;} __tmp;\
        __asm__("cmpl %%ecx,_current\n\t"\
                "je 1f\n\t
                "movw %%dx, %1\n\t"\
                "xchgl %%ecx,_current\n\t"\
                "ljmp %0\n\t"\
                "cmpl %%ecx,_last_task_used_math\n\t"\
                "jne 1f\n\t"\
                "clts\n"\
                "1:"\
                "::"m" (*&__tmp.a),"m" (*&__tmp.b), \
                "d" (_TSS(n)), "c" ((long) task[n]) \
                :"cx");\
        }

Thank you very appreciatively!

Ron Prediger.
From: jhelberg@nl.oracle.com (Joost Helberg)
Newsgroups: comp.os.linux
Subject: Re: Troubles compiling lilo v3
Date: 17 Aug 92 07:03:56 GMT
Organization: Oracle Europe
X-Disclaimer: This message was written by an unauthenticated user
              at Oracle Corporation.  The opinions expressed are those
              of the user and not necessarily those of Oracle.
X-Newsreader: Tin 1.1 PL3

chbarry@athena.mit.edu (Charles H. Barry) writes:
: 
: I've been having the same problems compiling Lilo and ps-0.97 after
: installinf v0.97 and v0.97pl1.  Could someone please post or email me
: a description of the correct usr/include structure.
: 
: I've tried linking /usr/src/linux/include/linux to /usr/include/linux,
: but that doesn't work.  All I get is a lot of redefinition errors
: because both sys/types.h and linux/types.h are being included.  I've
: also tried linking the sys directory in similar fashion but that
: doesn't help either.
See my previous port about types.h AND:
  include genhd.h in common.h, Linux split the file hdreg.h into 2, the
  partition structure is defined in hdgen.h now.

--
   Joost Helberg                                Rijnzathe 6
   jhelberg@oracle.nl                           NL-3454 PV De Meern
   jhelberg@nl.oracle.com                       The Netherlands

   Oracle Europe BV                             Product Line Development	
   Phone: +31 3406 94211                        Fax:   +31 3406 65609
From: khera@cs.duke.edu (Vivek Khera)
Newsgroups: comp.os.linux
Subject: Re: Problems with GNUPLOT
Date: 19 Aug 92 21:46:06 GMT
Organization: Duke University CS Dept., Durham, NC
In-reply-to: bjones@cambria.columbus.oh.us's message of 16 Aug 92 04:08:22 GMT
X-Md4-Signature: 27fe86b284e7fd3ac3714316d9dd95e8

In article <N9wkPB2w165w@cambria.columbus.oh.us> bjones@cambria.columbus.oh.us (Bill Jones) writes:

   Then I tried to run it.  Running gnuplot (non-X11) under X gave
   me a correct plot but the screen failed to redraw itself correctly
   after exiting the plot.  If I "erased" the screen with my xterm,
   the screen became normal again.  Running this same version of
   gnuplot outside of X did not even give me a plot -- all I got was
   a video hash covering the upper third of my screen.

   Then I tried gnuplot_x11 under X.  I believe that this should
   give a plot in a X window of its own.  But, all I got was a
   message, "/lib/libc2.2.2", and then the shell prompt again.
   Anyone else run into problems like these?

you are not supposed to run gnuplot_x11 directly.  it is a helper
program that gnuplot runs to do the X window imaging when you do a
"set term x11" within gnuplot.  if the environment variable DISPLAY is
set when you run gnuplot, it will automatically select the terminal
type x11.
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Gradual Student/Systems Guy  Department of Computer Science
Internet:   khera@cs.duke.edu             Box 90129
            (MIME mail accepted)          Durham, NC 27708-0129 (919)660-6528
From: geek+@CMU.EDU (Brian E. Gallew)
Newsgroups: comp.os.linux
Subject: Re: HELP! File system problem
Date: 19 Aug 92 05:12:57 GMT
Article-I.D.: andrew.4eYYXNG00WCXQ10QgE
	<Aug.19.03.06.08.1992.18829@athos.rutgers.edu>
Organization: Administrative Systems, Carnegie Mellon, Pittsburgh, PA

Actually, I think the *nix solution for this is to use clri.  On the
other hand, nobody has ported it yet...

                                  -Brian

You drop the bomb -more-
It goes off... -more-
-------------------------------------------------------------------------
|  My cluelessness is more real than apparent...                        |
-------------------------------------------------------------------------
|  DEC measures their benchmarks with a calendar!!                      |
-------------------------------------------------------------------------
From: lfoard@Turing.ORG (Lawrence C. Foard)
Newsgroups: comp.os.linux
Subject: X*nix emulation test version on uunet
Date: 12 Aug 92 21:47:56 GMT
Organization: The Turing Project, Charlottesville Virginia.

Some of my mail to people who offered to test this bounced so I'm
posting a message about it. 

I've uploaded a test version of the X*nix emulation program to
ftp.uu.net, its in /tmp/xenix.tar.Z
I don't expect this to work with everything, I need to know what
it doesn't work with so I can fix it :-)

BTW-uunet files expire in 4 days.


-- 
>>Unix/C Contract worker available 5 years C/unix work experience<<  ______
Available for Telecommuting/Travel and contracts on the T Line       \    /
in the Boston MA area. Send me e-mail for a copy of my Resume.        \  /
       -- VWIS 508-793-9568 (2400 baud), Linux support BBS.--          \/