Linux-Development-Sys Digest #378, Volume #6      Fri, 5 Feb 99 19:13:53 EST

Contents:
  Re: Linux apps in win2000 port news! (D. J. Birchall)
  can kernel be locked on one processor in dual processor system? ("Ross Henderson")
  Re: How To do a System app with user privileges (Paul Flinders)
  Re: ppp and 2.2.1 (Dr. Henrik Seidel)
  Re: Can't umount /usr: device busy (Martin Recktenwald)
  Re: unresolved symbols with 2.2.0 (Martin Recktenwald)
  Re: K6-2 and Linux, Are there any Bug? ([EMAIL PROTECTED])
  Re: unresolved symbols with 2.2.0 (Steve Johnson)
  Re: ssa driver for linux 2.2 (Andy Key)
  Re: I want to be a PPPserver ! (Tor Arntsen)
  Re: NT mouse frenzy related to mouse type? (was: Modest next goal  for Linux) ("Earl 
Malmrose")
  Re: dir structure in tarball (Martin Recktenwald)
  Re: ssa driver for linux 2.2 (Andy Key)
  Re: Why I'm dumping Linux, going back to Windblows (Bandyopadhyay Rajarshi Dipak)
  Re: NT mouse frenzy related to mouse type? (was: Modest next goal  for Linux) (Simon 
Kinahan)
  Re: BeOS and Linux ([EMAIL PROTECTED])
  ssa driver for linux 2.2 (Oktay Istanbullu)
  Re: glibc or glibc? (Peeter Joot)

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

From: [EMAIL PROTECTED] (D. J. Birchall)
Crossposted-To: 
comp.os.linux.development.apps,comp.os.linux.hardware,comp.os.linux.misc,comp.os.linux.advocacy
Subject: Re: Linux apps in win2000 port news!
Date: 4 Feb 1999 16:20:45 GMT
Reply-To: [EMAIL PROTECTED]

On 03 Feb 1999 15:57:53 -0500, Adam P. Jenkins <[EMAIL PROTECTED]> wrote:

>to start a non-gui Unix app you'd still need to actually log into the
>Unix machine, whereas if you had a Unix emulator you could just run
>them on your NT machine too.

I have to wonder what sort of performance an NT system emulating
UNIX would deliver.  Has anyone played with this?

-Dan

-- 
Daniel Birchall, VP - Technology, Digital Facilities Management.
[EMAIL PROTECTED] is no longer a real address for me,
since a bunch of illiterates spammed it! :)  My username is djb.
http://www.scream.org/maisha/ is the Unofficial Maisha Fan Site.

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

From: "Ross Henderson" <[EMAIL PROTECTED]>
Subject: can kernel be locked on one processor in dual processor system?
Date: Fri, 5 Feb 1999 11:26:46 -0500

Hello,


We are interested in running a realtime process
on a dual-processor Linux machine.  Can anyone tell
me if the 2.2 Linux kernel can be made to run on
one CPU while the other CPU locks the application
process?  We're doing data acquisition, and the
less interrupts due to OS calls, the better.

Thanks.

Ross Henderson
Laboratory of Neuropsychology
Neural Coding and Computation
National Inst. of Mental Health
National Institutes of Health
Bldg. 49, Room 1B-80
Bethesda, MD  20892
tel:  301-496-5625 ext. 251



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

From: Paul Flinders <[EMAIL PROTECTED]>
Subject: Re: How To do a System app with user privileges
Date: 05 Feb 1999 17:11:06 +0000


Dennis Kikendall <[EMAIL PROTECTED]> writes:

> I am developing a system app that will be running with root priviledges
> and will take requests over a socket. Based on a supplies user ID,  and
> password I would like to do a setuid to the user to process the request.
> How can I validate ( encrypt ) the supplied clear text password to
> compare it with that returned by getpwent().  Can a root process do this
> encryption ?

Any process can do this check. see crypt(3)

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

From: [EMAIL PROTECTED] (Dr. Henrik Seidel)
Subject: Re: ppp and 2.2.1
Date: 5 Feb 1999 10:09:13 GMT

[Posted and mailed]

In article <[EMAIL PROTECTED]>,
        Joe Pfeiffer <[EMAIL PROTECTED]> writes:
> [EMAIL PROTECTED] (Dr. Henrik Seidel) writes:
>> 
>> alias ppp-compress-21 bsd_comp
>> alias ppp-compress-24 ppp_deflate
>> alias ppp-compress-26 slhc 
> 
> Where are these aliases documented?  I've had to work a few out, and
> it's always been by guess.  I've looked through the modules
> documentation, and haven't been able to find any sort of comprehensive
> list...

They are not documented (at least not in the kernel sources, neither in the
ppp driver itself nor in the Documentation subtree). I hope as well that
somebody creates a new file where module aliases are documented.

-- 
Dr. Henrik Seidel, http://www.mpimg-berlin-dahlem.mpg.de/~seidel/
Max Planck Institute for Molecular Genetics
14195 Berlin, GERMANY, Ihnestrasse 73
tel: ++49-30-8413-1613 fax: ++49-30-8413-1384
see my home page for my public PGP key

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

From: Martin Recktenwald <[EMAIL PROTECTED]>
Subject: Re: Can't umount /usr: device busy
Date: 05 Feb 1999 11:16:04 +0100

Karl Heyes <[EMAIL PROTECTED]> writes:

> ldd will tell you of the libraries the binary has to have available before
> it even starts up.

Note that ldd does _not_ necessarily show what library a currently
running program is using. It shows what library it would be using if
you would start it _now_. For example, if /usr/lib/libc.so was not
available at startup time (because /usr was not mounted) a running
program might be linked against /lib/libc.so but ldd would show, after 
mounting /usr, that the program uses /usr/lib/libc.so (if this is the
way it is configured in /etc/ld.so.conf).

   Martin.
-- 
"Linux 2.2.1 - the Brown Paper Bag release"
                                 Linux Torvalds on linux-kernel ML

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

From: Martin Recktenwald <[EMAIL PROTECTED]>
Subject: Re: unresolved symbols with 2.2.0
Date: 05 Feb 1999 11:18:15 +0100

Frederik Arbeiter <[EMAIL PROTECTED]> writes:

> Does anybody know what changed? And how to get things working again?

You didn't possibly compile the kernel with versioned modules? Have a
look at /proc/ksyms. All those functions are still there in 2.2.

   Martin.
-- 
"Linux 2.2.1 - the Brown Paper Bag release"
                                 Linux Torvalds on linux-kernel ML

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

From: [EMAIL PROTECTED]
Crossposted-To: alt.os.linux.slackware,comp.os.linux.hardware,comp.os.linux.misc
Subject: Re: K6-2 and Linux, Are there any Bug?
Date: Fri, 05 Feb 1999 18:45:13 GMT

I'm also using a K6-2 300 (overclocked to 100x3.5) and 128mb of PC100 RAM in
Linux just fine.

This is on an Asus P5a motherboard (Alladin V chipset I think).

As for the TX chipset, it can't cache more than 64mb of RAM.

Chris
In article <[EMAIL PROTECTED]>,
  see-signature-for-email-address---junk-not-welcome wrote:
> "Javier Pulido" <[EMAIL PROTECTED]> writes:
> |Problems with the booting of linux in a computer AMD K6-2 (300 MHz) with
> |i430TX (no AGP) and 128 MB, two hard drives and 1 CDROM.  Can you help me?
>
> Does an "i430TX" motherboard support a 300 MHz K6-2 processor and
> 128 MB of RAM?
>
> --
> ------------------------------------------------------------------------
> Timothy J. Lee                                                   timlee@
> Unsolicited bulk or commercial email is not welcome.             netcom.com
> No warranty of any kind is provided with this message.
>

============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/       Search, Read, Discuss, or Start Your Own    

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

From: Steve Johnson <[EMAIL PROTECTED]>
Subject: Re: unresolved symbols with 2.2.0
Date: Fri, 05 Feb 1999 12:16:54 -0700



Frederik Arbeiter wrote:

> I wrote a device driver for an AD Card. It worked well with v2.0.x, but
> now with v2.2.0 I get a lot of unresolved references (printk, put_user
> and other quite essential functions )when I try to 'modprobe' it.
>
> Does anybody know what changed? And how to get things working again?
>
> --
> Frederik Arbeiter
> /lib/modules/2.2.0/misc/pacp12.o: unresolved symbol request_region

Frederik,
    You may have the same problem that I did.  The names of kernel symbols get
modified if you are now compiling with SMP turned on (which happened to me
when I went from 2.0.38 to 2.2.0).

>grep request_region /proc/ksyms
c0119650 request_region_Rsmp_6d32b2d7

    The smp_ stuff gets added into the kernel calls so that non-SMP drivers
don't try calling SMP kernels (as I understand it).  I fixed that in my code
by explicitly including /usr/src/linux/include/linux/modversions.h as my first
include.  Now it works correctly for SMP and non-SMP.

--
 Steve Johnson                          | Internet:  [EMAIL PROTECTED]
 Hewlett-Packard Company                |    phone:  (208) 396-6464
 Mopy/Copy Solutions,  M/S 457          |      Fax:  (208) 396-7848
 11311 Chinden Blvd, Boise, ID  83714   |



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

From: [EMAIL PROTECTED] (Andy Key)
Subject: Re: ssa driver for linux 2.2
Date: 5 Feb 99 19:30:01 GMT

In article <[EMAIL PROTECTED]>,
        [EMAIL PROTECTED] (Oktay Istanbullu) writes:
>ssa (for Serial Storage Architecture) is used to manage high performance disks. 
>It has been developped by IBM. Writing a driver was planed but it brought no 
>result.
>(see http://www.kfki.hu/ftp/linux/sunsite.unc.edu/ALPHA/linux-ha/
>High-Availability-HOWTO-7.html )
>
>I want to write an ssa support for linux kernel 2.2.
>The ANSI draft estimates the differences between scsi and 
>ssa less than 15 percent, I
>studied the scsi driver of the kernel and I want to adapt it to ssa specifs.
>(ANSI drafts can be found at 
>ftp://ftp.symbios.com/pub/standards/io/x3t10.1/drafts/ )
>
>The aim is to have an interface for ssa adapters like the one 
>scsi adapters have.
>If someone's interested, he's welcome. I need help.
>If any suggestion too.
>
>Thanks.
>[EMAIL PROTECTED]

Would anyone out there like to comment on how desirable they find putting
SSA storage on Linux systems.

SSAs wiring is considerably smaller and more manageable than SCSI, and
multi-initiator (ie: HA or cluster) configurations are simpler.
As SSA disks are wired in loops, there is even protection against single link
failure here.

Today SSA adapters exist from IBM which allow the connection of upto 96 disks
to be connected to an adapter, each of which can be 9.1GB. These disks can be
combined via RAID to get redundancy. There is even fast write support and
dual-initiator RAID-5 support in the latest adapter (IBM Serial RAID adapter
for Windows NT).

There are other vendors with SSA offerings too.

Surely hardware RAID solutions like this must be preferrable to md and
other software drivers.

I'd expect all those people running Linux servers, including FTP, News and WWW
servers could really benefit from this stuff. Do you think so too?

{{{ Andy Key

http://www.interalpha.net/customer/nyangau/


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

From: [EMAIL PROTECTED] (Tor Arntsen)
Subject: Re: I want to be a PPPserver !
Date: 5 Feb 1999 11:17:55 GMT

In article <[EMAIL PROTECTED]>,
        YANG Tong <[EMAIL PROTECTED]> writes:
>
>Hello !
>
>PPP is very difficult to configure when I want to use it as server !

True, most descriptions apply to clients only.  However, it's actually
simple, even simpler than setting up a client.  Below I'll describe how I
did it.  However, just yesterday I found a reference to a possibly 
useful document:

http://www.swcp.com/~jgentry/dialin2.html

I haven't looked at it much yet, I think it uses mgetty though (which is 
what I'm using).

Here is a quick description of how I did it a while back:

- Installed pppd as per pppd's installation description

- Enabled ppp in kernel, rebuilt & restarted

- got mgetty, enabled AUTO_PPP in the Makefile (-DAUTO_PPP in CFLAGS),
  built and installed it

- In the directory /usr/local/etc/mgetty+sendfax/ I edited the file
  login.config to enable automatic PPP startup on receipt of LCP config
  request, that was just to remove a # in front of /AutoPPP something
  (Actually, I removed the whole file, made a new one, and put in this
  slightly different single line:)
  /AutoPPP/ -     a_ppp   /usr/sbin/pppd
  THEN (important, or nothing works): chmod 0600 login.config

- In /etc/inittab I put this line:
s2:45:respawn:/sbin/mgetty -x 9 -s 38400 -D /dev/ttyS1
  You must find what your own serial port is, of course.

- In /etc/ppp I have these files:

   /etc/ppp/options:
   auth
   debug
   lock
   asyncmap 0
   crtscts
   proxyarp

   /etc/ppp/chap-secrets:
   Here you just put in something like:
   username  servername  passwd ipaddress(of client)
   Let's say your user is 'santa', your server's pppd interface address
   is 'serverppp', santa's password is christmas, santa's connection should
   be given the address 'dial3' (all defined in /etc/hosts or somewhere)
   Then /etc/ppp/chap-secrets should look like this:
   santa        serverppp       "christmas"     dial3
   These /etc/ppp files should be read/writable by root only.

That's all I think.  But have a look at that web page, it could be more
useful than my description, I don't know.

- Tor

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

From: "Earl Malmrose" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.advocacy
Subject: Re: NT mouse frenzy related to mouse type? (was: Modest next goal  for Linux)
Date: Fri, 5 Feb 1999 11:40:12 -0800

Chris Green wrote in message ...
> Here's another easy way to peg an NT machine at 100% cpu:
>
> Bring up the control panel.

I don't believe you. That's stupid, if true. Let me try it...Yup. You're
right. Unbelievable.



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

From: Martin Recktenwald <[EMAIL PROTECTED]>
Subject: Re: dir structure in tarball
Date: 05 Feb 1999 11:20:46 +0100

azra <[EMAIL PROTECTED]> writes:

> anyone else loose thier most current /usr/src/linux as the new archive
> is not in /usr/scr/linux2.2.1 like I figured it would be (my bad for not
> checking )  but overwrote my copy of 2.0.35 as that's where the symlink
> /usr/src/linux was pointing

It's _alway_ /usr/src/linux. If it is not the first kernel you're
installing you should know it. And if it is the first time ... well,
now you know you should _always_ check tar archives before unpacking
:-)

   Martin.
-- 
"Linux 2.2.1 - the Brown Paper Bag release"
                                 Linux Torvalds on linux-kernel ML

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

From: [EMAIL PROTECTED] (Andy Key)
Subject: Re: ssa driver for linux 2.2
Date: 5 Feb 99 19:38:42 GMT

In article <[EMAIL PROTECTED]>,
        [EMAIL PROTECTED] (Oktay Istanbullu) writes:
>ssa (for Serial Storage Architecture) is used to manage high performance disks. 
>It has been developped by IBM. Writing a driver was planed but it brought no 
>result.
>(see http://www.kfki.hu/ftp/linux/sunsite.unc.edu/ALPHA/linux-ha/
>High-Availability-HOWTO-7.html )
>
>I want to write an ssa support for linux kernel 2.2.
>The ANSI draft estimates the differences between scsi and 
>ssa less than 15 percent, I
>studied the scsi driver of the kernel and I want to adapt it to ssa specifs.
>(ANSI drafts can be found at 
>ftp://ftp.symbios.com/pub/standards/io/x3t10.1/drafts/ )
>
>The aim is to have an interface for ssa adapters like the one 
>scsi adapters have.
>If someone's interested, he's welcome. I need help.
>If any suggestion too.
>
>Thanks.
>[EMAIL PROTECTED]
>

Oktay,

I have posted a reply to your post on comp.os.linux.development.system.
Unfortunately my mail system here isn't geared to letting me inline a
copy here (you'll have to look in the newsgroup).

I too am interested in writing a Linux SSA device driver.
More than that, I actually work at IBM, and one of my briefs is
IBM SSA adapter firmware development, and also PC device driver development.
I can tell you that although the downstream (adapter <-> disk) protocols
are SCSI over SSA, the interface presented by IBM SSA adapters to the
operating system (adapter <-> host) is not SCSI. Thus a device driver
for IBM SSA would not be best built (IHMO) from a SCSI base.
IBM SSA adapters are really the only serious contender in this (yes, I know,
I would say this), although there could be a non-IBM SSA Linux driver, I don't
really see it going anywhere.

We are not alone in wanting a Linux driver. I hope that interest grows
further within IBM, so that the necessary detailed protocol information
is released.

I would appreciate it if you could keep this note private between myself
and yourself.

-- 
{{{ Andy Key

http://www.interalpha.net/customer/nyangau/


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

Crossposted-To: alt.os.linux,comp.os.linux.development.apps,comp.os.linux.setup
From: [EMAIL PROTECTED] (Bandyopadhyay Rajarshi Dipak)
Subject: Re: Why I'm dumping Linux, going back to Windblows
Date: Fri, 5 Feb 1999 07:23:44 GMT

In article <794a36$[EMAIL PROTECTED]>, mark@com wrote:
In article <793v6a$2qh$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] says...
>
>[EMAIL PROTECTED] wrote:
 
>
>Man pages are not and IMHO should not be full-blown manuals. 

Hi all
I agree. For full-blown stuff we have info pages. Put all the examples
etc you like there. Man pages should be concise, just for the reference
when you have forgotten an option or switch in a command.

--Raj



-- 


================================================================
        Let me tonight look back at the span
                'Twixt dawn and dark & to my conscience say:
        "Because of some good act to beast or man,
                The world is better that I lived today."
                                
                                        ---Ella Wheeler Wilcox
=================================================================                      
                 

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

From: Simon Kinahan <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.advocacy
Subject: Re: NT mouse frenzy related to mouse type? (was: Modest next goal  for Linux)
Date: Fri, 05 Feb 1999 08:10:25 +0000

Per Olsson wrote:
> 
> I didn't notice raised CPU load earlier. I must have done the test only with
> the mouse pointer inside an application window then. If I do the test with
> the mouse pointer on the desktop (background) the CPU load goes to 100% with
> the PS/2 mouse also.

You know you can draw waveforms in the task manager by doing this :)

Simon

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

From: [EMAIL PROTECTED]
Subject: Re: BeOS and Linux
Date: 3 Feb 1999 11:43:05 +0100

Tim Smith <[EMAIL PROTECTED]> wrote:
> Arthur Chiu  <[EMAIL PROTECTED]> wrote:
>>BeOS supports state of the art hardware technology.  Linux is a few steps behind.

> The hardware listed at www.be.com, at least for the Intel version, seems to be
> a subset of what Linux supports.  Where is Linux behind Be?
Indeed, the compatibility list for BeOS is quite short.
By the way, does anybody know of a BeFS driver for Linux (even read-only)?

-- 
Alain Borel
<[EMAIL PROTECTED]>

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

From: [EMAIL PROTECTED] (Oktay Istanbullu)
Subject: ssa driver for linux 2.2
Date: 5 Feb 1999 12:45:13 GMT
Reply-To: [EMAIL PROTECTED]

ssa (for Serial Storage Architecture) is used to manage high performance disks. 
It has been developped by IBM. Writing a driver was planed but it brought no 
result.
(see http://www.kfki.hu/ftp/linux/sunsite.unc.edu/ALPHA/linux-ha/
High-Availability-HOWTO-7.html )

I want to write an ssa support for linux kernel 2.2.
The ANSI draft estimates the differences between scsi and 
ssa less than 15 percent, I
studied the scsi driver of the kernel and I want to adapt it to ssa specifs.
(ANSI drafts can be found at 
ftp://ftp.symbios.com/pub/standards/io/x3t10.1/drafts/ )

The aim is to have an interface for ssa adapters like the one 
scsi adapters have.
If someone's interested, he's welcome. I need help.
If any suggestion too.

Thanks.
[EMAIL PROTECTED]


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

From: [EMAIL PROTECTED] (Peeter Joot)
Subject: Re: glibc or glibc?
Date: 5 Feb 1999 22:55:57 GMT
Reply-To: [EMAIL PROTECTED]

On Fri, 5 Feb 1999 14:33:21 -0800, asdf <[EMAIL PROTECTED]> wrote:
>What is the difference between glibc-2.0.112 and glibc-2.0.7pre6?  Which one
>is better, why is there a number skip?

2.0.112 is the development version.  It will eventually be released as 
glibc-2.1.

Peeter

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


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