Linux-Misc Digest #984, Volume #23 Tue, 28 Mar 00 22:13:05 EST
Contents:
Re: I/O and IRQ port conflicts (Vladimir Florinski)
PPP problem (Chris Davis)
Re: How to install the SYM53C8xxx driver with Redhat 6.1? ("Jason Byrne")
Linux Installation Problems
Re: winlinux ("Root")
Re: Can't get "NOHUP" to work (L J Bayuk)
Re: PPP can only start as root? (Bill Unruh)
Re: I/O and IRQ port conflicts (Tim Hockin)
Re: HELP! Can't reboot w/ new glibc! (Juergen Heinzl)
Re: Major Login Problem (Alan Polinsky)
ld missing C++ library (Deja User)
XWindows (Glennzo)
Re: PPP problem (Bill Unruh)
NOT a Winmodem ("Mike Long")
Re: Athlon kernel compile (Ian Board)
Linux Took Over My Hard Disk? (Van Hoang)
Re: Re-sizing partition -- What's the best tool? ("David ..")
Re: Re-sizing partition -- What's the best tool? ("David ..")
Re: Precision of Linux's libm??? (Tom Mitchell)
----------------------------------------------------------------------------
From: Vladimir Florinski <[EMAIL PROTECTED]>
Subject: Re: I/O and IRQ port conflicts
Date: Tue, 28 Mar 2000 17:46:59 -0700
Corry Parrott wrote:
>
> does any one know how to fix an IRQ port conflict.... i cant configure my
> PCI modem correctly because it is trying to use the same IRQ as my video....
> in kppp: i get the response "devise is busy" or something like that..
>
> help
You are not making a lot of sense: video cards do not use interrupts. Perhaps
you could show some proof that what you've got is indeed an interrupt conflict?
--
Vladimir
------------------------------
From: Chris Davis <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.help
Subject: PPP problem
Date: Tue, 28 Mar 2000 20:09:11 -0500
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Anyone seen this problem before? I have PPP running fine on one of my
machines, but I'm having difficulty solving this problem on my laptop.
Any suggestions are appreciated.
This is reported by kppp upon start up:
"This kernel has no PPP support, neither compiled in nor via the kernel
module loader.
To solve this problem:
* contact your system administrator
or
* install a kernel with PPP support"
I've recompiled my kernel (many times over) with PPP support enabled,
both as a module and built-in and still get the same message.
This is what is found in /var/log/messages:
PPP: version 2.3.7 (deman dialing)
PPP line discipline registered.
No other messages are reported when kppp is started.
I noticed that lsmod does not show ppp or slhc loaded. Not sure why.
If it is not obvious, I'm running RH6.1. Kernel version 2.2.12-20.
I'll be happy to provide any more information that i may have
inadvertently omitted.
TIA,
chris
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------------------------------
From: "Jason Byrne" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: How to install the SYM53C8xxx driver with Redhat 6.1?
Date: Tue, 28 Mar 2000 17:31:54 -0800
>From what I recall on a friend's machine... the NCR53C8XX/SYM53C8XX are
equivalent.
I don't have any hints regarding SCSI cards under Linux - just remember the
two devices were equivalent from a *windows* hardware driver perspective.
<[EMAIL PROTECTED]> wrote in message news:8brjs9$9gq$[EMAIL PROTECTED]...
> Hi, there,
> I have an Asus SC875 SCSI card which is based on Symbios/LSI 875.
> I just installed Redhat 6.1. The installation program detected it
> and it used the NCR53C8XX driver instead.
> I want to try the new SYM53C8XX. I visited ftp.tux.org but it
> doesn't any a patch for kernel 2.2.12.
> If anyone know how to install SYM53C8XX on Redhat 6.1 machine,
> please tell me the procedure.
> Thanks!
> --
> Regards,
> Roger Shum
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
------------------------------
From: <[EMAIL PROTECTED]>
Subject: Linux Installation Problems
Date: Wed, 29 Mar 2000 01:30:31 GMT
I am a Linux Newbie for less than a week. I am having trouble getting
KDE working in OpenLinux 2.3. When installing the probe recognizes my
video card to be a S3 Virge rev 6 but it is a Diamond Stealth 3D 2000 so I
change to card. I test the settings and all appears fine. I then finish
installing. I get to the login screen, after installation, but when I hit
Ok I have a blue screen. I have tried letting the computer set for 20
minutes due to the fact my computer is only a Pentium 60 mhz. I have got
KDE to work before but cannot remember what I did to get it to work.
I bought this distrib. through cheapbytes.com and since it didn't come
with the commercial software I do not have OSS. When I had a running
system of linux I unable to get my Aztech Washington Sound Galaxy 16 card
working in Linux
Any Help would be Appreciated
Thanx
--
Posted via CNET Help.com
http://www.help.com/
------------------------------
From: "Root" <[EMAIL PROTECTED]>
Subject: Re: winlinux
Date: Tue, 28 Mar 2000 17:20:28 -0800
I dont think you should phase out anything, Just learn more:}
<[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
>
> oreomama wrote:
> >
> >
> > Well it took over 8 hours, but I now am the proud owner of Winlinux.
Now
> as
> > excited as kid in a candy shoppe. I am happily downloading new
programs.
> > Hopfully I can slowly phase out most of my Microsoft stuff in time.
> >
> > bi
> >
> > diane
> >
> > I'll be back, i know i will need help in the very near future
>
>
>
> good for you it takes 8 hours .....for me 24 hours!!!!...huh......at last
> can it run in japanese based win98......takes me 4 more hours to run my
> modem and downloding star office........I agree with you too...FEEL LIKES
> MONKEY WITH ROSES..........also need your help too very very soon...
>
> YELLOWMONKEY WITH ROSES
> >
> >
>
>
> --
> Posted via CNET Help.com
> http://www.help.com/
------------------------------
From: [EMAIL PROTECTED] (L J Bayuk)
Subject: Re: Can't get "NOHUP" to work
Date: 29 Mar 2000 02:05:35 GMT
[EMAIL PROTECTED] wrote:
>I'm trying to do a FTP download in the background and hang up the
>terminal but keep it going. I'm trying to use the nohup command, but
>it tain't working.
>..
>nohup 'ncftpget
>ftp://ftp.sourceforge.net/mounts/u4/mirrors/redhat/redhat/redhat-6.2/iso/zoot-srpms.iso'
>
>it flakes with the following output in the "nohup.out" file:
>
>/bin/nice: ncftpget
>ftp://ftp.sourceforge.net/mounts/u4/mirrors/redhat/redhat/redhat-6.2/iso/zoot-srpms.iso:
>No
> such file or directory
Lose the 'quotes'. nohup takes the command and its arguments as separate
arguments, like: nohup ncftpget url...
You'll probably need an & at the end too.
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Crossposted-To: comp.os.linux.networking
Subject: Re: PPP can only start as root?
Date: 29 Mar 2000 02:21:06 GMT
In <[EMAIL PROTECTED]> vsteel <[EMAIL PROTECTED]> writes:
>message is generated about ppp not available in the kernel or the module
>can't be found. A regular user can't run kppp but if he runs pppd and
>lets it try to negotiate ppp while there is no connection and fail, kppp
>will then work.
kppp has bugs. Either use a method which does not use kppp, or update
your kppp.
------------------------------
From: Tim Hockin <[EMAIL PROTECTED]>
Subject: Re: I/O and IRQ port conflicts
Date: 29 Mar 2000 02:20:22 GMT
Vladimir Florinski <[EMAIL PROTECTED]> wrote:
:> does any one know how to fix an IRQ port conflict.... i cant configure my
:> PCI modem correctly because it is trying to use the same IRQ as my video....
:> in kppp: i get the response "devise is busy" or something like that..
:>
:> help
: You are not making a lot of sense: video cards do not use interrupts. Perhaps
: you could show some proof that what you've got is indeed an interrupt conflict?
According to PCI spec, all PCI devicesmust be shared-interrupt capable.
--
Tim Hockin
[EMAIL PROTECTED]
[EMAIL PROTECTED]
This program has been brought to you by the language C and the number F.
------------------------------
From: [EMAIL PROTECTED] (Juergen Heinzl)
Crossposted-To: comp.os.linux.setup
Subject: Re: HELP! Can't reboot w/ new glibc!
Date: Wed, 29 Mar 2000 02:22:49 GMT
In article <[EMAIL PROTECTED]>, Jean-Sebastien Morisset wrote:
>This is really frustrating. I installed glibc v2.1.3 on a RH 6.1 Linux, and
>no matter where I install it (prefix of /usr/local or /opt/glibc-2.1.3 as I
>usually do it), when I reboot, there are some library files which remain
>open (verified with lsof). This means umount can't un-mount /usr or /opt
>(depending on where it's installed). The /etc/rc.d/rc6.d/S01reboot script
>gets stuck and the system sits there.
>
>Can anyone provide any suggestions?
umount itself requires libc already so the system libraries belong
to /lib, so might be this is the problem. Language catalogs can be
a problem too, so if you've set $LANG for instance umount is going
to keep open some file on /usr o. /opt.
[...]
Ta',
Juergen
--
\ Real name : Jürgen Heinzl \ no flames /
\ EMail Private : [EMAIL PROTECTED] \ send money instead /
------------------------------
From: Alan Polinsky <[EMAIL PROTECTED]>
Crossposted-To: linux.redhat.misc
Subject: Re: Major Login Problem
Date: Tue, 28 Mar 2000 21:31:38 -0500
At one point I had a similar problem with one of my machines. I luckily
had a boot floppy which allowed me to boot and mount the hard drive.
There was a problem with the password file which for some reason was
missing the first character of the user id. I edited the file and was
able to boot.
------------------------------
From: Deja User <[EMAIL PROTECTED]>
Subject: ld missing C++ library
Date: Wed, 29 Mar 2000 02:16:31 GMT
Hi,
I just installed Linux on a machine. It is my first time. I tried
to build a sample C++ program with gcc. Unfortunately, my program
failed to link. My program is the classic one:
#include <iostream>
int main()
{
std::cout << "Hello" << std::endl;
return 0;
}
gcc (version 2.91.66) compiles it without complaints. But when it
tried to link it with some library implementing iostream, I got the
following error messages:
undefined reference to `endl(ostream &)'
undefined reference to `cout'
So what should I do to make gcc find the libraries?
Thanks,
Liu Bin
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: Glennzo <[EMAIL PROTECTED]>
Subject: XWindows
Date: Wed, 29 Mar 2000 02:30:34 GMT
Hi all. Can anyone give me a little insight as to what the following
messages mean?
Xlib: Connection to ":0.0" refused by server
Xlib: Client is not authorized to connect to server
kmail: cannot connect to xserver :0
This happens when I try to run the mail program in KDE. When I click on the
icon for the mail program, I hear some disk activity for a second or two,
but the program never comes up. Was also happening yesterday when trying to
run Netscape, which I'm using right now to send this message. (Netscape
started working by itself today.)
Thank you...
Glenn Johnson
--
Posted via CNET Help.com
http://www.help.com/
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Crossposted-To: comp.os.linux.setup,comp.os.linux.help
Subject: Re: PPP problem
Date: 29 Mar 2000 02:42:18 GMT
In <[EMAIL PROTECTED]> Chris Davis <[EMAIL PROTECTED]> writes:
>machines, but I'm having difficulty solving this problem on my laptop.
>Any suggestions are appreciated.
>This is reported by kppp upon start up:
>"This kernel has no PPP support, neither compiled in nor via the kernel
>module loader.
kppp is buggy. My advice is get rid of it. It adds a layer of cruft
between you and your connection. If you love kppp, get a newer version.
> To solve this problem:
> * contact your system administrator
> or
> * install a kernel with PPP support"
The proper response is the third-- contact the kppp writers and politely
tell them to fix kppp.
To test is ppp is in your kernel, run, as root
/usr/sbin/pppd
you will get 10 sec of garbage on the screen. ONly if you do not should
you start to worry.
>I've recompiled my kernel (many times over) with PPP support enabled,
Don't. You are far more liable to break something than fix anything,
especially as the above error message is a lie.
All distributions have ppp as a module-- do you really think that they
do not know that the primary use of linux is to connect to the internet?
------------------------------
From: "Mike Long" <[EMAIL PROTECTED]>
Subject: NOT a Winmodem
Date: Tue, 28 Mar 2000 18:45:29 -0800
I have a 3Com USRobotics 56k Faxmodem. It is NOT a Winmodem, but I can't get
it to work in Redhat 5.2.
Do I need a driver?
Where can I find one?
Mike
------------------------------
From: Ian Board <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware
Subject: Re: Athlon kernel compile
Date: Wed, 29 Mar 2000 02:48:53 GMT
Janet wrote:
>
> Hi,
>
> I'm about to compile kernel 2.2.14 for my athlon box and was wondering
> whether to enable MTRR (there have been a lot of posts about needing to
> disable it in earlier kernel versions; what about this one?). Also, which
> processor type should I choose?
>
> Thanks,
> Janet
I have MTTR set on mine - as I recall, it is an optimization that has to
do with not caching writes through the AGP port (in that case, it is
fine, since I am using AGP card).
For processor type, I use 486- I did the same thing when I had a
pentium-pro box. Again - it works fine.
Hope this helps -
Ian
------------------------------
From: Van Hoang <[EMAIL PROTECTED]>
Subject: Linux Took Over My Hard Disk?
Date: Wed, 29 Mar 2000 02:55:03 GMT
I reformatted (after deleting partitions, fdisk/mbr, etc.) my Linux
hard disk then try to install Win98/Win95. But none of the
installation works! Win98 reported "Corrupted Registry" at last
reboot! Win95 refused to install with error message "Not enough
memory..." or "Can't load font..." then freezed!!!
Nevertheless, I can re-install Linux without any problem!
Please help me to take control of my hard disk.
Thanks.
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: "David .." <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.admin
Subject: Re: Re-sizing partition -- What's the best tool?
Date: Tue, 28 Mar 2000 20:49:51 -0600
Jean-Sebastien Morisset wrote:
>
> Are there any good tools to re-size partitions on Linux? I'm talking about
> shrinking/growing "on the fly" w/o needing to backup/restore, etc.
>
> Thanks,
> js.
> --
> Jean-Sebastien Morisset, Sr. UNIX Admin <[EMAIL PROTECTED]>
> Personal Homepage <http://www.jsmoriss.dyndns.org/>
> UNIX, Internet, Homebrewing, Cigars, PCS, CP2020 and other Fun Stuff...
> This is Linux Country. On a quiet night you can hear Windows NT reboot!
I don't know if this is what you are looking for since I have never used
it, but it is a partitioning tool. Could be worth a look.
--
Due to extreme SPAM abuse! Remove z's and x's from above to reply.
Thank the spammer's A..holes that they are. Still can't reach me?
Then your address range is already blocked due to previous spam.
Sorry! I hate spam!!
------------------------------
From: "David .." <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.admin
Subject: Re: Re-sizing partition -- What's the best tool?
Date: Tue, 28 Mar 2000 20:51:45 -0600
Jean-Sebastien Morisset wrote:
>
> Are there any good tools to re-size partitions on Linux? I'm talking about
> shrinking/growing "on the fly" w/o needing to backup/restore, etc.
>
> Thanks,
> js.
> --
> Jean-Sebastien Morisset, Sr. UNIX Admin <[EMAIL PROTECTED]>
> Personal Homepage <http://www.jsmoriss.dyndns.org/>
> UNIX, Internet, Homebrewing, Cigars, PCS, CP2020 and other Fun Stuff...
> This is Linux Country. On a quiet night you can hear Windows NT reboot!
I don't know if this is what you are looking for since I have never used
it , but it might be worth a look. It is a partitioning tool I have
heard.
ftp://ftp.falsehope.com/pub/parted/
--
Due to extreme SPAM abuse! Remove z's and x's from above to reply.
Thank the spammer's A..holes that they are. Still can't reach me?
Then your address range is already blocked due to previous spam.
Sorry! I hate spam!!
------------------------------
From: Tom Mitchell <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Precision of Linux's libm???
Date: Tue, 28 Mar 2000 19:01:19 -0800
Reply-To: [EMAIL PROTECTED]
On Thu, 17 Feb 2000, Johan Kullstam wrote:
> From: Johan Kullstam <[EMAIL PROTECTED]>
> Subject: Re: Precision of Linux's libm???
>
> chad <[EMAIL PROTECTED]> writes:
>
> > I am looking into doing so molecular modeling on Linux platforms because
> > they are cost effective. After running some tests, I find errors,
> > albeit small, in the results as compared to similar tests on SGIs or
> > SUNs.
>
> most CPUs use IEEE 64 bit floating point (or 32 bit sometimes). intel
> uses 80 bit floating point registers.
....
yes, internal registers....
....
> some of your calculation procedes with 64 and some with 80 bit
> precision. if your algorithm is reasonably well-behaved in 64 bits,
> it should work just fine.
Caution the intel 80 bit registers are data+exponent. The
precision is not 80 bits (64 bits, sign?). The same number
as and external 64 bit float has 52(sign?) bits...
http://developer.intel.com/design/intarch/manuals/27216403.pdf
For newer Pentium some folks are using the SIMD/MMX
instructions... in library functions. Watch out for
functions like sin() and sqrt() that are sometimes hardware
instructions sometimes library functions.
And the new IA64 has 82 bit internal floating point regs with 64
bits of significand. http://developer.intel.com/vtune/cbts/ia64/index.htm
> > I have heard about this in the past when talking to some
> > professors but I never thought much about it until now. Knowing that
> > errors propagate and grow (especially after weeks of computation),
Weeks!!!... you do need to get this right ;-)
> well designed algorithms minimize this growth.
yep.
> > Can it be fixed?
If it is wrong sure.
> > Am I over reacting?
yes/no, It may matter. Simple tests point to potential
problems. Most often it will be your test.. but not always.
Any author needs to do some basic numerical analysis of his
application. As the exponents vary by orders of magnitude
it matters more and more.
Just use good sense, good science and caution. Try to not to
look silly with sample code that "does not correctly"
compare or converge at the last (15th) digit and yet defines
pi as 3.14159 in one file and 3.1415 in another.
Modern compilers will try to keep things in registers. On
intel hardware 80 bit registers may come to play. On other
machines instructions like multiply+add (SGI/HP/IBM, madd)
might operate on 'hidden' bits. Some MIPS (sgi) processors
round on the store so the MADD instruction gets to operate
on extra guard hidden bits in normal mode. This can cause
data mis-matches in the last bit depending on the
library/optimization/debugger.
Most quant chem classes spend weeks on accuracy and
precision issues. Build those lessons into your
applications and test suites. Consider basic numerial
analysis tests too (call a math guy this is hard stuff).
This also matters for multi processing where the order of
execution is decomposed and different results are seen with
different processor counts because of rounding and joining
of partial results. Sometimes the difference is startling
and discovers flaws in the code. Run your code and data on
as many machines and numbers of processors as you can.
Understand the differences. Finds ways to tinker with the
data set to understand the envelope of the code. Build data
sanity checkers.
Experiment.... try operating on a list of very large and
very small numbers (+16, 32 or 100 orders of magnitude
different). Sort them and sum,randomize them and sum, sort
inverted and sum. Decompose for multiprocessor suming...
(sum of sums).
Then look at what you are doing in your code.
Note that ieee defines multiple rounding modes....
These can be tested for and specified on various
systems.
Avoid dividing by zero... there is no correct answer for 4/0
yet ieee does define some 'legal' actions, understand NaN.
Have fun,
mitch
------------------------------
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End of Linux-Misc Digest
******************************
