Linux-Hardware Digest #5, Volume #14 Sat, 9 Dec 00 08:13:03 EST
Contents:
Re: ECC RAM supported by Linux? (Rico Tudor)
Re: ECC RAM supported by Linux? (Rico Tudor)
Trying to port a hacked CMI8330 audio setup from RH6.2 to Potato... (Michael V.
Ferranti)
ZIP Plus - need imm.tar.gz (Doug)
What is the command to . . . ? ([EMAIL PROTECTED])
ASUS CUV4X sound ([EMAIL PROTECTED])
Re: What is the command to . . . ? ([EMAIL PROTECTED])
Re: hdh: <3>ide-scsi unsupported command dev 22:40 ([EMAIL PROTECTED])
Re: Telnet help please (".")
IRQ Problem with Printer (Michael Steinhauser)
<no dial tone> (Aranwen)
Re: Linux with Abit KT7 & AMD Duron (Erling R Elvsrud)
Linux + big HDD partition ("Mike")
howto load kernel debug symbol to gdb ("amir")
Re: What is the command to . . . ? (Markus Amersdorfer)
Re: Linux with Abit KT7 & AMD Duron (jwk)
please help !!!! Format hd problem ("Fabien Guignon")
Re: please help !!!! Format hd problem (sena)
New Epson Printers (G�sli L�rus Valsson)
Re: ECC RAM supported by Linux? (CBFalconer)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Rico Tudor)
Subject: Re: ECC RAM supported by Linux?
Date: 9 Dec 2000 05:10:51 GMT
Linux, and any other OS, will benefit from ECC (Error Correcting Code) if
(1) Your PC is outfitted with "ECC" main memory, and
(2) The motherboard chipset has ECC circuitry, and
(3) The circuitry is enabled by the BIOS
Mainstream PC architecture defines a 72-bit wide path to main memory:
64 for data and 8 for parity (formally, the ECC syndrome). Most people
save money and purchase a 128-MByte DIMM like
http://www.crucial.com/index.asp?imodule=CT16M64S4D8E
This has 16 RAM chips in total, 8 per side, and costs $65.69 right now.
If the chipset and BIOS support ECC, it must be disabled.
If you bought a 128-MByte ECC DIMM like
http://www.crucial.com/index.asp?imodule=CT16M72S4D8E
you would see 18 chips, 9 per side, and would pay $87.29. If the chipset
and BIOS support ECC, you would want to enable the ECC function.
Memory failures can be caused by cosmic rays, alpha particles, a
faulty RAM chip, bad power, or marginal signals around the system.
Assuming an error in the data or syndrome bits, the ECC mathematical
function used in 72-bit systems can detect all 1- and 2-bit errors.
Further, the function can correct all 1-bit errors. Such correction is
applied by the chipset "on the fly", meaning there is no CPU intervention.
Intel logs this "soft error" within their chipsets, for later access by
the OS. Since Linux doesn't bother, I wrote my own user-level utility:
http://patrec.com/rico/ecc/
On ECC error, chipsets like the 440BX can be programmed to assert signal
SERR# (see "82443BX Host Bridge Datasheet", page 4-26). Motherboards
will often route this to the south bridge to allow NMI interrupts. So,
the famous Linux "Dazed and confused" message often means an ECC error.
Regarding NMI enable, there are policy variations among motherboard
vendors: Asus doesn't, Tyan does. My utility is unaffected, since it
polls the chipset registers.
Detection requires that the erroneous memory location be read. That means
usage patterns imposed by the particular OS can alter when the chipset
encounters the error.
======== my e=mail domain: math.nwu.edu
------------------------------
From: [EMAIL PROTECTED] (Rico Tudor)
Subject: Re: ECC RAM supported by Linux?
Date: 9 Dec 2000 05:34:06 GMT
My rule of thumb is 1 soft error per 3 GB-months. In other words,
expect an error per week in a machine or cluster with 12 GB. I
determined this from a Micron white paper and some statistics gathered
from 50 1GB machines at NEC Research.
I should add that this figure can vary by an orders of magnitude,
depending on the particular machine and the memory traffic. One of our
PPro boxes, overloaded with 144 RAM chips on 4 SIMMs, starts
accumulating soft errors within minutes of reboot. This is not a
legitimate use of ECC :-)
======== my e=mail domain: math.nwu.edu
------------------------------
From: Michael V. Ferranti <[EMAIL PROTECTED]>
Crossposted-To: linux.debian.user,comp.os.linux.setup
Subject: Trying to port a hacked CMI8330 audio setup from RH6.2 to Potato...
Date: Sat, 09 Dec 2000 05:39:26 +0000
Hi guys,
Originally, I used to have a CMI8330 HOWTO from a Slackware 2.1 setup
that included a small C program to tweak the chip into working. I had it
sloppily hacked into RH6.2's bootup scripts and it worked fairly well. I
have the new HOWTO now that doesn't require the small C program, but it's
written for RH6.1 and their /etc/rc.d/rc.sysinit file. Has anyone tried
this with Debian Potato, or at least know RH6.1's order of events for
/etc/rc.d/rc.sysinit? I'd like to insert the following in Debian Potato
without violating any of the policies:
># Insert into /etc/conf.modules:
>alias sound sb
>options sb io=0x220 irq=5 dma=1 dma16=5
>alias midi mpu401
>options mpu401 io=0x330 irq=10
>alias synth opl3
>options opl3 io=0x388
># Insert into /etc/rc.d/rc.sysinit at line 190:
># load sound modules
>if [ -n "$USEMODULES" ]; then
> if grep -s -q "^alias sound" /etc/conf.modules ; then
> action "Loading sound module" modprobe sound
> fi
> if grep -s -q "^alias midi" /etc/conf.modules ; then
> action "Loading midi module" modprobe midi
> fi
> if grep -s -q "^alias synth" /etc/conf.modules ; then
> action "Loading synth module" modprobe synth
> fi
>fi
-- Michael V. Ferranti [blades&inreach*com]
Linux Counter Reg.ID# 177869 http://counter.li.org GNUke The Planet!
Sign The Linux Driver Petition: www.libralinux.com/petition.english.html
------------------------------
From: Doug <[EMAIL PROTECTED]>
Subject: ZIP Plus - need imm.tar.gz
Date: Fri, 08 Dec 2000 12:29:55 -0600
I had my ZIP Plus (250M - Parallel Port) drive running under Linux when
I first got it. Unfortunately, I since discarded the driver and have
not been able to find it anywhere (imm.tar.gz/imm.o). Did Iomega put
the clamps down? Can anyone provide me with the driver?
Thanks in Advance.
Doug
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,alt.uu.comp.os.linux.questions,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.networking,comp.os.linux.setup
Subject: What is the command to . . . ?
Date: Sat, 09 Dec 2000 06:43:15 GMT
Reply-To: [EMAIL PROTECTED]
What is the command to find the occurance of a string in a group of
files in a directory?
I vaguely remember it being find with a grep pipe I think.
thanks
charles
------------------------------
From: [EMAIL PROTECTED]
Subject: ASUS CUV4X sound
Date: Sat, 09 Dec 2000 06:45:01 GMT
I have ASUS CUV4X motherboard and have problems with making onboard
sound controller working. If you were able to do it please share your
experience.
Thanks,
Jerzy
[EMAIL PROTECTED]
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,alt.uu.comp.os.linux.questions,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.networking,comp.os.linux.setup
Subject: Re: What is the command to . . . ?
Date: Sat, 09 Dec 2000 07:05:13 GMT
Reply-To: [EMAIL PROTECTED]
nm i got it
grep -e pattern -lr ./* seems to work
On Sat, 09 Dec 2000 06:43:15 GMT, [EMAIL PROTECTED] wrote:
>What is the command to find the occurance of a string in a group of
>files in a directory?
>
>I vaguely remember it being find with a grep pipe I think.
>
>thanks
> charles
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,alt.uu.comp.os.linux.questions,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.networking,comp.os.linux.setup
Subject: Re: hdh: <3>ide-scsi unsupported command dev 22:40
Date: Sat, 09 Dec 2000 07:22:43 GMT
Reply-To: [EMAIL PROTECTED]
All of the hardware appears to be functioning well by the way.
It would appear that some process is issuing a command that identifies
or reads partition tables . . .
. . . of which the hdh (sda) device (atapi zip drive) does not like
the command and ide-scsi is reporting it.
Any ideas how to figure out or does anybody know what program is doing
the Partition check?
charles
On Fri, 08 Dec 2000 23:29:11 GMT, [EMAIL PROTECTED] wrote:
>I have recently set up an atapi ide zip drive. I have compiled in scsi
>emulation and the drive works properly as /dev/sda1.
>
>Prior to using the scsi emulation, I was using the floppy-ide driver
>and was able to use the drive as /dev/hdh1, just with some less
>functionality.
>
>Since I have gone to scsi emulation, I have this message appearing
>after the partition check is done:
>
>Dec 8 18:22:25 linux02 kernel: scsi0 : SCSI host adapter emulation
>for IDE ATAPI devices
>Dec 8 18:22:25 linux02 kernel: scsi : 1 host.
>Dec 8 18:22:25 linux02 kernel: Vendor: IOMEGA Model: ZIP 100
>Rev: 13.A
>Dec 8 18:22:25 linux02 kernel: Type: Direct-Access
>ANSI SCSI revision: 00
>Dec 8 18:22:25 linux02 kernel: Detected scsi removable disk sda at
>scsi0, channel 0, id 0, lun 0
>Dec 8 18:22:25 linux02 kernel: scsi : detected 1 SCSI disk total.
>Dec 8 18:22:25 linux02 kernel: SCSI device sda: hdwr sector= 512
>bytes. Sectors= 196576 [95 MB] [0.1 GB]
>Dec 8 18:22:25 linux02 kernel: sda: Write Protect is off
>Dec 8 18:22:25 linux02 kernel: Partition check:
>Dec 8 18:22:25 linux02 kernel: sda: sda1
>Dec 8 18:22:25 linux02 kernel: md.c: sizeof(mdp_super_t) = 4096
>Dec 8 18:22:25 linux02 kernel: hda: hda1 < hda5 hda6 hda7 >
>Dec 8 18:22:25 linux02 kernel: hdc: [PTBL] [1021/255/63] hdc1 < hdc5
>hdc6 hdc7 >
>Dec 8 18:22:25 linux02 kernel: hdh:<3>ide-scsi: hdh: unsupported
>command in request queue (0)
>Dec 8 18:22:25 linux02 kernel: end_request: I/O error, dev 22:40
>(hdh), sector 0
>Dec 8 18:22:25 linux02 kernel: unable to read partition table
>
>What program is the "partition check?"
>
>What or where is the request queue? I notice that when I boot from
>floppy that this message does not occur.
>
>Thanks in advance!
>charles wilkins
>
>p.s.
>
>linux rocks!
------------------------------
From: "." <[EMAIL PROTECTED]>
Subject: Re: Telnet help please
Date: Sat, 09 Dec 2000 10:01:39 GMT
see the man page for hosts.allow and hosts.deny files,
which live in /etc.
"Rob McGee" <[EMAIL PROTECTED]> wrote in message
news:OZDW5.15745$rr3.756132@news...
> G'day all.
>
> I guess I am like many here asking for help. Well, here it goes.
>
> I am running Mandrake 7.2 (The problem I am having is not Mandrake
specific,
> I think)
> The telnet or ftp is not working. (Had it running no problem on 7.0)
>
> The inetd is running, the firewall is off, inetd.conf is configured to
> allow ftp and telnet. Yet when I try to telnet nothing. NO login prompt,
> just the "Escape character is '^]'" and connection closed. Why, why why!!!
> What am I missing?
>
> Thanks.
>
>
------------------------------
From: Michael Steinhauser <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.mandrake,de.comp.os.unix.linux.hardware
Subject: IRQ Problem with Printer
Date: Sat, 9 Dec 2000 11:22:24 +0100
Hi,
I'm runnung Linux-Mandrake 7.2 on an Pentium MMX. The contetn of
/proc/interrupts lat my machine is:
CPU0
0: 7739722 XT-PIC timer
1: 3590 XT-PIC keyboard
2: 0 XT-PIC cascade
7: 0 XT-PIC soundblaster
8: 1 XT-PIC rtc
10: 5259 XT-PIC NE2000
11: 217216 XT-PIC HiSax
12: 383726 XT-PIC PS/2 Mouse
13: 1 XT-PIC fpu
14: 14387 XT-PIC ide0
15: 37587 XT-PIC ide1
NMI: 0
My file /etc/modules.conf says the following about soundblaster (and works):
alias sound-slot-0 sb
options sound dmabuf=1
alias midi0 opl3
options opl3 io=0x388
options sound-slot-0 io=0x220 irq=5 dma=1 dma16=5 mpu_io=0x330
When I try to print with cups, i get the message the printer is bussy.
Can anyone help, please
------------------------------
From: Aranwen <[EMAIL PROTECTED]>
Subject: <no dial tone>
Date: Sat, 09 Dec 2000 10:30:05 -0000
Hello.
I have 2 questions
1)do USB modems work under linux and how?
2)when installing my other modem on COM2,the os recognized it and
everything went fine untill it tried to dial.it found no dial tone.
Windows do have an option that tells the modem not to wait for a dial
tone..is there something similar in linux or is there something else
needed?
thanks for any help
--
Posted via CNET Help.com
http://www.help.com/
------------------------------
From: [EMAIL PROTECTED] (Erling R Elvsrud)
Subject: Re: Linux with Abit KT7 & AMD Duron
Date: 9 Dec 2000 10:45:45 GMT
Reply-To: [EMAIL PROTECTED]
In article <[EMAIL PROTECTED]>, Joachim Backhaus wrote:
>Hi,
>
>I want to build a system with an AMD Duron processor
>& an Abit KT 7 motherboard running under linux.
>
>Does anyone has some experience wether the Abit KT 7 works under linux?
I have a Abit KT7 and a duron 600, so far no problems at all.
Erling
------------------------------
From: "Mike" <[EMAIL PROTECTED]>
Subject: Linux + big HDD partition
Date: Sat, 9 Dec 2000 13:39:20 +0300
TROUBLE: Linux 2.2.16. I have IDE-HDD 13G. From 600 to 1600 cylinder - not
root
Linux partition (83). If data on this partition is between 600 and 1024
cylinder - all right.
But if i try write data to cylinder > 1024 - "No free Space Left". FDISK
utility show all properly -
all 1600 cylinders, but DF utility shows only 3G from 8G partition.
Q: What I should do to solve this problem?
------------------------------
From: "amir" <[EMAIL PROTECTED]>
Subject: howto load kernel debug symbol to gdb
Date: Sun, 10 Dec 2000 00:46:36 +0200
Hi,
How can I load the kernel module debug symbol to gdb?
I am running the kernel under gdb from remote (serial port, kernel-2.2.16
with patch to enable remote debug).
After loading the kernel symbol I want to load symbols for all the kernel
modules with were loaded after boot.
What I did was to load the modules like that...
insmod -m modulename.o > filename.map
Then from the information from filename.map I try to load the module symbols
to gdb
add-symbol-file filename.o section1 = section1 address section2 = section2
address....
But when I looked at the symbol address in the debugger the address was
wrong (compered to the address of file created by the insmod)
info address function
So how can I load the kernel module debug symbol to gdb?
Thanks.
------------------------------
Date: Sat, 09 Dec 2000 12:02:51 +0100
From: Markus Amersdorfer <[EMAIL PROTECTED]>
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,alt.uu.comp.os.linux.questions,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.networking,comp.os.linux.setup
Subject: Re: What is the command to . . . ?
[EMAIL PROTECTED] wrote:
>
> What is the command to find the occurance of a string in a group of
> files in a directory?
find . -name '*.txt' -exec grep "Hello World" {} \;
rgrep "Hello World" *.txt
--
May the stability be with you!
------------------------------
From: [EMAIL PROTECTED] (jwk)
Subject: Re: Linux with Abit KT7 & AMD Duron
Date: 9 Dec 2000 11:12:38 GMT
Reply-To: [EMAIL PROTECTED]
On Fri, 08 Dec 2000 22:18:37 GMT, Willo
<[EMAIL PROTECTED]> wrote:
>On Fri, 08 Dec 2000 22:14:06 GMT, [EMAIL PROTECTED] (Willo)
>wrote:
>
>
>>I bought this kind of machine and it doesn't see any kind of HD
>>controllers, so it' like having no disks on installation (I tried
>>several distributions, but the problem is always the same, so it means
>>*kernel*)
>
>If anybody had this problem and knows the solution pls post!
>I can be more specific about the system.
You may need a boot-disk with kernel HPT370 support. Try dejanews or
read some time in the abit motherboards group on usenet.
Good luck,
Jurriaan
--
To err is human, to forgive, beyond the scope of the Operating System.
GNU/Linux 2.2.18pre25 SMP 2x1117 bogomips load av: 1.59 1.48 0.71
------------------------------
From: "Fabien Guignon" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.admin,comp.os.linux.setup
Subject: please help !!!! Format hd problem
Date: Sat, 9 Dec 2000 12:36:49 +0100
Hello all,
here's my problem.
I made an install of NT server and Linux red hat on one hd.
My boss wants me to put this disk in a new pc with nt workstation only.
is there a way to format all my hd in one time ?
TIA
Fabien
------------------------------
From: [EMAIL PROTECTED] (sena)
Crossposted-To: comp.os.linux.admin,comp.os.linux.setup
Subject: Re: please help !!!! Format hd problem
Date: 9 Dec 2000 12:17:26 GMT
I heard Fabien Guignon <[EMAIL PROTECTED]> saying:
>I made an install of NT server and Linux red hat on one hd.
>My boss wants me to put this disk in a new pc with nt workstation only.
>is there a way to format all my hd in one time ?
>
Well, you have to re-partition the disk with fdisk (create a single
partition that occupies the whole disk). Then, you'll be left with a blank
partition on your HDD.
Start the WinNT installation process (with boot floppies?) and it should
detect that partition automatically, format it with NTFS and use it.
Regards, sena...
--
[EMAIL PROTECTED], http://decoy.ath.cx/~sena/
gpg fingerprint: F20B 12A8 A8F6 FD1F 9B1D BA62 C424 8E73 DD2E 47C8
------------------------------
Subject: New Epson Printers
From: [EMAIL PROTECTED] (G�sli L�rus Valsson)
Date: 09 Dec 2000 13:01:22 +0000
Hi
Does anyone know if the new Epson stylus color II 680 880 printers work with gs?
I am in the need of getting a new printer and am wondering witch to choose.
the Hardware-howto was last modified sometime in 99 so any input, experience would
be apriciated
thank you.
G�sli
------------------------------
From: CBFalconer <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Re: ECC RAM supported by Linux?
Date: Sat, 09 Dec 2000 13:05:35 GMT
jens wrote:
>
> My hardware vendor (who is generally pretty good) is questioning how
> often ram really fails in a bit here or there. Are we seeing rare
> occurances (once in a year) or is this a more serious issue ? In
> particular, I can see why a commercial server would need ECC RAM but
> is there a need for those of us not running a commercial server farm ?
> What about running a ram testing program (www.simmtester.com I think)
> that checks ram continuously for however long you want to go (leave it
> run for a day or two to confirm all is well) ?
Ram checking programs are useless for soft errors - the kind that
can occur from a cosmic ray, or an alpha particle. These can
discharge a RAM cell (really a baby capacitor) at any time. Some
sources suggest these happen something like once a week on typical
PC memories today, more at higher altitudes.
The error may or may not harm you. If it hits in unused memory,
so what. But what if it hits the buffer used in transferring
files during disk defragmentation or file copying, for example.
It can also hit the memory holding the program you are executing,
or the data it is working on. You will never know about it until
you go to use that file, when you find it is fouled, or it just
fouls your precious data files. You simply have no idea
whatsoever that things are going wrong.
With parity error checking you have a pretty good probability that
the machine will stop in its tracks on an error. Annoying, but
fairly safe. With ECC the error is corrected before it ever gets
to the CPU, and no annoyance. If the system logs such corrections
you can see if it occurs in a particular location, which indicates
a failing RAM chip. If purely random, it is probably beyond your
control, from cosmic rays, etc.
The current practice of using unchecked RAM is equivalent to
unsafe sex, and similarly is due to ignorance of the
consequences. DON'T BUY MACHINES WITHOUT ECC. There is virtually
no performance penalty, but great peace of mind. I suspect that a
large proportion of the so called buggy systems are due to soft
memory failures.
--
Chuck Falconer ([EMAIL PROTECTED])
http://www.qwikpages.com/backstreets/cbfalconer
(Remove "NOSPAM." from reply address. Above works unmodified)
mailto:[EMAIL PROTECTED] (for spambots to harvest)
------------------------------
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End of Linux-Hardware Digest
******************************
