Linux-Hardware Digest #166, Volume #14 Fri, 12 Jan 01 09:13:08 EST
Contents:
Re: L2-Cache of Pentium2 with Linux (fred smith)
Re: tulip NIC works with kernel 2.4? (Steve Withers)
Re: Support for my sound card? (Steve Withers)
Re: Can you use msn with linux?? (Tony Hague)
Re: need NAT help please................ (Steve Withers)
SCSI AHA : timeout problem (Evgeni Dobrev)
Re: Help: SDRAM Memory Problem ("Techi P. C. Wizard")
Re: Via on-board sound success! ("Adam Short")
Driver USB for ADSL Modem (Vincent Deverre)
Re: Hardware advice needed ("Richard Kimber")
Re: Driver USB for ADSL Modem (Vincent Deverre)
Re: US Robotics modem and SuSe 6.4 ([EMAIL PROTECTED])
Re: PPP defaultroute/DNS problem (Andras)
Re: MS Outlook Express (John Peach)
S3trio3d in text mode (Andras)
Re: Modem advice (Chuck Smoko)
Re: Modem advice (Chuck Smoko)
----------------------------------------------------------------------------
Crossposted-To: comp.os.linux.misc
From: fred smith <[EMAIL PROTECTED]>
Subject: Re: L2-Cache of Pentium2 with Linux
Date: Fri, 12 Jan 2001 00:49:39 GMT
Jean-David Beyer <[EMAIL PROTECTED]> wrote:
: Ralf Render wrote:
:>
:> Thanks Henrik,
:>
:> I think that is the point. My program does not have the cache for itself
:> because of the multitasking.
: That might obscure the results slightly, but I noticed little, if any,
: such obscuring when yesterday I ran the test Peter posted.
: In the little test, the dropoff as I exceeded the size of the L1 and L2
: caches was extremely well-pronounced, even though the machine was 0%
: idle both before and after the test because I was running two instances
: of the SETI@home program in the background (at nice 19). My process
: table typically has about 75 to 80 processes running (quite a lot of
: daemons), and 3 to 5 (but sometimes more) labelled "running" in top.
Just for kicks I ran it on my K6-2/350 (RH 6.2) and got what seem like
interesting results. I've got a FIC VA503+ motherboard which purports
to have a 1meg L2 cache. here's the test results:
*** MEMORY WRITE PERFORMANCE (256 MB LOOP) ***
size = 64 bytes: 853.333 MB/s
size = 128 bytes: 948.148 MB/s
size = 256 bytes: 984.615 MB/s
size = 512 bytes: 1024.000 MB/s
size = 1024 bytes: 984.615 MB/s
size = 2048 bytes: 1024.000 MB/s
size = 4096 bytes: 1066.667 MB/s
size = 8192 bytes: 1024.000 MB/s
size = 16384 bytes: 1024.000 MB/s
size = 32768 bytes: 984.615 MB/s
size = 65536 bytes: 193.939 MB/s <======== This makes sense, it's a
size = 131072 bytes: 193.939 MB/s 64kb L1 cache
size = 262144 bytes: 148.837 MB/s
size = 524288 bytes: 126.108 MB/s
size = 1048576 bytes: 100.787 MB/s <===== The drop-off around 1 meg
size = 2097152 bytes: 80.503 MB/s doesn't seem to be any greater than
size = 4194304 bytes: 75.294 MB/s the drop-offs that occur in a gradation
size = 8388608 bytes: 74.419 MB/s above it.
*** MEMORY READ PERFORMANCE (256 MB LOOP) ***
size = 64 bytes: 914.286 MB/s
size = 128 bytes: 1024.000 MB/s
size = 256 bytes: 1066.667 MB/s
size = 512 bytes: 1113.043 MB/s
size = 1024 bytes: 1113.043 MB/s
size = 2048 bytes: 1163.636 MB/s
size = 4096 bytes: 1113.043 MB/s
size = 8192 bytes: 1163.636 MB/s
size = 16384 bytes: 1163.636 MB/s
size = 32768 bytes: 1113.043 MB/s
size = 65536 bytes: 400.000 MB/s <===== Again, this looks right.
size = 131072 bytes: 400.000 MB/s
size = 262144 bytes: 290.909 MB/s
size = 524288 bytes: 241.509 MB/s
size = 1048576 bytes: 186.861 MB/s <==== more obvious dropoff here than
size = 2097152 bytes: 147.126 MB/s the one above, but not major.
size = 4194304 bytes: 134.031 MB/s
size = 8388608 bytes: 132.642 MB/s
note that there's a sharp drop-off at the 64kb point on both tests,
but much less sharp at 1 meg, especially on the first test. What I find
curious is that between 64kb and 1 meg there's a continuous and gradual
drop-off which seems to continue at about the same rate right on down
past the 1 meg point, at least in the first test. Does this tell me
something about the cahce-handling on my motherboard, or about how well
the K6-2 uses the cache, or maybe something else? Maybe it simply means
that the L2 cache is of low value for memory writes, less than for reads.
Fred
--
---- Fred Smith -- [EMAIL PROTECTED] ----------------------------
"And he will be called Wonderful Counselor, Mighty God, Everlasting Father,
Prince of Peace. Of the increase of his government there will be no end. He
will reign on David's throne and over his kingdom, establishing and upholding
it with justice and righteousness from that time on and forever."
=============================== Isaiah 9:7 (niv) ==============================
------------------------------
From: Steve Withers <[EMAIL PROTECTED]>
Subject: Re: tulip NIC works with kernel 2.4?
Date: Fri, 12 Jan 2001 22:39:26 +1300
[EMAIL PROTECTED] wrote:
> Hahahahahahah, not.
>
> The 2.4.0 release tulip driver is broken. Or
> something is breaking it. The 3com driver seems
> to be ok at least, but I'll tell you what I'm a
> bit ticked off that they released *the big*
> release with such a huge problem. Last minute
> patches to network cards never should've gone in.
>
Try logging in as ROOT and entering: "ifconfig eth0 promisc"
My tulip-based network card wouldn't work either until I manually told
it to accept all packets by putting it into "promiscuous" mode.
I only discovered it because my NIC would suddenly come to life when i
started my VMware virtual machine......and cease functioning when I shut
it down. Something in the Vmware startup and shutdown was turing my
network card on and off.
But if I put it into promiscuous mode first......it stays on until I
re-boot.
I'm still trying to work out why this is......but in the meantime, my
system and it's tulip-based NIC is doing very well. I think there error
is mine....but then I'm not omniscient and it should have "just
worked"......
I know kernel 2.4.0 is moving to a different way of implementing network
security...so perhaps the default "don't work in promiscuous mode" is
part of that. No doubt, somehwere in the source tree is a bit of code
that will change it.
--
Regards,
Steve Withers
[EMAIL PROTECTED]
Registered Linux user #24688
http://counter.li.org
------------------------------
From: Steve Withers <[EMAIL PROTECTED]>
Subject: Re: Support for my sound card?
Date: Fri, 12 Jan 2001 22:41:11 +1300
Matt O'Toole wrote:
> Robert M. Taylor wrote:
>
> > Try the OSS sound server. It comes with SuSE Personal as part of the
> > kit. Alsa may recognize it, but if not...
>
> I downloaded and installed the non-free trial version, and it sort of
> works, but everything sounds half speed. I contacted OSS support, and they
> said to send them a log file. I'm awaiting their answer. A lot of folks
> might balk at paying for software, but 15 bucks and no trip to the computer
> store (for a known-to-work soundcard) seems like a pretty good deal to me.
>
> Matt O.
>
Me, too. I'm glad that opensound.com is there. I can make almost any sound
card or chip work in minutes for the price of a cheap lunch.
--
Regards,
Steve Withers
[EMAIL PROTECTED]
Registered Linux user #24688
http://counter.li.org
------------------------------
From: [EMAIL PROTECTED] (Tony Hague)
Subject: Re: Can you use msn with linux??
Date: 12 Jan 2001 09:26:21 GMT
In article <[EMAIL PROTECTED]>,
Tim Dale <[EMAIL PROTECTED]> wrote:
>On 11 Jan 2001 09:34:32 GMT, [EMAIL PROTECTED] (Tony Hague)
>wrote:
>>No need to resort to such desperate measures - with a recent pppd,
>>look at the man page for the 'usepeerdns' option.
>>
>>Tony.
>
>Could you please explain how to do this. I've only been using linux
>for 3 days. I am using red hat 7.0. My book recomends using rhppp but
>when I try to use it I get a "failed to activate interface" error
>message.
This could well not be the source of your problem, but I'll explain anyway.
You need the IP numbers of one (or better 2) machines to be listed in
/etc/resolv.conf which will provide you with a name resolving service.
If you have these from you ISP, you can just edit them in. Trouble is
that a lot of ISP's are not very forward with them. Also, if you use more
than one ISP from the same machine, it is useful for them to be configured
automatically.
I don't use Redhat, but I guess rhppp is some kind of script that calls
pppd proper with a suitable incantation ? If so, adding the option
'usepeerdns' to the pppd command line will try to get the nameserver
IP's automatically when you connect. In a script /etc/ppp/ip-up, they
are then available as environment variables DNS1 and DNS2 (from memory,
check the man page), so the following in /etc/ppp/ip-up :-
echo "nameserver $DNS1" > /etc/resolv.conf
echo "nameserver $DNS2" >> /etc/resolv.conf
Will set things up automagically.
Note that this does not work on some old versions of pppd.
Tony.
--
------------------------------
From: Steve Withers <[EMAIL PROTECTED]>
Subject: Re: need NAT help please................
Date: Fri, 12 Jan 2001 22:47:36 +1300
[EMAIL PROTECTED] wrote:
> I am trying to add the following NAT to my redhat 6.2 linux server:
> ip route add nat 10.1.20.207 via 10.1.50.207
>
> I get the following error:
> RTNETLINK answers: Invalid argument
>
> Can someone please tell me what I am doing wrong here? All I want to do
> is to be able to access a server (ip 10.1.50.207) which is behind the
> linux box using the ip 10.1.20.207 from the outside of the linux box.
> thanks.
10.* isn't routable on any public network....so if you;re trying from "outside your
firewall" - then you won't get there from here.
But if your address outside the firewall is also 10.*....well that's different.
You could try reading the HOW-TO......for IP MASQ (NAT-ish). I use IP MASQ and
IPCHAINS to do what you are doing.
--
Regards,
Steve Withers
[EMAIL PROTECTED]
Registered Linux user #24688
http://counter.li.org
------------------------------
From: Evgeni Dobrev <[EMAIL PROTECTED]>
Subject: SCSI AHA : timeout problem
Date: Fri, 12 Jan 2001 11:26:29 +0100
I have an Adaptec 29160N on a Linux-2.4.0. I use the aic7xxx module.
Every now and then it says
scsi: aborting command due to timeout: pid 0, scsi0, channel 0, id 5, lun0
Mode Sense (10) 002a 00 00 00 00 00 02 00
I read the RUNNING LINUX and it sais this is a IRQ and/or DMA problem, but
I do not know how to resolve it. COuld you plesae help me with this?
evgeni
------------------------------
From: "Techi P. C. Wizard" <[EMAIL PROTECTED]>
Subject: Re: Help: SDRAM Memory Problem
Reply-To: [EMAIL PROTECTED]
Date: Fri, 12 Jan 2001 10:58:59 GMT
I may be misremembering, but I don't think that the hot557 supports
PC-100 at all. If you quoted the the manual correctly, you answered your
own question. PC-100 is not fast page nor is it EDO. I could be all wrong
.... try posting at alt.comp.periphs.mainboard.shuttle, they would know
more.
Techi :)
In article <[EMAIL PROTECTED]>, "Araz" <[EMAIL PROTECTED]> wrote:
> I recently bought two brand new SpecTek 168-pin 32-MB PC-100 SDRAM
> memories.
>
> I have a Spacewalker mainboard (HOT-557) in my PC, which is set for a
> clock speed of 66 MHz and has two DIMM sockets for 168-pin 3.3V single-
> or double-side EDO or fast page SDRAM modules.
>
> When I installed the new memories in my PC, I got only 8 MB of memory
> from each stick (a total of
> 16 MB for both). The mainboard on my PC has an
> "Award BIOS" which has a setting option under the
> Chipset Features Setup for setting SDRAM
> "CAS Lat/RAS-to-CAS." The setting options are
> 3/3, 3/2, and 2/2. I tried all three. I still
> got the same amount of memory.
>
> Why don't I get 64 MB? Can anyone shed some light on this? How is this
> possible? The seller claims the memories are not defective.
>
> Thanks, Araz
------------------------------
From: "Adam Short" <[EMAIL PROTECTED]>
Subject: Re: Via on-board sound success!
Date: Fri, 12 Jan 2001 12:38:09 -0000
Peter,
I don't have on board sound but I do have the KT133 chipset which seems to
cause all sorts of problems with sound in general. The soundcard I have is
the Aureal Vortex 2. It has drivers and they do produce sound, but the
machine crashes horribly (in a nasty Windows kind of way) when I use them.
Is it possible that applying some of your instructions could fix my problem?
I notice for instance that you make changes to /etc/modules. I got some help
from a guy who had got the same card working in Linux by doing some fiddling
in /etc/rc.d/rc.local, is it possible that I need to do some fiddling in
/etc/modules myself? You seem to know a lot more about sound set ups than I
do, and particularly the tricky ones, so I thought I'd see if you had any
thoughts.
Thanks
Adam
------------------------------
From: Vincent Deverre <[EMAIL PROTECTED]>
Crossposted-To: fr.comp.peripheriques.modems,comp.os.linux.networking
Subject: Driver USB for ADSL Modem
Date: Fri, 12 Jan 2001 13:40:22 +0100
Are exist drivers for USB ADSL modem ???
How can I connect my USB ADSLmodem with Linux ????
--
+===========================================+
Vincent Deverre
Mail:[EMAIL PROTECTED]
+===========================================+
------------------------------
From: "Richard Kimber" <[EMAIL PROTECTED]>
Subject: Re: Hardware advice needed
Date: Fri, 12 Jan 2001 12:41:50 -0000
J Wendel wrote in message <[EMAIL PROTECTED]>...
>On Thu, 11 Jan 2001 16:19:55 -0000, "Richard Kimber"
>
>The 820 chipset has been dropped by Intel.
>
>I have 2 Dell systems at work (1) 933 with 815 chipset (2) 750 with
>820 chipset. The 750 with rambus memory is faster. The down side is
>that the 820 chipset doesn't have good support in Linux. So far, I
>don't have AGP support with the 820. Also, I think that the 820 only
>supports 2 Rdimms (or whatever they're called), and they're very
>expensive. I suspect that rambus memory will go away.
>
>Both machines are very reliable using kernel 2.4.0 (at the moment,
>I'll upgrade tomorrow).
>
>If I were buying, I think I'd wait for the DDR Athlon motherboards. I
>noticed that Micron was selling DDR memory (266) for the same price as
>PC133.
Thanks.
I can't afford to wait. I need a machine urgently and had narrowed it down
to the two options mentioned.
It sounds as though rambus and 820 are to be avoided.
- Richard.
------------------------------
From: Vincent Deverre <[EMAIL PROTECTED]>
Crossposted-To: fr.comp.peripheriques.modems,comp.os.linux.networking
Subject: Re: Driver USB for ADSL Modem
Date: Fri, 12 Jan 2001 13:53:09 +0100
test
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: US Robotics modem and SuSe 6.4
Date: 12 Jan 2001 13:33:37 GMT
In article <xLr76.931$[EMAIL PROTECTED]>,
Jarl Friis <[EMAIL PROTECTED]> wrote:
>TUSHIA Vladimir Chekarev 3871 wrote:
>
>> Good Morning,
>> I have a little problem with my US Robotics modem it doesn't
>> work with SUSE 6.4. All of my attempts didn't gave any results.
>> Pnpdump is found the modem. I tried to play with setserial command
>> with all possible devices, ports and IRQ's - modem not response or busy.
>> In Windows it's work properly and in Red Hat 6.2 too.
>> Apparently I need a help.
>
More specificly, what USR modem is it? Is it a PCI or a ISA I would
assume ISA, as you were seeing it w/ pnpdump. My worry that your
USR modem is like my gateway/USR (USR modem oem'ed to gateway)
modem which is really a winmodem.
A big question that I have would be what model number is it, and does it
work with win9x/NT/2000? If so can you send me/post the ati1-7 results
(ATI1<CR> ...)? There are some winmodems that work w/ Linux, but you
can find more from http://www.linmodems.org than I can relay.
chuck
------------------------------
From: Andras <[EMAIL PROTECTED]>
Subject: Re: PPP defaultroute/DNS problem
Date: Fri, 12 Jan 2001 13:39:41 +0000
Matt Long wrote:
>
> Everytime I've set up PPP, I've been able to do it without a problem,
> however, I am having a problem now. I am able to dial successfully, however,
> domain nam resolution seems to be hanging. I think that it may be related to
> an error message I get in /var/log/messages. Has anyone ever seen this error
> pop up right after the IP address is assigned by the ISP. (From
> /var/log/messages ):
>
> pppd: not replacing existing default route to eth0 [192.168.0.1]
>
> I have specified the defaultroute directive in my options file. When I
> remove it, the above line disappears, but I still cannot get the domain
> names to resolve. Any help would be appreciated.
>
> -Matt
Did you check the permissions?
------------------------------
From: [EMAIL PROTECTED] (John Peach)
Subject: Re: MS Outlook Express
Date: Fri, 12 Jan 2001 13:42:34 GMT
In article <Iyt76.449$[EMAIL PROTECTED]>,
"DjM" <[EMAIL PROTECTED]> writes:
|>John,
|>
|>Dughhhhh!!!
|>
|>My objective was to get back to the KIND people who responded to the
|>questions that I posted so that I might show respect for their time. In
|>addition, I would like to thank them.
If you really expected a sensible answer you should have posted to a
relevant newsgroup. Why should anyone in comp.os.linux.hardware know
anything at all about billyshit outlook depress?
|>
|>Your objective is to throw negativity at people. So, here- take it back!
|>
|>Aren't you a Peach?
|>
|>DjM
|>
|>"John Peach" <[EMAIL PROTECTED]> wrote in message
|>news:2zi76.11$[EMAIL PROTECTED]...
|>> In article <wO976.743$[EMAIL PROTECTED]>,
|>> "DjM" <[EMAIL PROTECTED]> writes:
|>> |>Teckies,
|>> |>
|>> |>I have a lot of messages to respond to concerning Linux
|>questions/answers.
|>> |>However, MS Outlook Express is only letting me view messages from Jan 1,
|>> |>2001. FYI: I only use Outlook Express for newsgroups and am not at all
|>savy
|>> |>with it. I have browsed the setoptions many times and can't figure out
|>how
|>> |>to display messages from last year (Dec 2000). Ergo, I can't get to the
|>> |>Linux questions that I left. I would really like to check them out and
|>> |>thank people for their responses, share info, etc... However, I do not
|>know
|>> |>how to get this tool to enable their display.
|>> |>
|>> |>Does anybody know how to fix this?
|>>
|>> Sounds like a feature to me :-) Either that or a Y2K bug.
|>> The way to fix it is to get a decent newsreader.
|>>
|>> |>
|>> |>Thanks,
|>> |>DjM
|>> |>
|>> |>
|>>
|>
|>
------------------------------
From: Andras <[EMAIL PROTECTED]>
Subject: S3trio3d in text mode
Date: Fri, 12 Jan 2001 13:50:07 +0000
I have the S3 Trio 3d 4MB AGP card, and my linux crashes all the time
when I view a text file with less on a text terminal and try to scroll
upwards. After a few lines of scrolling it always crashes, and the only
solution is to press the reset button, nothing else works.
I tried the same setup with an old ISA video card and I didn't have this
problem.
Did you experience the same with this card?
Do you have any clues who might be responsible for it?
Trio 3d? Linux? Motherboard? Bios setup?
The same computer worked with windows NT in graphics mode and had no
problem in dos text mode.
Thanks,
Andras
------------------------------
From: [EMAIL PROTECTED] (Chuck Smoko)
Subject: Re: Modem advice
Date: 12 Jan 2001 13:59:08 GMT
In article <[EMAIL PROTECTED]>, Dustin <[EMAIL PROTECTED]> wrote:
>Jarl Friis wrote:
>>
>> Quite safe to assume all external modems work with linux. The USRobotics is
>> very easy to setup, no strange stuff. You can check the Linux hardware
>> compatibilty list. Search google for it.
>>
>> Jarl
>I have picked up a used USR Sportster Faxmodem w/ X2. The manual
>says that the modem is upgradable but I have been having extreme
>difficulty getting a connection to my ISP. Tech at ISP says that
>they are using v.90. I can only get connected if I use ATZ%C0 to
>disable compression or error correction (can't remember which).
>I have been unable to use the Windows modem upgrade software to
>update to v.90. Anyone know of a work around to this problem.
>Or, how to upgrade the modem eprom w/ Linux?
>
>Thanks,
>
>Dustin
Dustin,
The modem is most likely upgradable to v.90, but I doubt that USR
will support doing the upgrade via linux. The upgrade consists of
dumping a hex file to the serial port after telling it to erase
the flash and accecpt a new image. However, I don't see USR
dedicating a folks to this effort. You best best would be move
the modem to a "windows 95/98" system and run the USR modem
upgrade wizard. It will flash it to v.90 and move it back. An
honest accessment of what you are looking to do would in degreee
of difficulty would be scrubbing your floor with a tooth brush.
i.e. It would take atleast 10-20x more work than with a 95/98
system.
chuck
------------------------------
From: [EMAIL PROTECTED] (Chuck Smoko)
Subject: Re: Modem advice
Date: 12 Jan 2001 12:59:08 GMT
In article <[EMAIL PROTECTED]>, Dustin <[EMAIL PROTECTED]> wrote:
>Jarl Friis wrote:
>>
>> Quite safe to assume all external modems work with linux. The USRobotics is
>> very easy to setup, no strange stuff. You can check the Linux hardware
>> compatibilty list. Search google for it.
>>
>> Jarl
>I have picked up a used USR Sportster Faxmodem w/ X2. The manual
>says that the modem is upgradable but I have been having extreme
>difficulty getting a connection to my ISP. Tech at ISP says that
>they are using v.90. I can only get connected if I use ATZ%C0 to
>disable compression or error correction (can't remember which).
>I have been unable to use the Windows modem upgrade software to
>update to v.90. Anyone know of a work around to this problem.
>Or, how to upgrade the modem eprom w/ Linux?
>
>Thanks,
>
>Dustin
Dustin,
The modem is most likely upgradable to v.90, but I doubt that USR
will support doing the upgrade via linux. The upgrade consists of
dumping a hex file to the serial port after telling it to erase
the flash and accecpt a new image. However, I don't see USR
dedicating a folks to this effort. You best best would be move
the modem to a "windows 95/98" system and run the USR modem
upgrade wizard. It will flash it to v.90 and move it back. An
honest accessment of what you are looking to do would in degreee
of difficulty would be scrubbing your floor with a tooth brush.
i.e. It would take atleast 10-20x more work than with a 95/98
system.
chuck
------------------------------
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