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Dual Athlon 2000 XP MP nightmare

DISCUSSION Steve Cole 7 participants 9 messages Jun 15, 2002 – Jun 19, 2002

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Steve Cole

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#0 lore raw

I'm not sure that what I'm experiencing is a kernel problem, but I thought
I would stick my foot in the door nonetheless, since I have no real indication of what is going on.

I have a dual Athlon 2000+ XP MP system. It's crashing very frequently and looks to be getting worse. It seems to crash less with 2.4.19pre10-ac2 which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Machine specs:

ASUS A7M266-D motherboard, 1006 BIOS rev.
2GB ECC registered memory
4 x 15K RPM Seagate UltraSCSI drives
2 x 2960 (AIC7892 rev 2) controllers
2 x 3C59x 3Com ethernet controllers
!USB card to free up IRQs (removed later)
400W power supply
240W power supply driving two of the hard drives + CD ROM Budget vid card
2 drives partitioned 30%/70%, 30% mirrored together for boot, 70% mirrored
in RAID 0+1 with other drives

I get EIP errors and Null pointer exception errors during full kernel
panics. I've had a lot of file system corruption in ReiserFS originally and now in EXT2, both fixable though Reiser seemed worse. Uptime is measured in hours - usually 12 or more, sometimes two or three.

I can't come up with any reasons for this that point at the kernel, but on the other hand, nothing is ever logged regarding SCSI I/O problems (verbose logging turned on in kernel with extra queue checks). I've replaced the

Quoted 1 line

memory to no avail, and updated the BIOS' of both motherboard and Adaptec

cards. No memory errors are logged and one pass of memtest86 found no memory errors.

Yet, the machine crashes semi-randomly (load seems to play some part in this) and often crashes during the shutdown/reboot phase if it's run reliably for a few hours.

If it's hardware for sure, please just indicate that and I'll move on. I'm getting semi-desperate. :(

#1 lore raw
Quoted 3 lines · * Steve Cole ([email protected]) wrote:

I'm not sure that what I'm experiencing is a kernel problem, but I thought
I would stick my foot in the door nonetheless, since I have no real indication of what is going on.

Hi Steve,

Quoted 4 lines

I have a dual Athlon 2000+ XP MP system. It's crashing very frequently and looks to be getting worse. It seems to crash less with 2.4.19pre10-ac2 which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Can I clarify something - are the processors XP's or MP's ? If they are XP's well then that isn't a supported operation and might well not work relliably.

Quoted 4 lines

I get EIP errors and Null pointer exception errors during full kernel
panics. I've had a lot of file system corruption in ReiserFS originally and now in EXT2, both fixable though Reiser seemed worse. Uptime is measured in hours - usually 12 or more, sometimes two or three.

Have you tried running this single processor? Is it reliable?

Dave
---------------- Have a happy GNU millennium! ----------------------

/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM, SPARC and HP-PA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/
#2 lore raw

On 06/15, Dr. David Alan Gilbert said something like:

Quoted 6 lines
Quoted 2 lines

which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Can I clarify something - are the processors XP's or MP's ? If they are XP's well then that isn't a supported operation and might well not work relliably.

XP MPs exist now.

--
Shawn Leas
[email protected]

When I was crossing the border into Canada, they asked if I had any firearms with me. I said, "Well, what do you need?"
-- Stephen Wright

#3 lore raw

On 06/16, Shawn said something like:

Quoted 9 lines

On 06/15, Dr. David Alan Gilbert said something like:

Quoted 6 lines
Quoted 2 lines

which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Can I clarify something - are the processors XP's or MP's ? If they are XP's well then that isn't a supported operation and might well not work relliably.

XP MPs exist now.

Ah, just looked closer, and it appears they do in fact just call them MPs. The "1900+" labeling scheme throws me off.

--
Shawn Leas
[email protected]

I didn't get a toy train like the other kids, I got
a toy subway instead; you couldn't see anything but every now and then you'd hear this rumbling noise go by.
-- Stephen Wright

#4 lore raw
In reply to Steve Cole
Quoted 3 lines · Steve Cole

I'm not sure that what I'm experiencing is a kernel problem, but I thought
I would stick my foot in the door nonetheless, since I have no real indication of what is going on.

One thing which could remedy this is using the KDB. (kernel debugger) If you get the -aa series kernels/patches you can get this functionality. (Dunno if -ac has it built it). Once the machine crashes, as long as it's not a black screen, then you can get a back-trace on the process and even possibly find the section of code that's actually causing the problem right off the bat,(not usual and YMMV), though probably not, but it's an enormous amount of info that you can't get ATM.

Quoted 2 lines

If it's hardware for sure, please just indicate that and I'll move on. I'm getting semi-desperate. :(

Signature · 1 line
Austin Gonyou <[email protected]>
#5 lore raw
In reply to Steve Cole
Quoted 36 lines · Steve Cole

I'm not sure that what I'm experiencing is a kernel problem, but I thought
I would stick my foot in the door nonetheless, since I have no real indication of what is going on.

I have a dual Athlon 2000+ XP MP system. It's crashing very frequently and looks to be getting worse. It seems to crash less with 2.4.19pre10-ac2 which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Machine specs:

ASUS A7M266-D motherboard, 1006 BIOS rev.
2GB ECC registered memory
4 x 15K RPM Seagate UltraSCSI drives
2 x 2960 (AIC7892 rev 2) controllers
2 x 3C59x 3Com ethernet controllers
!USB card to free up IRQs (removed later)
400W power supply
240W power supply driving two of the hard drives + CD ROM Budget vid card
2 drives partitioned 30%/70%, 30% mirrored together for boot, 70% mirrored
in RAID 0+1 with other drives

I get EIP errors and Null pointer exception errors during full kernel
panics. I've had a lot of file system corruption in ReiserFS originally and now in EXT2, both fixable though Reiser seemed worse. Uptime is measured in hours - usually 12 or more, sometimes two or three.

I can't come up with any reasons for this that point at the kernel, but on the other hand, nothing is ever logged regarding SCSI I/O problems (verbose logging turned on in kernel with extra queue checks). I've replaced the

Quoted 1 line

memory to no avail, and updated the BIOS' of both motherboard and Adaptec

cards. No memory errors are logged and one pass of memtest86 found no memory errors.

Quoted 7 lines

Yet, the machine crashes semi-randomly (load seems to play some part in this) and often crashes during the shutdown/reboot phase if it's run reliably for a few hours.

If it's hardware for sure, please just indicate that and I'll move on. I'm getting semi-desperate. :(

First make sure you have MP cpus NOT XP's. The XP's are not certified by amd to run SMP. Second, try append="mem=nopentium" in your lilo.conf file. I have a dual 1900+ MP box and without that I have random lockups also.

Mark

#6 lore raw

On Sun, 2002-06-16 at 03:30, Mark Hounschell wrote:
...

Quoted 4 lines

First make sure you have MP cpus NOT XP's. The XP's are not certified by amd to run SMP. Second, try append="mem=nopentium" in your lilo.conf file. I have a dual 1900+ MP box and without that I have random lockups also.

Ahh..yes....sooo true. I thought that the subject was just mis-represented, not necessarily wrong. I wholly agree on that. Also, if you are using MPs, please try the KDB.

Quoted 6 lines

Mark
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Signature · 1 line
Austin Gonyou <[email protected]>
#7 lore raw
In reply to Steve Cole
Quoted 44 lines · Mark Hounschell
Quoted 43 lines · Steve Cole

I'm not sure that what I'm experiencing is a kernel problem, but I
thought I would stick my foot in the door nonetheless, since I have no real indication of what is going on.

I have a dual Athlon 2000+ XP MP system. It's crashing very frequently and looks to be getting worse. It seems to crash less with 2.4.19pre10-ac2 which supports the 760 bus and 744x IDE controller, but with something that is as intermittent as this, who can tell?

Machine specs:

ASUS A7M266-D motherboard, 1006 BIOS rev.
2GB ECC registered memory
4 x 15K RPM Seagate UltraSCSI drives
2 x 2960 (AIC7892 rev 2) controllers
2 x 3C59x 3Com ethernet controllers
!USB card to free up IRQs (removed later)
400W power supply
240W power supply driving two of the hard drives + CD ROM Budget vid card
2 drives partitioned 30%/70%, 30% mirrored together for boot, 70%
mirrored in RAID 0+1 with other drives

I get EIP errors and Null pointer exception errors during full kernel
panics. I've had a lot of file system corruption in ReiserFS originally and now in EXT2, both fixable though Reiser seemed worse. Uptime is measured in hours - usually 12 or more, sometimes two or three.

I can't come up with any reasons for this that point at the kernel, but on the other hand, nothing is ever logged regarding SCSI I/O problems (verbose logging turned on in kernel with extra queue checks). I've replaced the

Quoted 2 lines

memory to no avail, and updated the BIOS' of both motherboard and Adaptec

cards. No memory errors are logged and one pass of memtest86 found no memory errors.

Yet, the machine crashes semi-randomly (load seems to play some part in this) and often crashes during the shutdown/reboot phase if it's run reliably for a few hours.

Quoted 7 lines
Quoted 2 lines

If it's hardware for sure, please just indicate that and I'll move on. I'm getting semi-desperate. :(

First make sure you have MP cpus NOT XP's. The XP's are not certified by amd to run SMP. Second, try append="mem=nopentium" in your lilo.conf file. I have a dual 1900+ MP box and without that I have random lockups also.

BS and FUD!

First try to remove one processor, and test the motherboard in single CPU configuration. If you still see crashes replace the motherboard. I also have a defective Asus A7M266-D. It crashes in any configuration of CPUs, power supplies and video cards.

#8 lore raw
Quoted 7 lines · Allan Sandfeld Jensen
Quoted 4 lines · Mark Hounschell

First make sure you have MP cpus NOT XP's. The XP's are not certified by amd to run SMP. Second, try append="mem=nopentium" in your lilo.conf file. I have a dual 1900+ MP box and without that I have random lockups also.

BS and FUD!

What's wrong with this suggestion, from someone who believes it works? Other than suggesting that it be hand entered instead of put in lilo? Disabling 4M pages is unlikely to solve the problem, but (a) the poster has tried it and I bet you haven't, and (b) all the things you suggest require hardware action, while a boot option can be done with less effort and chance of damage.

What you suggest is more likely to work, but I see no reason not to try the simple fix first, with low time and effort budget.

Quoted 4 lines

First try to remove one processor, and test the motherboard in single CPU configuration. If you still see crashes replace the motherboard. I also have a defective Asus A7M266-D. It crashes in any configuration of CPUs, power supplies and video cards.

Signature · 3 lines
bill davidsen <[email protected]>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.