2007-08-02 08:29:57

by Attila Nagy

[permalink] [raw]
Subject: Re: Hangs and reboots under high loads, oops with DEBUG_SHIRQ

On 2007.08.01. 0:08, Roger Heflin wrote:
> Attila Nagy wrote:
>> HARDWARE ERROR
>> HARDWARE ERROR. This is *NOT* a software problem!
>> Please contact your hardware vendor
>> CPU 1 BANK 0 TSC 1167e915e93ce
>> MCG status:RIPV MCIP
>> MCi status:
>> Uncorrected error
>> Error enabled
>> Processor context corrupt
>> MCA: Internal Timer error
>> STATUS b200004010000400 MCGSTATUS 5
>> This is not a software problem!
>> Run through mcelog --ascii to decode and contact your hardware vendor
>>
>> HARDWARE ERROR
>> HARDWARE ERROR. This is *NOT* a software problem!
>> Please contact your hardware vendor
>> CPU 1 BANK 5 TSC 1167e915e9ea8
>> MCG status:RIPV MCIP
>> MCi status:
>> Uncorrected error
>> Error enabled
>> Processor context corrupt
>> MCA: Internal Timer error
>> STATUS b200221024080400 MCGSTATUS 5
>> This is not a software problem!
>> Run through mcelog --ascii to decode and contact your hardware vendor
>
> Attila,
>
> We had some issues with very similar boards all of the problems
> seem to be around the PCIX bus area of the machine, setting the
> PCIX buses to 66 mhz in the bios made things stable (but slow). Not
> using
> the PCIX bus also seemed to make things work. We got MCE's and
> other odd crashes under heavy IO loads. I believe turning things
> down to 100mhz made things more stable, but things still crashed.
>
> Supermicro reported being able to fix the issue with:
> setting the PCI Configuration -> PCI-e I/O performance
> setting to Colasce 128B.
>
> I am not exactly sure where to set it as we did not try it
> as we had already changed to a different motherboard that did not
> have the issue.
>
> If this works please tell me.
Roger, you are my hero. :)
With that PCI-e setting (again, for the record, this is on a Supermicro
X7DBE motherboard,
and the BIOS setting is PCIe I/O performance, which has two states:
Coalesce and Payload 256B)
all of the four machines have survived a half day of continous bashing.
Previously one, or two
machines typically fell off after such amount of IO load, so it looks
promising so far.
I hope this won't change over the time.

BTW, this is still with 2.6.21.5, because the SCSI target stuff I use
(SCST) has some
-I hope temporary- problems with changed (deleted) interfaces in newer
kernels.

Should the DEBUG_SHIRQ problem in e1000 affect stability (or performance)?

Thanks,


2007-08-04 22:56:55

by Mr. James W. Laferriere

[permalink] [raw]
Subject: Re: Hangs and reboots under high loads, oops with DEBUG_SHIRQ

Hello Atilla ,

On Thu, 2 Aug 2007, Attila Nagy wrote:
> On 2007.08.01. 0:08, Roger Heflin wrote:
>> Attila Nagy wrote:
>>> HARDWARE ERROR
>>> HARDWARE ERROR. This is *NOT* a software problem!
>>> Please contact your hardware vendor
>>> CPU 1 BANK 0 TSC 1167e915e93ce
>>> MCG status:RIPV MCIP
>>> MCi status:
>>> Uncorrected error
>>> Error enabled
>>> Processor context corrupt
>>> MCA: Internal Timer error
>>> STATUS b200004010000400 MCGSTATUS 5
>>> This is not a software problem!
>>> Run through mcelog --ascii to decode and contact your hardware vendor
>>>
>>> HARDWARE ERROR
>>> HARDWARE ERROR. This is *NOT* a software problem!
>>> Please contact your hardware vendor
>>> CPU 1 BANK 5 TSC 1167e915e9ea8
>>> MCG status:RIPV MCIP
>>> MCi status:
>>> Uncorrected error
>>> Error enabled
>>> Processor context corrupt
>>> MCA: Internal Timer error
>>> STATUS b200221024080400 MCGSTATUS 5
>>> This is not a software problem!
>>> Run through mcelog --ascii to decode and contact your hardware vendor
>>
>> Attila,
>>
>> We had some issues with very similar boards all of the problems
>> seem to be around the PCIX bus area of the machine, setting the
>> PCIX buses to 66 mhz in the bios made things stable (but slow). Not using
>> the PCIX bus also seemed to make things work. We got MCE's and
>> other odd crashes under heavy IO loads. I believe turning things
>> down to 100mhz made things more stable, but things still crashed.
>>
>> Supermicro reported being able to fix the issue with:
>> setting the PCI Configuration -> PCI-e I/O performance
>> setting to Colasce 128B.
>>
>> I am not exactly sure where to set it as we did not try it
>> as we had already changed to a different motherboard that did not
>> have the issue.
>>
>> If this works please tell me.
> Roger, you are my hero. :)
> With that PCI-e setting (again, for the record, this is on a Supermicro X7DBE
> motherboard,
> and the BIOS setting is PCIe I/O performance, which has two states: Coalesce
> and Payload 256B)
> all of the four machines have survived a half day of continous bashing.
> Previously one, or two
> machines typically fell off after such amount of IO load, so it looks
> promising so far.
> I hope this won't change over the time.
>
> BTW, this is still with 2.6.21.5, because the SCSI target stuff I use (SCST)
> has some
> -I hope temporary- problems with changed (deleted) interfaces in newer
> kernels.
>
> Should the DEBUG_SHIRQ problem in e1000 affect stability (or performance)?
>
> Thanks,

I too have a SuperMicro MB , But it is a X7DB8 . Same symptoms .
Reported MCE problems here a couple of times .
I set the BIOS setting 'PCIe I/O performance', to 'Coalesce' .
For everyones information , stability went way up , scsi IO is ~ half
, But if there's no stability ...

I'm going to try their 1.3b bios update & see if that helps any .
iirc , Some said they'd already acquired the lastest for their MB &
that did not help them at all . What th eheck I'll give it a try anyway .
Hth , JimL
--
+-----------------------------------------------------------------+
| James W. Laferriere | System Techniques | Give me VMS |
| Network Engineer | 663 Beaumont Blvd | Give me Linux |
| [email protected] | Pacifica, CA. 94044 | only on AXP |
+-----------------------------------------------------------------+