Tyan S2466 and 3ware Lockup

Tyan S2466 and 3ware Lockup

[Ananda Bhattacharya]

I have read Vincent Touquet  about the Tyan motherboard and 
the 3ware problems that cause a lockup. He believes that 
this is due to dma causing the PCI bus to overload and then 
the system crashes. I am running a similar system with 
a National Semiconducotrs GigaBit Card and then there is a 
3-ware card with 12 disks on it. I believe to fix this 
problem is to use dma=off as a boot option. Does anyone have 
another idea, or an exact idea why lockups like this happen?
I have not as of yet used the dma=off option myself. 
thank you 
-Anand 


-- 
Eventually the revolutionaries become the established culture, and then what will they do.

- Linus Torvalds, In Politics/Anarchy

Re: Tyan S2466 and 3ware Lockup

[David Bryson]

[-- Attachment #1: Type: text/plain, Size: 1035 bytes --]

On Wed, Oct 22, 2003 at 08:54:25PM -0400 or thereabouts, Ananda Bhattacharya wrote:
> I have read Vincent Touquet  about the Tyan motherboard and 
> the 3ware problems that cause a lockup. He believes that 
> this is due to dma causing the PCI bus to overload and then 
> the system crashes. I am running a similar system with 
> a National Semiconducotrs GigaBit Card and then there is a 
> 3-ware card with 12 disks on it. I believe to fix this 
> problem is to use dma=off as a boot option. Does anyone have 
> another idea, or an exact idea why lockups like this happen?
> I have not as of yet used the dma=off option myself. 
> thank you 

I run at least 12+ machines with a similar configuration(Tyan S2466
dual athon w/3ware controllers). And I have been testing heavy loads
with them for over a year and not seen anything related to what you describe.
But, I do not use NatSemi network cards, mostly Broadcom Gbit
cards(tg3 driver) and some intel e1000 Gbit cards.  Maybe the problem is
your network card ?


[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]

Re: Tyan S2466 and 3ware Lockup

[Ricky Beam]

On Sat, 25 Oct 2003, David Bryson wrote:
>> I have read Vincent Touquet  about the Tyan motherboard and
>> the 3ware problems that cause a lockup. He believes that
...
>I run at least 12+ machines with a similar configuration(Tyan S2466
>dual athon w/3ware controllers). And I have been testing heavy loads
>with them for over a year and not seen anything related to what you describe.
>But, I do not use NatSemi network cards, mostly Broadcom Gbit
>cards(tg3 driver) and some intel e1000 Gbit cards.  Maybe the problem is
>your network card ?

And maybe his problem is cheap memory.  Use memory Tyan has certified for
use on the motherboard.  Otherwise, learn to live with unpredictable
instability. (As a Tyan user for years, every case of a "flaky motherboard"
has turned out to be memory related.  PCI DMA can stress memory beyond
imagination.)

--Ricky