Re: sata_mv, io stucks

[Harri Olin <harri.olin@gmail.com>]

Mark Lord wrote:
> Harri Olin wrote:
> ..
>>>>>>> Two marvell controllers, 16 disks, software raid10, IO stucks on 
>>>>>>> different disks, kernel 2.6.26.5.
>>>>>>> With default ubuntu's 8.04 2.6.24 kernel the problem can not be 
>>>>>>> repeated
> This could very well be due to one/several of the as-yet un-addressed
> chipset errata for the 6081.  Someday we'll have software workarounds
> for those, but I'm (still) waiting on Marvell for stuff.
>

I was going through logs for the last night and noticed something:
Currently I have only 7 disks connected to 6081 controller, port 5 is 
free, and now stalls have been happening only on ports 0, 2 and 3. So it 
seems something on high port is affecting corresponding lower port too.

> Harri / Artem:  what type/speed of slots are your 6081 controllers in?
> PCI, or PCI-X?   Bus speed?
>

As mentioned earlier, 33MHz, 66MHz and 133MHz. Motherboards are: some 
Asus board with VIA chipset, Supermicro P4SCI and Supermicro X7SBE. I 
think P4SCI has 66MHz 64bit PCI, not PCI-X.

-- 
Harri.