Re: [Xen-users] Xen 3.0.0 32bit-pae (testing changeset 8270) crashes(pgtable.c:284, kernel bug?)

[Matt Ayres <matta@xxxxxxxxxxxx>]

Ian,

I'll buy that the 3w-xxxx driver sucks and it's best to have a 
controller than that can do DMA above 4GB.  The problem is the 3w-xxxx 
series has been one of the best RAID controllers
on the market for the past few years and many, many people have them.  
Even if it's through a bunch hacks, hardware that can't do DMA above 4GB 
needs to work reliably.  This is crucial for Xen to be "Enterprise-Grade 
Open Source Virtualization". 

(just a casual observation from someone who spends day in and day out 
working with Xen)
Thank you,
Matt Ayres
> There's all manner of crappy hardware that can't do DMA above 4GB. The
> other problem that caused you to upgrade to 3.0.1 was 3ware specific, a
> workaround for the driver being lazy.
>
> I believe some newer 3ware controllers are capable of DMA above 4GB,
> though I don't know specific model numbers. 3ware tech support are
> actually pretty responsive, so I'm sure they can help you.
>
>   
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users