Re: [Xen-users] SAS drivers that work reliably under Xen

[Sarah Newman <srn@xxxxxxxxx>]

On 01/16/2017 05:29 AM, Andy Smith wrote:
> Hi,
> 
> Could any of you recommend SAS drivers which you have working
> reliably in Xen dom0?
> 
> I have a Supermicro X10SRH-CLN4F board which has an LSI 3008
> controller on-board; this uses the mpt3sas driver.
> 
> Unfortunately it is unusable under Xen (works fine bare metal).
> There are patches to fix it, but these have been rejected by
> upstream Linux so it could be a very long time before any resolution
> is found. More details here:
> 
>     https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850425
> 
> I am probably going to find it easier and quicker to just buy a
> different board, if I can find one with a well-supported SAS
> chipset. I am assuming there must be some as otherwise we'd have
> heard about such a massive problem by now.
> 
> So, those of you that have SAS, which chipset and drivers are you
> using?
> 
> Thanks,
> Andy

How much ram are you giving the dom0? I'm not entirely certain if this is the 
same error we were seeing over a year ago, but if it is one mitigation
is to give the dom0 at least 4GiB ram, see 
https://lists.xenproject.org/archives/html/xen-devel/2016-01/msg03033.html

--Sarah


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