On Thu, 10 Sep 2009 12:31:11 -0700
Carson Gaspar <car...@taltos.org> wrote:

> Alex Li wrote:
> > We finally resolved this issue by change LSI driver. For details, please
> > refer to here
> > http://enginesmith.wordpress.com/2009/08/28/ssd-faults-finally-resolved/
> Anyone from Sun have any knowledge of when the open source mpt driver will be 
> less broken? Things improved greatly for me re: bus resets with a recent Sol 
> 10 
> patch, but after my upgrade to OpenSolaris, they're back with a vengeance. An 
> update to b118 didn't improve things, and I dare not go to anything more 
> recent 
> until the ZFS bug fixes hit the dev repo.

>From reading your blog post, it appears that mpt and fma were
trying really hard to tell you that your SSD was misbehaving,
and therefore you should do something about it. Turning _off_
disk fma and then totally replacing the driver with one that
doesn't support fma were definitely not the recommended actions!

Given the rest of this thread, I'm really keen to see (as somebody
who works on mpt(7d)) how your system behaves with fixed SSD
firmware, using mpt(7d) and with disk fma turned on again.

After that, let's talk about "broken" drivers. 

James C. McPherson
Senior Kernel Software Engineer, Solaris
Sun Microsystems
http://blogs.sun.com/jmcp       http://www.jmcp.homeunix.com/blog
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