Re: SMP vs. RAIDframe?

[Michael <macallan%netbsd.org@localhost>]

Hello,

On Sep 27, 2008, at 10:40 PM, Holger Weiss wrote:

> I finally got around to trying an SMP kernel (4.99.72 as of a few days
> ago) on my Ultra 80 (4x450 MHz).  Many thanks for all the efforts.
>
> However, all filesystems (FFS with neither softdep nor WAPBL) are on a
> RAIDframe mirror, and for some reason, booting GENERIC.MP leads to a
> dirty parity.  During the parity rewrite, the system will freeze  
> within
> a few minutes; that is, I cannot BREAK into DDB.  If I mark one of the
> RAIDframe components as failed using raidctl(8), the system seems to  
> run
> happily until I generate more or less heavy disk I/O.
>
> So, I'm not sure whether this is RAIDframe related, and I wasn't  
> really
> able to gather useful information yet, but I'd be interested if  
> running
> RAIDframe mirros on SMP kernels works for others if such problems are
> expected.

My U60 ( 2x 450MHz ) works just fine with most things on a RAIDframe  
stripeset ( kernel and loader had to be outside the RAID in order to  
get anything booted ). Occasionally I get complaints about dirty  
parity on startup but that doesn't have any negative side effects  
( and it's meaningless on a stripeset anyway )

have fun
Michael