MegaRAID 'Bad Slot' Kernel message and crash.

[Frode Nordahl]

On Dec 29, 2004, at 12:18, Tony Byrne wrote:
> The amr driver man page says that this message is indicative of a 
> firmware or
> hardware problem with the controller, but we are not convinced.  We
> experienced the same message and lockups daily during stress testing 
> of the
> box under FreeBSD 5.3 and this ultimately forced us to 'downgrade'
> to 4.10 for production.  The box had been rock solid under 4.10 for a
> number of weeks before yesterday's crash.

May I ask what kind of tests you ran? What motherboard do you have?

I have a SRCU42X in a server with Intel motherboard (SE7501HG2), and 
have not made it crash yet. However, the box is not in production yet, 
so...

I ran more generic tests and did not apply severe pressure on the disk 
subsystem: 	endless loop of buildworld -j8
	bonnie++ running with one instance per array

I think it ran for a week or so without any issues.

But I would really like to try whatever you did to your servers to find 
out if I'll have the same issues here :-)

--
Frode


> Could this indicate a bug in the driver, or at least in its support
> for our re-badged RAID controller?  Has anyone else had problems with
> the amr driver with the same card?
>
> Many thanks,
>
> Regards,
>
> Tony.
>
> -- 
> Tony Byrne
>
>
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