Soren, do you have any thoughts on what I could do to alleviate or better
debug this page fault?  I've found three ways to cause this:
in all cases "pull" is either physical pull or "atacontrol detach <channel>"

1. Pull a drive and rebuild onto hot spare. Pull hot spare *boom*

2. Pull a drive and rebuild onto hot spare. Pull good disk *boom*
...should cause filesystem failure, but not page fault when it's not /

3. Pull a drive and then put it back.  The system suddenly has a new array
with just that drive in it. "atacontrol delete <new-array>" *boom*

In particular, what's the story with the new array appearing when you
insert a drive with array meta-data on it?  That array appears to be
half-there (no devices, etc) which is probably what causes #2...

On Tue, Dec 14, 2004 at 07:58:53AM +0100, Søren Schmidt wrote:
> Actually I'm in the process of rewriting the ATA RAID code, so things 
> are rolling, albeit slowly, time is a precious resource. I belive that 
> it can be made pretty robust, but the rest of the kernel still have 
> issues with disappearing devices etc thats out of ATA's realm.
> 
> Anyhow. I can only test with the HW I have here in the lab, which by far 
> covers all possible permutations, so testing etc by the community is 
> very much needed here to get things sorted out...

-- 
Joe Rhett
Senior Geek
Meer.net
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