[Xen-users] OpenSUSE 10.3, Xen 3.1.0 and aic79xx on x86_64 - trouble...

[Danilo Godec <danilo.godec@xxxxxxxxx>]

Hi,

I'm having 'a little' trouble with the above mentioned combination - the 
system freezes completely when I'm using hard drives connected to the 
aic79xx controller.
Now if I boot the non-xen kernel, the system seems OK and runs fine - I 
can do all kinds of stuff with SCSI drives - like creating a software 
RAID1, making an ext3 filesystem on it, rsync-ing a bunch of files over 
a network, running bonnie++ - it just works.
But when I boot xen and the xen kernel, the system runs fine as long as 
I don't actually use SCSI drives (for testing purpose I added a SATA 
drive for the OS). T
he driver loads OK, it finds and reports SCSI drives and all seems to be 
'well'. But when I use SCSI drives, such as activating and resyncing the 
RAID1 (created before) or if I try to create a filesystem on one of the 
SCSI disks - the system will freeze solid.
It doesn't always happen at the same 'stage' - sometimes it freezes as 
soon as I run 'raidautorun', sometimes I can start the RAID1 array, even 
mount it and try running bonnie++ - but it eventually freezes anyway.
It doesn't tell any errors, it doesn't accept any keystrokes - the only 
thing I can do is power-cycle the server (which BTW is an IBM xSeries 
226 - 8488-3DG with two Xeon 3GHz processors, 2GB RAM QLA2340 FC 
adapter, updated to -AFAIK- latest BIOS and firmware - nope, it has no VT).
The server has been in use for a year or so and has been working OK. The 
motherboard has been replaced once as it died completely, but there was 
nothing (else) leading me to suspect another hardware failure.
I was Google-ing around and only related discussions date back to 2005 
and xen-2.x.x.
The AIC79XX in non-Xen environment seems to be as stable as it gets - 
discussions about aic79xx problem date back to 2004 or earlier.
Has anyone any idea what I can do to make this work (short of using a 
different server)? Any 'undocumented' or not-so-obvious xen boot 
options? Maybe aic79xx driver options?
Anything?

 Thanks, Danilo

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