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[Xen-users] adaptec raid i2o on xen 3.4 with pae



Hi.
  I have an ibm x3500 server running debian lenny with xen 3.4 hypervisor,
linux-2.6.26, adaptec 2400A raid controller and 6GB ram. 

I've been solving problems with xen not being able to use more than 3GB of ram. 
Eliminating grub2 and being forced to upgrade to xen 3.4, because xen 3.0.3 from
etch and xen 3.2 from lenny kept crashing, 

I use the raid controller only to attach disks to it and use software raid 10
over it. It works fine until I let xen address more than 3070M of ram. The
disks on the controller loose all information for partitions and are shown
only as /dev/i2o/hd[abcd]. I can't create new partitions. 

When I lower the memory to about 3400M of ram, I see the partitions, but the
data on the disks get corrupted and finaly, I get segfaults with anything
touching those disks.

I've found only a single similar bug description:

http://www.mail-archive.com/linux-scsi@xxxxxxxxxxxxxxx/msg11738.html


When I boot using only linux, without xen, the controller works fine with 6GB
of memory. So it is a problem with xen + linux.

Does anyone have any ideas how to resolve this?

Thanks for help
Martin Kraus

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