http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1442
Summary: domU pv_ops 2.6.28.x/2.6.29.x not booting on some Intel
XEON CPUs
Product: Xen
Version: unstable
Platform: x86-64
OS/Version: Linux-2.6
Status: NEW
Severity: normal
Priority: P2
Component: Hardware Support
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: tycoonog@xxxxxx
Hello,
i have a strange problem.
I have some identical(!) servers:
HW:
- Intel Xeon 5405
- Supermicro X7DCL-i Mainboard (rev 1.1a, bios 1.1a)
- 24GB DDR2 ecc registered
- completely same hardware
SW:
- Debian Lenny
- XEN 3.3.1, 2.6.18.x dom0 (from hg source xen.org)
- compiled from source from xen.org
DomU Kernel pv_ops:
- 2.6.27.21
- 2.6.28.9
- 2.6.29.1
- compiled from vanilla kernel
The hardware and software are identical.
ONLY the CPU versions is different. They are all same Intel XEON 5405 CPUs, but
one is a "stepping 6", the other are "stepping 10".
Problem:
domU pv_ops Kernel 2.6.28.x and 2.6.29.x are only booting on "stepping 6" Intel
XEON 5405.
On "stepping 10" domU pv_ops Kernel 2.6.28.x and 2.6.29.x are NOT booting, the
domU hangs at "Starting testdomU", after you start it with xm create -c
testdomu.sxp. xm top shows 100% cpu load in this state.
domU pv_ops 2.6.27.x is working an ALL Intel XEOn 5405 steppings.
I have now tested 3-4 days, bios options are the same, hardware is the same,
software is the same, the ONLY thing i have found is the CPU stepping.
Can you help me ? Do you need more information ?
-Eduard
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