[Xen-bugs] [Bug 1751] New: âdomain crashedâ when creating new Xen instance (Unhandled invalid opcode fault/trap [#6] in domain)

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1751

           Summary: â??domain crashedâ?? when creating new Xen instance
                    (Unhandled invalid opcode fault/trap [#6] in domain)
           Product: Xen
           Version: 3.0.3
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: tom@xxxxxxxxxxxxxxxx


I have downloaded a Xen virtual machine image from the appscale project, and I
am trying to start it up. However once I run the command;
    xm create -c -f xen.conf

The instance immediately crashes and provides no console output. however it
produces logs that I have posted below. but this is the error;

    [2011-03-01 12:34:03 xend.XendDomainInfo 3580] WARNING
(XendDomainInfo:1178) Domain has crashed: name=appscale-1.4b id=10.

In the output from "xm dmesg" it has this;
(XEN) sysctl.c:51: Allowing physinfo call with newer ABI version
(XEN) mm.c:1471:d2 Bad L1 flags 800000
(XEN) traps.c:405:d2 Unhandled invalid opcode fault/trap [#6] in domain 2 on
VCPU 0 [ec=0000]
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 2 (vcpu#0) crashed on cpu#3:
(XEN) ----[ Xen-3.1.2-194.32.1.el5  x86_64  debug=n  Not tainted ]----
(XEN) CPU:    3
(XEN) RIP:    e033:[<ffffffff8020b612>]

here is the full output http://fpaste.org/w1Bm/

I have managed to mount the root.img file locally and verify that it is
actually an ext3 file system.

I am running Xen 3.0.3 that is a stock RPM from the CentOS 5 repos;

    # rpm -qa | grep -i xen xen-libs-3.0.3-105.el5_5.5
    xen-3.0.3-105.el5_5.5
    xen-libs-3.0.3-105.el5_5.5
    kernel-xen-2.6.18-194.32.1.el5


any suggestions on how to proceed with troubleshooting?

so far I have enabled console logging, but the log file is empty.

All the output into the log files is included here;
http://fpaste.org/va2s/


my startup configuration is like this;
# cat xen.conf

# Configuration file for the Xen instance AppScale, created
# bn VMBuilder
kernel = '/boot/vmlinuz-2.6.27-7-server'
ramdisk = '/boot/initrd.img-2.6.27-7-server'
memory = 1024
vcpus = 1

root = '/dev/sda1 ro'
disk = [
'file:/local/xen/domains/appscale1.4/root.img,sda1,w',
]

name = 'appscale-1.4b'

dhcp    = 'dhcp'
vif         = [ 'mac=00:16:3B:72:10:E4' ]

on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

extra = 'xencons=tty console=tty1 console=hvc0 debugger=y debug=y sync_console'


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