[Xen-users] FC6 newbie error/question

[rjf <rjf@xxxxxxxxxxxxxxx>]

Be warned, I am definitely a xen newbie. I have spent an hour or so
googling, my issue without any success.

First, some stats about my environment:

=-=-=-=-

Platform:
Dual Xeon, 4GB RAM
`xm info`:
host                   : localhost.localdomain
release                : 2.6.18-1.2798.fc6xen
version                : #1 SMP Mon Oct 16 15:11:19 EDT 2006
machine                : i686
nr_cpus                : 4
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 1
threads_per_core       : 2
cpu_mhz                : 3391
hw_caps                :
bfebfbff:20100000:00000000:00000180:0000649d:00000000:00000001
total_memory           : 4095
free_memory            : 0
xen_major              : 3
xen_minor              : 0
xen_extra              : .3-rc3-1.2798.f
xen_caps               : xen-3.0-x86_32p
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.1.1 20061011 (Red Hat 4.1.1-30)
cc_compile_by          : brewbuilder
cc_compile_domain      : build.redhat.com
cc_compile_date        : Mon Oct 16 14:34:31 EDT 2006
xend_config_format     : 2

=-=-=-

This all boots fine, and xm list reports a dom0.

Now, using text mode virt-install, I attempt to do an install of FC6
from the same tree as the platform used, via nfs (FC6 DVD copied to an
nfs share), using the following commandline:

=-=-=-=-
virt-install -n fc6sc -r 1024 -f /var/lib/xen/images/fc6-sc.img \
  -s 4 --nographics -p -l nfs:dev:/usr/local/export/fedorafc6-cd
=-=-=-=-

Anaconda starts up, and prompts me for language, and NIC
configuration, which I enter. I then get the "Welcome to Fedora"
message, followed by this most frightening dump:

=-=-=-=-=-

EIP is at xen_pgd_pin+0x43/0x51nts   |  <Space> selects   |  <F12> next screen
eax: ffffffea   ebx: c0e21ee8   ecx: 00000001   edx: 00000000
esi: 00007ff0   edi: 00000000   ebp: c0e0f280   esp: c0e21ee8
ds: 007b   es: 007b   ss: 0069
Process anaconda (pid: 474, ti=c0e21000 task=c0a65440 task.ti=c0e21000)
Stack: 00000002 0007b354 c0764840 0059ad80 c0764840 c04118d6 c0764894 c0411902
      eccfd284 00000000 c041b02b eccfd350 c04163f6 000000d0 c0e21fbc bfe10544
      01200011 00000000 c0e0f280 c0a65440 c0764840 c0764440 eccfd290 eccfd2a4
Call Trace:
[<c04118d6>] __pgd_pin+0x2a/0x37
[<c0411902>] mm_pin+0x1f/0x2b
[<c041b02b>] copy_process+0xb8c/0x119a
[<c041b68a>] do_fork+0x51/0x126
[<c0402c47>] sys_clone+0x36/0x3b
[<c0404ea7>] syscall_call+0x7/0xb
DWARF2 unwinder stuck at syscall_call+0x7/0xb

Leftover inexact backtrace:

=======================
Code: 75 0e a1 28 a2 7a c0 8b 14 90 81 e2 ff ff ff 7f 89 54 24 04 89
e3 b9 01 00 00 00 31 d2 be f0 7f 00 00 e8 86 ca fe ff 85 c0 79 08 <0f>
0b c5 00 58 41 62 c0 83 c4 0c 5b 5e c3 56 89 c2 53 83 ec 0c
EIP: [<c04148be>] xen_pgd_pin+0x43/0x51 SS:ESP 0069:c0e21ee8

=-=-=-=-=-

And the installation hangs. I can CTRL-] out, but of course xen tells
me that a domain installation is still in progress, etc.

At this point, "xm list" shows:

=-=-=-=-

[root@localhost ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0     3026     4 r-----     68.3
fc6sc                                      4     1023     1 -b----      6.6

=-=-=-=-

How do I go about debugging this? What further information might I
provide to make it easier for someone to help me?

Thanks very much,
Ron

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