Hi there.
I'm new to Xen, but a Linux veteran. I've been trying to install Win2K3
in a domU, with some success but I've run into an odd problem. The first
Win2K3 domU boots, installs, and runs perfectly (as far as I can tell).
The second boots and starts the install, but can't finish it. the dom0
kernel panics. This happens whether the first domU is running or not.
The message in syslog is:
BUG: unable to handle kernel NULL pointer dereference at virtual address
0000011c
A bit about my system. Xubuntu 7.10 (feisty) running on an IBM HS21
blade, with iSCSI SAN. I'm booting from SAN and using separate SAN
volumes for each domU.
I'm attaching the relevant portion of my syslog along with the two domU
config files. The domU name Cepheus is the one that is working fine. The
domU named Perseus is the one that causes the panic. Any ideas would be
greatly appreciated. Like I said, I'm new here, and I'm not sure I've
got everything properly set up, so I won't get insulted if you ask
rudimentary questions. :)
--
Don Faulkner
kernel = "/usr/lib/xen-ioemu-3.1/boot/hvmloader"
builder='hvm'
memory = 512
name = "perseus"
vcpus=1
pae=1
acpi=1
apic=0
#cpus = ""
#vif = [
# 'type=ioemu, mac=00:16:3E:11:AC:6E, ip=10.5.4.19, bridge=xenbr0'
# ]
disk = [
'phy:/dev/sdc,ioemu:hda,w',
'file:/var/xenimages/win2k3_r2_x86_disc1.iso,hdc:cdrom,r'
]
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'destroy'
device_model = '/usr/lib/xen-ioemu-3.1/bin/qemu-dm'
boot='d'
sdl=0
vnc=1
vncviewer=0
stdvga=0
serial='pty'
ne2000=0
Mar 26 16:59:58 legion kernel: [25706.054808] BUG: unable to handle kernel NULL
pointer dereference at virtual address 0000011c
Mar 26 16:59:58 legion kernel: [25706.054822] printing eip:
Mar 26 16:59:58 legion kernel: [25706.054824] c019bdad
Mar 26 16:59:58 legion kernel: [25706.054830] 1e04e000 -> *pde =
00000001:27ed6001
Mar 26 16:59:58 legion kernel: [25706.054833] 07cd6000 -> *pme =
00000000:00000000
Mar 26 16:59:58 legion kernel: [25706.054838] Oops: 0000 [#1]
Mar 26 16:59:58 legion kernel: [25706.054840] SMP
Mar 26 16:59:58 legion kernel: [25706.054845] Modules linked in: loop xt_tcpudp
xt_physdev tun iptable_filter ip_tables x_tables af_packet bridge ib_iser
rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi
scsi_transport_iscsi ppdev video button dock sbs ac container battery
parport_pc lp parport pcspkr serial_core shpchp pci_hotplug ipv6 evdev ext3 jbd
mbcache ata_generic sg usbhid hid sd_mod mptsas mptscsih mptbase
scsi_transport_sas ata_piix bnx2 qla3xxx qla4xxx libata scsi_mod uhci_hcd
ehci_hcd usbcore thermal processor fan fuse apparmor commoncap
Mar 26 16:59:58 legion kernel: [25706.054933] CPU: 0
Mar 26 16:59:58 legion kernel: [25706.054934] EIP:
0061:[drop_buffers+29/240] Not tainted VLI
Mar 26 16:59:58 legion kernel: [25706.054935] EFLAGS: 00010296 (2.6.22-14-xen
#1)
Mar 26 16:59:58 legion kernel: [25706.054945] EIP is at drop_buffers+0x1d/0xf0
Mar 26 16:59:58 legion kernel: [25706.054949] eax: 00000000 ebx: e01a7814
ecx: c1db36a0 edx: 0000011c
Mar 26 16:59:58 legion kernel: [25706.054952] esi: c0437178 edi: c1db36a0
ebp: c1db36b8 esp: c04cdddc
Mar 26 16:59:58 legion kernel: [25706.054956] ds: 007b es: 007b fs: 00d8
gs: 0000 ss: 0069
Mar 26 16:59:58 legion kernel: [25706.054960] Process kswapd0 (pid: 202,
ti=c04cc000 task=de082000 task.ti=c04cc000)
Mar 26 16:59:58 legion kernel: [25706.054963] Stack: c019bb44 c0176e75 c019bb44
e01a7814 c04cde04 e01a7814 c1db36a0 00000000
Mar 26 16:59:58 legion kernel: [25706.054976] c1db36b8 c019beb6 00000000
c1db36a0 c03c0c00 00000001 c015b8c3 c04cdf14
Mar 26 16:59:58 legion kernel: [25706.054988] 00000000 c04cdf04 c04cdf0c
c03c118c c03c1180 c04cdf84 0000000f 00000000
Mar 26 16:59:58 legion kernel: [25706.055000] Call Trace:
Mar 26 16:59:58 legion kernel: [25706.055004] [free_buffer_head+20/48]
free_buffer_head+0x14/0x30
Mar 26 16:59:58 legion kernel: [25706.055010] [kmem_cache_free+133/240]
kmem_cache_free+0x85/0xf0
Mar 26 16:59:58 legion kernel: [25706.055017] [free_buffer_head+20/48]
free_buffer_head+0x14/0x30
Mar 26 16:59:58 legion kernel: [25706.055032] [try_to_free_buffers+54/144]
try_to_free_buffers+0x36/0x90
Mar 26 16:59:58 legion kernel: [25706.055042] [shrink_inactive_list+1971/2320]
shrink_inactive_list+0x7b3/0x910
Mar 26 16:59:58 legion kernel: [25706.055072] [__pagevec_release+21/32]
__pagevec_release+0x15/0x20
Mar 26 16:59:58 legion kernel: [25706.055079] [shrink_active_list+993/1280]
shrink_active_list+0x3e1/0x500
Mar 26 16:59:58 legion kernel: [25706.055109] [shrink_zone+180/288]
shrink_zone+0xb4/0x120
Mar 26 16:59:58 legion kernel: [25706.055121] [kswapd+828/1136]
kswapd+0x33c/0x470
Mar 26 16:59:58 legion kernel: [25706.055140] [autoremove_wake_function+0/80]
autoremove_wake_function+0x0/0x50
Mar 26 16:59:58 legion kernel: [25706.055150] [complete+64/96]
complete+0x40/0x60
Mar 26 16:59:58 legion kernel: [25706.055160] [kswapd+0/1136] kswapd+0x0/0x470
Mar 26 16:59:58 legion kernel: [25706.055167] [kthread+66/112]
kthread+0x42/0x70
Mar 26 16:59:58 legion kernel: [25706.055172] [kthread+0/112] kthread+0x0/0x70
Mar 26 16:59:58 legion kernel: [25706.055179] [kernel_thread_helper+7/16]
kernel_thread_helper+0x7/0x10
Mar 26 16:59:58 legion kernel: [25706.055189] =======================
Mar 26 16:59:58 legion kernel: [25706.055191] Code: e3 5b 5e c3 8d 76 00 8d bc
27 00 00 00 00 55 57 89 c7 56 53 83 ec 14 89 54 24 10 8b 00 f6 c4 08 0f 84 ce
00 00 00 8b 77 0c 89 f2 <8b> 02 f6 c4 08 74 0d 8b 47 10 85 c0 74 06 f0 0f ba 68
3c 14 8b
Mar 26 16:59:58 legion kernel: [25706.055253] EIP: [drop_buffers+29/240]
drop_buffers+0x1d/0xf0 SS:ESP 0069:c04cdddc
kernel = "/usr/lib/xen-ioemu-3.1/boot/hvmloader"
builder='hvm'
memory = 512
name = "cepheus"
vcpus=1
pae=0
acpi=0
apic=0
#cpus = ""
vif = [
'type=ioemu, mac=00:16:3E:59:7E:F3, ip=10.5.4.18, bridge=xenbr0'
]
disk = [
'phy:/dev/sdb,ioemu:hda,w',
]
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'destroy'
device_model = '/usr/lib/xen-ioemu-3.1/bin/qemu-dm'
boot='c'
sdl=0
vnc=1
vncviewer=0
stdvga=0
serial='pty'
ne2000=0
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