I tested again this morning (8/23) using the following changeset, with the same
results:
changeset: 6328:b0d820178b8109f2d081e50920aac2c6b8273af6
tag: tip
user: kaf24@xxxxxxxxxxxxxxxxxxxx <mailto:kaf24@xxxxxxxxxxxxxxxxxxxx>
date: Tue Aug 23 04:49:12 2005
summary: This patch extends I/O APIC guest writes so that the correct
destination
Bugzilla # 176. (http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=176)
This is what is displayed on the serial console from the time that Dom0 comes up
until I tried to create DomU.
EXT3-fs: mounted filesystem with ordered data mode.
store_evtchn = 14
XENBUS xs_read_watch: 0
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00020000,00020000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000100,00000000,00000000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000102,00000000,00000000).
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00000000,00000000).
stop_this_cpu disable_local_APIC
(XEN) (file=grant_table.c, line=526) Bad handle (0).
(XEN) (file=grant_table.c, line=1071) Grant unref rd(1) ld(0) frm(d4a2) flgs(0).
This is the entire domU boot log:
Started domain vm1
Linux version 2.6.12-xenU (root@xxxxxxxxxxxxxxxxxxxxxxxxx
<mailto:root@xxxxxxxxxxxxxxxxxxxxxxxxx>) (gcc version 4.0.0
20050405 (Red Hat 4.0.0-0.40)) #1 SMP Tue Aug 23 08:23:02 CDT 2005
kernel direct mapping tables upto ffff880020000000 @ 800000-902000
Allocating PCI resources starting at 20000000 (gap: 20000000:e0000000)
Built 1 zonelists
Kernel command line: root=/dev/sdb2 ro
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 131072 bytes)
Xen reported: 3600.120 MHz processor.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Memory: 504576k/524288k available (1574k kernel code, 9172k reserved, 528k data,
136k init)
Mount-cache hash table entries: 256
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 3
Brought up 1 CPUs
WARNING: 1 siblings found for CPU0, should be 2
NET: Registered protocol family 16
xen_mem: Initialising balloon driver.
Grant table initialized
IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $
audit: initializing netlink socket (disabled)
audit(1124805941.510:0): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
xen_blk: Initialising virtual block device driver
xen_blk: Timeout connecting to device!
Netdev frontend (TX) is using grant tables.
Netdev frontend (RX) is using grant tables.
xen_net: Initialising virtual ethernet driver.
���Bmd: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 32Kbytes
TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
VFS: Cannot open root device "sdb2" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Robin van Leeuwen wrote:
To make the story more complete:
during the DomU boot it hangs for a while on:
Blkif frontend is using grant tables.
xen_blk: Initialising virtual block device driver
And then spits out:
xen_blk: Timeout connecting to device!
David F Barrera wrote:
So, I am not the only one, then. Thanks for your reply.
David
Robin van Leeuwen wrote:
I have the same here after last pull
VFS: Cannot open root device "hda1" or unknown-block(0,0)
only my hda1 maps to a ext3 on a lvm device...
[Debian unstable/testing, last pull 22-08-05 18:00]
David F Barrera wrote:
I've built Xen with the latest hg source pull, and I am not able to
boot domU on my x86_64 boxes using configurations and setups that
have previously worked. Has something changed since late last week
that would require a change in my domU configuration file?
When creating DomU, I get the following error message:
VFS: Cannot open root device "sdb2" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
The file system for DomU is ext3, and I've made sure that it is
built in xenU kernel.
This are the xm dmesg lines displayed when error occurs:
(XEN) (file=grant_table.c, line=1071) Grant unref rd(5) ld(0)
frm(d485) flgs(0).
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00020000,00020000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000100,00000000,00000000).
(XEN) (file=traps.c, line=870) Non-priv domain attempted
WRMSR(00000000c0000102,00000000,00000000).
(XEN) (file=traps.c, line=878) Non-priv domain attempted
RDMSR(00000000c0000080,00000000,00000000).
stop_this_cpu disable_local_apic
This is the domU configuration file:
# Kernel image file.
kernel = "/boot/vmlinuz-2.6-xenU"
# Optional ramdisk.
# ramdisk = "/boot/initrd-2.6.11.12-xenU"
# The domain build function. Default is 'linux'.
builder='linux'
# Initial memory allocation (in megabytes) for the new domain.
# memory = 256
memory = 512
# A name for your domain. All domains must have different names.
name = "vm1"
disk = [ 'phy:sdb1,0811,w','phy:sdb2,0812,w' ]
# Set if you want dhcp to allocate the IP address.
# vif = [ 'mac= AA:00:00:47:CB:34, bridge=xen-br0' ]
# Set if you want dhcp to allocate the IP address.
#dhcp="dhcp"
# Set netmask.
#netmask = '255.255.255.0'
# Set default gateway.
# gateway = '9.53.94.0'
# Set the hostname.
# hostname= "vm%d" % vmid
# Set root device.
root = "/dev/sdb2 ro"
# Sets runlevel 4.
# extra = "4"
#==============
David F Barrera
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