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[Xen-devel] xen_blk timeout connecting to device



domU won't start. Attached is the log. Worth noticing is the xen_blk timeout
connecting to the device.

-------------------------------------------
Using config file "xmexample1".
Started domain fc4
Linux version 2.6.12-xenU (rhim@ilab15) (gcc version 3.4.3 20050227 (Red Hat 
3.4.3-22.1)) #1 SMP Tue Oct 4 19:47:30 EDT 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000004000000 (usable)
0MB HIGHMEM available.
64MB LOWMEM available.
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line:  ip=:1.2.3.4::::eth0:dhcp root=/dev/sda1 ro selinux=0
Initializing CPU#0
PID hash table entries: 512 (order: 9, 8192 bytes)
Xen reported: 2783.912 MHz processor.
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
vmalloc area: c4800000-fb7fe000, maxmem 34000000
Memory: 61696k/65536k available (1801k kernel code, 3672k reserved, 490k data, 
140k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
CPU0: Intel(R) Xeon(TM) CPU 2.80GHz stepping 07
Total of 1 processors activated (5557.45 BogoMIPS).
Brought up 1 CPUs
NET: Registered protocol family 16
xen_mem: Initialising balloon driver.
Grant table initialized
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 4096K 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!
xen_net: Initialising virtual ethernet driver.
NET: Registered protocol family 2
IP: routing cache hash table of 256 buckets, 4Kbytes
TCP established hash table entries: 4096 (order: 4, 65536 bytes)
TCP bind hash table entries: 4096 (order: 3, 49152 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Incomplete network configuration information.
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "sda1" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
 
-------------------------

-Himanshu

-- 
-------------------------------------------------------------------------
Himanshu Raj
PhD Student, GaTech (www.cc.gatech.edu/~rhim)
I prefer to receive attachments in an open, non-proprietary format.
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