http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=307
Summary: Create domain looping endlessly
Product: Xen
Version: unstable
Platform: All
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: dbarrera@xxxxxxxxxx
CC: hohnbaum@xxxxxxxxxx,pl@xxxxxxxxxx
The current build is broken. I am unable to start a guest domain on any
of my test boxes. I've tried several hg pulls, and all fail. This is the
last one I've picked up:
changeset: 7288:03d69dbea152
tag: tip
user: kaf24@xxxxxxxxxxxxxxxxxxxx
date: Mon Oct 10 10:57:41 2005 +0100
summary: Fire watch callbacks on their own workqueue. Mainly this is
x235:~ # xm create -c /tmp/xen/vm1.cfg
Using config file "/tmp/xen/vm1.cfg".
Started domain vm1
Linux version 2.6.12-xenU (root@x235) (gcc version 3.3.3 (SuSE Linux))
#1 SMP Mon Oct 10 11:18:16 CDT 2005
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000008000000 (usable)
0MB HIGHMEM available.
128MB LOWMEM available.
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line: root=/dev/sda9 ro
Initializing CPU#0
PID hash table entries: 1024 (order: 10, 16384 bytes)
Xen reported: 3192.996 MHz processor.
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
vmalloc area: c8800000-fb7fe000, maxmem 34000000
Memory: 126336k/131072k available (1806k kernel code, 4488k reserved,
553k 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
CPU: L3 cache: 1024K
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
CPU0: Intel(R) Xeon(TM) CPU 3.20GHz stepping 05
Total of 1 processors activated (6356.99 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_net: Initialising virtual ethernet driver.
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 8Kbytes
TCP established hash table entries: 8192 (order: 5, 131072 bytes)
TCP bind hash table entries: 8192 (order: 4, 98304 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
NET: Registered protocol family 1
NET: Registered protocol family 17
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "sda9" 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)
It subsequently seems to go into a loop, creating the same domain over
and over, and a Zombie domain as well (?).
lamb22:~ # xm list
Name ID Mem(MiB) CPU VCPUs State Time(s)
Domain-0 0 245 0 1 r----- 53.9
Zombie-vm1 1 0 1 1 ----cd 0.3
vm1 45 220 1 1 r----- 0.2
lamb22:~ # xm list
Name ID Mem(MiB) CPU VCPUs State Time(s)
Domain-0 0 245 0 1 r----- 55.6
Zombie-vm1 1 0 1 1 ----cd 0.3
vm1 49 220 1 1 r----- 0.1
lamb22:~ # xm list
Name ID Mem(MiB) CPU VCPUs State Time(s)
Domain-0 0 245 0 1 r----- 56.6
Zombie-vm1 1 0 1 1 ----cd 0.3
vm1 51 220 1 1 -b---- 0.3
lamb22:~ # xm list
Name ID Mem(MiB) CPU VCPUs State Time(s)
Domain-0 0 245 0 1 r----- 96.7
Zombie-vm1 1 0 1 1 ----cd 0.3
vm1 147 220 1 1 r----- 0.2
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