[Fedora-xen] XENBUS timeout

Wed May 31 20:25:01 UTC 2006

Hi,

I guess since I upgraded to kernel 2.6.16-1.2122_FC5xen0, a booting DomU 
reports a timeout:

[...]
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
   [system hangs for about 3 seconds, but continues ]
XENBUS: Timeout connecting to devices!
md: Autodetecting RAID arrays.
md: autorun ...
[...]

Is this something I should be worried about ? everything seems to work 
as usual in DomU.

hardware is a Dual Xeon 2.4 GHz machine with 1 GB memory. DomU config is:

kernel = "/boot/vmlinuz-2.6.16-1.2122_FC5xenU"
memory = 128
name = "test"
vif = [ '' ]
disk = ['phy:/dev/vg_virtual/lv_test_root,sda1,w',
         'phy:/dev/vg_virtual/lv_test_swap,sda2,w',
         'phy:/dev/vg_virtual/lv_test_var,sda3,w',
         'phy:/dev/vg_virtual/lv_test_web,sda4,w']
root = "/dev/sda1 ro"

OS is the Fedora Core 5 image from jailtime.org

just in case, dmesg output from DomU:

Linux version 2.6.16-1.2122_FC5xenU 
(bhcompile at hs20-bc1-3.build.redhat.com) (gcc
  version 4.1.0 20060304 (Red Hat 4.1.0-3)) #1 SMP Sun May 21 15:52:00 
EDT 2006
BIOS-provided physical RAM map:
  Xen: 0000000000000000 - 0000000008000000 (usable)
0MB HIGHMEM available.
136MB LOWMEM available.
Using x86 segment limits to approximate NX protection
On node 0 totalpages: 34816
   DMA zone: 34816 pages, LIFO batch:7
   DMA32 zone: 0 pages, LIFO batch:0
   Normal zone: 0 pages, LIFO batch:0
   HighMem zone: 0 pages, LIFO batch:0
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line:  root=/dev/sda1 ro
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 1024 (order: 10, 16384 bytes)
Xen reported: 2399.318 MHz processor.
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Software IO TLB disabled
vmalloc area: c9000000-fb3fe000, maxmem 33ffe000
Memory: 125508k/139264k available (1655k kernel code, 5400k reserved, 
618k data,
  132k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 6003.27 BogoMIPS 
(lpj=12006559)
Security Framework v1.0.0 initialized
SELinux:  Initializing.
SELinux:  Starting in permissive mode
selinux_register_security:  Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: After generic identify, caps: bfebc3f1 00000000 00000000 00000000 
00004400
00000000 00000000
CPU: After vendor identify, caps: bfebc3f1 00000000 00000000 00000000 
00004400 0
0000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After all inits, caps: bfebc3f1 00000000 00000000 00000080 00004400 
0000000
0 00000000
Checking 'hlt' instruction... OK.
Brought up 1 CPUs
0
Grant table initialized
NET: Registered protocol family 16
Brought up 1 CPUs
xen_mem: Initialising balloon driver.
audit: initializing netlink socket (disabled)
audit(1149106044.358:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux:  Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key 43645308A4C9E5AD
- User ID: Red Hat, Inc. (Kernel Module GPG key)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
rtc: IRQ 8 is not free.
i8042.c: No controller found.
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Xen virtual console successfully installed as tty1
Event-channel device installed.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
Probing IDE interface ide0...
Registering block device major 8
Probing IDE interface ide1...
Probing IDE interface ide2...
Probing IDE interface ide3...
Probing IDE interface ide4...
Probing IDE interface ide5...
ide-floppy driver 0.99.newide
mice: PS/2 mouse device common for all mice
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 5, 163840 bytes)
TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
XENBUS: Timeout connecting to devices!
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 132k freed
SELinux:  Disabled at runtime.
SELinux:  Unregistering netfilter hooks
Non-volatile memory driver v1.2
EXT3 FS on sda1, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 524280k swap on /dev/sda2.  Priority:-1 extents:1 across:524280k
netfront: Initialising virtual ethernet driver.
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 132k freed
SELinux:  Disabled at runtime.
SELinux:  Unregistering netfilter hooks
Non-volatile memory driver v1.2
EXT3 FS on sda1, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 524280k swap on /dev/sda2.  Priority:-1 extents:1 across:524280k
netfront: Initialising virtual ethernet driver.
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
eth0: no IPv6 routers present