search for: xen_blk

After upgrading to a recent snapshot (6831) I am unable to boot a guest - I get the following messages when booting the guest domain: Xen_blk: Initialising virtual block device driver Xen_blk: Timeout connecting to device! ... VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on known-block(0,0) The root fs o...

...achine. Tyan 2462 SMP , FC4 dom0 changeset: 7369:92c6021f23e4 tag: tip parent: 7368:7b9547485703 parent: 7367:10c93f58b041 user: emellor@leeni.uk.xensource.com date: Thu Oct 13 10:26:44 2005 +0100 summary: Merge. register_blkdev: cannot get major 8 for sd xen_blk: can''t get major 8 with name sd Unable to handle kernel NULL pointer dereference at virtual address 00000104 printing eip: c0254428 *pde = ma 00000000 pa 55555000 Oops: 0002 [#1] SMP Modules linked in: CPU: 0 EIP: 0061:[<c0254428>] Not tainted VLI EFLAGS: 00010286 (2.6.12...

Running udev 070 on debian unstable. Looks like the hotplug stuff doesn''t work. I''ll see if I can use the suggested udev rules instead. Tim:> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hello Digvijoy, > Does your kernel have inbuilt support for Logical Volumes > ,because your ouptut shows VFS is unable to mount root ,which > means dm-mod and multidevice modules wasnt compiled into the kernel. Multi-device support is compiled into my DomU kernel, device-mapper is built as a module. But I don''t think this has something to do with my problem because

I tried today''s unstable on some IBM hardware and get this IRQ message at boot when xenU tries to probe the virtual block device: Xen virtual console successfully installed as tty1 Event-channel device installed. xen_blk: Initialising virtual block device driver Trying to free free IRQ261 vbd: probe of vbd-769 failed with error -2 xen_blk: bind_evtchn_to_irqhandler failed (err=-16) vbd: probe of vbd-770 failed with error -2 XENBUS xs_read_watch: 0...

...suspending and resuming Xen domains. Suspend and restore seems to work. However, when I reconnected with ''xm console'', I got the following error message on screen. Should I be concerned? [root@ROUGE xen]# xm console FedoraCore2 ************ REMOTE CONSOLE: CTRL-] TO QUIT ******** xen_blk: Unexpected blkif status disconnected in state connected blkfront: recovered 0 descriptors Thanks, Niraj -- http://www.cs.cmu.edu/~ntolia ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest &...

...sda1,w" , "file:/tmp/vosg/swap1.img,sda2,w" ] nics=2 hostname="alex.cs.uchicago.edu" ip="128.135.164.83" netmask="255.255.255.192" gateway="128.135.164.65" root = "/dev/sda1 ro" extra = "" $ xm create vwconfig -c (snipped) xen_blk: Initialising virtual block device driver xen_net: Initialising virtual ethernet driver. NET: Registered protocol family 2 IP: routing cache hash table of 2048 buckets, 16Kbytes TCP established hash table entries: 16384 (order: 5, 131072 bytes) TCP bind hash table entries: 16384 (order: 4, 65536 by...

...> nics=2 > hostname="alex.cs.uchicago.edu" > ip="128.135.164.83" > netmask="255.255.255.192" > gateway="128.135.164.65" > > root = "/dev/sda1 ro" > extra = "" > > $ xm create vwconfig -c > (snipped) > xen_blk: Initialising virtual block device driver > xen_net: Initialising virtual ethernet driver. > NET: Registered protocol family 2 > IP: routing cache hash table of 2048 buckets, 16Kbytes TCP > established hash table entries: 16384 (order: 5, 131072 > bytes) TCP bind hash table entries...

...: Python C API version mismatch for module xen.lowlevel.xs: This Python has API version 1012, module xen.lowlevel.xs has version 1011. from xen.lowlevel import xs Xend does seem to start ok, and xm seems to run ok. But domU still can''t find its boot disk. In the boot messages I see: xen_blk: Initialising virtual block device driver But following that I see no message like Registering block device major 3 which I normally see on a working system. The non-working system has python 2.3.4 on it. Could this be a problem? My disk config is: disk = [ ''file:/xen/disk-images/dom...

...0000:00:01.3: Found 0000:00:01.3 device piix4_smbus 0000:00:01.3: SMB base address uninitialized - upgrade BIOS or use f orce_addr=0xaddr hdc: ATAPI 4X CD-ROM drive, 512kB Cache, (U)DMA Uniform CD-ROM driver Revision: 3.20 Registering block device major 3 register_blkdev: cannot get major 3 for ide xen_blk: can''t get major 3 with name ide vbd vbd-768: 19 xlvbd_add at /local/domain/0/backend/vbd/109/768 Registering block device major 3 register_blkdev: cannot get major 3 for ide xen_blk: can''t get major 3 with name ide vbd vbd-768: 19 xlvbd_add at /local/domain/0/backend/vbd/109/768...

...ng 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 tty Event-channel device installed. xen_blk: Initialising virtual block device driver hdd:<6>xen_net: Initialising virtual ethernet driver. unknown partition table NET: Registered protocol family 2 IP: routing cache hash table of 512 buckets, 4Kbytes TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table...

...--- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1475,6 +1475,9 @@ static int __init xlblk_init(void) if (!xen_domain()) return -ENODEV; + if (!xen_platform_pci_unplug) + return -ENODEV; + if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) { printk(KERN_WARNING "xen_blk: can''t get major %d with name %s\n", XENVBD_MAJOR, DEV_NAME); diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index b161750..663b32c 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -47,6 +47,7 @@ #include <xen/xenbus.h>...

...anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) WARNING: Failed to register Xen virtual console driver as ''tty1'' Event-channel device installed. xen_blk: Initialising virtual block device driver xen_net: Initialising virtual ethernet driver. mice: PS/2 mouse device common for all mice NET: Registered protocol family 2 IP: routing cache hash table of 1024 buckets, 16Kbytes TCP established hash table entries: 16384 (order: 6, 262144 bytes) TCP bind h...

...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_net: Initialising virtual ethernet driver. md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27 NET: Registered protocol family 2 IP: routing cache hash table of 8192 buckets, 128Kbytes TCP established hash table entries: 262144 (order: 10, 4194304 byte...

...egistered 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. Blkif frontend is using grant tables. xen_blk: Initialising virtual block device driver xen_net: Initialising virtual ethernet driver. md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27 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 b...

...but there is a problem with mounting rootfs on xenU kernel. Is there something else that needs to be compiled into xenU 3.0 kernel? $ grep XEN kernel-xenU-x86_64-3.0.config CONFIG_XEN=y CONFIG_ARCH_XEN=y # XEN # CONFIG_XEN_PRIVILEGED_GUEST is not set # CONFIG_XEN_PHYSDEV_ACCESS is not set CONFIG_XEN_BLKDEV_GRANT=y CONFIG_XEN_BLKDEV_FRONTEND=y CONFIG_XEN_NETDEV_FRONTEND=y # CONFIG_XEN_NETDEV_GRANT_TX is not set # CONFIG_XEN_NETDEV_GRANT_RX is not set # CONFIG_XEN_NETDEV_FRONTEND_PIPELINED_TRANSMITTER is not set # CONFIG_XEN_BLKDEV_TAP is not set # CONFIG_XEN_SHADOW_MODE is not set CONFIG_XEN_SCRUB_...

...ng 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 tty 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, 4Kbytes TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes)...

...oop 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 tty > 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, 4Kbytes > TCP established hash table entries: 512 (order: 0, 4096 bytes) > TCP bind hash table entries: 512 (o...

...3.039 Initializing RT netlink socket Starting kswapd Journalled Block Device driver loaded Installing knfsd (copyright (C) 1996 okir@monad.swb.de). Event-channel device installed. Xen virtual console successfully installed as tty xen_mem: Initialising balloon driver. pty: 256 Unix98 ptys configured xen_blk: Initialising virtual block device driver RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: loaded (max 8 devices) SCSI subsystem driver Revision: 1.00 kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2 kmod: failed to exec /sbin/modprobe -s -k scsi_host...

I am trying to create an additional domain and have created a configuration file based on the examples. When I try to boot the domain, it eventually hits a Kernel panic, as follows: Red Hat nash version 4.1.18 starting Mounted /proc filesystem Mounting sysfs Creating /dev Starting udev Creating root device Mounting root filesystem mount: error 6 mounting ext3 mount: error 2 mounting none