[one-users] XEN - Buffer I/O error on device dm-0

Fri Aug 31 08:49:49 PDT 2012

Hello Hendrik,

have you made sure that the initrd supports LVM?

cheers,
Jaime

On Sat, Aug 25, 2012 at 10:26 PM, Hendrik Wißmann <wissmann at gmx.de> wrote:

> Hello,
>
> finally and many thanks to Marcin, it was possible to boot a PV-CentOS and
> a HVM-CentOS via
> ontemplate instantiate. But after booting the instance the filesystem was
> read only mounted; there
> were several I/O errors. After altering the deploymentfile to use the
> original and unregistered image
> and booting the vm again, everything was fine.
> As another try, I created a HVM image that contains no LVM disk layout and
> unexpectedly the
> image booted without any errors.
> Is there a way of booting images that contain LVM disk layouts?
>
> Regards Hendrik
>
>
>
> pyGRUB version 0.6
> ┌─────────────────────────────**──────────────────────────────**
> ─────────────┐
> │ CentOS (2.6.32-279.el6.x86_64) │
> │ │
> │ │
> │ │
> │ │
> │ │
> │ │
> │ │
> └─────────────────────────────**──────────────────────────────**
> ─────────────┘
> Use the ^ and v keys to select which entry is highlighted.
> Press enter to boot the selected OS, 'e' to edit the
> commands before booting, 'a' to modify the kernel arguments
> before booting, or 'c' for a command line.
>
>
>
>
> Will boot selected entry in 1 seconds
>
>
> Started domain one-2 (id=18)
> PCI: Fatal: No config space access function found
> Welcome to CentOS
> Starting udev: [ OK ]
> Setting hostname localhost.localdomain: [ OK ]
> Setting up Logical Volume Management: 2 logical volume(s) in volume group
> "VolGroup" now active
> [ OK ]
> Checking filesystems
> Checking all file systems.
> [/sbin/fsck.ext4 (1) -- /] fsck.ext4 -a /dev/mapper/VolGroup-lv_root
> /dev/mapper/VolGroup-lv_root: clean, 17773/166656 files, 164160/665600
> blocks
> [/sbin/fsck.ext4 (1) -- /boot] fsck.ext4 -a /dev/xvda1
> Buffer I/O error on device xvda1, logical block 34816
> Buffer I/O error on device xvda1, logical block 0
> /dev/xvda1: clean, 38/128016 files, 48110/512000 blocks
> [ OK ]
> Remounting root filesystem in read-write mode: Buffer I/O error on device
> dm-0, logical block 0
> [ OK ]
> Buffer I/O error on device dm-0, logical block 33303
> Buffer I/O error on device dm-0, logical block 33320
> Buffer I/O error on device dm-0, logical block 33645
> Buffer I/O error on device dm-0, logical block 33652
> Mounting local filesystems: Buffer I/O error on device dm-0, logical block
> 34304
> Buffer I/O error on device xvda1, logical block 1
> [ OK ]
> Buffer I/O error on device dm-0, logical block 34318
> end_request: I/O error, dev xvda, sector 1355776
> Enabling /etc/fstab swaps: [ OK ]
> end_request: I/O error, dev xvda, sector 1297264
> Entering non-interactive startup
> Starting monitoring for VG VolGroup: 2 logical volume(s) in volume group
> "VolGroup" monitored
> [ OK ]
> ip6tables: Applying firewall rules: [ OK ]
> iptables: Applying firewall rules: [ OK ]
> Bringing up loopback interface: [ OK ]
> Bringing up interface eth0: Device eth0 has different MAC address than
> expected, ignoring.
> [FAILED]
> Starting auditd: [ OK ]
> Starting system logger: Buffer I/O error on device dm-0, logical block
> 327680
> JBD2: I/O error detected when updating journal superblock for dm-0-8.
> Buffer I/O error on device dm-0, logical block 34327
> Buffer I/O error on device dm-0, logical block 34325
> Buffer I/O error on device dm-0, logical block 327681
> end_request: I/O error, dev xvda, sector 3649600
> end_request: I/O error, dev xvda, sector 3649608
> end_request: I/O error, dev xvda, sector 3649616
> end_request: I/O error, dev xvda, sector 3649624
> end_request: I/O error, dev xvda, sector 3649632
> end_request: I/O error, dev xvda, sector 3649640
> end_request: I/O error, dev xvda, sector 3649648
> end_request: I/O error, dev xvda, sector 3649656
> end_request: I/O error, dev xvda, sector 3649664
> end_request: I/O error, dev xvda, sector 3649672
> end_request: I/O error, dev xvda, sector 3649680
> end_request: I/O error, dev xvda, sector 3649688
> end_request: I/O error, dev xvda, sector 3649696
> end_request: I/O error, dev xvda, sector 3649704
> end_request: I/O error, dev xvda, sector 3649712
> end_request: I/O error, dev xvda, sector 3649720
> end_request: I/O error, dev xvda, sector 3649728
> end_request: I/O error, dev xvda, sector 3649736
> end_request: I/O error, dev xvda, sector 3649744
> end_request: I/O error, dev xvda, sector 3649752
> end_request: I/O error, dev xvda, sector 3649760
> end_request: I/O error, dev xvda, sector 3649768
> end_request: I/O error, dev xvda, sector 3649776
> end_request: I/O error, dev xvda, sector 3649784
> end_request: I/O error, dev xvda, sector 3649872
> end_request: I/O error, dev xvda, sector 3649960
> end_request: I/O error, dev xvda, sector 3650048
> end_request: I/O error, dev xvda, sector 3650136
> end_request: I/O error, dev xvda, sector 3650224
> end_request: I/O error, dev xvda, sector 3650312
> end_request: I/O error, dev xvda, sector 3650400
> end_request: I/O error, dev xvda, sector 3650488
> Aborting journal on device dm-0-8.
> EXT4-fs error (device dm-0) in ext4_new_inode: Journal has aborted
> EXT4-fs (dm-0): previous I/O error to superblock detected
> end_request: I/O error, dev xvda, sector 3649536
> Buffer I/O error on device dm-0, logical block 327680
> end_request: I/O error, dev xvda, sector 1028096
> Buffer I/O error on device dm-0, logical block 0
> EXT4-fs error (device dm-0) in ext4_create: Journal has aborted
> EXT4-fs (dm-0): previous I/O error to superblock detected
> JBD2: I/O error detected when updating journal superblock for dm-0-8.
> end_request: I/O error, dev xvda, sector 1028096
> Buffer I/O error on device dm-0, logical block 0
> EXT4-fs error (device dm-0): ext4_journal_start_sb: Detected aborted
> journal
> EXT4-fs (dm-0): Remounting filesystem read-only
> EXT4-fs (dm-0): ext4_da_writepages: jbd2_start: 1022 pages, ino 26; err -30
>
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-- 
Jaime Melis
Project Engineer
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org | jmelis at opennebula.org
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