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

[Hendrik Wißmann]

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



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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