I installed kvm_84+dfsg-0ubuntu12.4_amd64.deb and it has made the problem worse. Now RAW disk images are having disk I/O errors and I'm still getting I/O errors in qcow2 images.
[ 415.850777] end_request: I/O error, dev vda, sector 16466887
[ 415.850789] Buffer I/O error on device vda1, logical block 2058353
[ 415.851459] lost page write due to I/O error on vda1
[ 415.851463] Buffer I/O error on device vda1, logical block 2058354
[ 415.852167] lost page write due to I/O error on vda1
Do not deploy this updated version.
I installed kvm_84+ dfsg-0ubuntu12. 4_amd64. deb and it has made the problem worse. Now RAW disk images are having disk I/O errors and I'm still getting I/O errors in qcow2 images.
root@kvm-host:~# file /kvm/guest/ disk0.raw disk0.raw: x86 boot sector; partition 1: ID=0x83, active, starthead 1, startsector 63, 19502847 sectors; partition 2: ID=0x5, starthead 254, startsector 19502910, 963900 sectors
/kvm/guest/
From guest dmesg:
[ 415.850777] end_request: I/O error, dev vda, sector 16466887
[ 415.850789] Buffer I/O error on device vda1, logical block 2058353
[ 415.851459] lost page write due to I/O error on vda1
[ 415.851463] Buffer I/O error on device vda1, logical block 2058354
[ 415.852167] lost page write due to I/O error on vda1