On Sun, Mar 07, 2010 at 03:48:23AM +0700, Antoine Martin wrote: > Hi, > > With qemu-kvm-0.12.3: > ./qemu-system-x86_64 [..] -drive file=/dev/sdc9,if=virtio,cache=none [..] > [ 1.882843] vdc: > [ 2.365154] udev: starting version 146 > [ 2.693768] end_request: I/O error, dev vdc, sector 126 > [ 2.693772] Buffer I/O error on device vdc, logical block 126 > [ 2.693775] Buffer I/O error on device vdc, logical block 127 > [ 2.693777] Buffer I/O error on device vdc, logical block 128 > [ 2.693779] Buffer I/O error on device vdc, logical block 129 > [ 2.693781] Buffer I/O error on device vdc, logical block 130 > [ 2.693783] Buffer I/O error on device vdc, logical block 131 > [ 2.693785] Buffer I/O error on device vdc, logical block 132 > [ 2.693787] Buffer I/O error on device vdc, logical block 133 > [ 2.693788] Buffer I/O error on device vdc, logical block 134 > [ 2.693814] end_request: I/O error, dev vdc, sector 0 > [ 3.144870] end_request: I/O error, dev vdc, sector 0 > [ 3.499377] end_request: I/O error, dev vdc, sector 0 > [ 3.523247] end_request: I/O error, dev vdc, sector 0 > [ 3.547130] end_request: I/O error, dev vdc, sector 0 > [ 3.550076] end_request: I/O error, dev vdc, sector 0 > > Works fine with kvm-88: > cp /usr/src/KVM/kvm-88/pc-bios/*bin ./ > cp /usr/src/KVM/kvm-88/x86_64-softmmu/qemu-system-x86_64 ./ > ./qemu-system-x86_64 [..] -drive file=/dev/sdc9,if=virtio,cache=none [..] > > [ 1.650274] vdc: unknown partition table > [ 112.704164] EXT4-fs (vdc): mounted filesystem with ordered data mode > > I've tried running as root, using the block device directly (as > shown above) rather than using a softlink, etc.. > > Something broke. > Host and guest are both running 2.6.33 and latest KVM. > Are you sure you have write access to the block device?
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