[Bug 511620] [NEW] write errors on virtual disc during install

[Dave Gilbert]

Public bug reported:

Binary package hint: qemu-kvm

(This may be #420423 but we're running a much newer kernel on lucid).

Host: Lucid 64bit uptodate as of 23rd January - i7-860  - 2.6.32-11-generic #15-Ubuntu
qemu-kvm: Version: 0.12.2-0ubuntu1

Guest: lucid alpha 2 64bit iso (having pressed update-installer on it on
23rd Jan).

Symptom: During install at a non-repeatable point the root filesystem of the guest becomes RO
and there are dmesg logs on the guest says that there were write errors on vda1.  The block numbers
are different on repeated installs.

There are no errors on the hosts dmesg.   The disc is backed by a lvm
lv, and I've tried writing it with dd if=/dev/zero
of=/dev/main/fiddle2disk bs=1024k and the whole disc writes OK.

Dave

** Affects: qemu-kvm (Ubuntu)
     Importance: Undecided
         Status: New

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write errors on virtual disc during install
https://bugs.launchpad.net/bugs/511620
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