Ubuntu
linux package

  1. Bug #1292234
  2. Comment #11

Comment 11 for bug 1292234

Revision history for this message
Serge Hallyn (serge-hallyn) wrote : Re: qcow2 image corruption in trusty (qemu 1.7 and 2.0 candidate)

As far as I know, everyone who has experienced this has been using a
thinkpad. I've first experienced this myself last week, on a new
thinkpad running utopic.

Two curious things I noticed, beside this being a thinkpad:

1. I could not start the VM with the bad image at all. Until I rebooted.
Then the image was fine, and fsck-clean. This suggests a possible problem
with the page cache on the host.

2. I then disabled KSM. I have not seen this problem since then, however I
also have not hit a vm quite as hard yet. Will have to see whether a series
of package builds manages to make this happen again with KSM disabled.