[Bug 404394] Re: qcow2 corruption regression
Dustin Kirkland
dustin.kirkland at gmail.com
Wed Nov 4 19:33:05 GMT 2009
And the Jaunty patch for jaunty-proposed.
** Attachment added: "jaunty-404294.debdiff"
http://launchpadlibrarian.net/35112091/jaunty-404294.debdiff
** Description changed:
Binary package hint: kvm
Since the latest update to 1:84+dfsg-0ubuntu12, any existing or new kvm
host using a qcow2 file encounters disk errors and eventual lockup
inside the guest.
The errors inside the guest (root is /dev/vda1, other filesystems are lvm on top of /dev/vda2). This can happen at bootup if there is enough IO, or boot just fine and occur when IO picks up.
----
REISERFS: abort (device dm3): Journal write error in flush_commit_list
REISERFS: Aborting journal for filesystem on dm-3
request_module: runaway loop modprobe binfmt-0000
Buffer I/O error on device dm-3, logical block 1063056
Buffer I/O error on device dm-3, logical block 1063072
... ad infinitum
----
Converting the qcow2 to a raw and back to qcow2 does not work, nor does
using the newer version of qemu-img (v0.10.0) from the 'qemu' package to
convert the raw to qcow2. Problems occur on 9.04 and 8.04 - both are
x86_64 and have all the latest updates applied.
KVM Host:
Linux ronto 2.6.28-13-server #45-Ubuntu SMP Tue Jun 30 22:56:18 UTC 2009 x86_64 GNU/Linux
KVM Guests:
Linux halfrun 2.6.24-24-server #1 SMP Tue Jun 30 20:24:57 UTC 2009 x86_64 GNU/Linux
Linux zack 2.6.28-13-server #45-Ubuntu SMP Tue Jun 30 22:56:18 UTC 2009 x86_64 GNU/Linux
LVM setup:
- * /kvm is an LV on the Host where the guest qcow2 files are stored
- * Each qcow2 file has two partitions, vda1 (root) and vda2 (a PV for LVs inside the Guests of which var/tmp/swap are LVs)
+ * /kvm is an LV on the Host where the guest qcow2 files are stored
+ * Each qcow2 file has two partitions, vda1 (root) and vda2 (a PV for LVs inside the Guests of which var/tmp/swap are LVs)
+
+ ============
+ SRU Verification
+ 1) Follow *precisely* the instructions in Comment #6 by Nathan. This reproduces the problem for me every time on the *ubuntu12.3 version of the package.
+ 2) Upgrade to the proposed version of this package, and retry those instructions. The problem does not occur.
+ ============
** Changed in: kvm (Ubuntu Hardy)
Importance: Undecided => High
** Changed in: kvm (Ubuntu Karmic)
Importance: Undecided => High
** Changed in: kvm (Ubuntu Intrepid)
Importance: Undecided => High
** Changed in: kvm (Ubuntu Karmic)
Assignee: (unassigned) => Dustin Kirkland (kirkland)
** Changed in: kvm (Ubuntu Intrepid)
Assignee: (unassigned) => Dustin Kirkland (kirkland)
** Changed in: kvm (Ubuntu Jaunty)
Assignee: (unassigned) => Dustin Kirkland (kirkland)
--
qcow2 corruption regression
https://bugs.launchpad.net/bugs/404394
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