please enable CONFIG_VIRTIO_MMIO on armmp
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Paolo Pisati | ||
Lucid |
Invalid
|
Undecided
|
Unassigned | ||
Utopic |
Fix Committed
|
Undecided
|
Unassigned | ||
Vivid |
Fix Released
|
Medium
|
Paolo Pisati |
Bug Description
[Impact]
Degraded performance during network and disk activity in a kvm guest.
[Test case]
Try booting a vm and do some disk/net activity with and without this driver.
[Regression potential]
In case of regressions, it will just hit people using kvm on 32bit armhf hardware (the lpae variant in particular): we already had this driver on in the past, it's on by default on every arch, it's widely used and upstream is very active - i say it's a low potential regression.
--
Hi,
The current armmp (linux-
CONFIG_
CONFIG_VIRTIO_BLK=y
CONFIG_
CONFIG_VIRTIO_NET=y
CONFIG_
CONFIG_
CONFIG_
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI=y
# CONFIG_
# CONFIG_VIRTIO_MMIO is not set
Now using virtio net and block is not possible, and you have to revert to emulated devices.
CVE References
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Incomplete → Triaged |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu): | |
assignee: | nobody → Paolo Pisati (p-pisati) |
description: | updated |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1396470
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.