This patch was posted via E-mail on June 3, 2010
* [PATCH] KVM: add schedule check to napi_enable call
- http://kerneltrap.org/mailarchive/linux-netdev/2010/6/4/6278660
and it never made it into the upstream kernel.
Shortly after that these two were added to the upstream kernel:
http://kerneltrap.org/mailarchive/linux-netdev/2010/7/3/6280482
commit 1788f49548860fa1c861ee3454d47b466c877e43
Author: Michael S. Tsirkin
Date: Fri Jul 2 16:32:55 2010 +0000
virtio_net: do not reschedule rx refill forever
We currently fill all of RX ring, then add_buf
returns ENOSPC, which gets mis-detected as an out of
memory condition and causes us to reschedule the work,
and so on forever. Fix this by oom = err == -ENOMEM;
http://kerneltrap.org/mailarchive/git-commits-head/2010/7/8/42134
commit 58eba97d0774c69b1cf3e5a8ac74419409d1abbf
Author: Rusty Russell
Date: Fri Jul 2 16:34:01 2010 +0000
virtio_net: fix oom handling on tx
virtio net will never try to overflow the TX ring, so the only reason
add_buf may fail is out of memory. Thus, we can not stop the
device until some request completes - there's no guarantee anything
at all is outstanding.
Make the error message clearer as well: error here does not
indicate queue full.
Did you test with either or both of them?
I was informed that an SRU would not be done unless the patch was in the
upstream kernel.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/579276
Title:
Lost network in KVM VM / virtio_net page allocation failure
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
