Hi,
This has been fixed by "f48da8: xen-netback: fix unlimited guest Rx
internal queue and carrier flapping", it's already in 3.18, I don't know
if it is going to be backported to 3.17
Zoli
On 11/12/14 14:42, Christopher S. Aker wrote:
Xen: 4.4.2-pre (28573:f6f6236af933) + xsa111, xsa112, xsa114
Dom0: 3.17.4
We recently moved our dom0 from 3.10.x to 3.17.4, in order to avoid a netback
host crash that has been plaguing us. After doing so, the new multi-queue
netback stuff constantly on/offs carrier on the vif, spamming the console, and
making the bridge device leave forwarding state and then immediately reenter
forwarding state.
vif vif-43-0 vif43.0: Carrier off due to lack of guest response on queue 0
br0: port 44(vif43.0) entered disabled state
vif vif-43-0 vif43.0: Carrier on again
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
vif vif-43-0 vif43.0: Carrier off due to lack of guest response on queue 0
br0: port 44(vif43.0) entered disabled state
vif vif-43-0 vif43.0: Carrier on again
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
vif vif-113-0 vif113.0: Carrier off due to lack of guest response on queue 0
br0: port 108(vif113.0) entered disabled state
vif vif-113-0 vif113.0: Carrier on again
br0: port 108(vif113.0) entered forwarding state
br0: port 108(vif113.0) entered forwarding state
br0: port 108(vif113.0) entered forwarding state
vif vif-43-0 vif43.0: Carrier off due to lack of guest response on queue 0
br0: port 44(vif43.0) entered disabled state
vif vif-43-0 vif43.0: Carrier on again
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
vif vif-43-0 vif43.0: Carrier off due to lack of guest response on queue 0
br0: port 44(vif43.0) entered disabled state
vif vif-43-0 vif43.0: Carrier on again
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
br0: port 44(vif43.0) entered forwarding state
(This is in the span of a few minutes, however it is non-stop)
If this is normal expected operation then obviously we can live with the
console messages, but - I just wanted to report this in the case it is not
expected behavior.
Thanks,
-Chris
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