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FS#46561 - [linux-lts] kernel 4.1.9-2 virtio interface no arp

Attached to Project: Arch Linux
Opened by Noel Kuntze (thermi) - Monday, 05 October 2015, 03:20 GMT
Last edited by Andreas Radke (AndyRTR) - Wednesday, 11 November 2015, 17:58 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To Andreas Radke (AndyRTR)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No



A machine that has a virtio network interface to a layer two network does not respond to ARP requests
for its IP on that interface anymore after the kernel was upgraded by installing the linux-lts-4.1.9-2 package.
A downgrade to 3.14.50-1-lts makes it work again. That was the only change. A simple reboot did not help.
The kernel is the definitive cause. There are no ebtables rules.

Additional info:
* package version(s):

* config and/or log files etc.

Steps to reproduce:

Install linux-lts-4.1.9-2 on a machine
make some virtio interface to a network
assign IPs
Watch the box not sending arp replies.
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Wednesday, 11 November 2015, 17:58 GMT
Reason for closing:  No response
Comment by Andreas Radke (AndyRTR) - Monday, 05 October 2015, 17:17 GMT
Maybe some module got lost. Please diff the kernel config checking for your missing module. lsmod with the old kernel booted may help. Check also dmesg/journalctl systemlog.