On Thu, Nov 30, 2017 at 05:15:07PM +0000, Stephen Borrill wrote:
On Tue, 21 Feb 2017, Michael van Elst wrote:
netbsd%precedence.co.uk@localhost (Stephen Borrill) writes:
I'm finding that my NetBSD 7 web-server VMs are often dropping off
the network with "xennet0: rx no buf" errors, even under only moderate
load. When this happens, the machines usually end up unresponsive and need
to be hard-rebooted.
The code is pretty naive with buffer allocation.
That doesn't make it any less annoying. Adding RAM doesn't appear to help.
Any workarounds or mitigation besides rebooting nightly? Can I pre-emptively
check for near buffer exhaustion to allow for a reboot or ifconfig down/up?
Ticket #1379 should have helped with this. Does your kernel have this
change ?