mbuf leak on 6.0.1?

To: port-xen%netbsd.org@localhost
Subject: mbuf leak on 6.0.1?
From: Emmanuel Dreyfus <manu%netbsd.org@localhost>
Date: Fri, 25 Jan 2013 16:43:52 +0000

Hi

On NetBSD 6.0.1 (XEN3_DOMU) / Xen 3.1.4, the machines loose the network 
after some time. The kernel says:
WARNING: mclpool limit reached; increase kern.mbuf.nmbclusters
WARNING: mclpool limit reached; increase kern.mbuf.nmbclusters

Raising NMBCLUSTERS did not help. It is currenty set as 16384 and
this is the maximum. The reliable workaround is:
  ifconfig xennet0 down; ifconfig xennet0 up

It looks like a mbuf leak, are there known such problems? 

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost

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