From owner-freebsd-bluetooth@FreeBSD.ORG  Thu Oct 11 21:14:19 2012
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Date: Thu, 11 Oct 2012 23:14:16 +0200
From: Andreas Longwitz <longwitz@incore.de>
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To: freebsd-bluetooth@freebsd.org
Subject: btpand problem
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Hi,

I have the problem described in this list in May 2009 (btpand example) 
with FreeBSD 8.3.

ping -s 635 panserver --> ICMP 677 --> nw=672 in bnep_send(), writev 
syscall is ok with iov[0].iov_len=9 and iov[1].iov_len=663.

ping -s 636 panserver --> ICMP 678 --> nw=-1, errno=40 (EMSGSIZE) is not 
ok with iov[0].iov_len=9 and iov[1].iov_len=664.

In the error case the trace written by hcidump is empty (no suprise).
My tap interface has mtu=1500 < 1691 (checked in bnep_send).

Where should I look next ?


Andreas Longwitz