The following reply was made to PR usb/156000; it has been noted by GNATS.

From: PseudoCylon <>
Cc: Hans Petter Selasky <>
Subject: Re: usb/156000: rum(4) Fatal trap 18: integer divide fault while in 
kernel mode
Date: Tue, 29 Mar 2011 03:09:33 -0700 (PDT)

 > sudo arping -i wlan0 -b -S -s 00:21:fe:3e:0a:6b -t 
 > * 00:1d:0f:07:9b:28 is the rum0/wlan0 's MAC
 Looks like
 1) rum0 was asked to Tx a packet with it's own mac addr as dst addr
 2) find_tx_node() picked Tx node with ni_associd == 0 (node with own mac addr)
     because rum0 runs in HOSTAP mode, IEEE80211_NODE_ASSOCID flag hasn't been 
 3) the packet slip though this test
 4) picked up a bogus value at
 5) probably divided by 0 at
 [RFC] could add a simple test to the driver, like if (rate != 0), but isn't it 
 nicer to patch in ieee80211_output.c?
 Also addm em0, and set dhcpd_iface in /etc/re.conf
 Then, it should work without issuing tricky arping
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