> I have limited resources to play around with, but on my
> OpenBSD.current PPP system, one of:

> ping -s2955 1.2.3.4 or
> ping -s1455 1.2.3.4 causes kernel panic

> It's my guess that this is due to a magic MTU of 1500 which the
> packet just barely exceeds, resulting in only three bytes of data
> (one octet) in the last frag.

For what it's worth, on a NetBSD/sparc machine running code supped in
the AM of July 8th, I don't get any problem from those commands, even
though the Ethernet MTU is also 1500.  So either this version of NetBSD
is immune or it's something ppp-specific.  (I don't currently have any
easy way to fire up ppp; that will have to wait until I get home.)

> I have second hand confirmation that this problem exists under netbsd
> as well,

Without more specifics (eg, what version of NetBSD? was it necessary to
use ppp to get the panic? what was the panic?), it's hard to tell.

					der Mouse

			       mouse@rodents.montreal.qc.ca
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