kern/31085: kernel panic on tftp only pxeboot

Skip Hansen shansen at
Thu Jul 17 10:30:19 PDT 2003

The following reply was made to PR kern/31085; it has been noted by GNATS.

From: "Skip Hansen" <shansen at>
To: Kris Kennaway <kris at>
Cc: freebsd-gnats-submit at
Subject: Re: kern/31085: kernel panic on tftp only pxeboot
Date: Thu, 17 Jul 2003 10:21:21 -0700

 I've finally got a subset of my project to build and boot with 4.8R 
 using TFTP only.  I was unable to reproduce the original problem.  If I 
 understood what was happening correctly the original panic was 
 caused when the kernel attempted to send an icmp port unreachable 
 response for retries of the last tftp packet (libstand doesn't ack the 
 last packet of a tftp transfer).  My sniffer shows a correct icmp 
 response now.  I believe revision 1.63 of /sys/netinet/ip_icmp.c 
 corrected the problem.
 Thanks for working on the best OS I've ever used !
 Skip Hansen

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