sparc64/105157: No reply to ping on Sparc64
js at fireball.qxni.com
Sat Jul 21 06:40:07 UTC 2007
The following reply was made to PR sparc64/105157; it has been noted by GNATS.
From: js <js at fireball.qxni.com>
To: bug-followup at FreeBSD.org, andrew at grillet.co.uk
Subject: Re: sparc64/105157: No reply to ping on Sparc64
Date: Sat, 21 Jul 2007 00:56:32 -0500 (CDT)
I run 6.2-RELEASE on an Ultra60 (2-way SMP), with nfsd running although
not actively serving any NFS clients. I am also not running Apache, as
I am able to ping this machine (I receive an ICMP_ECHOREPLY [id=0] packet
back corresponding to each ICMP_ECHO [id=8] packet I send to the machine.)
Are you familiar with ddb and kernel debugging at all? If so, find out
exactly what the kernel is doing with those ICMP_ECHO packets. They would
be stored in mbufs by the kernel after the NIC DMAs them into main memory.
Watch those mbufs during breakpoints on various network functions.
If I were you, I would start by setting breakpoints on ip_input() and icmp_input().
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