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From: Lennert Buytenhek <buytenh@wantstofly.org>
To: "YOSHIFUJI Hideaki / ?$B5HF#1QL@" <yoshfuji@linux-ipv6.org>
Cc: jgarzik@pobox.com, netdev@oss.sgi.com
Subject: Re: BUG: dst underflow (again)
Date: Fri, 22 Oct 2004 09:59:47 +0200	[thread overview]
Message-ID: <20041022075947.GA15795@xi.wantstofly.org> (raw)
In-Reply-To: <20041022.155159.98771450.yoshfuji@linux-ipv6.org>

On Fri, Oct 22, 2004 at 03:51:59PM +0900, YOSHIFUJI Hideaki / ?$B5HF#1QL@ wrote:

> > As requested, I updated my kernel to see if the "BUG: dst underflow..." 
> > messages disappeared.  Alas, they didn't.  dmesg and .config from 
> > 2.6.9-final attached.
> 
> Okay, thanks, but hmm...
> (We haven't met this issue... I really want to know tow to reproduce...)

FWIW, I'm seeing loads of these on the kernel that comes with Fedora
Core 2, also in the ipv6.ko module.  I have 6to4 enabled, if that matters
anything.

% dmesg | grep BUG | sort | uniq
BUG: dst underflow -1: 3bcf9a80 at 42350024
BUG: dst underflow 0: 3bcf9a80 at 423486d2
BUG: dst underflow 0: 3bcf9a80 at 4235823d
% cat /sys/module/ipv6/sections/.text
0x42345000

0x42350024 - 0x42345000 = 0xb024, corresponds to:
	0000affa <ip6_dst_check>

0x423486d2 - 0x42345000 = 0x36d2, corresponds to:
	0000339d <ip6_push_pending_frames>

0x4235823d - 0x42345000 = 0x1323d, corresponds to:
	00012c0d <udpv6_sendmsg>	(god, that's one big function btw)


--L

  reply	other threads:[~2004-10-22  7:59 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-22  6:39 BUG: dst underflow (again) Jeff Garzik
2004-10-22  6:51 ` YOSHIFUJI Hideaki / 吉藤英明
2004-10-22  7:59   ` Lennert Buytenhek [this message]
2004-11-04 14:15     ` jamal
2004-11-05  6:18       ` David S. Miller
2004-11-05  6:53         ` YOSHIFUJI Hideaki / 吉藤英明
2004-11-05  7:16           ` David S. Miller
2004-11-05  7:44             ` YOSHIFUJI Hideaki / 吉藤英明
2004-11-05  7:05         ` Jeff Garzik
2004-11-05  7:14           ` David S. Miller
2004-11-05  7:34             ` Jeff Garzik
2004-11-05  7:38               ` Jeff Garzik
2004-11-05  9:13                 ` Lennert Buytenhek
2004-11-05  9:14         ` Lennert Buytenhek
2004-11-05  9:42           ` Arnaldo Carvalho de Melo
     [not found]             ` <20041105101513.GA28779@xi.wantstofly.org>
2004-11-06  0:23               ` David S. Miller
2004-11-06  1:53                 ` Herbert Xu
2004-11-06  9:02                 ` Lennert Buytenhek
2004-11-06  8:17                   ` Arnaldo Carvalho de Melo

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