Re: BUG: dst underflow (again)

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

quoted

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