Jeff/Lennert
Could you turn off netfilter and see if this continues to happen?
Know how to reproduce this? ;->
cheers,
jamal
On Fri, 2004-10-22 at 03:59, Lennert Buytenhek wrote:
> 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
>
>
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