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2.2.20pre2: ipv6_route entries shifted

To: netdev@xxxxxxxxxxx
Subject: 2.2.20pre2: ipv6_route entries shifted
From: Rafal Maszkowski <rzm@xxxxxxxxxx>
Date: Tue, 18 Jun 2002 21:11:11 +0200
Sender: owner-netdev@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On a 6BONE router (SparcStation 10) I typically have same 3000
/proc/;net/ipv6_route entries.  Usually few tens of them miss 1 or 2 bytes at
the beginning of lines, the total amount of all shifts may be about 70 bytes.
The whole table read few times and grepped to show one of the tunnel interfaces
is below. All readouts where done during few minutes, 3 readouts in the middle
during some 20 seconds.

fe8010000700150000000000000000 7e 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000028
c 00240001 supernet
3ffe8010000700150000000000000000 40 00000000000000000000000000000000 00 
3ffe8010000700150000000000000002 00000400 00000000 00000
000 00000003 supernet
800000000000000000000000000000 0a 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000000
0 00240001 supernet
ff000000000000000000000000000000 08 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000
000 00040001 supernet

root@6bone-gw:~ftp/pub/ipv6/conf,0# cat /proc/net/ipv6_route | grep superne
3ffe8010000700150000000000000000 7e 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000028c 00240001 supernet
3ffe8010000700150000000000000000 40 00000000000000000000000000000000 00 
3ffe8010000700150000000000000002 00000400 00000000 00000000 00000003 supernet
fe800000000000000000000000000000 0a 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 000000000000000 00240001 supernet
000000000000000000000000000000 08 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000000 00040001 supernet
root@6bone-gw:~ftp/pub/ipv6/conf,0# cat /proc/net/ipv6_route | grep superne
3ffe8010000700150000000000000000 7e 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000028c 00240001 supernet
3ffe8010000700150000000000000000 40 00000000000000000000000000000000 00 
3ffe8010000700150000000000000002 00000400 00000000 00000000 00000003 supernet
fe800000000000000000000000000000 0a 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 000000000000000 00240001 supernet
ff000000000000000000000000000000 08 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000000 00040001 supernet
root@6bone-gw:~ftp/pub/ipv6/conf,0# cat /proc/net/ipv6_route | grep superne
3ffe8010000700150000000000000000 7e 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000028c 00240001 supernet
3ffe8010000700150000000000000000 40 00000000000000000000000000000000 00 
3ffe8010000700150000000000000002 00000400 00000000 00000000 00000003 supernet
fe800000000000000000000000000000 0a 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 000000000000000 00240001 supernet
000000000000000000000000000000 08 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000000 00040001 supernet

root@6bone-gw:~ftp/pub/ipv6/conf,0# cat /proc/net/ipv6_route | grep superne
3ffe8010000700150000000000000000 7e 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 0000028c 00240001 supernet
3ffe8010000700150000000000000000 40 00000000000000000000000000000000 00 
3ffe8010000700150000000000000002 00000400 00000000 00000000 00000003 supernet
fe800000000000000000000000000000 0a 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000000 00240001 supernet
ff000000000000000000000000000000 08 00000000000000000000000000000000 00 
00000000000000000000000000000000 00000100 00000000 00000000 00040001 supernet

I do not see so fast changes in the routing itself so I suspect is only some
readout error - maybe in /proc. I do not exclude possibility of memory errors
but in this case I would expect the errors to happen not only at the beginnings
Of lines.

R.
-- 
Avec mes souvenirs/J'ai allumé le feu
Mes chagrins, mes plaisirs/Je n'ai plus besoin d'eux!


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