LARTC - Jul 2002 - IMQ crash dump

Hi

I try setup imq pseudo device for shaping
I''m work such script
#!/bin/sh

TC=/sbin/tc

/sbin/modprobe imq numdevs=1
/sbin/ip link set imq0 up
$TC qdisc add dev imq0 handle 1: root htb default 1
$TC class add dev imq0 parent 1: classid 1:1 htb rate 10mbit
# client1 tunnel tunnel
$TC class add dev imq0 parent 1: classid 1:2 htb rate 256kbit
$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
10.255.255.40/30 flowid 1:2
$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
10.255.255.52/30 flowid 1:2
# client2
$TC class add dev imq0 parent 1: classid 1:3 htb rate 128kbit
$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:3
# client3
$TC class add dev imq0 parent 1: classid 1:4 htb rate 64kbit
$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:4
# client4
$TC class add dev imq0 parent 1: classid 1:5 htb rate 64kbit ceil 768kbit
$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:5

# send to intarface all from eth0.9 (clients)
/sbin/iptables -t mangle -A PREROUTING -i eth0.9 -j IMQ

All patches I get from http://luxik.cdi.cz/~patrick/imq/
iptables and kernel modules compiled and loaded successfully
But after run last line
/sbin/iptables -t mangle -A PREROUTING -i eth0.9 -j IMQ
I got kernel crush and register stack
I can''t save it because kernel frezze

O, my kernel is 
Linux watcher 2.4.19-pre8-ac5 #2 Wed Jul 10 10:08:55 EEST 2002 i686 unknown

May be I do something wrong or any other ideas?

-- 
Best regard, Alexander Trotsai aka MAGE-RIPE aka MAGE-UANIC
My PGP at ftp://blackhole.adamant.net/pgp/trotsai.key[.asc]
Big trouble - The Borg tried to assimilate your system. Resistance is futile.

Hi Alexander,

Alexander Trotsai wrote:
>Hi
>
>I try setup imq pseudo device for shaping
>I''m work such script
>#!/bin/sh
>
>TC=/sbin/tc
>
>/sbin/modprobe imq numdevs=1
>/sbin/ip link set imq0 up
>$TC qdisc add dev imq0 handle 1: root htb default 1
>$TC class add dev imq0 parent 1: classid 1:1 htb rate 10mbit
># client1 tunnel tunnel
>$TC class add dev imq0 parent 1: classid 1:2 htb rate 256kbit
>$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
10.255.255.40/30 flowid 1:2
>$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
10.255.255.52/30 flowid 1:2
># client2
>$TC class add dev imq0 parent 1: classid 1:3 htb rate 128kbit
>$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:3
># client3
>$TC class add dev imq0 parent 1: classid 1:4 htb rate 64kbit
>$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:4
># client4
>$TC class add dev imq0 parent 1: classid 1:5 htb rate 64kbit ceil 768kbit
>$TC filter add dev imq0 protocol ip parent 1:0 prio 5 u32 match ip src
x.x.x.x/30 flowid 1:5
>
># send to intarface all from eth0.9 (clients)
>/sbin/iptables -t mangle -A PREROUTING -i eth0.9 -j IMQ
>
>All patches I get from http://luxik.cdi.cz/~patrick/imq/
>iptables and kernel modules compiled and loaded successfully
>But after run last line
>/sbin/iptables -t mangle -A PREROUTING -i eth0.9 -j IMQ
>I got kernel crush and register stack
>I can''t save it because kernel frezze
>
Thats bad, i can''t really help you without at least the registers and 
the corresponding symbols ...
You could try two things: use serial console to capture the output or 
use kdb to obtain a backtrace
and the registers after it crashed. kdb requires recompiling the kernel, 
but if you are used to using
debuggers it can give you alot more information.
>
>
>O, my kernel is 
>Linux watcher 2.4.19-pre8-ac5 #2 Wed Jul 10 10:08:55 EEST 2002 i686 unknown
>
>May be I do something wrong or any other ideas?
>
Hmm there''s not much to do wrong, everything seems to be ok .... seems 
to be imq''s fault.
If you send me your config (off-list please)  i can compile a kernel 
with it and try it myself ..

Bye,
Patrick