Re: OOPS: Multipath routing 2.4.17

From: Andi Kleen (ak@suse.de)
Date: Fri Mar 01 2002 - 17:43:49 EST


Julian Anastasov <ja@ssi.bg> writes:

> Hello,
>
> Kain wrote:
>
> > impossible 888
> > divide error: 0000
>
> > > > EIP; c024c5ea <fib_select_multipath+5a/a0> <=====
> > Trace; c02232e8 <ip_route_output_slow+318/670>
>
> There is no write locking in fib_select_multipath,
> combined with high rate of route resolutions and ... boom,
> fi->fib_power is 0:

In theory yes, but the

#if 1
                if (power <= 0) {
                        printk(KERN_CRIT "impossible 777\n");
                        return;
                }
#endif

should stop it; making it just not work, but not crash.
If he still gets a division by zero then something else is fishy.

-Andi
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