On Tue, 2016-06-28 at 08:22 +0200, Eric Dumazet wrote: > Follow the stack trace and add another cond_resched() where it is needed > then ? > > Lot of this code was written decade ago where nobody expected a root > user was going to try hard to crash its host ;) > > I did not check if the following is valid (Maybe __fib6_clean_all() is > called with some spinlock/rwlock held)
Well, fib6_run_gc() can call it with spin_lock_bh(&net->ipv6.fib6_gc_lock) so this wont work. We need more invasive changes.
