IPv6 routing table

[kamal <kamalnee@iitk.ac.in>]

I have made a netfilter module which doesn't directly use routing table, 
but which is causing a strange error related to IPv6 routing table. 
Sometime after its use, the machine hangs, but stack trace doesn't have 
any of my functions. I am only using ip6_route_input() and 
skb->dst->input() from the module.

What can be the possible mistake?

Top of the stack trace reads:

fib6_del
fib6_clean_node
fib6_run_gc
fib6_walk_continue
fib6_walk
ip6_fib_timer
fib6_run_gc
fib6_clean_tree
fib6_walker_list
fib6_walker_list
ip6_routing_table
fib6_clean_node

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