From: Michal Kubecek
Date: Tue, 8 Mar 2016 14:44:15 +0100 (CET)
> Commit 2ac3ac8f86f2 ("ipv6: prevent fib6_run_gc() contention") reduced
> the risk of contention on FIB6 garbage collector lock on systems with
> many CPUs. However, one of our customers can still observe heavy
> contention on fib6
Commit 2ac3ac8f86f2 ("ipv6: prevent fib6_run_gc() contention") reduced
the risk of contention on FIB6 garbage collector lock on systems with
many CPUs. However, one of our customers can still observe heavy
contention on fib6_gc_lock which can even trigger the soft lockup
detector.
This is caused b