Re: [PATCH net-next v2 0/3] ipv6: per netns FIB6 walkers and garbage collector

2016-03-08 Thread David Miller
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

[PATCH net-next v2 0/3] ipv6: per netns FIB6 walkers and garbage collector

2016-03-08 Thread Michal Kubecek
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