Re: mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-09 Thread Johannes Weiner
On Fri, Feb 07, 2014 at 12:52:33PM -0800, Andrew Morton wrote: > On Thu, 6 Feb 2014 11:41:36 -0500 Johannes Weiner wrote: > > > > > Make the shadow lru->node[i].lock IRQ-safe to remove the order > > dictated by interruption. This slightly increases the IRQ-disabled > > section in the shadow shr

Re: mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-07 Thread Andrew Morton
On Thu, 6 Feb 2014 11:41:36 -0500 Johannes Weiner wrote: > > Make the shadow lru->node[i].lock IRQ-safe to remove the order > dictated by interruption. This slightly increases the IRQ-disabled > section in the shadow shrinker, but it still drops all locks and > enables IRQ after every reclaimed

Re: mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-07 Thread Johannes Weiner
On Thu, Feb 06, 2014 at 02:18:24PM -0800, Hugh Dickins wrote: > On Thu, 6 Feb 2014, Johannes Weiner wrote: > > On Wed, Feb 05, 2014 at 07:50:10PM -0800, Hugh Dickins wrote: > > > == > > > [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected

Re: mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-06 Thread Hugh Dickins
On Thu, 6 Feb 2014, Johannes Weiner wrote: > On Wed, Feb 05, 2014 at 07:50:10PM -0800, Hugh Dickins wrote: > > == > > [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] > > 3.14.0-rc1-mm1 #1 Not tainted > > --

Re: mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-06 Thread Johannes Weiner
Hi Hugh, On Wed, Feb 05, 2014 at 07:50:10PM -0800, Hugh Dickins wrote: > == > [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] > 3.14.0-rc1-mm1 #1 Not tainted > -- > kswapd0/48 [HC0[

mmotm 2014-02-05 list_lru_add lockdep splat

2014-02-05 Thread Hugh Dickins
== [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] 3.14.0-rc1-mm1 #1 Not tainted -- kswapd0/48 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: (&(&lru->node[i].lock)->rlock){+.+.-.},