On Wed, Sep 28, 2016 at 08:22:24AM -0700, Doug Smythies wrote: > On 2016.09.27 23:20 Joonsoo Kim wrote: > > On Wed, Sep 28, 2016 at 02:18:42PM +0900, Joonsoo Kim wrote: > >> On Tue, Sep 27, 2016 at 08:13:58PM -0700, Doug Smythies wrote: > >>> By the way, I can eliminate the problem by doing this: > >>> (see also: https://bugzilla.kernel.org/show_bug.cgi?id=172991) > >> > >> I think that Johannes found the root cause of the problem and they > >> (Johannes and Vladimir) will solve the root cause. > >> > >> However, there is something useful to do in SLAB side. > >> Could you test following patch, please? > >> > >> Thanks. > >> > >> ---------->8-------------- > >> diff --git a/mm/slab.c b/mm/slab.c > >> index 0eb6691..39e3bf2 100644 > >> --- a/mm/slab.c > >> +++ b/mm/slab.c > >> @@ -965,7 +965,7 @@ static int setup_kmem_cache_node(struct kmem_cache *cachep, > >> * guaranteed to be valid until irq is re-enabled, because it will be > >> * freed after synchronize_sched(). > >> */ > >> - if (force_change) > >> + if (n->shared && force_change) > >> synchronize_sched(); > > > > Oops... > > > > s/n->shared/old_shared/ > > Yes, that seems to work fine. After boot everything is good. > Then I tried and tried to get it to mess up, but could not. Thanks for confirm. I will send a formal patch, soon. Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>