On Mon, 7 Nov 2016 14:32:56 -0800 Thomas Garnier <thgarnie@xxxxxxxxxx> wrote: > On Mon, Nov 7, 2016 at 2:19 PM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Mon, 7 Nov 2016 13:11:14 -0800 Thomas Garnier <thgarnie@xxxxxxxxxx> wrote: > > > >> From: Greg Thelen <gthelen@xxxxxxxxxx> > >> > >> While testing OBJFREELIST_SLAB integration with pagealloc, we found a > >> bug where kmem_cache(sys) would be created with both CFLGS_OFF_SLAB & > >> CFLGS_OBJFREELIST_SLAB. > >> > >> The original kmem_cache is created early making OFF_SLAB not possible. > >> When kmem_cache(sys) is created, OFF_SLAB is possible and if pagealloc > >> is enabled it will try to enable it first under certain conditions. > >> Given kmem_cache(sys) reuses the original flag, you can have both flags > >> at the same time resulting in allocation failures and odd behaviors. > > > > Can we please have a better description of the problems which this bug > > causes? Without this info it's unclear to me which kernel version(s) > > need the fix. > > > > Given that the bug is 6 months old I'm assuming "not very urgent". > > > > I will add more details and send another round. Please simply send the additional changelog text in this thread - processing an entire v4 patch just for a changelog fiddle is rather heavyweight. -- 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>