On Tue, 19 Apr 2011, Pekka Enberg wrote: > On Tue, Apr 19, 2011 at 6:46 PM, James Bottomley > <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > > It compiles OK, but crashes on boot in fsck. The crash is definitely mm > > but looks to be a slab problem (it's a null deref on a spinlock in > > add_partial(), which seems unrelated to this patch). That means that the per node structures have not been setup yet. Node hotplug not working? > > It seems to be a random intermittent mm crash because the next reboot > > crashed with the same trace but after the fsck had completed and the > > third came up to the login prompt. > > Looks like a genuine SLUB problem on parisc. Christoph? Race between node hotplug and use of the slab on that node?