On Fri, 8 Jun 2012 13:23:56 -0700 Pravin Shelar <pshelar@xxxxxxxxxx> wrote: > On Fri, Jun 8, 2012 at 1:15 PM, Christoph Lameter <cl@xxxxxxxxx> wrote: > > On Fri, 8 Jun 2012, Andrew Morton wrote: > > > >> OK. __I assume this bug has been there for quite some time. > > > > Well the huge pages refcount tricks caused the issue. > > > >> How serious is it? __Have people been reporting it in real workloads? > >> How to trigger it? __IOW, does this need -stable backporting? > > > > Possibly. > > If this patch is getting back-ported then we shld also do same for > 5bf5f03c271907978 (mm: fix slab->page flags corruption) which fixes > other issue related to slub and huge page sharing. Well I don't know if either are getting backported yet. To decide that we would have to understand the end-user impact of the bug(s). Please tell us? -- 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>