On 10/02/2014 05:23 AM, Hugh Dickins wrote: > I'm glad to hear they've confirmed some vm_area_struct corruption: > any ideas on where that's coming from? Hugh, I think that what we're seeing isn't a corruption of vm_area_struct per-se, but something weirder. I've poisoned every spot where vm_area_struct is allocated, and yet there seems to be nothing that's hitting that field before we end up using a "zeroed out" vm_area_struct. The results are the same both with and without kasan, there seems to be no corruption happening anywhere, but we somehow end up with an empty vm_area_struct. It also somewhat makes sense considering that we're seeing no slub corruption either. Either something is zeroing out *exactly* vm_area_struct, or it's not really corruption... Thanks, Sasha -- 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>