On 01/29/2017 07:35 PM, Anshuman Khandual wrote:
> + if ((new_pol->mode == MPOL_BIND)
> + && nodemask_has_cdm(new_pol->v.nodes))
> + set_vm_cdm(vma);
So, if you did:
mbind(addr, PAGE_SIZE, MPOL_BIND, all_nodes, ...);
mbind(addr, PAGE_SIZE, MPOL_BIND, one_non_cdm_node, ...);
You end up with a VMA that can never have KSM done on it, etc... Even
though there's no good reason for it. I guess /proc/$pid/smaps might be
able to help us figure out what was going on here, but that still seems
like an awful lot of damage.
