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    SubjectRe: [BUGFIX] NULL pointer dereference in __vm_enough_memory()
    On Sun, Aug 12, 2007 at 01:48:31PM +0800, WU Fengguang wrote:
    > On Sat, Aug 11, 2007 at 11:31:09PM +0530, Balbir Singh wrote:
    > > Andrew Morton wrote:
    > > > On Sat, 11 Aug 2007 20:00:12 +0530 "Balbir Singh" <balbir@linux.vnet.ibm.com> wrote:
    > > >>>
    > > >> Shouldn't we just not stop vm accounting for kernel threads?
    > > >>
    > > >
    > > > Could be. It'd help heaps if we knew which patch in -mm caused
    > > > this, but from a quick peek it seems to me that mainline should be
    > > > vulnerable as well.
    > >
    > > Thats a valid point. It would be interesting to see what the overcommit
    > > setting was, when the panic occurred.
    >
    > FYI, I do have nondefault overcommit settings:
    >
    > vm.overcommit_memory = 2
    > vm.lowmem_reserve_ratio = 1 1

    Yes, the bug disappears when changing to default overcommit_memory!

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