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    SubjectRe: [PATCH v3 13/14] mm, hugetlb: retry if failed to allocate and there is concurrent user
    On Wed, 15 Jan 2014 12:47:00 -0800 Davidlohr Bueso <davidlohr@hp.com> wrote:

    > > Well, we're mainly looking for bugfixes this last in the cycle.
    > > "[PATCH v3 03/14] mm, hugetlb: protect region tracking via newly
    > > introduced resv_map lock" fixes a bug, but I'd assumed that it depended
    > > on earlier patches.
    >
    > It doesn't seem to depend on anything. All 1-7 patches apply cleanly on
    > linux-next, the last change to mm/hugetlb.c was commit 3ebac7fa (mm:
    > dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE).
    >
    > > If we think that one is serious then it would be
    > > better to cook up a minimal fix which is backportable into 3.12 and
    > > eariler?
    >
    > I don't think it's too serious, afaik it's a theoretical race and I
    > haven't seen any bug reports for it. So we can probably just wait for
    > 3.14, as you say, it's already late in the cycle anyways.

    OK, thanks.

    > Just let me
    > know what you want to do so we can continue working on the actual
    > performance issue.

    A resend after -rc1 would suit.


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