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    SubjectRe: [Bug #14016] mm/ipw2200 regression
    [Cc netdev]

    On Wed, Aug 26, 2009 at 09:09:44AM +0300, Pekka Enberg wrote:
    > On Tue, Aug 25, 2009 at 11:34 PM, Rafael J. Wysocki<rjw@sisk.pl> wrote:
    > > This message has been generated automatically as a part of a report
    > > of recent regressions.
    > >
    > > The following bug entry is on the current list of known regressions
    > > from 2.6.30.  Please verify if it still should be listed and let me know
    > > (either way).
    > >
    > > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=14016
    > > Subject         : mm/ipw2200 regression
    > > Submitter       : Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    > > Date            : 2009-08-15 16:56 (11 days old)
    > > References      : http://marc.info/?l=linux-kernel&m=125036437221408&w=4
    >
    > If am reading the page allocator dump correctly, there's plenty of
    > pages left but we're unable to satisfy an order 6 allocation. There's
    > no slab allocator involved so the page allocator changes that went
    > into 2.6.31 seem likely. Mel, ideas?

    It's an atomic order-6 allocation, the chances for this to succeed
    after some uptime become infinitesimal. The chunks > order-2 are
    pretty much exhausted on this dump.

    64 pages, presumably 256k, for fw->boot_size while current ipw
    firmware images have ~188k. I don't know jack squat about this
    driver, but given the field name and the struct:

    struct ipw_fw {
    __le32 ver;
    __le32 boot_size;
    __le32 ucode_size;
    __le32 fw_size;
    u8 data[0];
    };

    fw->boot_size alone being that big sounds a bit fishy to me.

    Hannes
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