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    SubjectRe: 2.6.13-mm3
    On Mon, Sep 12, 2005 at 12:56:41PM -0700, Andrew Morton wrote:
    > Sonny Rao <sonny@burdell.org> wrote:
    > >
    > > On Mon, Sep 12, 2005 at 02:43:50AM -0700, Andrew Morton wrote:
    > > <snip>
    > > > - There are several performance tuning patches here which need careful
    > > > attention and testing. (Does anyone do performance testing any more?)
    > > <snip>
    > > >
    > > > - The size of the page allocator per-cpu magazines has been increased
    > > >
    > > > - The page allocator has been changed to use higher-order allocations
    > > > when batch-loading the per-cpu magazines. This is intended to give
    > > > improved cache colouring effects however it might have the downside of
    > > > causing extra page allocator fragmentation.
    > > >
    > > > - The page allocator's per-cpu magazines have had their lower threshold
    > > > set to zero. And we can't remember why it ever had a lower threshold.
    > > >
    > >
    > > What would you like? The usual suspects: SDET, dbench, kernbench ?
    > >
    >
    > That would be a good start, thanks. The higher-order-allocations thing is
    > mainly targeted at big-iron numerical computing I believe.
    >
    > I've already had one report of fragmentation-derived page allocator
    > failures (http://bugzilla.kernel.org/show_bug.cgi?id=5229).

    Ok, I'm getting much further on ppc64 thanks to Anton B.

    So far, I need patched in the hvc console fix, Anton's SCSI fix for
    2.6.14-rc1, Paulus's EEH fix, and I reverted
    remove-near-all-bugs-in-mm-mempolicyc.patch and
    convert-mempolicies-to-nodemask_t.patch

    I got most of the way through the boot scripts and crashed while
    bringing up the loopback interface.

    Here's the latest PPC64 crash on 2.6.13-mm3:

    smp_call_function on cpu 5: other cpus not responding (5)
    cpu 0x5: Vector: 0 at [c00000000f3b6b00]
    pc: 000000000000003d
    lr: 000000000000003d
    sp: c00000000f3b6a90
    msr: 8000000000009032
    current = 0xc000000002018050
    paca = 0xc00000000048a400
    pid = 1679, comm = ip
    enter ? for help
    5:mon> t

    (xmon hangs here)

    Anyone have ideas on what to try?
    -
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