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    SubjectRe: Linux 2.6.20-rc7

    On Wed, 31 Jan 2007, PaweÅ Sikora wrote:
    > The 2.6.20-rcX have the same nasty bug as 2.6.19.x.
    > [ an oops inside kmem_get_pages ]

    Pabel, can you detail more exactly which kernels don't work, and which do?

    From bugzilla:

    - 2.6.18.x does work
    - doesn't work.
    - what about plain 2.6.19?
    - can you please test some of the 2.6.19-rcX kernels? Especially
    2.6.19-rc1 would be good to test.

    Since it apparently already happens in 2.6.19 (but it would be really good
    to know exactly when it starts), and considering _where_ it happens, I'd
    be inclined to blame commit d2e7b7d0: "fix potential stack overflow in
    mm/slab.c" by Suresh.

    When do_tune_cpucache() is called at bootup, I'm not sure how safe it is
    to do the kzalloc() thing.

    I've added a number of hopefully appropriate people to the Cc. Guys?
    Apparently it only happens with MEMORY_HOTPLUG (and possibly with just an
    SMP kernel on UP), which probably explains why it's been around without
    people really complaining very loudly.

     \ /
      Last update: 2007-01-31 17:11    [W:0.020 / U:8.092 seconds]
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