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    Subjectarch_init_sched_domains() oops
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    Date
    This happened on a NUMA running 2.6.8-rc2-mm1:

    Unable to handle kernel NULL pointer dereference at virtual address 00000004
    printing eip:
    c049a5dd
    *pde = 004bc001
    *pte = 00000000
    Oops: 0000 [#1]
    PREEMPT SMP
    Modules linked in:
    CPU: 0
    EIP: 0060:[<c049a5dd>] Not tainted VLI
    EFLAGS: 00010256 (2.6.8-rc2-mm1)
    EIP is at arch_init_sched_domains+0x5d/0x4fc
    eax: 00000001 ebx: c04cf5cc ecx: 00000000 edx: 00000000
    esi: 00000000 edi: 00000000 ebp: eb9b9fd8 esp: eb9b9f68
    ds: 007b es: 007b ss: 0068
    Process swapper (pid: 1, threadinfo=eb9b9000 task=eb991730)
    Stack: c04cf5cc 00000000 00000000 c04cf5cc 00002865 0000ffff eb9b9000 c011032a
    00000001 00000000 00000000 00000000 00000001 004bc001 c0113224 c04d314c
    00000020 00000000 c04d314c 00000020 00000000 c0494eb3 c0002000 00000001
    Call Trace:
    [<c011032a>] flush_tlb_all+0x22/0x3c
    [<c0113224>] zap_low_mappings+0x54/0x5c
    [<c0494eb3>] smp_cpus_done+0x1b/0x20
    [<c048d5cc>] smp_init+0x94/0x9c
    [<c049aa84>] sched_init_smp+0x8/0x14
    [<c010052d>] init+0xa9/0x1a4
    [<c0100484>] init+0x0/0x1a4
    [<c0102385>] kernel_thread_helper+0x5/0xc
    Code: 07 0f 8f 96 02 00 00 8d b4 26 00 00 00 00 8b 45 bc c1 e0 02 89 45 b4 89 c2 8b 82 00 10 3f c0 c1 e0 02 8b 80 c0 0f 3f c0 89 45 b0 <8b> 3d 04 00 00 00 83 c7 04 b9 01 00 00 00 89 fb 31 c0 f3 af 74
    <0>Kernel panic - not syncing: Attempted to kill init!

    Is there an updated sched domains patch I should be trying instead?

    -- Dave

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