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    SubjectBadness seen on 2.6.26-rc2 with lockdep enabled
    I see the following error on my power box at boot up.

    RTAS: event: 14, Type: Platform Error, Severity: 2
    ------------[ cut here ]------------
    Badness at kernel/lockdep.c:2680
    NIP: c0000000000ae538 LR: c0000000000ae51c CTR: 0000000000000000
    REGS: c0000000e7b139a0 TRAP: 0700 Not tainted (2.6.26-rc2-mm1)
    MSR: 8000000000029032 <EE,ME,IR,DR> CR: 24000042 XER: 20000000
    TASK = c0000000e7644620[411] 'rtasd' THREAD: c0000000e7b10000 CPU: 1
    GPR00: 0000000000000000 c0000000e7b13c20 c000000000a55ef0 0000000000000001
    GPR04: 0000000000000001 c00000000004bfb8 2d37313000000000 2d37313031303438
    GPR08: 3644442000000000 c000000000ea3018 0000000000000020 0000000000000001
    GPR12: 3644442000000000 c000000000a94600 0000000000000000 0000000000000000
    GPR16: 0000000000000000 0000000000000000 4000000001c00000 c00000000086f400
    GPR20: 0000000000000000 0000000000000001 00000000000000e4 000000000246f400
    GPR24: c000000000a9c498 0000000000000008 c00000000004bfb8 c00000000087a5d8
    GPR28: c00000000092cd48 0000000000000001 c0000000009bb738 c0000000e7b13c20
    NIP [c0000000000ae538] .check_flags+0x9c/0x174
    LR [c0000000000ae51c] .check_flags+0x80/0x174
    Call Trace:
    [c0000000e7b13c20] [c00000000004bc70] .pSeries_log_error+0x5c/0x400 (unreliable)
    [c0000000e7b13ca0] [c0000000000b35c0] .lock_release+0x80/0x204
    [c0000000e7b13d50] [c0000000005cfcf8] ._spin_unlock_irqrestore+0x34/0x94
    [c0000000e7b13de0] [c00000000004bfb8] .pSeries_log_error+0x3a4/0x400
    [c0000000e7b13ef0] [c00000000004c218] .rtasd+0x98/0x100
    [c0000000e7b13f90] [c00000000002848c] .kernel_thread+0x4c/0x68
    Instruction dump:
    e92d01b0 8009085c 2f800000 40be002c 481f1b9d 60000000 2fa30000 419e00c4
    e93e80f8 80090000 2f800000 409e00b4 <0fe00000> 480000ac 78290464 80090014
    possible reason: unannotated irqs-on.
    irq event stamp: 30
    hardirqs last enabled at (29): [<c0000000000b1d98>] .trace_hardirqs_on+0x1c/0x3
    0
    hardirqs last disabled at (30): [<c0000000000aebac>] .trace_hardirqs_off+0x1c/0x
    30
    softirqs last enabled at (28): [<c00000000008bd08>] .__do_softirq+0x180/0x1a8
    softirqs last disabled at (21): [<c000000000028124>] .call_do_softirq+0x14/0x24


    --
    Warm Regards,
    Balbir Singh
    Linux Technology Center
    IBM, ISTL


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