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    Subjectodd lockdep messages
    From
    Date
    (Not sure when this started, just noticed it... Wasn't present in
    2.6.33-rc7-mmotm0210, is in 2.6.33-mmotm0302 and -mmotm0304).

    Seen in dmesg:

    dmesg | grep -C 5 'BUG: key'
    [ 0.978944] Monitor-Mwait will be used to enter C-1 state
    [ 0.979944] Monitor-Mwait will be used to enter C-2 state
    [ 0.980943] Monitor-Mwait will be used to enter C-3 state
    [ 0.981056] Marking TSC unstable due to TSC halts in idle
    [ 0.981298] Switching to clocksource hpet
    [ 1.012163] BUG: key ffff88011efbf500 not in .data!
    [ 1.012284] BUG: key ffff88011efbf548 not in .data!
    [ 1.015935] thermal LNXTHERM:01: registered as thermal_zone0
    [ 1.016070] ACPI: Thermal Zone [THM] (39 C)
    [ 1.022610] Real Time Clock Driver v1.12b
    [ 1.022955] Linux agpgart interface v0.103
    [ 1.023342] Hangcheck: starting hangcheck timer 0.9.0 (tick is 180 seconds, margin is 60 seconds).
    --
    [ 1.876870] iwlagn 0000:0c:00.0: setting latency timer to 64
    [ 1.876914] iwlagn 0000:0c:00.0: Detected Intel Wireless WiFi Link 5100AGN REV=0x54
    [ 1.899041] iwlagn 0000:0c:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
    [ 1.899170] iwlagn 0000:0c:00.0: irq 31 for MSI/MSI-X
    [ 1.899467] iwlagn 0000:0c:00.0: firmware: requesting iwlwifi-5000-2.ucode
    [ 1.899537] BUG: key ffff88011c57e670 not in .data!
    [ 1.899629] console [netcon0] enabled
    [ 1.899644] netconsole: network logging started
    [ 1.899699] ohci1394 0000:03:01.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
    [ 2.053034] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
    [ 2.052015] ohci1394: fw-host0: Set PHY Reg timeout [0xffffffff/0x00004000/100]
    --
    [ 10.518458] usb 5-1: Manufacturer: Broadcom Corp
    [ 10.518460] usb 5-1: SerialNumber: 0123456789ABCD
    [ 10.520315] usb 5-1: config 0 descriptor??
    [ 10.586699] iwlagn 0000:0c:00.0: request for firmware file 'iwlwifi-5000-2.ucode' failed.
    [ 10.586873] iwlagn 0000:0c:00.0: firmware: requesting iwlwifi-5000-1.ucode
    [ 10.586962] BUG: key ffff88011c57e670 not in .data!
    [ 10.594431] iwlagn 0000:0c:00.0: request for firmware file 'iwlwifi-5000-1.ucode' failed.
    [ 10.594436] iwlagn 0000:0c:00.0: no suitable firmware found!
    [ 10.594658] iwlagn 0000:0c:00.0: PCI INT A disabled
    [ 10.611235] usb 1-4.1: new low speed USB device using ehci_hcd and address 5
    [ 10.713441] usb 1-4.1: New USB device found, idVendor=045e, idProduct=0023

    (-0302 threw BUG: 3 times, the first 2 and the last. In -0304, the third
    one appears as well).

    Worth instrumenting and chasing down? If so, what should a crash test dummy
    be doing here? ;)

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