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    SubjectRe: 2.6.15-rc5-mm3 -- BUG: using smp_processor_id() in preemptible [00000001] code: swapper/1
    Miles Lane <miles.lane@gmail.com> wrote:
    >
    > Sorry, not sure who owns this code.
    >
    > Here's something I don't remember seeing before. Not sure if it is significant.
    >
    > [4294669.070000] PCI quirk: region 1000-107f claimed by ICH4 ACPI/GPIO/TCO
    > [4294669.070000] PCI quirk: region 1180-11bf claimed by ICH4 GPIO
    > [4294669.070000] PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
    > [4294669.070000] PCI: Transparent bridge - 0000:00:1e.0
    > [4294669.070000] PCI: Bus #03 (-#06) may be hidden behind transparent
    > bridge #02 (-#02) (try 'pci=assign-busses')

    Greg & Dominik.

    > This is also new.
    >
    > [4294671.491000] MC: drivers/edac/edac_mc.c version MC $Revision: 1.4.2.10 $
    > [4294671.491000] PCI- Detected Parity Error on 0000:00:1e.0 0000:00:1e.0
    > [4294671.492000] PCI- Detected Parity Error on 0000:00:1e.0 0000:00:1e.0

    Alan.

    > Here's the BUG output:
    >
    > [4294671.538000] Freeing unused kernel memory: 220k freed
    > [4294671.538000] BUG: using smp_processor_id() in preemptible
    > [00000001] code: swapper/1
    > [4294671.539000] caller is mod_page_state_offset+0x12/0x28
    > [4294671.539000] [<c1003723>] dump_stack+0x16/0x1a
    > [4294671.539000] [<c110c1eb>] debug_smp_processor_id+0x77/0x90
    > [4294671.539000] [<c10413d3>] mod_page_state_offset+0x12/0x28
    > [4294671.540000] [<c10fe7b6>] submit_bio+0x4a/0xaf
    > [4294671.540000] [<c105aac0>] submit_bh+0xc5/0xe7
    > [4294671.541000] [<c105ab57>] ll_rw_block+0x75/0x9a
    > [4294671.541000] [<c10ba06f>] ext3_find_entry+0x11b/0x2cb
    > [4294671.542000] [<c10ba3ee>] ext3_lookup+0x22/0x93
    > [4294671.542000] [<c1062bae>] real_lookup+0x52/0xb8
    > [4294671.542000] [<c1063259>] do_lookup+0x50/0x84
    > [4294671.543000] [<c106345d>] __link_path_walk+0x1d0/0x44e
    > [4294671.543000] [<c106372d>] link_path_walk+0x52/0xcb
    > [4294671.544000] [<c1063abe>] path_lookup+0x14f/0x189
    > [4294671.544000] [<c1063b30>] __path_lookup_intent_open+0x38/0x68
    > [4294671.545000] [<c1063b76>] path_lookup_open+0x16/0x18
    > [4294671.545000] [<c10642d4>] open_namei+0x6c/0x3d8
    > [4294671.545000] [<c105618a>] filp_open+0x23/0x3a
    > [4294671.546000] [<c1056432>] do_sys_open+0x3c/0xae
    > [4294671.546000] [<c10564b5>] sys_open+0x11/0x13
    > [4294671.546000] [<c10003fa>] init+0xe8/0x182
    > [4294671.547000] [<c1000eb5>] kernel_thread_helper+0x5/0xb
    >
    > A little later, I get this:
    >
    > [4294676.542000] BUG: using smp_processor_id() in preemptible
    > [00000001] code: rcS/942
    > [4294676.542000] caller is mod_page_state_offset+0x12/0x28
    > [4294676.542000] [<c1003723>] dump_stack+0x16/0x1a
    > [4294676.554000] [<c110c1eb>] debug_smp_processor_id+0x77/0x90
    > [4294676.565000] [<c10413d3>] mod_page_state_offset+0x12/0x28
    > [4294676.577000] [<c104911b>] __handle_mm_fault+0x1f/0x18e
    > [4294676.589000] [<c1013d7f>] do_page_fault+0x170/0x492
    > [4294676.600000] [<c10033f7>] error_code+0x4f/0x54
    > [4294676.612000] [<c10027ae>] ret_from_fork+0x6/0x14

    Nick.

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