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    SubjectRe: Problems with 2.6.15-mm1 and mm2.
    Martin Bligh <mbligh@google.com> wrote:
    >
    > OK, so on -mm1 we get:
    >
    > Unable to handle kernel NULL pointer dereference at virtual address 00000004
    > printing eip:
    > c01fccd2
    > *pde = 0042d001
    > *pte = 00000000
    > Oops: 0000 [#1]
    > SMP
    > last sysfs file:
    > Modules linked in:
    > CPU: 0
    > EIP: 0060:[<c01fccd2>] Not tainted VLI
    > EFLAGS: 00010286 (2.6.15-mm1-autokern1)
    > EIP is at pci_call_probe+0x1a/0xa1
    > eax: 00000000 ebx: ffffffed ecx: e748a030 edx: c03a4680
    > esi: e7767800 edi: c03a4680 ebp: ffffffff esp: e749fef0
    > ds: 007b es: 007b ss: 0068
    > Process swapper (pid: 1, threadinfo=e749e000 task=e748a030)
    > Stack: <0>ffffffed e7767800 c03a4680 c03a46ac c01fcd8c c03a4680 e7767800
    > c03a441c
    > <0>c03a4680 e7767800 c03a46ac c01fcdbf c03a4680 e7767800
    > e7767800 00000000
    > <0>e7767848 c021c265 e7767848 e7767848 00000000 c021c311
    > c021c34a c03a46ac
    > Call Trace:
    > [<c01fcd8c>] __pci_device_probe+0x33/0x47
    > [<c01fcdbf>] pci_device_probe+0x1f/0x34
    > [<c021c265>] driver_probe_device+0x3a/0x84
    > [<c021c311>] __driver_attach+0x0/0x60
    > [<c021c34a>] __driver_attach+0x39/0x60
    > [<c021ba18>] bus_for_each_dev+0x47/0x6d
    > [<c01f4d5a>] kobject_add+0x76/0x95
    > [<c021c385>] driver_attach+0x14/0x18
    > [<c021c311>] __driver_attach+0x0/0x60
    > [<c021be30>] bus_add_driver+0x54/0x87
    > [<c021c72c>] driver_register+0x3b/0x3e
    > [<c01fcfa6>] __pci_register_driver+0x7e/0x8c
    > [<c03f646d>] qla1280_init+0xc/0xf
    > [<c03e4789>] do_initcalls+0x4b/0x99
    > [<c0100393>] init+0x98/0x195
    > [<c01002fb>] init+0x0/0x195
    > [<c0100ea9>] kernel_thread_helper+0x5/0xb
    >
    > from the NUMA-Q. http://test.kernel.org/19793/debug/console.log
    >

    Yes, I asked Greg about that - we don't know what's causing it yet. I have
    a bad feeling that this bug will go into Linus's tree if we don't fix it
    quick.

    I had problems with gregkh-pci-x86-pci-domain-support-the-meat.patch. It
    might be worth reverting that.

    >
    > on -mm2 I get the x86_64 seems to lock up (NFI why ... looking at it),
    > the NUMA-Q and x440 panic (very similar to the above).
    >
    > I think Andy figured out what was causing those panics. Can we drop
    > those patches until they're fixed?
    >

    I'm not aware of any buggy x86_64 patches in -mm2 :(

    I guess you don't have the time to sit down and do a bisection search.
    It'd take a solid few hours...
    -
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