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    SubjectRe: [BUG] unable to handle kernel paging request in next-20080516
    Date
    <posted & mailed>

    (I've dropped akpm because the mail server doesn't like where I'm sending
    from with this address)

    Greg KH wrote:

    > On Sun, May 18, 2008 at 02:14:23AM -0700, Andrew Morton wrote:
    >>
    >> (cc's added)
    >>
    >> On Sat, 17 May 2008 12:50:24 +0000 (UTC) Sitsofe Wheeler
    >> <sitsofe@yahoo.com> wrote:
    >>
    >> > BUG: unable to handle kernel paging request at e6f17fac
    >> > IP: [<c02604d6>] scsi_bus_uevent+0x1/0x17
    >> > *pde = 2714b163 *pte = 26f17160
    >> > Oops: 0000 [#1] DEBUG_PAGEALLOC
    >> > last sysfs file:
    >>
    >> I thought we'd already fixed this?
    >
    > If you want to test them out yourself, the patches are this one first:
    >
    http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver-core.current/driver-core-add-device_create_vargs-and-device_create_drvdata.patch
    > and then add any one of the rest of the patches in the directory at:
    >
    http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver-core.current/
    > depending on the subsystem you are having problems with. There are 12
    > different ones in there.
    >
    > hope this helps,

    Bad news - the patches all applied to 2.6.26-rc2 / current HEAD but the
    problem remained.

    The trace at the end seems slightly different though (alas I have to
    transcribe):

    BUG: unable to handle kernel paging request at e725ffac
    IP: [<c025fdb6>] scsi_bus_uevent+0x1/0x17
    *pde = 27845163 *pte = 2725f160
    Oops: 0000 [#1] DEBUG_PAGEALLOC

    [...]

    dev_uevent
    dev_uevent
    kobject_uevent_env
    mutex_unlock
    kobject_uevent
    device_add
    mutex_unlock
    scsi_sys_add_sdev
    scsi_probe_and_add_lun
    mark_held_locks
    __scsi_add_device
    ata_scsi_scan_host
    ata_host_register
    ata_pci_sff_activate_host
    ata_sff_interrupt
    ata_pci_sff_init_one
    pci_device_probe
    driver_probe_device
    __driver_attach
    bus_for_each_dev
    driver_attach
    __driver_attach
    bus_add_driver
    driver_register
    __pci_register_driver
    kernel_init
    via_init
    kernel_init
    kernel_init
    kernel_init
    krenel_thread_helper

    --
    Sitsofe | http://sucs.org/~sits/



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