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    SubjectRe: 2.6.18-rc6-mm2
    On Thu, Sep 14, 2006 at 01:11:49PM +0200, Michal Piotrowski wrote:
    > On 12/09/06, Andrew Morton <akpm@osdl.org> wrote:
    > >
    > >ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc6/2.6.18-rc6-mm2/
    > >
    >
    > Kernel 2.6.18-rc6-mm2 - xfs-rename-uio_read.patch
    > Built with gcc 3.4
    > Reading specs from /usr/local/bin/../lib/gcc/i686-pc-linux-gnu/3.4.6/specs
    > Configured with: ./configure --prefix=/usr/local/ --disable-nls
    > --enable-shared --enable-languages=c --program-suffix=-3.4
    > Thread model: posix
    > gcc version 3.4.6
    >
    > ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 17
    > BUG: unable to handle kernel paging request at virtual address 5a5a5aaa
    > usb usb2: configuration #1 chosen from 1 choice
    > hub 2-0:1.0: USB hub found
    > printing eip:
    > c01f596a
    > *pde = 00000000
    > Oops: 0000 [#1]
    > 4K_STACKS PREEMPT SMP
    > last sysfs file:
    > Modules linked in:
    > CPU: 0
    > EIP: 0060:[<c01f596a>] Not tainted VLI
    > EFLAGS: 00010202 (2.6.18-rc6-mm2 #122)
    > EIP is at kref_get+0x7/0x55
    > eax: 5a5a5aaa ebx: 5a5a5aaa ecx: c75cfe54 edx: c75cfe54
    > esi: c033152f edi: c75cfe5e ebp: c755be20 esp: c755be18
    > ds: 007b es: 007b ss: 0068
    > Process usb-probe-<NULL (pid: 291, ti=c755b000 task=c759aab0
    > task.ti=c755b000)

    You have the USB multi-threaded device probing config option
    (CONFIG_USB_MULTITHREAD_PROBE) enabled, right?

    Does disabling it fix this problem?

    That option has been reworked by Alan Stern, and I need to intregate it
    into my tree soon. This is the first report of a problem with the
    current stuff, I wonder why.

    Can you send the output of /sys/proc/bus/usb/devices with the same
    devices plugged in on a different, no oopsing kernel?

    thanks,

    greg k-h
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