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    SubjectRe: 2.6.0-test6-mm1
    Dave Jones <davej@redhat.com> wrote:
    >
    > On Sun, Sep 28, 2003 at 07:10:38PM -0700, Andrew Morton wrote:
    >
    > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test6/2.6.0-test6-mm1
    >
    > Debug: sleeping function called from invalid context at include/linux/rwsem.h:43
    > in_atomic():0, irqs_disabled():1
    > Call Trace:
    > [<02123550>] do_page_fault+0x0/0x588
    > [<021291be>] __might_sleep+0x9e/0xc0
    > [<021237e0>] do_page_fault+0x290/0x588
    > [<02135a85>] update_process_times+0x45/0x50
    > [<02113ab8>] timer_interrupt+0x188/0x1e0
    > [<0210ea0b>] do_IRQ+0x18b/0x230
    > [<02123550>] do_page_fault+0x0/0x588
    >

    You have the 4G split enabled, and took a pagefault in the timer interrupt
    handler. Conceivably that fault hit vmalloc space, but I don't see how.

    Even if it did, it shouldn't have got through to taking mmap_sem.

    I'm stumped. Maybe Ingo can spot it?

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