Re: 2.6.0-test6-mm1

[Andrew Morton]

Dave Jones <davej@xxxxxxxxxx> 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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