Dave Jones [off-list ref] 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?

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a>