Re: [patch for-3.7] mm, mempolicy: fix printing stack contents innuma_maps

[Dave Jones]

On Tue, Oct 16, 2012 at 10:24:32PM -0700, David Rientjes wrote:
 > On Wed, 17 Oct 2012, Dave Jones wrote:
 > 
 > > BUG: sleeping function called from invalid context at kernel/mutex.c:269
 > 
 > Hmm, looks like we need to change the refcount semantics entirely.  We'll 
 > need to make get_vma_policy() always take a reference and then drop it 
 > accordingly.  This work sif get_vma_policy() can grab a reference while 
 > holding task_lock() for the task policy fallback case.
 > 
 > Comments on this approach?

Seems to be surviving my testing at least..

	Dave

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