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

From: Dave Jones
Date: Wed Oct 17 2012 - 14:14:32 EST

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..


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