Re: [PATCH v2] trace: Set __GFP_NORETRY flag for ring buffer allocatingprocess

From: David Rientjes
Date: Tue Jun 07 2011 - 22:30:54 EST

On Tue, 7 Jun 2011, Vaibhav Nagarnaik wrote:

> The tracing ring buffer is allocated from kernel memory. While
> allocating a large chunk of memory, OOM might happen which destabilizes
> the system. Thus random processes might get killed during the
> allocation.
> This patch adds __GFP_NORETRY flag to the ring buffer allocation calls
> to make it fail more gracefully if the system will not be able to
> complete the allocation request.
> Signed-off-by: Vaibhav Nagarnaik <vnagarnaik@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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