linux-kernel - Re: page allocator bug in 3.16?

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Message-ID: <5424AAD0.9010708@hurleysoftware.com>
Date:	Thu, 25 Sep 2014 19:52:48 -0400
From:	Peter Hurley <peter@...leysoftware.com>
To:	Chuck Ebbert <cebbert.lkml@...il.com>
CC:	Mel Gorman <mgorman@...e.de>, Shaohua Li <shli@...nel.org>,
	Rik van Riel <riel@...hat.com>,
	Maarten Lankhorst <maarten.lankhorst@...onical.com>,
	Thomas Hellstrom <thellstrom@...are.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux kernel <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, Ingo Molnar <mingo@...nel.org>,
	Hugh Dickens <hughd@...gle.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
Subject: Re: page allocator bug in 3.16?

On 09/25/2014 03:35 PM, Chuck Ebbert wrote:
> There are six ttm patches queued for 3.16.4:
> 
> drm-ttm-choose-a-pool-to-shrink-correctly-in-ttm_dma_pool_shrink_scan.patch
> drm-ttm-fix-handling-of-ttm_pl_flag_topdown-v2.patch
> drm-ttm-fix-possible-division-by-0-in-ttm_dma_pool_shrink_scan.patch
> drm-ttm-fix-possible-stack-overflow-by-recursive-shrinker-calls.patch
> drm-ttm-pass-gfp-flags-in-order-to-avoid-deadlock.patch
> drm-ttm-use-mutex_trylock-to-avoid-deadlock-inside-shrinker-functions.patch

Thanks for info, Chuck.

Unfortunately, none of these fix TTM dma allocation doing CMA dma allocation,
which is the root problem.

Regards,
Peter Hurley
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