Re: Suspicious error for CMA stress test

From: Vlastimil Babka
Date: Wed Mar 23 2016 - 04:26:55 EST


On 03/23/2016 05:44 AM, Joonsoo Kim wrote:

Fixes: 3c605096d315 ("mm/page_alloc: restrict max order of merging on isolated pageblock")
Link: https://lkml.org/lkml/2016/3/2/280
Reported-by: Hanjun Guo <guohanjun@xxxxxxxxxx>
Debugged-by: Laura Abbott <labbott@xxxxxxxxxx>
Debugged-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 3.18+
---
mm/page_alloc.c | 46 +++++++++++++++++++++++++++++++++-------------
1 file changed, 33 insertions(+), 13 deletions(-)

Acked-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>

Thanks for taking care of this issue!.

Thanks for the review. But I'm now not sure whether we push this to mainline+stable now, and later replace with Lucas' approach, or whether that approach would be also suitable and non-disruptive enough for stable?