From: Peter Hurley <peter@hurleysoftware.com>
To: Minchan Kim <minchan@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Nazarewicz <mina86@mina86.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: alloc_contig_range: demote pages busy message from warn to info
Date: Tue, 04 Nov 2014 07:22:25 -0500 [thread overview]
Message-ID: <5458C501.3040505@hurleysoftware.com> (raw)
In-Reply-To: <20141104054307.GA23102@bbox>
On 11/04/2014 12:43 AM, Minchan Kim wrote:
> Hello,
>
> On Mon, Nov 03, 2014 at 05:57:53PM +0100, Michal Nazarewicz wrote:
>> Having test_pages_isolated failure message as a warning confuses
>> users into thinking that it is more serious than it really is. In
>> reality, if called via CMA, allocation will be retried so a single
>> test_pages_isolated failure does not prevent allocation from
>> succeeding.
>>
>> Demote the warning message to an info message and reformat it such
>> that the text a??faileda?? does not appear and instead a less worrying
>> a??PFNS busya?? is used.
>
> What do you expect from this message? Please describe it so that we can
> review below message helps your goal.
I expect this message to not show up in logs unless there is a real problem.
This message is trivially reproducible on a 10GB x86 machine on 3.16.y
kernels configured with CONFIG_DMA_CMA.
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next prev parent reply other threads:[~2014-11-04 12:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-26 21:09 CMA: test_pages_isolated failures in alloc_contig_range Laurent Pinchart
2014-10-27 20:38 ` Laura Abbott
2014-10-28 15:12 ` Laurent Pinchart
2014-10-28 12:38 ` Michal Nazarewicz
2014-10-28 13:48 ` Peter Hurley
2014-10-28 16:57 ` Michal Nazarewicz
2014-11-04 3:38 ` Peter Hurley
2014-10-28 18:59 ` Laurent Pinchart
2014-11-03 16:57 ` [PATCH] mm: alloc_contig_range: demote pages busy message from warn to info Michal Nazarewicz
2014-11-04 5:43 ` Minchan Kim
2014-11-04 12:22 ` Peter Hurley [this message]
2014-11-04 13:35 ` Michal Nazarewicz
2014-11-04 14:19 ` Peter Hurley
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