linux-kernel - Re: [PATCH] mwifiex: add __GFP

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Message-ID: <20160329053103.GH32709@us.netrek.org>
Date:	Tue, 29 Mar 2016 16:31:03 +1100
From:	James Cameron <quozl@...top.org>
To:	Wei-Ning Huang <wnhuang@...omium.org>
Cc:	linux-wireless@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Amitkumar Karwar <akarwar@...vell.com>,
	Nishant Sarmukadam <nishants@...vell.com>, snanda@...gle.com,
	kvalo@...eaurora.org, netdev@...r.kernel.org
Subject: Re: [PATCH] mwifiex: add __GFP_REPEAT to skb allocation call

On Tue, Mar 29, 2016 at 12:47:20PM +0800, Wei-Ning Huang wrote:
> "single skb allocation failure" happens when system is under heavy
> memory pressure.  Add __GFP_REPEAT to skb allocation call so kernel
> attempts to reclaim pages and retry the allocation.

Oh, that's interesting, we're back to this symptom again.

Nice to see this fix.

Heavy memory pressure on 3.5 caused dev_alloc_skb failure in this
driver.  Tracked at OLPC as #12694.

-- 
James Cameron
http://quozl.netrek.org/