Return-path: Received: from zimbra.real-time.com ([63.170.91.9]:34231 "EHLO zimbra.real-time.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750975AbcC2FiJ (ORCPT ); Tue, 29 Mar 2016 01:38:09 -0400 Date: Tue, 29 Mar 2016 16:31:03 +1100 From: James Cameron To: Wei-Ning Huang Cc: linux-wireless@vger.kernel.org, LKML , Amitkumar Karwar , Nishant Sarmukadam , snanda@google.com, kvalo@codeaurora.org, netdev@vger.kernel.org Subject: Re: [PATCH] mwifiex: add __GFP_REPEAT to skb allocation call Message-ID: <20160329053103.GH32709@us.netrek.org> (sfid-20160329_073829_250481_879626C0) References: <1459226840-36287-1-git-send-email-wnhuang@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1459226840-36287-1-git-send-email-wnhuang@chromium.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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/