From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B41E8C46470 for ; Mon, 27 May 2019 06:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 82C0021726 for ; Mon, 27 May 2019 06:51:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="CuNTeeKs"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="CuNTeeKs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726262AbfE0Gvz (ORCPT ); Mon, 27 May 2019 02:51:55 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:48886 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725940AbfE0Gvz (ORCPT ); Mon, 27 May 2019 02:51:55 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 967096087B; Mon, 27 May 2019 06:51:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1558939914; bh=s0wLD8B/zseIR5f2YHD59ExN/luEudxhv79WY6CFMbg=; h=From:To:Subject:Date:From; b=CuNTeeKsA4INvRY3bhcdXQ+41Imm+8uQftmtIt03SRl+GAsx8adSZ7MsYKHJa0iKS 6cmb4E+Gq7zzoB0MAPMf2UcvP7tdobg0jioYNNRvrVbnuKHHIMNJjhK4/KoA6t+uVM pHg8vJsQ3+XKL0GWwW9qy1ddX7dcAKVQ7kq335e0= Received: from [10.206.25.51] (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: aneela@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5CB326019D; Mon, 27 May 2019 06:51:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1558939914; bh=s0wLD8B/zseIR5f2YHD59ExN/luEudxhv79WY6CFMbg=; h=From:To:Subject:Date:From; b=CuNTeeKsA4INvRY3bhcdXQ+41Imm+8uQftmtIt03SRl+GAsx8adSZ7MsYKHJa0iKS 6cmb4E+Gq7zzoB0MAPMf2UcvP7tdobg0jioYNNRvrVbnuKHHIMNJjhK4/KoA6t+uVM pHg8vJsQ3+XKL0GWwW9qy1ddX7dcAKVQ7kq335e0= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5CB326019D Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=aneela@codeaurora.org From: Arun Kumar Neelakantam To: netdev@vger.kernel.org, Bjorn Andersson , Chris Lew Subject: netdev_alloc_skb is failing for 16k length Message-ID: <6891cd8b-a3be-91f5-39c4-7a7e7d498921@codeaurora.org> Date: Mon, 27 May 2019 12:21:51 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi team, we are using "skb = netdev_alloc_skb(NULL, len);" which is getting failed sometimes for len = 16k. I suspect mostly system memory got fragmented and hence atomic memory allocation for 16k is failing, can you please suggest best way to handle this failure case. Thanks Arun N