From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751614AbdJWMQn (ORCPT ); Mon, 23 Oct 2017 08:16:43 -0400 Received: from mail-it0-f45.google.com ([209.85.214.45]:52058 "EHLO mail-it0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751357AbdJWMQl (ORCPT ); Mon, 23 Oct 2017 08:16:41 -0400 X-Google-Smtp-Source: ABhQp+TPV90J5qCQ+riqEWHxUignLqJQgVzHhijQA8MRU9OOpJFgMBt/KmOpe3Rp+FEf1FDy1MvznWs7kYNfHNbYxs4= MIME-Version: 1.0 In-Reply-To: <20171023093109.GI32228@amd> References: <20170905194739.GA31241@amd> <20171001093704.GA12626@amd> <20171001102647.GA23908@amd> <201710011957.ICF15708.OOLOHFSQMFFVJt@I-love.SAKURA.ne.jp> <72c93a69-610f-027e-c028-379b97b6f388@intel.com> <20171002084131.GA24414@amd> <20171002130353.GA25433@amd> <184b3552-851c-7015-dd80-76f6eebc33cc@intel.com> <20171023093109.GI32228@amd> From: Linus Walleij Date: Mon, 23 Oct 2017 14:16:40 +0200 Message-ID: Subject: Re: 4.14-rc2 on thinkpad x220: out of memory when inserting mmc card To: Pavel Machek Cc: Adrian Hunter , Tetsuo Handa , "linux-kernel@vger.kernel.org" , "linux-mmc@vger.kernel.org" , linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 23, 2017 at 11:31 AM, Pavel Machek wrote: >> > Thinkpad X220... how do I tell if I was using them? I believe so, >> > because I uncovered bug in them before. >> >> You are certainly using bounce buffers. What does lspci -knn show? > > Here is the output: > 0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller [1180:e823] (rev 07) > Subsystem: Lenovo Device [17aa:21da] > Kernel driver in use: sdhci-pci So that is a Ricoh driver, one of the few that was supposed to benefit from bounce buffers. Except that if you actually turned it on: > [10994.302196] kworker/2:1: page allocation failure: order:4, so it doesn't have enough memory to use these bounce buffers anyway. I'm now feel it was the right thing to delete them. I assume the problem doesn't appear in later -rc:s am I right? Yours, Linus Walleij From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: Re: 4.14-rc2 on thinkpad x220: out of memory when inserting mmc card Date: Mon, 23 Oct 2017 14:16:40 +0200 Message-ID: References: <20170905194739.GA31241@amd> <20171001093704.GA12626@amd> <20171001102647.GA23908@amd> <201710011957.ICF15708.OOLOHFSQMFFVJt@I-love.SAKURA.ne.jp> <72c93a69-610f-027e-c028-379b97b6f388@intel.com> <20171002084131.GA24414@amd> <20171002130353.GA25433@amd> <184b3552-851c-7015-dd80-76f6eebc33cc@intel.com> <20171023093109.GI32228@amd> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20171023093109.GI32228@amd> Sender: owner-linux-mm@kvack.org To: Pavel Machek Cc: Adrian Hunter , Tetsuo Handa , "linux-kernel@vger.kernel.org" , "linux-mmc@vger.kernel.org" , linux-mm@kvack.org List-Id: linux-mmc@vger.kernel.org On Mon, Oct 23, 2017 at 11:31 AM, Pavel Machek wrote: >> > Thinkpad X220... how do I tell if I was using them? I believe so, >> > because I uncovered bug in them before. >> >> You are certainly using bounce buffers. What does lspci -knn show? > > Here is the output: > 0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller [1180:e823] (rev 07) > Subsystem: Lenovo Device [17aa:21da] > Kernel driver in use: sdhci-pci So that is a Ricoh driver, one of the few that was supposed to benefit from bounce buffers. Except that if you actually turned it on: > [10994.302196] kworker/2:1: page allocation failure: order:4, so it doesn't have enough memory to use these bounce buffers anyway. I'm now feel it was the right thing to delete them. I assume the problem doesn't appear in later -rc:s am I right? Yours, Linus Walleij -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org