From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751450AbdARAoM (ORCPT ); Tue, 17 Jan 2017 19:44:12 -0500 Received: from mx2.suse.de ([195.135.220.15]:41825 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751375AbdARAoK (ORCPT ); Tue, 17 Jan 2017 19:44:10 -0500 Subject: Re: [PATCH v4] ARM64: dts: meson-gx: Add reserved memory zone and usable memory range To: Neil Armstrong References: <1484129414-23325-1-git-send-email-narmstrong@baylibre.com> <7fcb8d94-840a-de2c-f43b-9123ccc65514@baylibre.com> <04113569-e342-77ff-f79a-2c9c4dc4c602@suse.de> Cc: Kevin Hilman , "devicetree@vger.kernel.org" , xypron.glpk@gmx.de, "linux-kernel@vger.kernel.org" , Carlo Caione , Olof Johansson , linux-amlogic@lists.infradead.org, "linux-arm-kernel@lists.infradead.org" From: =?UTF-8?Q?Andreas_F=c3=a4rber?= Organization: SUSE Linux GmbH Message-ID: <6bba535f-42bc-3e4b-129b-adc39152cfeb@suse.de> Date: Wed, 18 Jan 2017 01:27:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <04113569-e342-77ff-f79a-2c9c4dc4c602@suse.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 18.01.2017 um 01:00 schrieb Andreas Färber: > Am 17.01.2017 um 09:21 schrieb Neil Armstrong: >> The stress-ng package provides this "stress" command and is used to force the kernel to map more memory >> zones, but I also got the issue while running a fully fledged Desktop Environment thanks to the >> recently merged DRM driver. >> You may not be able to trigger the issue since it seems Amlogic reduces this reserved size on GXL/GXM : >> https://github.com/khadas/linux/commit/698df2c6cfbb0d1a9359743208e83517b31da6ce >> But it should be confirmed. > > Confirming no issues on three runs on meson-gxm-rbox-pro: > > boxer:~ # stress-ng --vm 4 --vm-bytes 128M --timeout 10s & > [1] 2528 > boxer:~ # stress-ng: info: [2528] dispatching hogs: 4 vm > stress-ng: info: [2528] cache allocate: default cache size: 256K > stress-ng: info: [2528] successful run completed in 10.07s > > [1]+ Done stress-ng --vm 4 --vm-bytes 128M --timeout 10s > boxer:~ # stress-ng --vm 4 --vm-bytes 128M --timeout 10s > stress-ng: info: [2537] dispatching hogs: 4 vm > stress-ng: info: [2537] cache allocate: default cache size: 256K > stress-ng: info: [2537] successful run completed in 10.07s > boxer:~ # stress-ng --vm 4 --vm-bytes 128M --timeout 10s > stress-ng: info: [2546] dispatching hogs: 4 vm > stress-ng: info: [2546] cache allocate: default cache size: 256K > stress-ng: info: [2546] successful run completed in 10.07s > boxer:~ # Similar results on meson-gxbb-vega-s95-telos (except 512K cache size), with both mainline EFI and vendor U-Boot. I notice that I don't have CONFIG_DRM enabled - maybe related? Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg)