From patchwork Mon Apr 11 08:27:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 8798601 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id BBC659F54F for ; Mon, 11 Apr 2016 08:41:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EBB4F20254 for ; Mon, 11 Apr 2016 08:41:54 +0000 (UTC) Received: from bombadil.infradead.org (unknown [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0EE5720220 for ; Mon, 11 Apr 2016 08:41:54 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1apXGP-0007Kh-7N; Mon, 11 Apr 2016 08:32:05 +0000 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1apXCX-0001z4-2i for linux-arm-kernel@lists.infradead.org; Mon, 11 Apr 2016 08:28:44 +0000 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 7764D82411; Mon, 11 Apr 2016 10:27:43 +0200 (CEST) Date: Mon, 11 Apr 2016 10:27:42 +0200 From: Pavel Machek To: Tony Lindgren Subject: 4.6-rc2: regression with omap video and lockdep (was Re: 4.4, 4.6: camera and unlock buttons produce tons of interrupts (was Re: N900 sleep mode)) Message-ID: <20160411082742.GA1993@amd> References: <20160404213056.GA25912@amd> <20160404220748.GA16484@atomide.com> <20160405142250.GA6429@amd> <20160405152916.GE16484@atomide.com> <20160405205137.GA10196@amd> <20160407174019.GM16484@atomide.com> <20160407194828.GA13338@amd> <20160407213229.GO16484@atomide.com> <20160407230150.GA16552@amd> <20160407234134.GQ16484@atomide.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20160407234134.GQ16484@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160411_012806_080688_F36D789D X-CRM114-Status: GOOD ( 17.61 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ivo.g.dimitrov.75@gmail.com, khilman@kernel.org, aaro.koskinen@iki.fi, kernel list , sre@kernel.org, pali.rohar@gmail.com, linux-omap@vger.kernel.org, patrikbachan@gmail.com, linux-arm-kernel , serge@hallyn.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RDNS_NONE,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi! > > > Nothing idling for me with your .config.. And it seems slower to boot > > > compared to omap2plus_defconfig? Maybe because of the extra GPIO > > > interrupts? > > > > Extra interrupts only happen when enable_off_mode is 1, so that should > > not be an issue during boot. > > OK maybe it's just the extra driver probe time then. Heh. I had earlyprintk enabled. That should explain it. > Well I've been just using omap2plus_defconfig with: > > # modprobe tsc2005 > # modprobe gpio_backlight > # modprobe panel_sony_acx565akm > # modprobe omapfb > > # echo 255 > /sys/class/backlight/acx565akm/brightness > > And then the following to blank for idle: > > # echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank > > But in the world of eternal regressions, I'm not seeing anything > on the framebuffer with v4.6-rc2 :( No idea what broke it or when > as my n900 is in the rack. Can you try this patch to your config -- disabling lockdep? It should fix the video for you. (And if you have the serial console... do you see any warnings from lockdep?) Thanks, Pavel --- config.def 2016-04-08 21:50:04.519622137 +0200 +++ .config 2016-04-11 10:22:52.988193318 +0200 @@ -4183,15 +4183,12 @@ CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set -CONFIG_DEBUG_LOCK_ALLOC=y -CONFIG_PROVE_LOCKING=y -CONFIG_LOCKDEP=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set # CONFIG_LOCK_STAT is not set -# CONFIG_DEBUG_LOCKDEP is not set # CONFIG_DEBUG_ATOMIC_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_LOCK_TORTURE_TEST is not set -CONFIG_TRACE_IRQFLAGS=y CONFIG_STACKTRACE=y # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_BUGVERBOSE is not set @@ -4204,8 +4201,7 @@ # # RCU Debugging # -CONFIG_PROVE_RCU=y -# CONFIG_PROVE_RCU_REPEATEDLY is not set +# CONFIG_PROVE_RCU is not set # CONFIG_SPARSE_RCU_POINTER is not set # CONFIG_TORTURE_TEST is not set # CONFIG_RCU_TORTURE_TEST is not set