From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: 4.10-rc1 on Nokia N900: regression, WARN_ON() omap_l3_smx.c Date: Mon, 2 Jan 2017 10:10:59 -0800 Message-ID: <20170102181058.GF9325@atomide.com> References: <20161229231411.GA6865@amd> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20161229231411.GA6865@amd> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Pavel Machek Cc: ivo.g.dimitrov.75@gmail.com, khilman@kernel.org, aaro.koskinen@iki.fi, kernel list , sre@kernel.org, abcloriens@gmail.com, pali.rohar@gmail.com, linux-omap@vger.kernel.org, patrikbachan@gmail.com, linux-arm-kernel , serge@hallyn.com List-Id: linux-omap@vger.kernel.org * Pavel Machek [161229 15:14]: > Hi! > > I forgot I had v4.10-rc1 running, and now I got warning on all the > consoles (hand-copied). > > > Unhandled fault: external abort on non-linefetch (0x1028) at > 0xfa0ab060 > ... > Comm: kworker/0:0 Not tainted. > Workqueue: events musb_irq_work > ... > PC is at musb_default_readb(). > ... This means the clocks are not enabled at that point. > WARNING: CPU: 0 ... at drivers/bus/omap_l3_smx.c:166 > omap3_l3_app_irq+0xcc/... > Tainted: GDW. If you comment out postcore_initcall_sync(omap3_l3_init); in drivers/bus/omap_l3_smx.c you'll see the proper stack trace instead of the l3 interrupt trace. The system will hang at that point most likely. > I do have patches to allow nfsroot over usb. But they worked ok in > v4.9... Does anyone see it, too? Hmm not much has changed since v4.9. Are you sure you had v4.9 or some earlier v4.9-rc version? Regards, Tony