From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: RE: linux-next-20100201 - OMAP2+ defconfig broken with CONFIG_DEBUG_LL Date: Tue, 1 Feb 2011 14:56:13 +0530 Message-ID: <7f99b6fa52967d67bf45d4e8aa7db1e8@mail.gmail.com> References: <4af2a35f6d08ddcb33eb86aa3c784fb5@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4af2a35f6d08ddcb33eb86aa3c784fb5@mail.gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Anand Gadiyar , linux-arm-kernel@lists.infradead.org, linux-next@vger.kernel.org, Russell King - ARM Linux List-Id: linux-next.vger.kernel.org > -----Original Message----- > From: linux-arm-kernel-bounces@lists.infradead.org [mailto:linux- > arm-kernel-bounces@lists.infradead.org] On Behalf Of Anand Gadiyar > Sent: Tuesday, February 01, 2011 2:54 PM > To: linux-arm-kernel@lists.infradead.org; linux- > next@vger.kernel.org; Russell King - ARM Linux > Subject: RE: linux-next-20100201 - OMAP2+ defconfig broken with > CONFIG_DEBUG_LL > > Gadiyar, Anand wrote: > > Hi all, > > > > I tried to build linux-next as of 20100201 with > > omap2plus_defconfig. In addition > > I turned on CONFIG_DEBUG_LL and hit the following error. > > > > AS arch/arm/kernel/debug.o > > arch/arm/kernel/debug.S: Assembler messages: > > arch/arm/kernel/debug.S:174: Error: garbage following instruction > -- > > `ldreq r1,= > > __virt_to_phys(omap_uart_phys)' > > arch/arm/kernel/debug.S:174: Error: garbage following instruction > -- > > `ldrne r1,= > > __phys_to_virt((0x80000000+0x3ffc))' > > arch/arm/kernel/debug.S:174: Error: garbage following instruction > -- > > `ldreq r2,= > > __virt_to_phys(omap_uart_phys)' > > arch/arm/kernel/debug.S:174: Error: garbage following instruction > -- > > `ldreq r2,= > > __virt_to_phys(omap_uart_phys)' > > arch/arm/kernel/debug.S:178: Error: garbage following instruction > -- > > `ldreq r2,= > > __virt_to_phys(omap_uart_lsr)' > > arch/arm/kernel/debug.S:190: Error: garbage following instruction > -- > > `ldreq r1,= > > __virt_to_phys(omap_uart_phys)' > > arch/arm/kernel/debug.S:190: Error: garbage following instruction > -- > > `ldrne r1,= > > __phys_to_virt((0x80000000+0x3ffc))' > > arch/arm/kernel/debug.S:190: Error: garbage following instruction > -- > > `ldreq r2,= > > __virt_to_phys(omap_uart_phys)' > > arch/arm/kernel/debug.S:190: Error: garbage following instruction > -- > > `ldreq r2,= > > __virt_to_phys(omap_uart_phys)' > > make[1]: *** [arch/arm/kernel/debug.o] Error 1 > > make: *** [arch/arm/kernel] Error 2 > > > > Will try and bisect this down later. Just reporting for now. > > > > Hi Russell, > > This appears to be introduced after this commit from you: > > 8397c0703b5aa99fdb7c4e5177c4e2fc3b97c835 is the first bad commit > commit 8397c0703b5aa99fdb7c4e5177c4e2fc3b97c835 > Author: Russell King > Date: Tue Jan 4 19:09:43 2011 +0000 > > ARM: P2V: introduce phys_to_virt/virt_to_phys runtime patching > > This idea came from Nicolas, Eric Miao produced an initial > version, > which was then rewritten into this. > > The build failure seems to be omap-specific; I don't see this when > I build a mx51_defconfig for instance, but I do get a similar error > when building for omap1_defconfig. > > I'll try and dig deeper. > This is known and Russell has already pointed this out even before patch for dynamic p2v were merged. OMAP LL debug code needs to be fixed. Regards, Santosh