From mboxrd@z Thu Jan 1 00:00:00 1970 From: m-karicheri2@ti.com (Murali Karicheri) Date: Fri, 19 Dec 2014 18:49:22 -0500 Subject: kernel.org - master not booting on keystone (ARM v7 Cortex A15 SoC) EVMs In-Reply-To: References: <549490D6.3090804@ti.com> <20141219211816.GH10857@pengutronix.de> <54949FEE.8070808@ti.com> Message-ID: <5494B982.5050100@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 12/19/2014 06:26 PM, Nishanth Menon wrote: > On Fri, Dec 19, 2014 at 4:00 PM, Murali Karicheri wrote: >> On 12/19/2014 04:18 PM, Uwe Kleine-K?nig wrote: >>> >>> Hello, >>> >>> On Fri, Dec 19, 2014 at 03:55:50PM -0500, Murali Karicheri wrote: >>>> >>>> I have pulled the latest master from >>>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and >>>> tried booting on keystone k2hk and k2e EVM. The boot hangs with >>>> following log. Has anyone seen this? Keystone is an ARM v7 cortex >>>> A15 SMP platform. I am assuming master branch is broken for ARM v7 >>>> and someone is working to address this. v3.18 booted up fine on my >>>> EVM. >>>> >>>> Any idea? >>> >>> You forgot to attach the log?! So no, I don't have any idea. Did you >>> bisect? >>> >>> Best regards >>> Uwe >>> >> Just see below if I enable debug earlyprintk >> >> Uncompressing Linux... done, booting the kernel. >> [ 0.000000] Booting Linux on physical CPU 0x0 >> [ 0.000000] Linux version 3.18.0-11757-gd790be3 (a0868495 at ares-ubuntu) >> (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG >> linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 SMP PREEMPT >> Fri Dec 19 15:53:47 EST 2014 >> [ 0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7), >> cr=30c5387d >> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction >> cache >> [ 0.000000] Machine model: Texas Instruments Keystone 2 Edison EVM >> [ 0.000000] bootconsole [earlycon0] enabled >> [ 0.000000] Switching to high address space at 0x800000000 >> [ 0.000000] WARNING: unsafe modification of in-place page tables - >> tainting kernel >> [ 0.000000] cma: Reserved 16 MiB at 0x000000085f000000 >> [ 0.000000] Forcing write-allocate cache policy for SMP >> [ 0.000000] Memory policy: Data cache writealloc >> >> I am currently doing a git bisect to find the offending commit. >> > Does not look like few other TI A15 platforms are impacted by this. > > branch: master e589c9e Merge branch 'x86-apic-for-linus' of > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > defconfig: omap2plus_defconfig > gcc: arm-linux-gnueabi-gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3 > AM5728 (Dual A15): > 1: BeagleBoard-X15(am57xx-evm): BOOT: PASS: http://slexy.org/raw/s21IM6bagp > DRA72x (Single A15): > 2: dra72x-evm: BOOT: PASS: http://slexy.org/raw/s212Gk53mv > DRA74x (Dual A15): > 3: dra7xx-evm: BOOT: PASS: http://slexy.org/raw/s21C5oTez8 > OMAP5432 (Dual A15): > 4: omap5-evm: BOOT: PASS: http://slexy.org/raw/s20PMK1WGR > TOTAL = 4 boards, Booted Boards = 4, No Boot boards = 0 > > > --- > Regards, > Nishanth Menon Nishanth, Just posted the git bisect result and narrowed it down to one commit which seems to be applicable for non LPAE ARM, but somehow impacted LPAE. -- Murali Karicheri Linux Kernel, Texas Instruments