Started by crubille, February 04, 2013, 10:55:17 pm
Quote from: JohnS on February 24, 2013, 10:39:22 pmjwischka's kernels are not for the microJohn
Quote from: JohnS on February 24, 2013, 11:11:58 pmActually they do NOT boot without issues on a micro.E.g. you may only get about 38% the CPU speed you would hope for. And USB is wrong. Etc.I think it'll be a wrong version of U-boot, too.John
Quote from: JohnS on February 25, 2013, 12:39:53 amAFAIK he doesn't work for or represent Olimex.
Quote from: Tele on February 24, 2013, 11:47:36 amDifferences in rootfsI use buildroot to build kernel and a simple rootfs with busybox and qt. It works like charm. If you wanna make a try I can send the .config files.Differences in toolchain and glibc/eglibc/uclibcI use a selfmade crosstoolNG toolchain. Very stable and knows good switches, like:-march=armv7-a -mtune=cortex-a8 -mthumb -mfpu=neon or vfp3 -mfloat-abi=hard or soft or softfpI use glibc 2.13 with it, oldie but goldie.
Quote from: uMinded on February 24, 2013, 06:11:20 am Code Select Expand[ 1.070000] registered taskstats version 1[ 1.080000] Unable to handle kernel NULL pointer dereference at virtual address 00000018Have you guys seen this behaviour?
[ 1.070000] registered taskstats version 1[ 1.080000] Unable to handle kernel NULL pointer dereference at virtual address 00000018
Quote from: ehj666 on February 25, 2013, 06:51:39 pmThe difference is, I do not recall getting to a reboot loop when it happened.
Quote from: crubille on February 25, 2013, 10:48:46 pmHello, if there is anybody to test a running xenomai on A13 get ...
Quote from: crubille on February 25, 2013, 10:48:46 pmHello, if there is anybody to test a running xenomai on A13 get http://www.crubille.lautre.net/xenomai_sun5i/ipipe-linuxsun5i-3.4.24.beta.patchand apply the standart xenomai procedure.
cd kernelgit clone git://github.com/linux-sunxi/linux-sunxi.git -b sunxi-3.4wget http://download.gna.org/xenomai/stable/LATEST_IS-v188.8.131.52.tar.bz2# Extract above file herewget http://www.crubille.lautre.net/xenomai_sun5i/ipipe-linuxsun5i-3.4.24.beta.patchxenomai-184.108.40.206/scripts/prepare-kernel.sh --arch=arm \--adeos=ipipe-linuxsun51-3.4.24.beta.patch --linux=linux-sunxi/cd linux-sunximake ARCH=arm a13_defconfigmake ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- uImagemake ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- INSTALL_MOD_PATH=out modulesmake ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- INSTALL_MOD_PATH=out modules_install
Quote from: crubille on February 26, 2013, 09:58:46 amHello ehj666The default config do not include the xenomai option and i am not sure it is well set for the olinuxino board.In your linux main directory, recopy the default config:boot on the standard olimex kernel for A13get the .config file from herezcat /proc/config.gz > .configmake ARCH=arm menuconfigcheck xenomai is on in the real time part,check anything like cpu-freq-scalling or agressive power management are disabled