On Tue, Jan 27, 2015 at 2:27 PM, Nikolay Dimitrov <picmas...@mail.bg> wrote: > Just to share my progress so far. My board passed 500+ iterations of > DDR stress testing with the FSL tool (this bloody thing took 2 days to > complete!). Tried the U-Boot integrated memory tests (both quick and > alt), and they didn't show any issues. So I can say that at least the > hardware and DDR settings seems to be OK. > > In addition, I tried to disable SMP, L2 & L1 cache support in my kernel > and see what happens, but I can still observe the corruption. I found > that there's an embedded memory tester in the kernel, but only for x86 > (CONFIG_MEMTEST), not useful for ARM. > > I started to doubt that my 2 cross-build machines (x64 Debian stable) > are maybe producing broken kernels, so did a test cross-build on Ubuntu > 14.04, and even did native build on riotboard, but the results are the > same - issue can be still observed. > > During boot and operation I sometimes see kernel oopses (I remember > most of them related with execve and filesystem reads), sometimes apps > segfault. Kernel and/or toolchain issues are also possible but I > checked that Daisy has the gcc-4.8+ PR58854 patch, so not very likely, > especially if other Yocto users don't report such issues. > > Possible step forward is to try to build original FSL 3.10.17 version > without my local patches, and maybe even build a minimal 3.18+ mainline > kernel to see how it behaves in the same test case. Someone can even > joke that it's time to leave the dusty old Daisy and go forward with > Dizzy and 3.10.53.
I think Dizzy is very solid. We have been using this with several customers and been very satisfied. -- Otavio Salvador O.S. Systems http://www.ossystems.com.br http://code.ossystems.com.br Mobile: +55 (53) 9981-7854 Mobile: +1 (347) 903-9750 -- _______________________________________________ meta-freescale mailing list meta-freescale@yoctoproject.org https://lists.yoctoproject.org/listinfo/meta-freescale