On Thu, Sep 11, 2014 at 12:16 AM, Kevin Hilman <khilman@xxxxxxxxxx> wrote: > Tyler Baker <tyler.baker@xxxxxxxxxx> writes: > >> Exynos5420-based Arndale octa boards have recently started failing boot >> tests due to imprecise external aborts. This only appears to happen >> when using exynos_defconfig and boots fine with multi_v7_defconfig. The >> issue seems to be intermittent, so is not reliably reproducable and >> difficult to bisect. Here are a few boot logs from recent >> mainline/linux-next kernels that are failing: > > FYI, I'm seeing the same periodic aborts. For example, here's my boot > of next-20140910: > http://images.armcloud.us/kernel-ci/next/next-20140910/arm-exynos_defconfig/boot-exynos5420-arndale-octa.html > > However, my userspace is much simpler and doesn't seem to cause a panic, > so my boot tests report passing. (I should fixup my scripts so these > imprecise aborts are reported as a FAIL.) > > I'm glad you pointed out that it happens only with exynos_defconfig and > not multi_v7_defconfig because I noticed that too. I haven't had the > time to track it any further than that, so maybe the exynos folks can > help track it down from here. > > Thanks for reporting this, > > Kevin Hi Tyler, Kevin, >From the bootlog you have shared, [ 1.060016] CPU4: failed to come online [ 2.070031] CPU5: failed to come online [ 3.080049] CPU6: failed to come online [ 4.090066] CPU7: failed to come online [ 4.090099] Brought up 4 CPUs [ 4.090109] SMP: Total of 4 processors activated. [ 4.090119] CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x13) [ 4.090128] CPU: This may indicate a broken bootloader or firmware. Would it be possible to set max cpus to 1, disable switcher and try again. I don't have a arndale octa board but I have tested mainline kernel with smdk5420 board. It boots all eight CPUs, switcher works fine and there are no imprecise aborts seen. Thanks, Thomas. > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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