On Mon, Nov 24, 2014 at 4:25 PM, Olof Johansson <[email protected]> wrote: > On Mon, Nov 24, 2014 at 11:51 AM, Kevin Hilman <[email protected]> wrote: >> Kukjin, >> >> On Mon, Nov 10, 2014 at 11:35 AM, Kevin Hilman <[email protected]> wrote: >>> Kukjin Kim <[email protected]> writes: >>> >>>> Kevin Hilman wrote: >>>>> >>>>> From: Kevin Hilman <[email protected]> >>>>> >>>>> The option CONFIG_EXYNOS5420_MCPM is causing imprecise external aborts >>>>> during boot testing, causing various userspace startup failures. >>>>> >>>>> Disable until it has gotten more testing. >>>>> >>>>> Cc: Kukjin Kim <[email protected]>, >>>>> Cc: Javier Martinez Canillas <[email protected]>, >>>>> Cc: Sachin Kamat <[email protected]>, >>>>> Cc: Doug Anderson <[email protected]>, >>>>> Cc: Bartlomiej Zolnierkiewicz <[email protected]>, >>>>> Cc: Krzysztof Kozlowski <[email protected]>, >>>>> Cc: Tushar Behera <[email protected]>, >>>>> Cc: [email protected] # v3.17+ >>>>> Signed-off-by: Kevin Hilman <[email protected]> >>>>> --- >>>>> This has been reported by a few people[1], but not investigated or fixed, >>>>> so it's >>>>> time to disable this feature until it can be fixed. >>>>> >>>> Hi Kevin, >>>> >>>> Yeah I agree with your opinion. >>>> >>>> But as you can see my tree, I've queued regarding mcpm patches for 3.19 >>>> will >>>> be shown in -next in this weekend. >>> >>> Which of the recently queued patches are expected to address the >>> imprecise abort issue? I'd be happy to test them out. >> >> Exynos5 MCPM is still broken in linux-next and still causing an imprecise >> abort. >> >> What is the status of $SUBJECT patch? >> >>>> Anyway let me apply this into -fixes and >>>> then let's enable after test its functionality in -next in a couple of >>>> days. >>> >>> Yes, I think this needs to be applied until these aborts are understood >>> and fixed. >> >> Is anyone at Samsung actually looking into these MCPM issues? > > Hi Kevin, > > What hardware are you having problems with? 5420 or 5422/5800?
Yes. :) exynos5420-arndale-octa: http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc6/arm-exynos_defconfig/boot-exynos5420-arndale-octa.html exynos5422-odroid-xu3: http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc6/arm-exynos_defconfig/boot-exynos5422-odroid-xu3.html My boot tests seem to pass fine because I have such a minimal userspace, but Tyler Baker reported that with a "real" userspace, he can't boot to a shell: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-September/286203.html Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
