Re: mainline boot: 64 boots: 62 pass, 2 fail (v3.16-rc1-2-gebe0618)

["Andreas Färber" <afaerber@suse.de>]

Am 23.06.2014 20:32, schrieb Kevin Hilman:
> On Sun, Jun 22, 2014 at 8:56 PM, Tushar Behera <trblinux@gmail.com> wrote:
>> Adding linux-samsung-soc and linux-arm-kernel ML for wider audience.
>>
>> On 06/19/2014 04:12 PM, Tushar Behera wrote:
>>> On 06/19/2014 03:02 PM, Tushar Behera wrote:
>>>> On 06/18/2014 09:22 AM, Kevin Hilman wrote:
>>>>> On Tue, Jun 17, 2014 at 8:26 PM, Tushar Behera <trblinux@gmail.com> wrote:
>>>>>> On 06/17/2014 10:23 PM, Kevin Hilman wrote:
>>>>>>> Sachin,
>>>>>>>
>>>>>>> On Mon, Jun 16, 2014 at 11:16 PM, Kevin's boot bot <khilman@linaro.org> wrote:
>>>>>>>>
>>>>>>>> Tree/Branch: mainline
>>>>>>>> Git describe: v3.16-rc1-2-gebe0618
>>>>>>>> Failed boot tests (console logs at the end)
>>>>>>>> ===========================================
>>>>>>>>      exynos5420-arndale-octa:     FAIL:    arm-exynos_defconfig
>>>>>>>>                 ste-snowball:     FAIL:    arm-u8500_defconfig
>>>>>>>
>>>>>>> FYI... these failures are getting more consistent on my octa board,
>>>>>>> but still not failing every time.
>>>>>>>
>>>>>>> Kevin
>>>>>>>
>>>>>>
>>>>>> Hi Kevin,
>>>>>>
>>>>>> Same here.
>>>>>>
>>>>>> Observation: If you soft-reset the board (through the jumpers) after
>>>>>> getting this problem, the problem keeps repeating. But if you hard-reset
>>>>>> the board (by removing the power cord), the problem doesn't occur during
>>>>>> next iteration.
>>>>>
>>>>> I don't ever use the soft-reset, I only toggle the wall power.  I
>>>>> don't ever actually remove the power cord though, I'm using a
>>>>> USB-controlled relay to toggle the wall power.
>>>>>
>>>>> Kevin
>>>>>
>>>>
>>>> Laura,
>>>>
>>>> We are getting following kernel panic [1] (not always, but quite
>>>> regularly) while booting Arndale-Octa (based on Samsung's Exynos5420)
>>>> board with upstream kernel. I haven't observed this issue with other
>>>> boards yet.
>>>>
>>>> This issue is observed when I am booting with uImage + dtb (within
>>>> roughly ~10 iterations).
>>>>
>>>
>>> Some more information:
>>>
>>> The boot logs are provided in pastebin, okay[2] and failed[3].
>>>
>>> In case of boot failures, I am getting a higher value for vm_total_pages
>>> (684424 in [3]). In case of successful boot on my board, it is always
>>> 521232 [2] on my board.
> 
> I can confirm that reverting the "Get rid of meminfo" patch gets the
> Octa board booting reliably again for me also.

Confirming that the revert [1] fixes also the issue I was reporting for
my Arndale Octa. I'm using zImage + dtb and had been resetting via J10.

Regards,
Andreas

[1] https://github.com/afaerber/linux/commits/arndale-octa-next

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