[LEDE-DEV] ar7 (TI AR7): update to kernel 4.4, please test

[Florian Fainelli]

On 09/21/2016 07:16 AM, Mohammed Berdai wrote:
> On 09/20/2016 10:47 PM, Hauke Mehrtens wrote:
>> On 09/20/2016 10:57 PM, Mohammed Berdai wrote:
>>> On 09/18/2016 04:18 PM, Hauke Mehrtens wrote:
>>>> Hi,
>>>>
>>>> I updated the ar7 target to kernel 4.4 in this branch:
>>>> https://git.lede-project.org/?p=lede/hauke/staging.git;a=shortlog;h=refs/heads/kernel-4.4
>>>>
>>>> If you have any device supported by this target please test it and
>>>> report back if the ar7 target is still working with kernel 4.4 like
>>>> with the old kernel or if you see new problems. Please report back if it
>>>> worked and if it does not work. I only compile tested this because I do
>>>> not have this hardware.
>>>>
>>>> Having the target at kennel 4.4 is a requirement to get it into the next
>>>> release.
>>>>
>>>> Hauke
>>>>
>>>> _______________________________________________
>>>> Lede-dev mailing list
>>>> Lede-dev at lists.infradead.org
>>>> http://lists.infradead.org/mailman/listinfo/lede-dev
>>>>
>>>
>>> Hi,
>>>
>>> I tested your git rep before kernel 4.4 commit and after it.
>>>
>>> I have Dlink DSL-624 and DSL-524. They have identical hardware. The former has a Wifi card.
>>>
>>> I have already tested John's (blogic)) repo when he tried to port AR7 to 4.4 and reported back.
>>>
>>> These are the results:
>>>
>>> before 4.4 commit (kernel 3.18.29):
>>>  * Ethernet ports work (ping works)
>>>  * via UART, boot msgs appear almost normal except two/three lines
>>>  * also via UART, greeting msg and results of commands appear scrambled however,
>>>    late msgs from boot like   random: nonblocking pool is initialized  still appear normal
>>>
>>>
>>> after 4.4 commit:
>>>  * no response from pinging at 192.168.1.1. In some rare cases I get only one response during early boot.
>>>  * large portion of boot msgs get omitted after 10 seconds
>>>  * no results are shown when issuing commands via UART.
>>>
>>>
>>> These issues happened exactly the same as John's attempt to port 4.4 two months ago
>> Hi Mohammed,
>>
>> Thank you for the information. Have you every tried kernel 4.1 in LEDE?
>> To know if kernel 4.1 also has these problems would help to narrow the
>> problems down.
>>
>> Hauke
>>
> 
> Hi,
> 
> No, I didn't try 4.1.
> 
> I tried different serial speeds with different terminals (minicom/picocom/putty/cutecom). For 3.18.29 entering Fail-safe lines appear scrambled the remaining output lines appear normal.
> 
> Dlink DSL-524 and DSL-624 both have only 16MB of ram.

The UART on this platform has always acted funky, was the serial_kludge
patch properly forward ported?
-- 
Florian