[LEDE-DEV] ar71xx v4.4 testing

[Hannu Nyman]

On 14.5.2016 14:03, Felix Fietkau wrote:
> On 2016-05-14 12:56, Hannu Nyman wrote:
>> On 14.5.2016 11:54, John Crispin wrote:
>>> i pushed a tiny patch to fix a regression which i believe was the root
>>> cause for v4.4 not working for most folks. if anyone has time to test
>>> please do so.
>> Sorry but no beef. I still end up in a reboot loop with my WNDR3800.
>> I applied your two 4.4. patches manually to my sources.
>>
>> As far as I could see from the LEDs, the router reboots before the failsafe
>> entrance point is reached. Behaviour looks similar as before your patches. (I
>> have been compiling and trying 4.4 monthly ever since nbd introduced 4.4
>> support for ar71xx initially and so far every attempt has been a reboot loop.)
> Please send a boot log, I'll look into it as well.
>
> - Felix


Here you are. I attached a serial cable to my WNDR3800 and tested both lede 
r222 kernel 4.1 build and the new kernel 4.4 build r231 + John's patches.

The 4.4 build reboots almost immediately after entering the preinit phase, 
right after this line:
    random: procd urandom read with 12 bits of entropy available

Otherwise, in addition to a line about devicetree, I do not notice any 
significant difference in boot message shown to the serial console.
I will send the complete bootlogs to Felix and John off-list.

----------

kernel 4.4 lede r231:

[    6.829835] hub 2-0:1.0: USB hub found
[    6.833837] hub 2-0:1.0: 2 ports detected
[    6.841699] usbcore: registered new interface driver usb-storage
[    6.849523] init: - preinit -
[    7.420202] eth0: link up (1000Mbps/Full duplex)
[    7.441226] random: procd urandom read with 12 bits of entropy available
þþ

U-Boot 1.1.4 (May 27 2011 - 14:58:01)

DNI HW ID: 29763654 flash 16MB RAM 128MB (ar7100) U-boot dni25 V0.1
-------------

kernel 4.1 lede r222:

[    6.789554] hub 2-0:1.0: USB hub found
[    6.793555] hub 2-0:1.0: 2 ports detected
[    6.801445] usbcore: registered new interface driver usb-storage
[    6.809542] init: - preinit -
[    7.381367] eth0: link up (1000Mbps/Full duplex)
[    7.402792] random: procd urandom read with 12 bits of entropy available
Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
[   13.617654] mount_root: Could not open mtd device: /dev/mtd4
[   13.623365] mount_root: reading rootfs failed
[   13.631594] mount_root: loading kmods from internal overlay