[OpenWrt-Devel] [PATCH] ath79: switch to kernel 5.4

[Magnus Kroken]

Hi all

On 03.04.2020 11:21, Bjørn Mork wrote:
> David Bauer <mail at david-bauer.net> writes:
> 
>> As the reported major bugs are ironed out, switch to the new kernel to
>> begin testing with a broader audience.
> 
> 
> Hmm... I wonder if you might want to hold back on that for a while.
> 
> I have no useful info yet since I don't have console access on this
> device, but I just lost network access to a UniFi AP AC PRO after trying
> out current master (fcd14017007d).

I held back and planned to report when I have a log from serial, but I'm 
sending this now since this sounds similar to my experience.

I've tested 5.4 on my tl-wdr4300v1, and it got stuck in reboot loop 
recently. I plan to get a serial connection on it this weekend to see 
exactly what happens, but with the easy TFTP recovery I've bisected it 
to the GCC 8.4 update. Doing a dirclean between each test, 
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=db70077668e757a27f41d9cb3c84f28ea7d4c22e 
is the first bad commit. This is the simple config I've used for testing:

CONFIG_TARGET_ath79=y
CONFIG_TARGET_ath79_generic=y
CONFIG_TARGET_ath79_generic_DEVICE_tplink_tl-wdr4300-v1=y
CONFIG_LINUX_5_4=y
CONFIG_TESTING_KERNEL=y

Testing is on hold as the device is in service right now, but I'd 
appreciate any ideas for further testing.

/Magnus

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