BUG: scheduling while atomic: swapper/0/0/0x00000100


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Hi all,

 

I have been using a Rock64 with hostapd and a usb adapter that uses realtek drivers for a couple of months now.

Recently, like a week or two, after what i believe was a kernel update i started getting random freezes in the board. As i use it "headless", when it happens the only way to get it back working is by power cycling it. This means that until today i had no logs of what was happening. Today although, i left my laptop on for a couple hours, with tail -f on kernel.log, messages and syslog.

 

Attached in the file called logs.txt is what i managed to obtain from a terminated ssh session to the board.

 

Im running Linux NetMan 4.4.213-rockchip64 #27 SMP Tue Apr 14 17:21:23 CEST 2020 aarch64 GNU/Linux.

 

Anyone has any clues about it? Will there be a fix for this error? Should i downgrade the last update (i have a backup image) or try to update to kernel 5.4?

 

Last time i tried a version 5 kernel i dont remember well but the board didnt boot or something.

 

Thank you for the help.

 

logs.txt

armbianmonitor.txt

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The driver is the one that comes with armbian out of the box. Its version is:

 

# modinfo 88XXau
filename:       /lib/modules/4.4.213-rockchip64/kernel/drivers/net/wireless/rtl8812au/88XXau.ko
version:        v5.6.4.2_35491.20191025

 

Right now i dont have any update on apt-get, so i believe i have the latest from armbian repositories.

 

I will try to look into that one on the link you gave me.

 

Thank you for the help.

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2 hours ago, systemcarrotpt said:

The driver is the one that comes with armbian out of the box. Its version is:

 

If you use this wireless, you can try blacklisting it and compiling older / different branches of the driver ...  In case troubles comes up on a modern kernel, people that maintain the driver (https://github.com/aircrack-ng/rtl8812au) might be interested trying to fix the problem.

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2 hours ago, systemcarrotpt said:

So ill try to contact someone at the maintainer to let them know i have this problem.

 

With kernel 5.4.y you can hope on some, while with 4.4.y ... I doubt anyone will invest their time to fix problems there. If they are kernel relatated at all ... so try 5.4.y first.

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