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Kernel Error: unregister_netdevice: waiting for tun11 to become free. Usage count = 1

Santiago C

Regular Contributor
Hi!

I am recurrently having an issue whenever the OpenVPN client is stopped and can only revert it by rebooting. Currently using @john9527 fork but for what I could see the kernel is exactly as last Merlin's.
My syslog if filled with:
Code:
kern.emerg kernel: unregister_netdevice: waiting for tun11 to become free. Usage count = 1

I have spent days trying to investigate how to solve it and the only plausible thing that I found is something similar happening in another ASUS alt. firmware, wl500g recently fixed with a couple backports by @theMIROn which, to my surprise, is also a regular contributor to Merlin's code so I was wondering if there is any chance @RMerlin could review if those fixes could also be applied in this fw. Backporting kernel modules is way out of my league.

Issues referenced: https://github.com/wl500g/wl500g/issues/477 & https://github.com/wl500g/wl500g/issues/457
 
457 is already in the code. 477 was written for the MIPS kernel and the code is different for ARM, but let me try a few things.
 

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