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FS#3690 - 6in4 interfaces creation sometimes stuck in an infinite loop #9098
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LGA1150: Update: It seems only kernel 5.10 has this issue. |
Ansuel: Can also confirm... I have this problem currently with dsa and he-tunnel (that i think is 6in4 ?) |
nbd: Can you please post a /etc/config/network that reproduces this? |
Ansuel: On my side it's really the basic network config with just lan bridge and the tunnel setup. nothing special at all. The problem is that thinks works for a while and then chase to work... I currently have a broken condition so if you have some command or you need some data, I can give you them very quickly. |
Ansuel: My current network config
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Ansuel: Any news on this? |
Ansuel: I tried updating iproute2 to the latest version 5.13 and now it doesn't work from the boot... |
LGA1150:
Router: Linksys WRT1900AC v2
OpenWrt version: SNAPSHOT r16134-c6652a7c94
netifd version: 2021-01-09-c00c8335-1
I have set up multiple 6in4 interfaces for testing, but sometimes some interface won't come up.
The system log is flooded with errors like these:
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is setting up now
Fri Mar 19 20:32:58 2021 daemon.notice netifd: wan6_4 (13717): Command failed: Unknown error
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is now down
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is setting up now
Fri Mar 19 20:32:58 2021 daemon.notice netifd: wan6_4 (13770): Command failed: Unknown error
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is now down
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is setting up now
Fri Mar 19 20:32:58 2021 daemon.notice netifd: wan6_4 (13794): Command failed: Unknown error
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is now down
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is setting up now
Fri Mar 19 20:32:58 2021 daemon.notice netifd: wan6_4 (13847): Command failed: Unknown error
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is now down
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is setting up now
Fri Mar 19 20:32:58 2021 daemon.notice netifd: wan6_4 (13871): Command failed: Unknown error
Fri Mar 19 20:32:58 2021 daemon.notice netifd: Interface 'wan6_4' is now down
And it also hogs CPU.
An workaround is manually remove the tunnel with iproute2, then restart the interface:
ip tun del 6in4-wan6_4
ifup wan6_4
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