Conflict with broadcom component.

Conflict with broadcom component.

[Jun Gyu Park]

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I installed Wireguard on my Asus router.
Some sites work but others slow or do not response.
I tried adjust MTU but no luck.

Kernel makes following error messages.

Apr  1 16:17:43 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000091 new_key=0x20000092
Apr  1 16:17:43 kernel: ^[[0m
Apr  1 16:18:04 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000092 new_key=0x20000093
Apr  1 16:18:04 kernel: ^[[0m
Apr  1 16:18:05 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000093 new_key=0x20000094
Apr  1 16:18:05 kernel: ^[[0m
Apr  1 16:18:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000094 new_key=0x20000095
Apr  1 16:18:10 kernel: ^[[0m
Apr  1 16:18:11 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when adding flow net_p=ffffffc0100cba60  dir=0
old_key=0x20000095 new_key=0x20000096
Apr  1 16:18:11 kernel: ^[[0m
Apr  1 16:18:41 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:18:41 kernel: ^[[0m
Apr  1 16:19:17 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:19:17 kernel: ^[[0m
Apr  1 16:19:52 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:19:52 kernel: ^[[0m
Apr  1 16:20:01 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:01 kernel: ^[[0m
Apr  1 16:20:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:10 kernel: ^[[0m
Apr  1 16:20:10 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:10 kernel: ^[[0m
Apr  1 16:20:28 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0100cba60
Apr  1 16:20:28 kernel: ^[[0m
Apr  1 16:20:55 kernel: ^[[0;33;41mBLOG ERROR blog_request :blog_key
corruption when deleting flowfor net_p=ffffffc0110eb010
Apr  1 16:20:55 kernel: ^[[0m

That codes in here.
https://github.com/RMerl/asuswrt-merlin.ng/blob/master/release/src-rt-5.02hnd/kernel/linux-4.1/net/core/blog.c

Can you guys review and tell what's wrong?
I don't know computer code :(.

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Re: Conflict with broadcom component.

[Jason A. Donenfeld]

Hi Jun,

Fascinating. I really don't know and I'll need to spend some time
looking into what on earth Broadcom has done with this kernel. There
appears to be some kind of data structure added to the skb that isn't
an skb anymore, under CONFIG_BCM_KF_NBUFF. "KuffinBuff"? I imagine the
correct fields aren't being reinitialized by skb_scrub_packet or the
like. Ubiquiti had a similar issue, which we were able to patch around
in compat.h. So hopefully there's a similarly simple fix for this
kernel here. Off the top of my head, though, I don't see exactly
what's up and I'll need to actually try to wrap my mind around
Broadcom's castle.

Jason