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Date: Wed, 2 Apr 2025 09:44:58 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Stanislav Fomichev <stfomichev@gmail.com>
Cc: Justin Iurman <justin.iurman@uliege.be>, Paolo Abeni
 <pabeni@redhat.com>, Alexei Starovoitov <alexei.starovoitov@gmail.com>, bpf
 <bpf@vger.kernel.org>, Network Development <netdev@vger.kernel.org>
Subject: Re: new splat
Message-ID: <20250402094458.006ba2a7@kernel.org>
In-Reply-To: <Z-wYH-gIvMd89-3d@mini-arch>
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	<d24ea1cc-4d32-44f9-9051-0c874f73f1c5@uliege.be>
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On Tue, 1 Apr 2025 09:45:19 -0700 Stanislav Fomichev wrote:
> > Correct, I came to the same conclusion based on that trace. However, I can't
> > reproduce it with a PREEMPT kernel. It goes through without problem and the
> > output is (as expected), i.e., "lwtunnel_xmit(): recursion limit reached on
> > datapath".  
> 
> For me adding the following to the config did the trick:
> CONFIG_PREEMPT
> CONFIG_DEBUG_PREEMPT

Could you send a patch to set these in kernel/configs/debug.config ?