Re: [BUG?] loxilb tc BPF program cause Loongarch kernel hard lockup

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On Wed, Mar 05, 2025 at 04:51:15PM -0800, Vincent Li wrote:
> Hi,
> 
> I have an issue recorded here [0] with kernel call trace  when I start
> loxilb, the loxilb tc BPF program seems to be loaded and attached to
> the network interface, but immediately it causes a loongarch kernel
> hard lockup, no keyboard response. Sometimes the panic call trace
> shows up in the monitor screen after I disabled kernel panic reboot
> (echo 0 > /proc/sys/kernel/panic) and started loxilb.
> 
> Background: I ported open source IPFire [1] to Loongarch CPU
> architecture and enabled kernel BPF features, added loxilb as LFS
> (Linux from scratch) addon software, loxilb 0.9.8.3 has libbpf 1.5.0
> which has loongarch support [2]. The same loxilb addon runs fine on
> x86 architecture. Any clue on this?
> 
> [0]: https://github.com/vincentmli/BPFire/issues/76
> [1]: https://github.com/ipfire/ipfire-2.x
> [2]: https://github.com/loxilb-io/loxilb/issues/972
> 

Thanks for your report!

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