Hi Tiezhu After running the xdp-loader load XDP program on a loongson 3A6000 mini PC running an open source firewall LoonFire - port of IPFire on Loongson CPU, the mini PC is auto rebooted, and hard lockup when trying Fedora loongarch OS release, I have to press the power button to reboot the PC. here is part of the kernel message from IPFire: Jan 2 11:13:19 loongfire kernel: [ 6668.795062] rcu: INFO: rcu_preempt self-detected stall on CPU Jan 2 11:13:19 loongfire kernel: [ 6668.795067] rcu: ^I0-....: (1 GPs behind) idle=220c/0/0x3 softirq=22456/22459 fqs=2376 Jan 2 11:13:19 loongfire kernel: [ 6668.795072] rcu: ^I(t=5250 jiffies g=67605 q=771 ncpus=8) Jan 2 11:13:19 loongfire kernel: [ 6668.795077] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G O 6.12.5-ipfire #1 Jan 2 11:13:19 loongfire kernel: [ 6668.795080] Tainted: [O]=OOT_MODULE Jan 2 11:13:19 loongfire kernel: [ 6668.795081] Hardware name: Loongson Loongson-3A6000-7A2000-NUC/Loongson-3A6000-7A2000-NUC, BIOS Loongson-UDK2018-V4.0.05759-stable202405 07/12/24 15:49:14 Huacai suggested disabling jit and disable jit worked around the issue. I tried kernel 6.12 and the most recent upstream kernel, same issue. it should be reproducible on Fedora loongarch release by running xdp-loader load the XDP program. [0] has the kernel config and XDP program link. [0]: https://github.com/vincentmli/BPFire/issues/70 Thanks! Vincent
