Re: "Dead loop on virtual device" error without softirq-BKL on PREEMPT_RT

[Sebastian Andrzej Siewior]

On 2026-02-17 00:48:25 [+0100], Bert Karwatzki wrote:
> The problem seems to be that different preemtible threads try to send skbs. 

This does not matter because the counter is per-thread not per-CPU. 

> 2026-02-17T00:29:24.212231+01:00 [ T1513] Dead loop on virtual device wlp4s0, fix it urgently!

Could you please do a backtrace here, for instance via WARN_ON_ONCE()

> Bert Karwatzki

Sebastian