From: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Date: Thu, 17 Oct 2019 16:53:58 +0200 > On Thu, Oct 17, 2019 at 11:05:01AM +0200, Sebastian Andrzej Siewior wrote: >> Disable BPF on PREEMPT_RT because >> - it allocates and frees memory in atomic context >> - it uses up_read_non_owner() >> - BPF_PROG_RUN() expects to be invoked in non-preemptible context > > For the latter you'd also need to disable seccomp-BPF and everything > cBPF related as they are /all/ invoked via BPF_PROG_RUN() ... +1 Right, we can't do this, no way.
