On 2024-06-10 17:17:35 [+0200], Dmitry Dolgov wrote: > Hi, Hi, … > The BPF program in question is attached to sched_switch. The issue seems > to be similar to a couple of syzkaller reports [1], [2], although the > latter one is about nested progs, which seems to be not the case here. > Talking about nested progs, applying a similar approach as in [3] > reworked for bpf_ringbuf, elliminates the issue. > > Do I miss anything, is it a known issue? Any ideas how to address that? I haven't attached bpf program to trace-events so this new to me. But if you BPF attach programs to trace-events then there might be more things that can go wrong… Let me add this to the bpf-list-to-look-at. Do you get more splats with CONFIG_DEBUG_ATOMIC_SLEEP=y? Sebastian
