On Tue, Dec 19, 2023 at 7:00 AM Farbod Shahinfar <farbod.shahinfar@xxxxxxxxx> wrote: > > The kernel versions tested are: > > - v6.1.0 > - v6.5.6 > - v6.6.0 .. > I suspect the issue is related to the use of bpf_loop but I do not have > any strong evidence. Is this a known issue? Have I done something wrong? You haven't done anything wrong :) bpf_loop is indeed broken in kernels 6.5 and earlier until the fixes are backported. These patches fixed the issue: https://lore.kernel.org/all/20231121020701.26440-1-eddyz87@xxxxxxxxx/ Are you sure you've tested on 6.6 ? Above fixes should be there.