Re: [PATCH v4 00/45] x86: Kernel IBT

[Peter Zijlstra <peterz@infradead.org>]

On Fri, Mar 11, 2022 at 09:09:38AM -0800, Alexei Starovoitov wrote:
> On Fri, Mar 11, 2022 at 2:40 AM Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > On Thu, Mar 10, 2022 at 05:29:11PM +0100, Peter Zijlstra wrote:
> >
> > > This seems to cure most of the rest. I'm still seeing one failure:
> > >
> > > libbpf: prog 'connect_v4_prog': BPF program load failed: Invalid argument
> > > libbpf: failed to load program 'connect_v4_prog'
> > > libbpf: failed to load object './connect4_prog.o'
> > > test_fexit_bpf2bpf_common:FAIL:tgt_prog_load unexpected error: -22 (errno 22)
> > > #48/4 fexit_bpf2bpf/func_replace_verify:FAIL
> >
> >
> > Hmm, with those two patches on I get:
> >
> > root@tigerlake:/usr/src/linux-2.6/tgl-build# ./test_progs -t fexit
> > #46 fentry_fexit:OK
> > #48 fexit_bpf2bpf:OK
> > #49 fexit_sleep:OK
> > #50 fexit_stress:OK
> > #51 fexit_test:OK
> > Summary: 5/9 PASSED, 0 SKIPPED, 0 FAILED
> >
> > On the tigerlake, I suppose I'm doing something wrong on the other
> > machine because there it's even failing on the pre-ibt kernel image.
> >
> > I'll go write up changelogs and stick these on.
> 
> What is the latest branch I can use to test it?

  git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/ibt

that also include bpf-next. Thanks!