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

From: Alexei Starovoitov
Date: Fri Mar 11 2022 - 12:09:55 EST


On Fri, Mar 11, 2022 at 2:40 AM Peter Zijlstra <peterz@xxxxxxxxxxxxx> 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?