From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2AEDC433F5 for ; Sat, 12 Mar 2022 15:44:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232056AbiCLPpo (ORCPT ); Sat, 12 Mar 2022 10:45:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232024AbiCLPpn (ORCPT ); Sat, 12 Mar 2022 10:45:43 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62B813CA67; Sat, 12 Mar 2022 07:44:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=l4QEBebUaifZcj/TbJPAnWkVaUA1yr6/N7uY1h3AI5c=; b=Fg2Yg7p5QIHUfT85fRxcArBEjw bqeKPYLrLU2OIIlPlzsfVVCUoEQT6XofF+v4HECm3I8/zRbDVWjAseHRCUxu5e4UXLJ3DqTpfjuJf rsOQ1/1NpB3iKlKU62G7gZX4foThloIu5ECK892g8VKeQIfoDGvuWTbIGqNnjZ7aQAW5FWT+ga8Qj wb+Df/rx9JW5QZIISJ8olPEfTr/zchhGx1m/If4XxsB4bfKgwESm7UgfbzANW56G/R9ETMbrRNyue 7S2YJAS1iekYHhhW5FBqs0VAupXGds00vOdMDKlZ4zsGgUcWYdByJaBOfGkr6H42JjzO+nJZ3DeIC LKYl6q9Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nT3ub-002Vd3-ET; Sat, 12 Mar 2022 15:44:09 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id CB954987D0D; Sat, 12 Mar 2022 16:44:07 +0100 (CET) Date: Sat, 12 Mar 2022 16:44:07 +0100 From: Peter Zijlstra To: Alexei Starovoitov Cc: X86 ML , joao@overdrivepizza.com, hjl.tools@gmail.com, Josh Poimboeuf , Andrew Cooper , LKML , Nick Desaulniers , Kees Cook , Sami Tolvanen , Mark Rutland , alyssa.milburn@intel.com, Miroslav Benes , Steven Rostedt , Masami Hiramatsu , Daniel Borkmann , Andrii Nakryiko , bpf Subject: Re: [PATCH v4 00/45] x86: Kernel IBT Message-ID: <20220312154407.GF28057@worktop.programming.kicks-ass.net> References: <20220308200052.rpr4vkxppnxguirg@ast-mbp.dhcp.thefacebook.com> <20220309190917.w3tq72alughslanq@ast-mbp.dhcp.thefacebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 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!