Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <CAJCQCtSQLc0VHqO4BY_-YB2OmCNNmHCS6fNdQKmMWGn2v=Jpdw@mail.gmail.com>
 <CAJCQCtRHOidM7Vps1JQSpZA14u+B5fR860FwZB=eb1wYjTpqDw@mail.gmail.com>
 <CAEf4BzZ4oTB0-JizHe1VaCk2V+Jb9jJoTznkgh6CjE5VxNVqbg@mail.gmail.com>
 <CAJCQCtRw6UWGGvjn0x__godYKYQXXmtyQys4efW2Pb84Q5q8Eg@mail.gmail.com>
 <20210204010038.GA854763@kernel.org> <CAJCQCtQfgRp78_WSrSHLNUUYNCyOCH=vo10nVZW_cyMjpZiNJg@mail.gmail.com>
 <CAEf4Bza4XQxpS7VTNWGk6Rz-iUwZemF6+iAVBA_yvrWnV0k8Qg@mail.gmail.com>
 <CAJCQCtRDJ_uiJcanP_p+y6Kz76c4P-EmndMyfHN5f4rtkgYhjA@mail.gmail.com>
 <20210204132625.GB910119@kernel.org> <20210204163319.GD910119@kernel.org>
In-Reply-To: <20210204163319.GD910119@kernel.org>
From:   Chris Murphy <lists@colorremedies.com>
Date:   Thu, 4 Feb 2021 20:10:52 -0700
Message-ID: <CAJCQCtT-i0Lv2zxUDko3XuiHpUqOnYPeND5LzD=zgrB1-GNvAg@mail.gmail.com>
Subject: Re: [FIXED] Re: 5:11: in-kernel BTF is malformed
To:     Arnaldo Carvalho de Melo <acme@kernel.org>
Cc:     Chris Murphy <lists@colorremedies.com>, bpf <bpf@vger.kernel.org>,
        Jiri Olsa <jolsa@kernel.org>, dwarves@vger.kernel.org,
        Nick Desaulniers <ndesaulniers@google.com>,
        Yonghong Song <yhs@fb.com>,
        Andrii Nakryiko <andrii@kernel.org>,
        Masahiro Yamada <masahiroy@kernel.org>,
        Nathan Chancellor <natechancellor@gmail.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Clang-Built-Linux ML <clang-built-linux@googlegroups.com>,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
        linux-arch <linux-arch@vger.kernel.org>,
        Jakub Jelinek <jakub@redhat.com>,
        Fangrui Song <maskray@google.com>,
        Caroline Tice <cmtice@google.com>,
        Nick Clifton <nickc@redhat.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Thu, Feb 4, 2021 at 9:33 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>
> So I think that for the problems related to building the kernel with gcc
> 11 in Fedora Rawhide using the default that is now DWARF5, pahole 1.20
> is good to go and I'll tag it now.

dwarves-1.20-1.fc34.x86_64
libdwarves1-1.20-1.fc34.x86_64

Fixes both "failed to validate module [?????] BTF: -22" type errors,
and 'in-kernel BTF is malformed" with qemu-kvm and libvirt.

Is that expected? Or maybe the second issue was fixed by
gcc-11.0.0-0.18.fc34.x86_64 [(GCC) 11.0.0 20210130]? This is what I
get for changing more than one thing at once.

--
Chris Murphy