Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace

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Subject: Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
From: Sedat Dilek <sedat.dilek@xxxxxxxxx>
Date: Mon, 26 Aug 2024 12:18:03 +0200
Cc: Shung-Hsi Yu <shung-hsi.yu@xxxxxxxx>, dwarves@xxxxxxxxxxxxxxx, Jiri Slaby <jirislaby@xxxxxxxxxx>, Jiri Olsa <olsajiri@xxxxxxxxx>, masahiroy@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Nathan Chancellor <nathan@xxxxxxxxxx>, Nicolas Schier <nicolas@xxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Eduard Zingerman <eddyz87@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yonghong.song@xxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, linux-kbuild@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, msuchanek@xxxxxxxx
In-reply-to: <ZsdYGOS7Yg9pS2BJ@x1>
Reply-to: sedat.dilek@xxxxxxxxx

On Thu, Aug 22, 2024 at 5:24 PM Arnaldo Carvalho de Melo
<acme@xxxxxxxxxx> wrote:

> Please let me know if what is in the 'next' branch of:
>
> https://git.kernel.org/pub/scm/devel/pahole/pahole.git
>
> Works for you, that will be extra motivation to move it to the master
> branch and cut 1.28.

For pahole version 1.28 - Please, Go Go Go.

-Sedat-

pahole 1.27 segfaults when generating BTF for modules built with LTO #2032
https://github.com/ClangBuiltLinux/linux/issues/2032

References:
- [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Jiri Slaby (SUSE)
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Jiri Olsa
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Jiri Slaby
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Jiri Slaby
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Jiri Slaby
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Shung-Hsi Yu
- Re: [RFC] kbuild: bpf: Do not run pahole with -j on 32bit userspace
  - From: Arnaldo Carvalho de Melo

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