From: Uros Bizjak <ubizjak@gmail•com>
To: Alexei Starovoitov <alexei.starovoitov@gmail•com>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail•com>,
Stephen Rothwell <sfr@canb•auug.org.au>,
Daniel Borkmann <daniel@iogearbox•net>,
Alexei Starovoitov <ast@kernel•org>,
Andrii Nakryiko <andrii@kernel•org>,
Andrew Morton <akpm@linux-foundation•org>,
bpf <bpf@vger•kernel.org>, Networking <netdev@vger•kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
Linux Next Mailing List <linux-next@vger•kernel.org>
Subject: Re: linux-next: build failure after merge of the bpf-next tree
Date: Wed, 19 Mar 2025 17:06:37 +0100 [thread overview]
Message-ID: <CAFULd4brsMuNX3-jJ44JyyRZqN1PO9FwJX7N3mvMwRzi8XYLag@mail.gmail.com> (raw)
In-Reply-To: <CAADnVQ+8apdQtyvMO=SKXCE_HWpQEo3CaTUwd39ekYEj-D4TQA@mail.gmail.com>
On Wed, Mar 19, 2025 at 3:55 PM Alexei Starovoitov
<alexei.starovoitov@gmail•com> wrote:
>
> On Wed, Mar 19, 2025 at 7:36 AM Kumar Kartikeya Dwivedi
> <memxor@gmail•com> wrote:
> >
> > > >
> > > > I've sent a fix [0], but unfortunately I was unable to reproduce the
> > > > problem with an LLVM >= 19 build, idk why. I will try with GCC >= 14
> > > > as the patches require to confirm, but based on the error I am 99%
> > > > sure it will fix the problem.
> > >
> > > Probably because __seg_gs has CC_HAS_NAMED_AS depends on CC_IS_GCC.
> > > Let me give it a go with GCC.
> > >
> >
> > Can confirm now that this fixes it, I just did a build with GCC 14
> > where Uros's __percpu checks kick in.
>
> Great. Thanks for checking and quick fix.
>
> btw clang supports it with __attribute__((address_space(256))),
> so CC_IS_GCC probably should be relaxed.
https://github.com/llvm/llvm-project/issues/93449
needs to be fixed first. Also, the feature has to be thoroughly tested
(preferably by someone having a deep knowledge of clang) before it is
enabled by default.
Thanks,
Uros.
next prev parent reply other threads:[~2025-03-19 16:06 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 2:33 linux-next: build failure after merge of the bpf-next tree Stephen Rothwell
2025-03-19 2:46 ` Alexei Starovoitov
2025-03-19 3:28 ` Stephen Rothwell
2025-03-19 13:37 ` Kumar Kartikeya Dwivedi
2025-03-19 13:43 ` Kumar Kartikeya Dwivedi
2025-03-19 14:36 ` Kumar Kartikeya Dwivedi
2025-03-19 14:55 ` Alexei Starovoitov
2025-03-19 15:11 ` Alexei Starovoitov
2025-03-19 16:06 ` Uros Bizjak [this message]
2025-03-19 18:56 ` Alexei Starovoitov
2025-03-19 19:43 ` Uros Bizjak
2025-03-19 23:16 ` Alexei Starovoitov
2025-03-20 7:49 ` Uros Bizjak
2025-03-20 23:17 ` Alexei Starovoitov
2025-03-21 7:15 ` Uros Bizjak
2025-03-19 5:03 ` Uros Bizjak
-- strict thread matches above, loose matches on Subject: below --
2026-05-26 12:13 Mark Brown
2026-05-26 22:08 ` Alexei Starovoitov
2026-05-27 13:24 ` Mark Brown
2026-05-27 19:27 ` Tejun Heo
2026-04-27 13:26 Thierry Reding
2026-04-27 13:34 ` Thierry Reding
2026-04-27 13:43 ` Alan Maguire
2025-03-12 3:52 Stephen Rothwell
2024-10-16 6:05 Stephen Rothwell
2024-10-16 16:25 ` Alexei Starovoitov
2024-10-16 18:35 ` Namhyung Kim
2024-10-16 19:32 ` Alexei Starovoitov
2024-09-13 3:55 Stephen Rothwell
2024-09-13 4:00 ` Al Viro
2024-09-13 4:26 ` Andrii Nakryiko
2024-09-13 4:43 ` Al Viro
2024-09-15 23:30 ` Stephen Rothwell
2024-09-13 3:45 Stephen Rothwell
2024-09-13 3:48 ` Stephen Rothwell
2024-09-15 23:27 ` Stephen Rothwell
2024-09-13 3:32 Stephen Rothwell
2024-09-15 23:26 ` Stephen Rothwell
2024-08-14 1:25 Stephen Rothwell
2024-08-14 1:41 ` Al Viro
2024-08-14 2:37 ` Stephen Rothwell
2024-08-14 14:50 ` Christian Brauner
2024-08-30 1:32 ` Stephen Rothwell
2024-08-14 1:18 Stephen Rothwell
2024-06-17 18:15 Mark Brown
2024-06-22 8:17 ` kernel test robot
2024-06-22 8:28 ` kernel test robot
2024-06-25 1:22 ` Thinker Li
2024-06-25 15:54 ` Benjamin Tissoires
2024-06-25 16:03 ` Mark Brown
2024-06-25 17:14 ` Alexei Starovoitov
2024-06-27 7:14 ` Benjamin Tissoires
2024-07-09 23:13 ` Stephen Rothwell
2024-07-18 1:49 ` Stephen Rothwell
2024-07-18 7:42 ` Benjamin Tissoires
2023-03-19 23:26 Stephen Rothwell
2023-03-20 12:07 ` Alexander Lobakin
2023-03-21 22:35 ` Stephen Rothwell
2022-07-20 1:59 Stephen Rothwell
2022-07-20 3:42 ` Alexei Starovoitov
2022-07-20 3:44 ` Stanislav Fomichev
2022-04-19 1:56 Stephen Rothwell
2022-04-21 0:32 ` Stephen Rothwell
2022-04-21 9:45 ` Daniel Borkmann
2022-04-21 10:40 ` Maciej Fijalkowski
2022-02-09 0:21 Stephen Rothwell
2021-12-03 0:15 Stephen Rothwell
2021-09-14 1:37 Stephen Rothwell
2021-09-14 23:25 ` Andrii Nakryiko
2021-09-14 23:38 ` Stephen Rothwell
2021-09-14 23:40 ` Andrii Nakryiko
2021-09-14 23:59 ` Stephen Rothwell
2021-09-15 1:27 ` Alexei Starovoitov
2021-08-26 1:50 Stephen Rothwell
2021-08-26 2:01 ` Daniel Xu
2021-03-11 0:47 Stephen Rothwell
2021-03-11 6:47 ` Björn Töpel
2021-03-12 1:00 ` Stephen Rothwell
2021-03-26 1:18 ` Stephen Rothwell
2020-12-01 8:07 Stephen Rothwell
2020-12-01 14:55 ` Daniel Borkmann
2020-09-08 3:08 Stephen Rothwell
2020-09-08 17:54 ` Andrii Nakryiko
2020-08-21 1:11 Stephen Rothwell
2020-08-25 1:20 ` Stephen Rothwell
2020-08-25 1:25 ` Alexei Starovoitov
2020-08-25 3:04 ` Stephen Rothwell
2020-08-25 3:27 ` Alexei Starovoitov
2020-08-25 6:50 ` Stephen Rothwell
2020-08-25 14:33 ` Alexei Starovoitov
2020-08-25 21:10 ` Stephen Rothwell
2020-08-25 22:34 ` Alexei Starovoitov
2020-08-25 23:09 ` Stephen Rothwell
2020-07-14 2:22 Stephen Rothwell
2020-07-14 6:16 ` Jiri Olsa
2020-07-14 8:31 ` Jiri Olsa
2020-07-14 9:19 ` Geert Uytterhoeven
2019-07-01 4:57 Stephen Rothwell
2019-07-01 5:01 ` Stephen Rothwell
2019-04-18 1:57 Stephen Rothwell
2019-02-28 1:31 Stephen Rothwell
2019-02-28 2:18 ` Alexei Starovoitov
2018-10-03 3:18 Stephen Rothwell
2018-10-03 5:29 ` Joe Stringer
2018-09-07 0:19 Stephen Rothwell
2018-09-07 0:22 ` Alexei Starovoitov
2018-09-07 5:21 ` Björn Töpel
2018-09-07 5:45 ` Alexei Starovoitov
2017-12-13 1:32 Stephen Rothwell
2017-12-13 1:47 ` Alexei Starovoitov
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