From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Ian Rogers <irogers@google.com>,
Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Next Mailing List <linux-next@vger.kernel.org>,
namhyung@kernel.org
Subject: Re: linux-next: build failure after merge of the perf tree
Date: Wed, 29 Mar 2023 09:28:39 -0300 [thread overview]
Message-ID: <ZCQu9+J8/AhAXgNI@kernel.org> (raw)
In-Reply-To: <20230329100612.074b18d0@canb.auug.org.au>
Em Wed, Mar 29, 2023 at 10:06:12AM +1100, Stephen Rothwell escreveu:
> Hi Arnaldo,
> On Tue, 28 Mar 2023 16:47:23 -0300 Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > The config files you used don't match the running kernels
> This is just the way Debian names its kernel packages.
> > > $ uname -a
> > > Linux zz1 6.0.0-5-powerpc64le #1 SMP Debian 6.0.10-2 (2022-12-01) ppc64le GNU/Linux
> ^^^^^^^^^^^^^^^^^^^
> > > $ ls -l /sys/kernel/bpf/
> > > ls: cannot access '/sys/kernel/bpf/': No such file or directory
> > > $ grep CONFIG_DEBUG_INFO_BTF /boot/config-6.0.0-5-powerpc64le
> ^^^^^^^^^^^^^^^^^^^
> And so on. It just happens that this kernel is based on v6.0.10.
> $ uname -r
> 6.0.0-5-powerpc64le
> So they are the correct config files.
> Also, the mail I replied to talked about checking /sys/kernel/bpf/ (not
> btf) :-(
Sorry about that, I replied from my smartphone, when on my workstation
I try to try the commands and copy'n'paste the whole command + output
sequence to avoid such mistakes.
> still on my build machine (of course):
> $ ls -l /sys/kernel/btf/
> ls: cannot access '/sys/kernel/btf/': No such file or directory
> So it seems that Debian do not build their powerpcle kernels with
> CONFIG_DEBUG_INFO_BTF. I don't know why not since all the dependencies
> seem to be OK.
Right, at this point they should if they want to properly support the
full set of BPF functionalities, notably CO-RE.
> [On my arm64 machine:
>
> $ ls -l /sys/kernel/btf/vmlinux
> -r--r--r-- 1 root root 5209570 Mar 29 09:52 /sys/kernel/btf/vmlinux
>
> and on my amd64 machine:
>
> $ ls -l /sys/kernel/btf/vmlinux
> -r--r--r-- 1 root root 8536946 Mar 29 10:04 /sys/kernel/btf/vmlinux
> ]
Everything should be working fine on those machines, right?
- Arnaldo
next prev parent reply other threads:[~2023-03-29 12:28 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-16 22:50 linux-next: build failure after merge of the perf tree Stephen Rothwell
2023-03-16 23:11 ` Arnaldo Carvalho de Melo
2023-03-16 23:55 ` Stephen Rothwell
2023-03-17 3:23 ` Ian Rogers
2023-03-21 21:39 ` Stephen Rothwell
2023-03-22 18:37 ` Ian Rogers
2023-03-22 22:54 ` Stephen Rothwell
2023-03-23 13:27 ` Arnaldo Carvalho de Melo
2023-03-27 20:31 ` Ian Rogers
2023-03-28 1:33 ` Stephen Rothwell
2023-03-28 19:47 ` Arnaldo Carvalho de Melo
2023-03-28 23:06 ` Stephen Rothwell
2023-03-29 12:28 ` Arnaldo Carvalho de Melo [this message]
2023-04-03 5:15 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2024-04-01 22:41 Stephen Rothwell
2024-04-02 20:17 ` Arnaldo Carvalho de Melo
2024-04-12 15:22 ` Arnaldo Carvalho de Melo
2024-04-13 2:43 ` Stephen Rothwell
2024-03-21 21:41 Stephen Rothwell
2024-03-21 23:18 ` Arnaldo Carvalho de Melo
2024-03-21 23:19 ` Arnaldo Carvalho de Melo
2024-03-21 23:32 ` Stephen Rothwell
2024-03-22 2:13 ` Stephen Rothwell
2024-03-22 14:32 ` Arnaldo Carvalho de Melo
2024-03-21 23:36 ` Stephen Rothwell
2024-03-21 23:40 ` arnaldo.melo
2024-03-21 23:48 ` Arnaldo Carvalho de Melo
2024-02-21 23:06 Stephen Rothwell
2024-02-23 19:50 ` Arnaldo Carvalho de Melo
2024-02-06 23:40 Stephen Rothwell
2024-02-07 0:02 ` Ian Rogers
2023-10-24 23:26 Stephen Rothwell
2023-10-25 0:34 ` Namhyung Kim
2023-05-29 23:05 Stephen Rothwell
2023-05-30 2:16 ` Ian Rogers
2022-08-30 22:34 Stephen Rothwell
2022-09-01 5:11 ` Anshuman Khandual
2022-09-06 19:05 ` Stephen Rothwell
2022-09-07 2:31 ` Anshuman Khandual
2022-09-07 3:00 ` Stephen Rothwell
2022-09-07 4:22 ` Anshuman Khandual
2022-09-08 15:21 ` Arnaldo Carvalho de Melo
2022-07-20 23:05 Stephen Rothwell
2022-07-21 2:35 ` Ian Rogers
2022-07-21 3:55 ` Stephen Rothwell
2022-07-21 5:33 ` Ian Rogers
2022-01-05 22:19 Stephen Rothwell
2022-01-07 8:58 ` kajoljain
2022-01-11 21:45 ` Stephen Rothwell
2022-01-11 22:01 ` Arnaldo Carvalho de Melo
2022-01-12 5:30 ` kajoljain
2022-01-12 6:16 ` Stephen Rothwell
2022-01-14 12:03 ` Michael Ellerman
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