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@xxxxxxxxxx> 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
