Messages in this thread | | | Date | Thu, 29 Feb 2024 10:15:23 -0800 | Subject | Re: [PATCH] fix linux kernel BTF builds: increase max percpu variables by 10x | From | John Hubbard <> |
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> ... > Running > > bpftool btf dump file vmlinux |grep "] VAR" >
$ bpftool btf dump file vmlinux |grep "] VAR" | wc -l 4852
$ bpftool btf dump file vmlinux |grep "] VAR" | tail -5 [136994] VAR '_alloc_tag_cntr.9' type_id=703, linkage=static [137003] VAR '_alloc_tag_cntr.5' type_id=703, linkage=static [137004] VAR '_alloc_tag_cntr.7' type_id=703, linkage=static [137005] VAR '_alloc_tag_cntr.17' type_id=703, linkage=static [137018] VAR '_alloc_tag_cntr.14' type_id=703, linkage=static
> ...should give us a sense of what's going on. I only see 375 per-cpu > variables when I do this so maybe there's something > kernel-config-specific that might explain why you have so many more?
Yes, as mentioned earlier, this is specifically due to the .config. The .config is a huge distro configuration that has a lot of modules enabled.
thanks, -- John Hubbard NVIDIA
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