** Description changed: New pahole (version >1.24) generates by default new BTF_KIND_ENUM64 BTF tag, which is not supported by stable kernel. As a result the kernel with CONFIG_DEBUG_INFO_BTF option will fail to load kernel modules (such as media-control e.g. mc.ko) with following error: - BTFIDS mc - FAILED: load BTF from vmlinux: Invalid argument + BTFIDS mc + FAILED: load BTF from mc: Invalid argument New pahole provides --skip_encoding_btf_enum64 option to skip BTF_KIND_ENUM64 generation and produce BTF supported by stable kernel. diff --git a/scripts/Makefile.btf b/scripts/Makefile.btf index b75f09f3f424..f7279643c4a6 100644 --- a/scripts/Makefile.btf +++ b/scripts/Makefile.btf @@ -14,6 +14,8 @@ pahole-flags-$(call test-ge, $(pahole-ver), 121) += --btf_gen_floats - pahole-flags-$(call test-ge, $(pahole-ver), 122) += -j + pahole-flags-$(call test-ge, $(pahole-ver), 122) += -j +pahole-flags-$(call test-ge, $(pahole-ver), 124) += --skip_encoding_btf_enum64 + - pahole-flags-$(call test-ge, $(pahole-ver), 125) += --skip_encoding_btf_inconsistent_proto --btf_gen_optimized + pahole-flags-$(call test-ge, $(pahole-ver), 125) += --skip_encoding_btf_inconsistent_proto --btf_gen_optimized -- See similar issue in Jammy to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051376
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2125475 Title: Linux realtime 6.8.1 kernel FAILED: load BTF from mc: Invalid argument To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-realtime/+bug/2125475/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
