Hi all, After a glibc update to 2.29, my 4.14 builds started failing like so: $ make -j$(nproc) defconfig bzImage HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf *** Default configuration is based on 'x86_64_defconfig' # # configuration written to .config # scripts/kconfig/conf --silentoldconfig Kconfig SYSTBL arch/x86/include/generated/asm/syscalls_32.h SYSHDR arch/x86/include/generated/asm/unistd_32_ia32.h SYSHDR arch/x86/include/generated/asm/unistd_64_x32.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_32.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_64.h SYSTBL arch/x86/include/generated/asm/syscalls_64.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_x32.h CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h UPD include/generated/uapi/linux/version.h DESCEND objtool HOSTCC /home/nathan/cbl/linux-stable/tools/objtool/fixdep.o HOSTLD /home/nathan/cbl/linux-stable/tools/objtool/fixdep-in.o LINK /home/nathan/cbl/linux-stable/tools/objtool/fixdep CC /home/nathan/cbl/linux-stable/tools/objtool/builtin-check.o CC /home/nathan/cbl/linux-stable/tools/objtool/builtin-orc.o CC /home/nathan/cbl/linux-stable/tools/objtool/check.o CC /home/nathan/cbl/linux-stable/tools/objtool/orc_gen.o CC /home/nathan/cbl/linux-stable/tools/objtool/orc_dump.o CC /home/nathan/cbl/linux-stable/tools/objtool/elf.o CC /home/nathan/cbl/linux-stable/tools/objtool/special.o GEN /home/nathan/cbl/linux-stable/tools/objtool/arch/x86/lib/inat-tables.c CC /home/nathan/cbl/linux-stable/tools/objtool/objtool.o CC /home/nathan/cbl/linux-stable/tools/objtool/libstring.o CC /home/nathan/cbl/linux-stable/tools/objtool/str_error_r.o CC /home/nathan/cbl/linux-stable/tools/objtool/exec-cmd.o CC /home/nathan/cbl/linux-stable/tools/objtool/pager.o CC /home/nathan/cbl/linux-stable/tools/objtool/help.o CC /home/nathan/cbl/linux-stable/tools/objtool/parse-options.o CC /home/nathan/cbl/linux-stable/tools/objtool/run-command.o CC /home/nathan/cbl/linux-stable/tools/objtool/sigchain.o CC /home/nathan/cbl/linux-stable/tools/objtool/subcmd-config.o CC /home/nathan/cbl/linux-stable/tools/objtool/arch/x86/decode.o LD /home/nathan/cbl/linux-stable/tools/objtool/libsubcmd-in.o LD /home/nathan/cbl/linux-stable/tools/objtool/arch/x86/objtool-in.o LD /home/nathan/cbl/linux-stable/tools/objtool/objtool-in.o AR /home/nathan/cbl/linux-stable/tools/objtool/libsubcmd.a LINK /home/nathan/cbl/linux-stable/tools/objtool/objtool UPD include/config/kernel.release HOSTCC arch/x86/tools/relocs_32.o HOSTCC arch/x86/tools/relocs_common.o HOSTCC arch/x86/tools/relocs_64.o WRAP arch/x86/include/generated/asm/dma-contiguous.h WRAP arch/x86/include/generated/asm/mcs_spinlock.h WRAP arch/x86/include/generated/asm/clkdev.h WRAP arch/x86/include/generated/asm/mm-arch-hooks.h WRAP arch/x86/include/generated/asm/early_ioremap.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h HOSTCC scripts/kallsyms HOSTCC scripts/pnmtologo HOSTCC scripts/conmakehash HOSTCC scripts/sortextable CC scripts/mod/empty.o CC scripts/mod/devicetable-offsets.s HOSTCC scripts/mod/mk_elfconfig HOSTCC scripts/selinux/mdp/mdp HOSTCC scripts/selinux/genheaders/genheaders In file included from scripts/selinux/genheaders/genheaders.c:19: ./security/selinux/include/classmap.h:245:2: error: #error New address family defined, please update secclass_map. #error New address family defined, please update secclass_map. ^~~~~ make[4]: *** [scripts/Makefile.host:102: scripts/selinux/genheaders/genheaders] Error 1 make[3]: *** [scripts/Makefile.build:585: scripts/selinux/genheaders] Error 2 make[3]: *** Waiting for unfinished jobs.... In file included from scripts/selinux/mdp/mdp.c:49: ./security/selinux/include/classmap.h:245:2: error: #error New address family defined, please update secclass_map. #error New address family defined, please update secclass_map. ^~~~~ make[4]: *** [scripts/Makefile.host:102: scripts/selinux/mdp/mdp] Error 1 make[3]: *** [scripts/Makefile.build:585: scripts/selinux/mdp] Error 2 make[2]: *** [scripts/Makefile.build:585: scripts/selinux] Error 2 make[2]: *** Waiting for unfinished jobs.... HOSTLD arch/x86/tools/relocs CHK scripts/mod/devicetable-offsets.h UPD scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o CHK include/generated/timeconst.h CC kernel/bounds.s UPD include/generated/timeconst.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/x86/kernel/asm-offsets.s HOSTLD scripts/mod/modpost make[1]: *** [Makefile:572: scripts] Error 2 make[1]: *** Waiting for unfinished jobs.... CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL scripts/checksyscalls.sh make: *** [Makefile:264: __build_one_by_one] Error 2 This is due to commit c017c71ce09f ("selinux: include sys/socket.h in host programs to have PF_MAX") [1] in the kernel interacting poorly with glibc's commit 38b0593e9a ("Add PF_XDP, AF_XDP and SOL_XDP from Linux 4.18 to bits/socket.h.") [2] I am not really sure how this should be fixed or who is at fault but I didn't see it reported anywhere yet (I assume the kernel) and I feel more comfortable on the kernel mailing list than other bug trackers so here we are. [1]: https://git.kernel.org/linus/c017c71ce09f4c7a5378fccbec6a3d7e96b0c5c2 [2]: https://sourceware.org/git/?p=glibc.git;a=commit;h=38b0593e9a862c3b35392a0f5b202696b8116aa3 Thanks, Nathan