Re: clang/objtool failures on linux-next

[Arnd Bergmann]

I've found two more objtool related build failures on today's linux-next.

See attachment for .config and object files.

==> build/x86/0x8F5E6B2F_defconfig/log <==
mm/memory.o: warning: objtool: folio_zero_user+0x69a: undefined stack state
mm/memory.o: error: objtool: folio_zero_user+0x69a: unknown CFA base reg -1
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:279: mm/memory.o] Error 255

==> build/x86/0xEC8A503_defconfig/log <==
vmlinux.o: warning: objtool: ___bpf_prog_run+0x202: sibling call from callable instruction with modified stack frame
vmlinux.o: warning: objtool: __x64_sys_get_mempolicy+0x1705: stack state mismatch: cfa1=4+288 cfa2=4+80
vmlinux.o: error: objtool: vmw_host_printf+0xd: unknown CFA base reg 0
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.vmlinux_o:76: vmlinux.o] Error 255

       Arnd

Attachment: objtool-failures-next-20260316.tar.gz
Description: application/gzip