https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99488
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- [43] .debug_line_str MIPS_DWARF 0000000000000000 ecf07bf 0066e6 01 MS 0 0 1 [44] .debug_line_str MIPS_DWARF 0000000000000000 ecf6ea5 0005d1 01 MS 0 0 1 Thus, doesn't seem to be dwz fault, the two .debug_line_str sections is something unexpected.