tree: https://github.com/ammarfaizi2/linux-block bpf/bpf-next/master head: e5313968c41ba890a91344773a0474d0246d20a3 commit: ed2d9e1a26cca963ff5ed3b76326d70f7d8201a9 [212/245] bpf: Use size instead of pages in bpf_binary_header config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20220210/202202101503.p1WYvmmS-lk...) compiler: powerpc-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/ammarfaizi2/linux-block/commit/ed2d9e1a26cca963ff5ed3b... git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block bpf/bpf-next/master git checkout ed2d9e1a26cca963ff5ed3b76326d70f7d8201a9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the ammarfaizi2-block/bpf/bpf-next/master HEAD e5313968c41ba890a91344773a0474d0246d20a3 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): arch/powerpc/net/bpf_jit_comp.c: In function 'bpf_int_jit_compile': 250 | bpf_flush_icache(bpf_hdr, (u8 *)bpf_hdr + (bpf_hdr->pages * PAGE_SIZE)); | ^~ vim +250 arch/powerpc/net/bpf_jit_comp.c 4ea76e90a97d22 Christophe Leroy 2021-03-22 245 4ea76e90a97d22 Christophe Leroy 2021-03-22 246 fp->bpf_func = (void *)image; 4ea76e90a97d22 Christophe Leroy 2021-03-22 247 fp->jited = 1; 983bdc0245a29c Ravi Bangoria 2021-10-12 248 fp->jited_len = proglen + FUNCTION_DESCR_SIZE; 4ea76e90a97d22 Christophe Leroy 2021-03-22 249 4ea76e90a97d22 Christophe Leroy 2021-03-22 @250 bpf_flush_icache(bpf_hdr, (u8 *)bpf_hdr + (bpf_hdr->pages * PAGE_SIZE)); 4ea76e90a97d22 Christophe Leroy 2021-03-22 251 if (!fp->is_func || extra_pass) { 44a8214de96baf Hari Bathini 2021-10-25 252 bpf_jit_binary_lock_ro(bpf_hdr); 4ea76e90a97d22 Christophe Leroy 2021-03-22 253 bpf_prog_fill_jited_linfo(fp, addrs); 4ea76e90a97d22 Christophe Leroy 2021-03-22 254 out_addrs: 4ea76e90a97d22 Christophe Leroy 2021-03-22 255 kfree(addrs); 4ea76e90a97d22 Christophe Leroy 2021-03-22 256 kfree(jit_data); 4ea76e90a97d22 Christophe Leroy 2021-03-22 257 fp->aux->jit_data = NULL; 4ea76e90a97d22 Christophe Leroy 2021-03-22 258 } else { 4ea76e90a97d22 Christophe Leroy 2021-03-22 259 jit_data->addrs = addrs; 4ea76e90a97d22 Christophe Leroy 2021-03-22 260 jit_data->ctx = cgctx; 4ea76e90a97d22 Christophe Leroy 2021-03-22 261 jit_data->proglen = proglen; 4ea76e90a97d22 Christophe Leroy 2021-03-22 262 jit_data->image = image; 4ea76e90a97d22 Christophe Leroy 2021-03-22 263 jit_data->header = bpf_hdr; 4ea76e90a97d22 Christophe Leroy 2021-03-22 264 } 4ea76e90a97d22 Christophe Leroy 2021-03-22 265 4ea76e90a97d22 Christophe Leroy 2021-03-22 266 out: 4ea76e90a97d22 Christophe Leroy 2021-03-22 267 if (bpf_blinded) 4ea76e90a97d22 Christophe Leroy 2021-03-22 268 bpf_jit_prog_release_other(fp, fp == org_fp ? tmp_fp : org_fp); 4ea76e90a97d22 Christophe Leroy 2021-03-22 269 4ea76e90a97d22 Christophe Leroy 2021-03-22 270 return fp; 4ea76e90a97d22 Christophe Leroy 2021-03-22 271 } 983bdc0245a29c Ravi Bangoria 2021-10-12 272 :::::: The code at line 250 was first introduced by commit :::::: 4ea76e90a97d22f86adbb10044d29d919e620f2e powerpc/bpf: Move common functions into bpf_jit_comp.c :::::: TO: Christophe Leroy <christophe.leroy(a)csgroup.eu&gt; :::::: CC: Michael Ellerman <mpe(a)ellerman.id.au&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org