Hi Andrew, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: dcf1b51d6b2ac5da234ae6883ed0e9422c339588 commit: aec0fae62e47050019474936248a311a0ab08705 [7952/12404] KVM: arm64: Log source when panicking from nVHE hyp config: arm64-randconfig-r004-20210413 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout aec0fae62e47050019474936248a311a0ab08705 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arch/arm64/kvm/handle_exit.c:177:21: warning: initialized field overwritten [-Woverride-init] 177 | [ESR_ELx_EC_WFx] = kvm_handle_wfx, | ^~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:177:21: note: (near initialization for 'arm_exit_handlers[1]') arch/arm64/kvm/handle_exit.c:178:25: warning: initialized field overwritten [-Woverride-init] 178 | [ESR_ELx_EC_CP15_32] = kvm_handle_cp15_32, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:178:25: note: (near initialization for 'arm_exit_handlers[3]') arch/arm64/kvm/handle_exit.c:179:25: warning: initialized field overwritten [-Woverride-init] 179 | [ESR_ELx_EC_CP15_64] = kvm_handle_cp15_64, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:179:25: note: (near initialization for 'arm_exit_handlers[4]') arch/arm64/kvm/handle_exit.c:180:25: warning: initialized field overwritten [-Woverride-init] 180 | [ESR_ELx_EC_CP14_MR] = kvm_handle_cp14_32, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:180:25: note: (near initialization for 'arm_exit_handlers[5]') arch/arm64/kvm/handle_exit.c:181:25: warning: initialized field overwritten [-Woverride-init] 181 | [ESR_ELx_EC_CP14_LS] = kvm_handle_cp14_load_store, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:181:25: note: (near initialization for 'arm_exit_handlers[6]') arch/arm64/kvm/handle_exit.c:182:25: warning: initialized field overwritten [-Woverride-init] 182 | [ESR_ELx_EC_CP14_64] = kvm_handle_cp14_64, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:182:25: note: (near initialization for 'arm_exit_handlers[12]') arch/arm64/kvm/handle_exit.c:183:23: warning: initialized field overwritten [-Woverride-init] 183 | [ESR_ELx_EC_HVC32] = handle_hvc, | ^~~~~~~~~~ arch/arm64/kvm/handle_exit.c:183:23: note: (near initialization for 'arm_exit_handlers[18]') arch/arm64/kvm/handle_exit.c:184:23: warning: initialized field overwritten [-Woverride-init] 184 | [ESR_ELx_EC_SMC32] = handle_smc, | ^~~~~~~~~~ arch/arm64/kvm/handle_exit.c:184:23: note: (near initialization for 'arm_exit_handlers[19]') arch/arm64/kvm/handle_exit.c:185:23: warning: initialized field overwritten [-Woverride-init] 185 | [ESR_ELx_EC_HVC64] = handle_hvc, | ^~~~~~~~~~ arch/arm64/kvm/handle_exit.c:185:23: note: (near initialization for 'arm_exit_handlers[22]') arch/arm64/kvm/handle_exit.c:186:23: warning: initialized field overwritten [-Woverride-init] 186 | [ESR_ELx_EC_SMC64] = handle_smc, | ^~~~~~~~~~ arch/arm64/kvm/handle_exit.c:186:23: note: (near initialization for 'arm_exit_handlers[23]') arch/arm64/kvm/handle_exit.c:187:23: warning: initialized field overwritten [-Woverride-init] 187 | [ESR_ELx_EC_SYS64] = kvm_handle_sys_reg, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:187:23: note: (near initialization for 'arm_exit_handlers[24]') arch/arm64/kvm/handle_exit.c:188:21: warning: initialized field overwritten [-Woverride-init] 188 | [ESR_ELx_EC_SVE] = handle_sve, | ^~~~~~~~~~ arch/arm64/kvm/handle_exit.c:188:21: note: (near initialization for 'arm_exit_handlers[25]') arch/arm64/kvm/handle_exit.c:189:26: warning: initialized field overwritten [-Woverride-init] 189 | [ESR_ELx_EC_IABT_LOW] = kvm_handle_guest_abort, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:189:26: note: (near initialization for 'arm_exit_handlers[32]') arch/arm64/kvm/handle_exit.c:190:26: warning: initialized field overwritten [-Woverride-init] 190 | [ESR_ELx_EC_DABT_LOW] = kvm_handle_guest_abort, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:190:26: note: (near initialization for 'arm_exit_handlers[36]') arch/arm64/kvm/handle_exit.c:191:28: warning: initialized field overwritten [-Woverride-init] 191 | [ESR_ELx_EC_SOFTSTP_LOW]= kvm_handle_guest_debug, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:191:28: note: (near initialization for 'arm_exit_handlers[50]') arch/arm64/kvm/handle_exit.c:192:28: warning: initialized field overwritten [-Woverride-init] 192 | [ESR_ELx_EC_WATCHPT_LOW]= kvm_handle_guest_debug, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:192:28: note: (near initialization for 'arm_exit_handlers[52]') arch/arm64/kvm/handle_exit.c:193:28: warning: initialized field overwritten [-Woverride-init] 193 | [ESR_ELx_EC_BREAKPT_LOW]= kvm_handle_guest_debug, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:193:28: note: (near initialization for 'arm_exit_handlers[48]') arch/arm64/kvm/handle_exit.c:194:24: warning: initialized field overwritten [-Woverride-init] 194 | [ESR_ELx_EC_BKPT32] = kvm_handle_guest_debug, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:194:24: note: (near initialization for 'arm_exit_handlers[56]') arch/arm64/kvm/handle_exit.c:195:23: warning: initialized field overwritten [-Woverride-init] 195 | [ESR_ELx_EC_BRK64] = kvm_handle_guest_debug, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:195:23: note: (near initialization for 'arm_exit_handlers[60]') arch/arm64/kvm/handle_exit.c:196:26: warning: initialized field overwritten [-Woverride-init] 196 | [ESR_ELx_EC_FP_ASIMD] = handle_no_fpsimd, | ^~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:196:26: note: (near initialization for 'arm_exit_handlers[7]') arch/arm64/kvm/handle_exit.c:197:21: warning: initialized field overwritten [-Woverride-init] 197 | [ESR_ELx_EC_PAC] = kvm_handle_ptrauth, | ^~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c:197:21: note: (near initialization for 'arm_exit_handlers[9]') arch/arm64/kvm/handle_exit.c:295:24: warning: no previous prototype for 'nvhe_hyp_panic_handler' [-Wmissing-prototypes] 295 | void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr, u64 elr, | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/handle_exit.c: In function 'nvhe_hyp_panic_handler': 318 | bug_get_file_line(bug, &file, &line); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/bug_get_file_line +318 arch/arm64/kvm/handle_exit.c 294 295 void __noreturn __cold nvhe_hyp_panic_handler(u64 esr, u64 spsr, u64 elr, 296 u64 par, uintptr_t vcpu, 297 u64 far, u64 hpfar) { 298 u64 elr_in_kimg = __phys_to_kimg(__hyp_pa(elr)); 299 u64 hyp_offset = elr_in_kimg - kaslr_offset() - elr; 300 u64 mode = spsr & PSR_MODE_MASK; 301 302 /* 303 * The nVHE hyp symbols are not included by kallsyms to avoid issues 304 * with aliasing. That means that the symbols cannot be printed with the 305 * "%pS" format specifier, so fall back to the vmlinux address if 306 * there's no better option. 307 */ 308 if (mode != PSR_MODE_EL2t && mode != PSR_MODE_EL2h) { 309 kvm_err("Invalid host exception to nVHE hyp!\n"); 310 } else if (ESR_ELx_EC(esr) == ESR_ELx_EC_BRK64 && 311 (esr & ESR_ELx_BRK64_ISS_COMMENT_MASK) == BUG_BRK_IMM) { 312 struct bug_entry *bug = find_bug(elr_in_kimg); 313 const char *file = NULL; 314 unsigned int line = 0; 315 316 /* All hyp bugs, including warnings, are treated as fatal. */ 317 if (bug) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org