bisecting fixing commit since c2131f7e73c9e9365613e323d65c7b9e5b910f56 building syzkaller on 032639db52e37f547ea03f03fce37eb8568eb482 testing commit c2131f7e73c9e9365613e323d65c7b9e5b910f56 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1 kernel signature: 147ad25c24cdcf8eacf6ca19cb474705f7465693a60b38257da1dd9f439d627f all runs: crashed: WARNING in dlfb_submit_urb/usb_submit_urb testing current HEAD 9e9fb7655ed585da8f468e29221f0ba194a5f613 testing commit 9e9fb7655ed585da8f468e29221f0ba194a5f613 arch/x86/kernel/setup.c:916:6: error: implicit declaration of function 'acpi_mps_check' [-Werror=implicit-function-declaration] arch/x86/kernel/setup.c:1110:2: error: implicit declaration of function 'acpi_table_upgrade' [-Werror=implicit-function-declaration] arch/x86/kernel/setup.c:1112:2: error: implicit declaration of function 'acpi_boot_table_init' [-Werror=implicit-function-declaration] arch/x86/kernel/setup.c:1120:2: error: implicit declaration of function 'early_acpi_boot_init'; did you mean 'early_cpu_init'? [-Werror=implicit-function-declaration] arch/x86/kernel/setup.c:1162:2: error: implicit declaration of function 'acpi_boot_init' [-Werror=implicit-function-declaration] revisions tested: 1, total time: 18m25.846736274s (build: 13m55.052710313s, test: 3m43.063325425s) bisection is inconclusive, the first good commit could be any of: c2131f7e73c9e9365613e323d65c7b9e5b910f56 9e9fb7655ed585da8f468e29221f0ba194a5f613