bisecting fixing commit since 0cc244011f40280b78fc344d5c2aac5a0c659f77 building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9 testing commit 0cc244011f40280b78fc344d5c2aac5a0c659f77 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 432fa3bd958ff256138d515914edb3fb3cb64b90b46e240f66f955de28910201 run #0: crashed: general protection fault in try_to_wake_up run #1: crashed: general protection fault in try_to_wake_up run #2: crashed: general protection fault in try_to_wake_up run #3: crashed: general protection fault in try_to_wake_up run #4: crashed: general protection fault in try_to_wake_up run #5: crashed: general protection fault in try_to_wake_up run #6: crashed: general protection fault in try_to_wake_up run #7: crashed: general protection fault in try_to_wake_up run #8: crashed: general protection fault in try_to_wake_up run #9: crashed: general protection fault in try_to_wake_up run #10: crashed: general protection fault in try_to_wake_up run #11: crashed: general protection fault in try_to_wake_up run #12: crashed: general protection fault in try_to_wake_up run #13: crashed: general protection fault in try_to_wake_up run #14: crashed: general protection fault in try_to_wake_up run #15: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor993131263" "root@10.128.0.5:./syz-executor993131263"] run #16: OK run #17: OK run #18: OK run #19: OK testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6 testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: f011ad61ab85e31a50ee26323e1c0206f22b30b8fe6f5aa9db6d2ad0ba421a04 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 33m38.760756893s (build: 18m42.565636447s, test: 14m30.495021883s) the crash still happens on HEAD commit msg: Linux 4.14.250 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout