FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/entry_compat commit 93c376ad0aeb7b4ad4d4d139324736ec102ef8e2 ("x86/vdso: Remove runtime 32-bit vDSO selection") +-----------------------------------------------------------+------------+------------+ | | be25b32c18 | 93c376ad0a | +-----------------------------------------------------------+------------+------------+ | boot_successes | 54 | 0 | | boot_failures | 0 | 12 | | Kernel_panic-not_syncing:Attempted_to_kill_init!exitcode= | 0 | 12 | +-----------------------------------------------------------+------------+------------+ [ 2.337448] power_supply test_ac: POWER_SUPPLY_NAME=test_ac [ 2.337891] power_supply test_ac: prop ONLINE=1 [ 2.339064] Freeing unused kernel memory: 324K (81ab5000 - 81b06000) [ 2.340283] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 [ 2.340283] [ 2.341018] CPU: 0 PID: 1 Comm: init Not tainted 4.2.0-rc7-00088-g93c376a #1 [ 2.341579] 80034060 92c37e10 8163490b 92c37e28 81632dc6 8190e9a0 92c48000 8190e9a0 [ 2.342275] 80034060 92c37e6c 81047543 818337d8 00000007 00000000 81050195 00000082 [ 2.342974] 00000001 92c48000 80034060 80034000 810502c6 92c37e58 92c37e58 00000007 [ 2.343672] Call Trace: [ 2.343872] [<8163490b>] dump_stack+0x16/0x18 [ 2.344225] [<81632dc6>] panic+0x81/0x19f [ 2.344554] [<81047543>] do_exit+0x8c3/0x8e0 [ 2.344716] [<81050195>] ? __dequeue_signal+0xd5/0x1e0 [ 2.344716] [<810502c6>] ? dequeue_signal+0x26/0x180 [ 2.344716] [<81048688>] do_group_exit+0x28/0xa0 [ 2.344716] [<810536e1>] get_signal+0x241/0x800 [ 2.344716] [<81051b35>] ? force_sig_info+0x75/0xc0 [ 2.344716] [<81002399>] do_signal+0x19/0x900 [ 2.344716] [<8106d76b>] ? sched_clock_cpu+0x2b/0x100 [ 2.344716] [<8106d76b>] ? sched_clock_cpu+0x2b/0x100 [ 2.344716] [<81033d54>] ? mm_fault_error+0xf4/0x140 [ 2.344716] [<81034567>] ? __do_page_fault+0x447/0x460 [ 2.344716] [<8100127f>] prepare_exit_to_usermode+0x9f/0xe0 [ 2.344716] [<81030fe0>] ? kvm_async_pf_task_wake+0x140/0x140 [ 2.344716] [<8163f2fe>] resume_userspace+0x1e/0x30 [ 2.344716] [<81030fe0>] ? kvm_async_pf_task_wake+0x140/0x140 [ 2.344716] Kernel Offset: disabled Elapsed time: 10 Thanks, Ying Huang