binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 binder: send failed reply for transaction 22736, target dead binder: send failed reply for transaction 22740, target dead INFO: task init:19341 blocked for more than 140 seconds. Not tainted 4.4.174+ #4 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D ffff88008c437718 29280 19341 1 0x00000000 ffff88008c437718 ffff88008d7697c0 5982dbfbab4635dc ffff88008d7697c0 0000000000000000 ffff88008d76a000 ffff8801db71f180 ffff8801db71f1a8 ffff8801db71e898 ffff8801d8e74740 ffff88008d7697c0 ffffed0011886001 Call Trace: [] schedule+0x99/0x1d0 kernel/sched/core.c:3355 [] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3388 [] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [] mutex_lock_nested+0x3c2/0xb80 kernel/locking/mutex.c:621 [] tty_open+0x56a/0xf50 drivers/tty/tty_io.c:2067 [] chrdev_open+0x230/0x630 fs/char_dev.c:388 [] do_dentry_open+0x38f/0xbd0 fs/open.c:749 [] vfs_open+0x10b/0x210 fs/open.c:862 [] do_last fs/namei.c:3269 [inline] [] path_openat+0x136f/0x4470 fs/namei.c:3406 [] do_filp_open+0x1a1/0x270 fs/namei.c:3440 [] do_sys_open+0x2f8/0x600 fs/open.c:1038 [] SYSC_open fs/open.c:1056 [inline] [] SyS_open+0x2d/0x40 fs/open.c:1051 [] entry_SYSCALL_64_fastpath+0x1e/0x9a 1 lock held by init/19341: #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x56a/0xf50 drivers/tty/tty_io.c:2067 Sending NMI to all CPUs: NMI backtrace for cpu 0 CPU: 0 PID: 2122 Comm: syz-executor.2 Not tainted 4.4.174+ #4 task: ffff8801d8b617c0 task.stack: ffff8800a6cf0000 RIP: 0010:[] [] __sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:96 RSP: 0018:ffff8800a6cf79c8 EFLAGS: 00000282 RAX: 80000000ab096007 RBX: 80000000ab096007 RCX: 1ffff10010575546 RDX: 0000000000000000 RSI: ffffffff814320ac RDI: 80000000ab096007 RBP: ffff8800a6cf79c8 R08: 0000000000000003 R09: ffff8801d8b62120 R10: ffffffff83a3bfd0 R11: 0000000000000000 R12: 1ffff10014d9ef3e R13: 80000000ab096007 R14: ffff8800a6cf7a50 R15: 0000000000000000 FS: 0000000001dd8940(0063) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001b8d458 CR3: 00000000b7d75000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8800a6cf7a78 ffffffff814320f1 00007fca23947000 ffff8801d856eb40 80000000ab096007 0000000041b58ab3 ffffffff82c5c1dc ffffffff81432030 0000000041b58ab3 80000000ab096007 ffffffff810a2070 0000000000000246 Call Trace: [] __pte_needs_invert arch/x86/include/asm/pgtable-invert.h:18 [inline] [] protnone_mask arch/x86/include/asm/pgtable-invert.h:24 [inline] [] pte_pfn arch/x86/include/asm/pgtable.h:158 [inline] [] vm_normal_page+0xc1/0x300 mm/memory.c:744 [] copy_one_pte mm/memory.c:904 [inline] [] copy_pte_range mm/memory.c:958 [inline] [] copy_pmd_range mm/memory.c:1008 [inline] [] copy_pud_range mm/memory.c:1030 [inline] [] copy_page_range+0xa8d/0x1530 mm/memory.c:1092 [] dup_mmap kernel/fork.c:517 [inline] [] dup_mm kernel/fork.c:985 [inline] [] copy_mm kernel/fork.c:1039 [inline] [] copy_process+0x437f/0x68a0 kernel/fork.c:1519 [] _do_fork+0x14e/0xdc0 kernel/fork.c:1806 [] SYSC_clone kernel/fork.c:1917 [inline] [] SyS_clone+0x37/0x50 kernel/fork.c:1911 [] tracesys+0x88/0x8d Code: 17 00 48 8b 55 c8 e9 d2 fe ff ff 48 89 df e8 e4 b8 17 00 e9 ac fe ff ff 4c 89 f7 e8 d7 b8 17 00 e9 42 fe ff ff 66 90 55 48 89 e5 <48> 8b 75 08 65 48 8b 04 25 80 67 01 00 65 8b 15 08 d1 d0 7e 81 NMI backtrace for cpu 1 CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #4 task: ffff8801da6c4740 task.stack: ffff8801d9ed8000 RIP: 0010:[] [] _flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:62 [inline] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 arch/x86/kernel/apic/apic_flat_64.c:69 RSP: 0018:ffff8801d9edfc88 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 RBP: ffff8801d9edfcb8 R08: 0000000000000018 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000174e978 CR3: 00000001c5d17000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Stack: 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 000000000001b6c0 0000000000000008 ffff8801d9edfcd8 ffffffff81092bee 0000000000000008 ffffffff82924260 ffff8801d9edfd30 ffffffff81ab8252 Call Trace: [] nmi_raise_cpu_backtrace+0x5e/0x80 arch/x86/kernel/apic/hw_nmi.c:33 [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae lib/nmi_backtrace.c:85 [] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 [] trigger_all_cpu_backtrace include/linux/nmi.h:44 [inline] [] check_hung_task kernel/hung_task.c:125 [inline] [] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [] watchdog.cold+0xd3/0xee kernel/hung_task.c:238 [] kthread+0x273/0x310 kernel/kthread.c:211 [] ret_from_fork+0x55/0x80 arch/x86/entry/entry_64.S:537 Code: 00 c3 5f ff 80 e6 10 75 e1 41 c1 e5 18 44 89 2c 25 10 c3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 c3 5f ff <41> f7 c4 00 02 00 00 75 1e 4c 89 e7 57 9d 0f 1f 44 00 00 e8 f1