binder_alloc: binder_alloc_mmap_handler: 13550 2000c000-2000e000 already mapped failed -16 binder: 13550:13559 transaction failed 29189/-22, size 0-0 line 2848 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 INFO: task syz-executor7:13537 blocked for more than 120 seconds. Not tainted 4.16.0-rc7+ #281 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor7 D25560 13537 4479 0x20020004 Call Trace: context_switch kernel/sched/core.c:2862 [inline] __schedule+0x8fb/0x1ec0 kernel/sched/core.c:3440 schedule+0xf5/0x430 kernel/sched/core.c:3499 schedule_preempt_disabled+0x10/0x20 kernel/sched/core.c:3557 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0xaad/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 blkdev_reread_part+0x1e/0x40 block/ioctl.c:192 loop_reread_partitions+0x12f/0x1a0 drivers/block/loop.c:619 loop_set_status+0x9bb/0xf60 drivers/block/loop.c:1161 loop_set_status64+0x9d/0x110 drivers/block/loop.c:1271 lo_ioctl+0xd86/0x1b70 drivers/block/loop.c:1381 lo_compat_ioctl+0xab/0x140 drivers/block/loop.c:1556 compat_blkdev_ioctl+0x3ae/0x1840 block/compat_ioctl.c:406 C_SYSC_ioctl fs/compat_ioctl.c:1461 [inline] compat_SyS_ioctl+0x151/0x2a30 fs/compat_ioctl.c:1407 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fdac99 RSP: 002b:00000000f77d609c EFLAGS: 00000286 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 0000000000004c04 RDX: 00000000200001c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 2 locks held by khungtaskd/869: #0: (rcu_read_lock){....}, at: [<000000007ca0c5b8>] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline] #0: (rcu_read_lock){....}, at: [<000000007ca0c5b8>] watchdog+0x1c5/0xd60 kernel/hung_task.c:249 #1: (tasklist_lock){.+.+}, at: [<000000001544b82e>] debug_show_all_locks+0xd3/0x3d0 kernel/locking/lockdep.c:4470 2 locks held by getty/4405: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4406: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4407: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4408: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4409: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4410: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by getty/4411: #0: (&tty->ldisc_sem){++++}, at: [<000000006fc9896a>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000013a698ca>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131 2 locks held by syz-executor7/13537: #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [<0000000064a796fe>] lo_ioctl+0x8b/0x1b70 drivers/block/loop.c:1355 #1: (&bdev->bd_mutex){+.+.}, at: [<00000000dbe7fef7>] blkdev_reread_part+0x1e/0x40 block/ioctl.c:192 2 locks held by syz-executor2/13540: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 #1: (&lo->lo_ctl_mutex#2){+.+.}, at: [<00000000b94f0287>] loop_control_ioctl+0x1a7/0x490 drivers/block/loop.c:1952 2 locks held by syz-executor0/13543: #0: (&bdev->bd_mutex){+.+.}, at: [<0000000086835c15>] __blkdev_get+0x176/0x13b0 fs/block_dev.c:1458 #1: (loop_index_mutex){+.+.}, at: [<00000000a230d1d5>] lo_open+0x1b/0xa0 drivers/block/loop.c:1571 1 lock held by blkid/13547: #0: (&bdev->bd_mutex){+.+.}, at: [<0000000086835c15>] __blkdev_get+0x176/0x13b0 fs/block_dev.c:1458 1 lock held by syz-executor1/13565: #0: (&bdev->bd_mutex){+.+.}, at: [<0000000086835c15>] __blkdev_get+0x176/0x13b0 fs/block_dev.c:1458 1 lock held by syz-executor1/13581: #0: (&bdev->bd_mutex){+.+.}, at: [<0000000086835c15>] __blkdev_get+0x176/0x13b0 fs/block_dev.c:1458 1 lock held by syz-executor6/13596: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13601: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13602: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13610: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13613: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13614: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13619: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 1 lock held by syz-executor6/13620: #0: (loop_index_mutex){+.+.}, at: [<0000000090dbdfbe>] loop_control_ioctl+0x89/0x490 drivers/block/loop.c:1938 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 869 Comm: khungtaskd Not tainted 4.16.0-rc7+ #281 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 nmi_cpu_backtrace+0x1d2/0x210 lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x123/0x180 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_task kernel/hung_task.c:132 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline] watchdog+0x90c/0xd60 kernel/hung_task.c:249 kthread+0x33c/0x400 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.16.0-rc7+ #281 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:trace_softirq_raise include/trace/events/irq.h:156 [inline] RIP: 0010:__raise_softirq_irqoff kernel/softirq.c:443 [inline] RIP: 0010:raise_softirq_irqoff kernel/softirq.c:417 [inline] RIP: 0010:raise_softirq+0x350/0x490 kernel/softirq.c:437 RSP: 0018:ffff8801db207938 EFLAGS: 00000086 RAX: ffffed003b640f35 RBX: 1ffff1003b640f29 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87a2da40 RBP: ffff8801db207a10 R08: ffff88021fff801c R09: ffff88021fff8008 R10: ffff88021fff8010 R11: ffff88021fff801d R12: ffff8801db2237c0 R13: 0000000000000001 R14: ffff8801db2079e8 R15: 0000000000000082 FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000007a22003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: run_local_timers+0x147/0x1b0 kernel/time/timer.c:1714 update_process_times+0x28/0x60 kernel/time/timer.c:1635 tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:162 tick_sched_timer+0x42/0x120 kernel/time/tick-sched.c:1194 __run_hrtimer kernel/time/hrtimer.c:1349 [inline] __hrtimer_run_queues+0x39c/0xec0 kernel/time/hrtimer.c:1411 hrtimer_interrupt+0x2a5/0x6f0 kernel/time/hrtimer.c:1469 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x14a/0x700 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:857 RIP: 0010:native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54 RSP: 0018:ffffffff87a07c38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff12 RAX: dffffc0000000000 RBX: 1ffffffff0f40f8a RCX: 0000000000000000 RDX: 1ffffffff0f59580 RSI: 0000000000000001 RDI: ffffffff87acac00 RBP: ffffffff87a07c38 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff87a07cf0 R14: ffffffff883b4820 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0xbf/0x430 arch/x86/kernel/process.c:354 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:345 default_idle_call+0x36/0x90 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x24a/0x3b0 kernel/sched/idle.c:246 cpu_startup_entry+0x104/0x120 kernel/sched/idle.c:351 rest_init+0xed/0xf0 init/main.c:437 start_kernel+0x7f1/0x819 init/main.c:717 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:239 Code: e9 80 fe ff ff 65 ff 05 8f 34 be 7e 49 8d 46 c0 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 48 01 d0 c6 00 00 48 8b 15 a8 fb f4 06 <49> 89 56 c0 c6 00 f8 e8 04 45 1a 00 85 c0 74 09 80 3d 33 b0 f4