binder: undelivered TRANSACTION_ERROR: 29201 binder: 23363:23363 got reply transaction with no transaction stack binder: undelivered TRANSACTION_ERROR: 29201 binder: 23363:23363 transaction failed 29201/-71, size 0-0 line 2763 binder: undelivered TRANSACTION_ERROR: 29201 INFO: task kworker/u4:4:853 blocked for more than 120 seconds. binder: undelivered TRANSACTION_ERROR: 29201 Not tainted 4.17.0-rc1+ #6 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:4 D11512 853 2 0x80000000 Workqueue: events_unbound fsnotify_mark_destroy_workfn binder: undelivered TRANSACTION_ERROR: 29201 Call Trace: context_switch kernel/sched/core.c:2848 [inline] __schedule+0x801/0x1e30 kernel/sched/core.c:3490 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 schedule+0xef/0x430 kernel/sched/core.c:3549 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 schedule_timeout+0x1b5/0x240 kernel/time/timer.c:1777 binder: undelivered TRANSACTION_ERROR: 29201 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x3e7/0x870 kernel/sched/completion.c:136 binder: undelivered TRANSACTION_ERROR: 29201 __synchronize_srcu+0x189/0x240 kernel/rcu/srcutree.c:924 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 synchronize_srcu+0x408/0x54f kernel/rcu/srcutree.c:1002 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 fsnotify_mark_destroy_workfn+0x1aa/0x530 fs/notify/mark.c:759 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: 23369:23369 got reply transaction with no transaction stack binder: 23369:23369 transaction failed 29201/-71, size 0-0 line 2763 binder: 23366:23366 got reply transaction with no transaction stack binder: 23366:23366 transaction failed 29201/-71, size 0-0 line 2763 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: 23379:23379 got reply transaction with no transaction stack binder: 23379:23379 transaction failed 29201/-71, size 0-0 line 2763 binder: undelivered TRANSACTION_ERROR: 29201 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 binder: undelivered TRANSACTION_ERROR: 29201 Showing all locks held in the system: 2 locks held by kworker/u4:4/853: #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:57 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0xaef/0x1b50 kernel/workqueue.c:2116 #1: 00000000b1269673 ((reaper_work).work){+.+.}, at: process_one_work+0xb46/0x1b50 kernel/workqueue.c:2120 2 locks held by khungtaskd/890: #0: 00000000d567328c (rcu_read_lock){....}, at: check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline] #0: 00000000d567328c (rcu_read_lock){....}, at: watchdog+0x1ff/0xf60 kernel/hung_task.c:249 #1: 00000000e997dc08 (tasklist_lock){.+.+}, at: debug_show_all_locks+0xde/0x34a kernel/locking/lockdep.c:4470 2 locks held by getty/4495: #0: 0000000074daf9d2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 000000004453c96f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4496: #0: 00000000f9c39154 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 0000000049c9f89f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4497: #0: 0000000062607460 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 000000009e5ece05 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4498: #0: 000000003d5a0fd5 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 000000002f190677 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4499: #0: 00000000be6d9ce4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000d4f768b6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4500: #0: 0000000088819f44 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000e44bac98 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 2 locks held by getty/4501: #0: 00000000ab21a80f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000a3c3ecab (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x321/0x1cc0 drivers/tty/n_tty.c:2131 1 lock held by syz-executor2/4541: #0: 00000000e997dc08 (tasklist_lock){.+.+}, at: release_task.part.15+0x2b8/0x1b90 kernel/exit.c:197 2 locks held by kworker/u4:0/4556: #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:57 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000009bb0899e ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0xaef/0x1b50 kernel/workqueue.c:2116 #1: 000000003ac762ed (connector_reaper_work){+.+.}, at: process_one_work+0xb46/0x1b50 kernel/workqueue.c:2120 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 890 Comm: khungtaskd Not tainted 4.17.0-rc1+ #6 binder: undelivered TRANSACTION_ERROR: 29201 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 binder: 23380:23380 got reply transaction with no transaction stack nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 binder: 23380:23380 transaction failed 29201/-71, size 0-0 line 2763 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+0xc10/0xf60 kernel/hung_task.c:249 binder: undelivered TRANSACTION_ERROR: 29201 kthread+0x345/0x410 kernel/kthread.c:238 binder: undelivered TRANSACTION_ERROR: 29201 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4552 Comm: kworker/1:0 Not tainted 4.17.0-rc1+ #6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events binder_deferred_func RIP: 0010:__sanitizer_cov_trace_pc+0x1e/0x50 kernel/kcov.c:97 RSP: 0018:ffff8801acd5ec28 EFLAGS: 00000046 RAX: ffff8801a9d38580 RBX: ffffffff8a4995e1 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8751fd0f RDI: ffff8801acd5ed48 RBP: ffff8801acd5ec28 R08: ffff8801a9d38580 R09: fffffbfff14932bc R10: fffffbfff14932bc R11: ffffffff8a4995e0 R12: 00000000000004ce R13: ffff8801acd5ed88 R14: ffffffff87ab5aa5 R15: ffff8801acd5ece0 FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020009ff3 CR3: 00000001ad760000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x137f/0x1b40 lib/vsprintf.c:2358 sprintf+0xa7/0xd0 lib/vsprintf.c:2494 print_time kernel/printk/printk.c:1223 [inline] print_prefix+0x26a/0x3f0 kernel/printk/printk.c:1246 msg_print_text+0xca/0x1c0 kernel/printk/printk.c:1273 console_unlock+0x4f5/0x1100 kernel/printk/printk.c:2369 vprintk_emit+0x6ad/0xdd0 kernel/printk/printk.c:1907 vprintk_default+0x28/0x30 kernel/printk/printk.c:1947 vprintk_func+0x7a/0xe7 kernel/printk/printk_safe.c:379 printk+0x9e/0xba kernel/printk/printk.c:1980 binder_release_work.cold.64+0x42/0xa2 drivers/android/binder.c:4208 binder_thread_release+0x519/0x660 drivers/android/binder.c:4396 binder_deferred_release drivers/android/binder.c:4939 [inline] binder_deferred_func+0x6ce/0x1320 drivers/android/binder.c:5022 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Code: f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 65 48 8b 04 25 c0 ed 01 00 65 8b 15 af bd 88 7e 48 89 e5 81 e2 00 01 1f 00 48 8b 75 08 <75> 2b 8b 90 78 12 00 00 83 fa 02 75 20 48 8b 88 80 12 00 00 8b