binder: 22031:22031 transaction failed 29189/-22, size 24-8 line 2852 binder: 22036:22036 transaction failed 29189/-22, size 24-8 line 2852 binder: 22035:22035 transaction failed 29189/-22, size 24-8 line 2852 binder: undelivered TRANSACTION_ERROR: 29189 binder: 22038:22038 transaction failed 29189/-22, size 24-8 line 2852 INFO: task kworker/u4:1:23 blocked for more than 140 seconds. Not tainted 4.18.0-rc5+ #59 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:1 D12776 23 2 0x80000000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3501 schedule+0xfb/0x450 kernel/sched/core.c:3545 schedule_timeout+0x1cc/0x260 kernel/time/timer.c:1777 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+0x430/0x8d0 kernel/sched/completion.c:136 binder: 22050:22050 transaction failed 29189/-22, size 24-8 line 2852 binder: 22047:22047 transaction failed 29189/-22, size 24-8 line 2852 __synchronize_srcu+0x189/0x240 kernel/rcu/srcutree.c:928 binder: 22051:22051 transaction failed 29189/-22, size 24-8 line 2852 synchronize_srcu_expedited kernel/rcu/srcutree.c:953 [inline] synchronize_srcu+0x335/0x56f kernel/rcu/srcutree.c:1004 binder: 22052:22052 transaction failed 29189/-22, size 24-8 line 2852 fsnotify_connector_destroy_workfn+0x44/0xa0 fs/notify/mark.c:156 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 INFO: task kworker/u4:3:4719 blocked for more than 140 seconds. Not tainted 4.18.0-rc5+ #59 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:3 D23896 4719 2 0x80000000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x87c/0x1ed0 kernel/sched/core.c:3501 binder: 22043:22043 transaction failed 29189/-22, size 24-8 line 2852 binder: 22041:22041 transaction failed 29189/-22, size 24-8 line 2852 schedule+0xfb/0x450 kernel/sched/core.c:3545 binder: 22045:22045 transaction failed 29189/-22, size 24-8 line 2852 binder: 22055:22055 transaction failed 29189/-22, size 24-8 line 2852 schedule_timeout+0x1cc/0x260 kernel/time/timer.c:1777 binder: 22056:22056 transaction failed 29189/-22, size 24-8 line 2852 binder: 22058:22058 transaction failed 29189/-22, size 24-8 line 2852 binder: 22059:22059 transaction failed 29189/-22, size 24-8 line 2852 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+0x430/0x8d0 kernel/sched/completion.c:136 binder: 22061:22061 transaction failed 29189/-22, size 24-8 line 2852 binder: 22062:22062 transaction failed 29189/-22, size 24-8 line 2852 binder: 22046:22046 transaction failed 29189/-22, size 24-8 line 2852 binder: 22066:22066 transaction failed 29189/-22, size 24-8 line 2852 binder: 22071:22071 transaction failed 29189/-22, size 24-8 line 2852 __synchronize_srcu+0x189/0x240 kernel/rcu/srcutree.c:928 binder: 22073:22073 transaction failed 29189/-22, size 24-8 line 2852 binder: 22074:22074 transaction failed 29189/-22, size 24-8 line 2852 synchronize_srcu+0x41c/0x56f kernel/rcu/srcutree.c:1006 binder: 22075:22075 transaction failed 29189/-22, size 24-8 line 2852 binder: 22076:22076 transaction failed 29189/-22, size 24-8 line 2852 fsnotify_mark_destroy_workfn+0x1be/0x550 fs/notify/mark.c:765 binder: 22068:22068 transaction failed 29189/-22, size 24-8 line 2852 binder: 22063:22063 transaction failed 29189/-22, size 24-8 line 2852 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153 binder: 22082:22082 transaction failed 29189/-22, size 24-8 line 2852 binder: 22083:22083 transaction failed 29189/-22, size 24-8 line 2852 binder: 22084:22084 transaction failed 29189/-22, size 24-8 line 2852 worker_thread+0x189/0x13c0 kernel/workqueue.c:2296 binder: 22086:22086 transaction failed 29189/-22, size 24-8 line 2852 binder: 22088:22088 transaction failed 29189/-22, size 24-8 line 2852 binder: 22070:22070 transaction failed 29189/-22, size 24-8 line 2852 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Showing all locks held in the system: 2 locks held by kworker/u4:1/23: binder: 22090:22090 transaction failed 29189/-22, size 24-8 line 2852 #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0xb44/0x1ba0 kernel/workqueue.c:2124 binder: 22092:22092 transaction failed 29189/-22, size 24-8 line 2852 #1: 0000000015ef4796 (connector_reaper_work){+.+.}, at: process_one_work+0xb9b/0x1ba0 kernel/workqueue.c:2128 1 lock held by khungtaskd/901: binder: 22093:22093 transaction failed 29189/-22, size 24-8 line 2852 #0: 000000005e000ed5 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x428 kernel/locking/lockdep.c:4461 1 lock held by rsyslogd/4434: 2 locks held by getty/4524: #0: 00000000aa8fb2b0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000cc19baa3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4525: binder: 22094:22094 transaction failed 29189/-22, size 24-8 line 2852 #0: 00000000b7c09720 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 0000000067e40c63 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4526: binder: 22096:22096 transaction failed 29189/-22, size 24-8 line 2852 #0: 000000009e5c0c3c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000e08713cb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4527: #0: 000000004db11f82 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 binder: 22079:22079 transaction failed 29189/-22, size 24-8 line 2852 #1: 000000009824a78a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 binder: 22097:22097 transaction failed 29189/-22, size 24-8 line 2852 2 locks held by getty/4528: #0: 00000000c9a65926 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 binder: 22100:22100 transaction failed 29189/-22, size 24-8 line 2852 #1: 00000000121acc51 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 binder: 22099:22099 transaction failed 29189/-22, size 24-8 line 2852 2 locks held by getty/4529: #0: 00000000426c3083 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000a71ca17b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 2 locks held by getty/4530: #0: 00000000249bb735 binder: 22080:22080 transaction failed 29189/-22, size 24-8 line 2852 ( binder: 22089:22089 transaction failed 29189/-22, size 24-8 line 2852 &tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: 00000000d6ef095f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 drivers/tty/n_tty.c:2140 1 lock held by syz-executor4/4570: 1 lock held by syz-executor3/4582: 2 locks held by kworker/u4:3/4719: #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 000000005cc4ca13 ((wq_completion)"events_unbound"){+.+.}, at: process_one_work+0xb44/0x1ba0 kernel/workqueue.c:2124 #1: 000000003cbf80d3 ((reaper_work).work){+.+.}, at: process_one_work+0xb9b/0x1ba0 kernel/workqueue.c:2128 2 locks held by kworker/0:0/4730: 1 lock held by udevd/22064: 1 lock held by udevd/22102: 1 lock held by udevd/22103: 1 lock held by syz-executor7/22104: binder: 22105:22105 transaction failed 29189/-22, size 24-8 line 2852 1 lock held by syz-executor2/22105: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 901 Comm: khungtaskd Not tainted 4.18.0-rc5+ #59 binder: 22104:22104 transaction failed 29189/-22, size 24-8 line 2852 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+0x1c9/0x2b4 lib/dump_stack.c:113 binder: 22107:22107 transaction failed 29189/-22, size 24-8 line 2852 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103 binder: 22108:22108 transaction failed 29189/-22, size 24-8 line 2852 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: 22109:22109 transaction failed 29189/-22, size 24-8 line 2852 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x9c4/0xf80 kernel/hung_task.c:252 binder: 22111:22111 transaction failed 29189/-22, size 24-8 line 2852 binder: 22112:22112 transaction failed 29189/-22, size 24-8 line 2852 binder: 22113:22113 transaction failed 29189/-22, size 24-8 line 2852 kthread+0x345/0x410 kernel/kthread.c:246 binder: 22114:22114 transaction failed 29189/-22, size 24-8 line 2852 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 binder: 22116:22116 transaction failed 29189/-22, size 24-8 line 2852 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 22113 Comm: syz-executor7 Not tainted 4.18.0-rc5+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:335 [inline] RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:332 [inline] RIP: 0010:trace_lock_acquire include/trace/events/lock.h:13 [inline] RIP: 0010:lock_acquire+0x19e/0x540 kernel/locking/lockdep.c:3923 Code: 7c 08 84 c9 0f 85 c6 02 00 00 c7 82 34 08 00 00 01 00 00 00 0f 1f 44 00 00 65 8b 05 0c 68 a2 7e 89 c0 48 0f a3 05 32 b2 3f 08 <0f> 82 37 02 00 00 4c 8b 8d 20 ff ff ff 6a 00 44 89 e2 45 89 f0 6a RSP: 0018:ffff8801a6895f98 EFLAGS: 00000047 RAX: 0000000000000001 RBX: 1ffff10034d12bf8 RCX: 0000000000000000 RDX: ffff8801a90a04c0 RSI: 0000000000000000 RDI: ffff8801a90a0cf4 RBP: ffff8801a6896088 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000ffae361c CR3: 0000000008e6a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 __debug_check_no_obj_freed lib/debugobjects.c:774 [inline] debug_check_no_obj_freed+0x16c/0x595 lib/debugobjects.c:815 free_pages_prepare mm/page_alloc.c:1027 [inline] __free_pages_ok+0x4d5/0x2a60 mm/page_alloc.c:1245 free_compound_page+0x5c/0x70 mm/page_alloc.c:566 free_transhuge_page+0x2ec/0x460 mm/huge_memory.c:2729 __put_compound_page+0x96/0xe0 mm/swap.c:96 release_pages+0x782/0x14e0 mm/swap.c:760 free_pages_and_swap_cache+0x391/0x510 mm/swap_state.c:319 tlb_flush_mmu_free+0xc3/0x160 mm/memory.c:259 zap_pte_range mm/memory.c:1400 [inline] zap_pmd_range mm/memory.c:1437 [inline] zap_pud_range mm/memory.c:1466 [inline] zap_p4d_range mm/memory.c:1487 [inline] unmap_page_range+0x1a45/0x2220 mm/memory.c:1508 unmap_single_vma+0x1a0/0x310 mm/memory.c:1553 unmap_vmas+0x120/0x1f0 mm/memory.c:1583 exit_mmap+0x2c2/0x5b0 mm/mmap.c:3100 __mmput kernel/fork.c:970 [inline] mmput+0x265/0x620 kernel/fork.c:991 exit_mm kernel/exit.c:544 [inline] do_exit+0xea9/0x2750 kernel/exit.c:852 do_group_exit+0x177/0x440 kernel/exit.c:968 __do_sys_exit_group kernel/exit.c:979 [inline] __se_sys_exit_group kernel/exit.c:977 [inline] __ia32_sys_exit_group+0x3e/0x50 kernel/exit.c:977 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f75cb9 Code: Bad RIP value. RSP: 002b:00000000ffea6bec EFLAGS: 00000286 ORIG_RAX: 00000000000000fc RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000ffea7a9c RDX: 00000000ffea72d8 RSI: 000000000000001e RDI: 0000000008150370 RBP: 0000000008054a0b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.738 msecs