binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 INFO: task syz-executor1:18260 blocked for more than 120 seconds. Not tainted 4.15.0-rc3-next-20171214+ #67 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D 0 18260 3347 0x00000004 Call Trace: context_switch kernel/sched/core.c:2800 [inline] __schedule+0x30b/0xaf0 kernel/sched/core.c:3376 schedule+0x2e/0x90 kernel/sched/core.c:3435 io_schedule+0x11/0x40 kernel/sched/core.c:5043 wait_on_page_bit_common mm/filemap.c:1099 [inline] wait_on_page_bit mm/filemap.c:1132 [inline] wait_on_page_locked include/linux/pagemap.h:530 [inline] __lock_page_or_retry+0x391/0x3e0 mm/filemap.c:1310 lock_page_or_retry include/linux/pagemap.h:510 [inline] filemap_fault+0x61c/0xa70 mm/filemap.c:2532 __do_fault+0x23/0xa4 mm/memory.c:3206 do_read_fault mm/memory.c:3616 [inline] do_fault mm/memory.c:3716 [inline] handle_pte_fault mm/memory.c:3947 [inline] __handle_mm_fault+0x10b5/0x1930 mm/memory.c:4071 handle_mm_fault+0x215/0x450 mm/memory.c:4108 faultin_page mm/gup.c:502 [inline] __get_user_pages+0x1ff/0x980 mm/gup.c:699 populate_vma_page_range+0xa1/0xb0 mm/gup.c:1200 __mm_populate+0xcc/0x190 mm/gup.c:1250 mm_populate include/linux/mm.h:2233 [inline] vm_mmap_pgoff+0x103/0x110 mm/util.c:338 SYSC_mmap_pgoff mm/mmap.c:1533 [inline] SyS_mmap_pgoff+0x215/0x2c0 mm/mmap.c:1491 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f349bb1dc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000003 RSI: 0000000000004000 RDI: 00000000207c3000 RBP: 000000000000039b R08: 0000000000000013 R09: 0000000000000000 R10: 0000000000002851 R11: 0000000000000212 R12: 00000000006f3728 R13: 00000000ffffffff R14: 00007f349bb1e6d4 R15: 0000000000000000 Showing all locks held in the system: 2 locks held by khungtaskd/673: #0: (rcu_read_lock){....}, at: [<00000000dddbfb7a>] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline] #0: (rcu_read_lock){....}, at: [<00000000dddbfb7a>] watchdog+0xbf/0x750 kernel/hung_task.c:249 #1: (tasklist_lock){.+.+}, at: [<00000000a5987d6e>] debug_show_all_locks+0x3d/0x1a0 kernel/locking/lockdep.c:4464 1 lock held by rsyslogd/2969: #0: (&f->f_pos_lock){+.+.}, at: [<000000001d38c89d>] __fdget_pos+0x5b/0x70 fs/file.c:765 2 locks held by getty/3091: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3092: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3093: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3094: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3095: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3096: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 2 locks held by getty/3097: #0: (&tty->ldisc_sem){++++}, at: [<000000005aa2c7c9>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365 #1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000c57d0407>] n_tty_read+0xce/0xa40 drivers/tty/n_tty.c:2131 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 673 Comm: khungtaskd Not tainted 4.15.0-rc3-next-20171214+ #67 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+0xe9/0x14b lib/dump_stack.c:53 nmi_cpu_backtrace+0x149/0x150 lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0x101/0x150 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+0x562/0x750 kernel/hung_task.c:249 kthread+0x149/0x170 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.15.0-rc3-next-20171214+ #67 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x0/0x220 include/trace/events/lock.h:58 RSP: 0018:ffff88021fd03f38 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000093 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83fad048 RBP: ffff88021fd03f88 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff83fad048 R13: ffffffff8304f960 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4667fd9000 CR3: 0000000211632000 CR4: 00000000001406e0 Call Trace: tick_nohz_irq_enter kernel/time/tick-sched.c:1102 [inline] tick_irq_enter+0x40/0x1a0 kernel/time/tick-sched.c:1123 irq_enter+0x59/0x60 kernel/softirq.c:346 scheduler_ipi+0xa2/0x130 kernel/sched/core.c:1794 smp_reschedule_interrupt+0x26/0x240 arch/x86/kernel/smp.c:277 reschedule_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:944 RIP: 0010:native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54 RSP: 0018:ffffc90000cc7e98 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff02 RAX: ffff8802169b2300 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff8802169b2300 RSI: 0000000000000001 RDI: ffff8802169b2300 RBP: ffffc90000cc7e98 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff8304f960 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:93 [inline] default_idle+0x2e/0x1a0 arch/x86/kernel/process.c:354 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:345 default_idle_call+0x1e/0x40 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x17e/0x220 kernel/sched/idle.c:246 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:351 start_secondary+0x139/0x180 arch/x86/kernel/smpboot.c:276 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 Code: c2 f8 ea e2 82 be 3f 00 00 00 48 c7 c7 32 ca e4 82 c6 05 6f d5 f8 01 01 e8 fe cc ff ff e9 01 ff ff ff 66 0f 1f 84 00 00 00 00 00 <55> 65 4c 8b 1c 25 c0 2d 01 00 48 89 e5 41 57 41 56 41 55 41 54