binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29189
INFO: task syz-executor1:16906 blocked for more than 120 seconds.
      Not tainted 4.9.93-geba1ffe #3
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor1   D27880 16906   3842 0x00000004
 ffff8801d9108000 ffff8801b8c19f80 ffff8801d8ede4c0 ffff8801ba35e000
 ffff8801db221b98 ffff8801cbd07170 ffffffff838c4a7d 0000000041b58ab3
 ffffffff841a4608 ffffffff81233ca0 0000000000000000 ffff8801db222468
Call Trace:
 [<ffffffff838c607f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3556
 [<ffffffff838d2491>] schedule_timeout+0x861/0xf70 kernel/time/timer.c:1768
 [<ffffffff838c425a>] io_schedule_timeout+0x1ba/0x390 kernel/sched/core.c:5178
 [<ffffffff838c74c9>] io_schedule include/linux/sched.h:460 [inline]
 [<ffffffff838c74c9>] bit_wait_io+0x19/0xa0 kernel/sched/wait.c:582
 [<ffffffff838c6d6e>] __wait_on_bit_lock+0xce/0x1c0 kernel/sched/wait.c:421
 [<ffffffff8143246f>] __lock_page+0xff/0x160 mm/filemap.c:934
 [<ffffffff8146832b>] lock_page include/linux/pagemap.h:454 [inline]
 [<ffffffff8146832b>] invalidate_inode_pages2_range+0x41b/0xa10 mm/truncate.c:614
 [<ffffffff8143b1fa>] generic_file_direct_write+0x3fa/0x510 mm/filemap.c:2629
 [<ffffffff8143b52f>] __generic_file_write_iter+0x21f/0x540 mm/filemap.c:2823
 [<ffffffff81630cc7>] blkdev_write_iter+0x1b7/0x370 fs/block_dev.c:1718
 [<ffffffff8156df50>] vfs_iter_write+0x2e0/0x460 fs/read_write.c:390
 [<ffffffff81614cfb>] iter_file_splice_write+0x5fb/0xb30 fs/splice.c:768
 [<ffffffff8160fd68>] do_splice_from fs/splice.c:870 [inline]
 [<ffffffff8160fd68>] direct_splice_actor+0x128/0x190 fs/splice.c:1037
 [<ffffffff816110b1>] splice_direct_to_actor+0x2c1/0x7e0 fs/splice.c:992
 [<ffffffff81611773>] do_splice_direct+0x1a3/0x270 fs/splice.c:1080
 [<ffffffff81572e20>] do_sendfile+0x4f0/0xc60 fs/read_write.c:1393
 [<ffffffff81574ea1>] SYSC_sendfile64 fs/read_write.c:1448 [inline]
 [<ffffffff81574ea1>] SyS_sendfile64+0xd1/0x160 fs/read_write.c:1440
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d5953>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/515:
 #0:  (rcu_read_lock){......}, at: [<ffffffff813643fc>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff813643fc>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81423bb0>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
1 lock held by rsyslogd/3650:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff815d562c>] __fdget_pos+0xac/0xd0 fs/file.c:781
2 locks held by getty/3747:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff838d3b22>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+.+.}, at: [<ffffffff82007e42>] n_tty_read+0x202/0x16b0 drivers/tty/n_tty.c:2133
1 lock held by blkid/14684:
 #0:  (&bdev->bd_mutex){+.+.+.}, at: [<ffffffff8162e03b>] __blkdev_put+0xbb/0x840 fs/block_dev.c:1579

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 515 Comm: khungtaskd Not tainted 4.9.93-geba1ffe #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d848fd08 ffffffff81d9c2b9 0000000000000000 0000000000000001
 0000000000000001 0000000000000001 ffffffff810b7d90 ffff8801d848fd40
 ffffffff81da75f7 0000000000000001 0000000000000000 0000000000000002
Call Trace:
 [<ffffffff81d9c2b9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c2b9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81da75f7>] nmi_cpu_backtrace.cold.2+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81da758a>] nmi_trigger_cpumask_backtrace+0x12a/0x14f lib/nmi_backtrace.c:60
 [<ffffffff810b7e94>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff81364994>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff81364994>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff81364994>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff81364994>] watchdog+0x6b4/0xa20 kernel/hung_task.c:239
 [<ffffffff8119ab4d>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff838d5b1c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.93-geba1ffe #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffffffff84429800 task.stack: ffffffff84400000
RIP: 0010:[<ffffffff838d7bb0>] 
c [<ffffffff838d7bb0>] reschedule_interrupt+0x0/0xb0 arch/x86/entry/entry_64.S:670
RSP: 0018:ffffffff84407d98  EFLAGS: 00000046
RAX: 0000000000000007 RBX: ffffffff84a2ae68 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8442a0bc
RBP: ffffffff84407dc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff84a3a008 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000132d000 CR3: 00000001c280e000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff838d4586
c 0000000000000010
c 0000000000000246
c ffffffff84407dc0
c
 0000000000000018
c ffffffff84407df8
c ffffffff838d3bc5
c ffffffff84429800
c
 0000000000000000
c dffffc0000000000
c ffffffff84a3a008
c 0000000000000000
c
Call Trace:
 [<ffffffff838d3bc5>] arch_safe_halt arch/x86/include/asm/paravirt.h:104 [inline]
 [<ffffffff838d3bc5>] default_idle+0x55/0x360 arch/x86/kernel/process.c:295
 [<ffffffff81069fa0>] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:286
 [<ffffffff838d49e5>] default_idle_call+0x45/0x60 kernel/sched/idle.c:97
 [<ffffffff81220765>] cpuidle_idle_call kernel/sched/idle.c:155 [inline]
 [<ffffffff81220765>] cpu_idle_loop kernel/sched/idle.c:248 [inline]
 [<ffffffff81220765>] cpu_startup_entry+0x2b5/0x380 kernel/sched/idle.c:303
 [<ffffffff838c184c>] rest_init+0x183/0x189 init/main.c:409
 [<ffffffff84a73943>] start_kernel+0x67e/0x6b2 init/main.c:664
 [<ffffffff84a7229a>] x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:196
 [<ffffffff84a723db>] x86_64_start_kernel+0x13f/0x162 arch/x86/kernel/head64.c:177
Code: 
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c84 
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c<0f> 
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c48 
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c88 
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c