binder: 29594:29622 ioctl 40046207 0 returned -16
binder: 29594:29622 transaction failed 29189/-22, size 0-0 line 3010
INFO: task syz-executor2:29602 blocked for more than 120 seconds.
Not tainted 4.9.90-gdd1e37e #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor2 D26992 29602 23851 0x20020004
ffff8801d835b000 ffff8801d744b480 ffff8801b78acfc0 ffff8801d960c800
ffff8801db221b98 ffff8801c007f360 ffffffff838a75cb 0000000041b58ab3
ffffffff84193d90 00ffffff8123aaf0 ffff8801db222468 ffff8801db222490
Call Trace:
[<ffffffff838a8b6f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3551
[<ffffffff838b4b2c>] schedule_timeout+0x56c/0x10b0 kernel/time/timer.c:1768
[<ffffffff838a6d7e>] io_schedule_timeout+0x1be/0x390 kernel/sched/core.c:5173
[<ffffffff838a9fe9>] io_schedule include/linux/sched.h:460 [inline]
[<ffffffff838a9fe9>] bit_wait_io+0x19/0xa0 kernel/sched/wait.c:582
[<ffffffff838a96c7>] __wait_on_bit+0x57/0x120 kernel/sched/wait.c:383
[<ffffffff814316e4>] wait_on_page_bit+0xf4/0x140 mm/filemap.c:802
[<ffffffff814318f1>] wait_on_page_writeback include/linux/pagemap.h:526 [inline]
[<ffffffff814318f1>] __filemap_fdatawait_range+0x1c1/0x2b0 mm/filemap.c:453
[<ffffffff81431a05>] filemap_fdatawait_range+0x25/0x50 mm/filemap.c:483
[<ffffffff8143a744>] filemap_write_and_wait_range+0x74/0xb0 mm/filemap.c:584
[<ffffffff8143c093>] generic_file_read_iter+0x6d3/0x1ac0 mm/filemap.c:1945
[<ffffffff8162b5e5>] blkdev_read_iter+0x105/0x170 fs/block_dev.c:1738
[<ffffffff8160fe84>] generic_file_splice_read+0x294/0x510 fs/splice.c:309
[<ffffffff8160e63a>] do_splice_to+0x10a/0x160 fs/splice.c:899
[<ffffffff8160e8dd>] splice_direct_to_actor+0x24d/0x800 fs/splice.c:971
[<ffffffff8160f037>] do_splice_direct+0x1a7/0x270 fs/splice.c:1080
[<ffffffff8157200b>] do_sendfile+0x54b/0xd30 fs/read_write.c:1393
[<ffffffff815740c1>] C_SYSC_sendfile fs/read_write.c:1469 [inline]
[<ffffffff815740c1>] compat_SyS_sendfile+0xd1/0x160 fs/read_write.c:1458
[<ffffffff81006f95>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
[<ffffffff81006f95>] do_fast_syscall_32+0x2f5/0x870 arch/x86/entry/common.c:387
[<ffffffff838b9bd0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
Showing all locks held in the system:
3 locks held by kworker/u4:0/6:
#0: ("writeback"){++++.+}, at: [<ffffffff8118af42>] work_static include/linux/workqueue.h:186 [inline]
#0: ("writeback"){++++.+}, at: [<ffffffff8118af42>] set_work_data kernel/workqueue.c:617 [inline]
#0: ("writeback"){++++.+}, at: [<ffffffff8118af42>] set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: ("writeback"){++++.+}, at: [<ffffffff8118af42>] process_one_work+0x6f2/0x1610 kernel/workqueue.c:2085
#1: ((&(&wb->dwork)->work)){+.+.+.}, at: [<ffffffff8118af7c>] process_one_work+0x72c/0x1610 kernel/workqueue.c:2089
#2: (&type->s_umount_key#22){++++..}, at: [<ffffffff815790a0>] trylock_super+0x20/0x100 fs/super.c:393
2 locks held by khungtaskd/515:
#0: (rcu_read_lock){......}, at: [<ffffffff81372185>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
#0: (rcu_read_lock){......}, at: [<ffffffff81372185>] watchdog+0x125/0xa70 kernel/hung_task.c:239
#1: (tasklist_lock){.+.+..}, at: [<ffffffff81236c50>] debug_show_all_locks+0x70/0x280 kernel/locking/lockdep.c:4336
2 locks held by getty/3783:
#0: (&tty->ldisc_sem){++++++}, at: [<ffffffff838b66a2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
#1: (&ldata->atomic_read_lock){+.+.+.}, at: [<ffffffff8200a6a4>] n_tty_read+0x1f4/0x16c0 drivers/tty/n_tty.c:2133
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 515 Comm: khungtaskd Not tainted 4.9.90-gdd1e37e #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
ffff8801d86cfd00 ffffffff81d94ee9 0000000000000000 0000000000000001
0000000000000001 0000000000000001 ffffffff810bb920 ffff8801d86cfd38
ffffffff81da000d 0000000000000001 0000000000000000 ffff8801d74ccc18
Call Trace:
[<ffffffff81d94ee9>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81d94ee9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
[<ffffffff81da000d>] nmi_cpu_backtrace+0xfd/0x120 lib/nmi_backtrace.c:99
[<ffffffff81da0147>] nmi_trigger_cpumask_backtrace+0x117/0x190 lib/nmi_backtrace.c:60
[<ffffffff810bba14>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
[<ffffffff81372750>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
[<ffffffff81372750>] check_hung_task kernel/hung_task.c:125 [inline]
[<ffffffff81372750>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
[<ffffffff81372750>] watchdog+0x6f0/0xa70 kernel/hung_task.c:239
[<ffffffff8119bf4d>] kthread+0x26d/0x300 kernel/kthread.c:211
[<ffffffff838b865c>] 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 skipped: idling at pc 0xffffffff838b7116