QAT: Invalid ioctl Buffer I/O error on dev loop0, logical block 0, async page read INFO: task syz-executor1:10072 blocked for more than 120 seconds. Not tainted 4.13.0-rc5-next-20170816+ #4 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D22416 10072 3114 0x00000004 Call Trace: context_switch kernel/sched/core.c:2786 [inline] __schedule+0x8e8/0x2070 kernel/sched/core.c:3362 schedule+0x108/0x440 kernel/sched/core.c:3421 io_schedule+0x1c/0x70 kernel/sched/core.c:5029 wait_on_page_bit_common mm/filemap.c:973 [inline] __lock_page+0x566/0x700 mm/filemap.c:1144 lock_page include/linux/pagemap.h:478 [inline] invalidate_inode_pages2_range+0x8f6/0x11c0 mm/truncate.c:653 generic_file_direct_write+0x184/0x3e0 mm/filemap.c:2876 __generic_file_write_iter+0x21f/0x5b0 mm/filemap.c:3061 blkdev_write_iter+0x1cf/0x390 fs/block_dev.c:1897 call_write_iter include/linux/fs.h:1742 [inline] do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:650 do_iter_write+0x154/0x540 fs/read_write.c:929 vfs_iter_write+0x77/0xb0 fs/read_write.c:942 iter_file_splice_write+0x7e9/0xf50 fs/splice.c:765 do_splice_from fs/splice.c:867 [inline] direct_splice_actor+0x125/0x180 fs/splice.c:1034 splice_direct_to_actor+0x2c1/0x820 fs/splice.c:989 do_splice_direct+0x29b/0x3c0 fs/splice.c:1077 do_sendfile+0x5c9/0xe80 fs/read_write.c:1412 SYSC_sendfile64 fs/read_write.c:1467 [inline] SyS_sendfile64+0xbd/0x160 fs/read_write.c:1459 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x4512e9 RSP: 002b:00007f44c010ac08 EFLAGS: 00000216 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000718150 RCX: 00000000004512e9 RDX: 00000000200ddff8 RSI: 000000000000001b RDI: 000000000000001a RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100000001 R11: 0000000000000216 R12: 00000000004ba809 R13: 00000000ffffffff R14: 000000000000000a R15: 0000000000000001 Showing all locks held in the system: 2 locks held by khungtaskd/639: #0: (rcu_read_lock){....}, at: [] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline] #0: (rcu_read_lock){....}, at: [] watchdog+0x1c5/0xd60 kernel/hung_task.c:249 #1: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0xd2/0x410 kernel/locking/lockdep.c:4552 1 lock held by rsyslogd/2914: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0x12b/0x190 fs/file.c:767 2 locks held by getty/2997: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/2998: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/2999: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/3000: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/3001: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/3002: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 2 locks held by getty/3003: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:367 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2133 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 639 Comm: khungtaskd Not tainted 4.13.0-rc5-next-20170816+ #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 nmi_cpu_backtrace+0x20e/0x240 lib/nmi_backtrace.c:102 nmi_trigger_cpumask_backtrace+0x122/0x180 lib/nmi_backtrace.c:61 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 trigger_all_cpu_backtrace include/linux/nmi.h:105 [inline] check_hung_task kernel/hung_task.c:132 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline] watchdog+0x90c/0xd60 kernel/hung_task.c:249 kthread+0x35e/0x430 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0-rc5-next-20170816+ #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffffffff85a2c380 task.stack: ffffffff85a00000 RIP: 0010:__lock_acquire+0xf5/0x3bc0 kernel/locking/lockdep.c:3355 RSP: 0018:ffff8801db206b30 EFLAGS: 00000082 RAX: ffffed003b640d7c RBX: 0000000000000001 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8801db2257d8 RBP: ffff8801db207010 R08: ffffffff814e7cbe R09: 0000000000000001 R10: 0000000000000000 R11: ffff8801db2257d8 R12: 1ffff1003b640e10 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85a2c380 FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c43a9d7010 CR3: 00000001d3f08000 CR4: 00000000001406f0 Call Trace: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:159 rq_lock_irqsave kernel/sched/sched.h:1710 [inline] update_blocked_averages+0x2ae/0x4a30 kernel/sched/fair.c:7014 rebalance_domains+0x145/0xcc0 kernel/sched/fair.c:8777 run_rebalance_domains+0x392/0x780 kernel/sched/fair.c:9038 __do_softirq+0x2f5/0xba3 kernel/softirq.c:284 invoke_softirq kernel/softirq.c:364 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 scheduler_ipi+0x165/0x460 kernel/sched/core.c:1790 __smp_reschedule_interrupt arch/x86/kernel/smp.c:262 [inline] smp_reschedule_interrupt+0x61/0x80 arch/x86/kernel/smp.c:268 reschedule_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:807 RIP: 0010:native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:53 RSP: 0018:ffffffff85a07ce0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff02 RAX: dffffc0000000000 RBX: 1ffffffff0b40f9f RCX: 0000000000000000 RDX: 1ffffffff0b58d6c RSI: 0000000000000001 RDI: ffffffff85ac6b60 RBP: ffffffff85a07ce0 R08: ffffffff81615ca9 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85ac6b50 R13: ffffffff85a07d98 R14: 0000000000000000 R15: ffffffff85a2c380 arch_safe_halt arch/x86/include/asm/paravirt.h:98 [inline] default_idle+0xbf/0x460 arch/x86/kernel/process.c:341 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:332 default_idle_call+0x36/0x90 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x256/0x3b0 kernel/sched/idle.c:246 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:351 rest_init+0xed/0xf0 init/main.c:435 start_kernel+0x74a/0x770 init/main.c:708 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x13c/0x149 arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xa5 arch/x86/kernel/head_64.S:235 Code: f2 c7 40 20 f2 f2 f2 f2 c7 40 24 01 f2 f2 f2 c7 40 28 f2 f2 f2 f2 c7 40 2c 04 f2 f2 f2 c7 40 30 f2 f2 f2 f2 c7 40 34 04 f2 f2 f2 40 38 f2 f2 f2 f2 c7 40 3c 00 f2 f2 f2 c7 40 40 f2 f2 f2 f2