INFO: task syz-executor.3:23942 can't die for more than 143 seconds.
syz-executor.3 R running task 25824 23942 23856 0x00004004
Call Trace:
context_switch kernel/sched/core.c:3252 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3878
preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:4023
preempt_schedule+0x4b/0x60 kernel/sched/core.c:4049
___preempt_schedule+0x16/0x18
__blk_mq_delay_run_hw_queue+0x56a/0x600 block/blk-mq.c:1462
blk_mq_run_hw_queue+0x19d/0x350 block/blk-mq.c:1498
blk_mq_sched_insert_requests+0x308/0x680 block/blk-mq-sched.c:447
blk_mq_flush_plug_list+0x344/0xd90 block/blk-mq.c:1741
blk_flush_plug_list+0x349/0x520 block/blk-core.c:1724
blk_mq_make_request+0x7a8/0x1e70 block/blk-mq.c:2004
generic_make_request block/blk-core.c:1051 [inline]
generic_make_request+0x23c/0xb50 block/blk-core.c:993
submit_bio+0xba/0x480 block/blk-core.c:1159
mpage_bio_submit fs/mpage.c:66 [inline]
do_mpage_readpage+0x1230/0x2220 fs/mpage.c:316
mpage_readpages+0x388/0x630 fs/mpage.c:404
blkdev_readpages+0x2d/0x40 fs/block_dev.c:632
read_pages+0x108/0x540 mm/readahead.c:126
__do_page_cache_readahead+0x3bd/0x5d0 mm/readahead.c:190
ra_submit mm/internal.h:62 [inline]
do_sync_mmap_readahead mm/filemap.c:2416 [inline]
filemap_fault+0x1389/0x2840 mm/filemap.c:2502
__do_fault+0x111/0x540 mm/memory.c:3193
do_shared_fault mm/memory.c:3645 [inline]
do_fault mm/memory.c:3724 [inline]
handle_pte_fault mm/memory.c:3951 [inline]
__handle_mm_fault+0x2ae7/0x3f20 mm/memory.c:4075
handle_mm_fault+0x1b5/0x6b0 mm/memory.c:4112
do_user_addr_fault arch/x86/mm/fault.c:1438 [inline]
__do_page_fault+0x531/0xdc0 arch/x86/mm/fault.c:1504
do_page_fault+0x71/0x5e1 arch/x86/mm/fault.c:1535
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x400610
Code: 01 e9 c9 00 00 00 48 8b 44 24 10 48 0b 44 24 28 be 08 00 00 00 48 8b 14 24 75 17 48 8b 7c 24 20 e8 e5 53 00 00 48 8b 4c 24 08 <48> 89 01 e9 9d 00 00 00 48 8b 44 24 08 48 8b 38 e8 cb 53 00 00 8a
RSP: 002b:00007ffe5b897b30 EFLAGS: 00010206
RAX: 000000003a000000 RBX: 0000000000760fd0 RCX: 0000000020000140
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000003a000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000438af0 R11: 0000000000000012 R12: 0000000000760fd8
R13: 00000000004c58ad R14: 00000000000000c8 R15: fffffffffffffffe
INFO: task syz-executor.3:23943 can't die for more than 145 seconds.
syz-executor.3 R running task 23784 23943 23856 0x00004006
Call Trace:
context_switch kernel/sched/core.c:3252 [inline]
__schedule+0x755/0x1580 kernel/sched/core.c:3878
Showing all locks held in the system:
1 lock held by khungtaskd/1046:
#0: 00000000458851f2 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5257
1 lock held by rsyslogd/9052:
#0: 00000000671e0ceb (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/9142:
#0: 00000000313988fa (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000c363bdbd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9143:
#0: 00000000065bbe23 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000002cd92514 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9144:
#0: 0000000034bbc68b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000008294c685 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9145:
#0: 0000000097072a0e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000005c0e9cc9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9146:
#0: 000000005ec1fbfe (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000ce81c014 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9147:
#0: 00000000e1e0c7d2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000046e3c0bb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/9148:
#0: 00000000f57518ff (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000038241f44 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
3 locks held by kworker/1:4/23603:
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: __write_once_size include/linux/compiler.h:221 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
#0: 0000000064969caa ((wq_completion)events){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
#1: 00000000aeb48639 ((linkwatch_work).work){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
#2: 000000008bb5215f (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
2 locks held by kworker/1:5/23634:
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: __write_once_size include/linux/compiler.h:221 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: set_work_data kernel/workqueue.c:620 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:647 [inline]
#0: 0000000015ad7040 ((wq_completion)rcu_gp){+.+.}, at: process_one_work+0x88b/0x1740 kernel/workqueue.c:2240
#1: 0000000013b3f75d ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x8c1/0x1740 kernel/workqueue.c:2244
2 locks held by syz-executor.4/23955:
#0: 000000008bb5215f (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
#1: 000000004cfb6fcb (rcu_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:285 [inline]
#1: 000000004cfb6fcb (rcu_state.exp_mutex){+.+.}, at: synchronize_rcu_expedited+0x4b2/0x5b0 kernel/rcu/tree_exp.h:816
1 lock held by syz-executor.3/23943:
1 lock held by syz-executor.2/23997:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1046 Comm: khungtaskd Not tainted 5.2.0-rc6-next-20190627 #24
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+0x172/0x1f0 lib/dump_stack.c:113
nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x23b/0x28b 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:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:249 [inline]
watchdog+0xc54/0x1320 kernel/hung_task.c:333
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:353
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 23997 Comm: syz-executor.2 Not tainted 5.2.0-rc6-next-20190627 #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__hrtimer_run_queues+0x4f5/0xe40 kernel/time/hrtimer.c:1447
Code: 8b 6e 48 4d 85 ed 0f 84 14 06 00 00 e8 44 98 0f 00 48 8b 5d 98 e8 3b 98 0f 00 49 8d 7d 20 48 89 f8 48 c1 e8 03 42 80 3c 38 00 <0f> 85 f0 07 00 00 4d 8b 65 20 48 89 de 4c 89 e7 e8 36 99 0f 00 49
RSP: 0018:ffff8880ae809e18 EFLAGS: 00000046
RAX: 1ffff1100bc75317 RBX: 000001eb3c2d6f0f RCX: ffff8880ae826d00
RDX: 0000000000010000 RSI: ffffffff8162c5c5 RDI: ffff88805e3a98b8
RBP: ffff8880ae809f08 R08: ffff888032ab0540 R09: ffff888032ab0dd0
R10: fffffbfff134667f R11: ffffffff89a333ff R12: 0000000000000000
R13: ffff88805e3a9898 R14: ffff8880ae826d80 R15: dffffc0000000000
FS: 00007f978afa9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdfb205f167 CR3: 00000000117c0000 CR4: 00000000001506f0
Call Trace:
hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1508
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline]
smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1066
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:199
Code: c0 40 ea d2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d e5 dc a0 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 c2 8a 1c fa 65 8b 05 13 f0 cf 78 85 c0 74 06 41
RSP: 0018:ffff88801af073b0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11a5d48 RBX: ffff88801af074d0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff888032ab0dd4
RBP: ffff88801af073b8 R08: ffff888032ab0540 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888089845660
R13: 0000000000000000 R14: ffff888089845658 R15: ffff88801af07460
spin_unlock_irq include/linux/spinlock.h:388 [inline]
__add_to_page_cache_locked+0x646/0xec0 mm/filemap.c:869
add_to_page_cache_lru+0x1d8/0x790 mm/filemap.c:916
mpage_readpages+0x344/0x630 fs/mpage.c:399
blkdev_readpages+0x2d/0x40 fs/block_dev.c:632
read_pages+0x108/0x540 mm/readahead.c:126
__do_page_cache_readahead+0x3bd/0x5d0 mm/readahead.c:190
ra_submit mm/internal.h:62 [inline]
do_sync_mmap_readahead mm/filemap.c:2416 [inline]
filemap_fault+0x1389/0x2840 mm/filemap.c:2502
__do_fault+0x111/0x540 mm/memory.c:3193
do_read_fault mm/memory.c:3590 [inline]
do_fault mm/memory.c:3720 [inline]
handle_pte_fault mm/memory.c:3951 [inline]
__handle_mm_fault+0x2cc0/0x3f20 mm/memory.c:4075
handle_mm_fault+0x1b5/0x6b0 mm/memory.c:4112
do_user_addr_fault arch/x86/mm/fault.c:1438 [inline]
__do_page_fault+0x531/0xdc0 arch/x86/mm/fault.c:1504
do_page_fault+0x71/0x5e1 arch/x86/mm/fault.c:1535
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0010:__get_user_8+0x21/0x2b arch/x86/lib/getuser.S:95
Code: 1f 00 c3 66 0f 1f 44 00 00 48 83 c0 07 72 25 65 48 8b 14 25 c0 fd 01 00 48 3b 82 18 14 00 00 73 13 48 19 d2 48 21 d0 0f 1f 00 <48> 8b 50 f9 31 c0 0f 1f 00 c3 31 d2 48 c7 c0 f2 ff ff ff 0f 1f 00
RSP: 0018:ffff88801af07ee8 EFLAGS: 00010206
RAX: 0000000020000047 RBX: 00000000000000fe RCX: ffffc9000b61d000
RDX: ffffffffffffffff RSI: ffffffff819c8193 RDI: 0000000000000282
RBP: ffff88801af07f10 R08: 0000000000000001 R09: ffff888032ab0dd0
R10: fffffbfff134667f R11: ffffffff89a333ff R12: ffff88801af07f58
R13: ffffffff88d2ea40 R14: 0000000020000040 R15: 0000000000000000
do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459519
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f978afa8c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000459519
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 00000000000000fe
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f978afa96d4
R13: 00000000004c088f R14: 00000000004d3530 R15: 00000000ffffffff