loop0: p252 start 1854537728 is beyond EOD, truncated loop0: p253 start 1854537728 is beyond EOD, truncated loop0: p254 start 1854537728 is beyond EOD, truncated loop0: p255 start 1854537728 is beyond EOD, truncated loop2: p1 < p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20 p21 p22 p23 p24 p25 p26 p27 p28 p29 p30 p31 p32 p33 p34 p35 p36 p37 p38 p39 p40 p41 p42 p43 p44 p45 p46 p47 p48 p49 p50 p51 p52 p53 p54 p55 p56 p57 p58 p59 p60 p61 p62 p63 p64 p65 p66 p67 p68 p69 p70 p71 p72 p73 p74 p75 p76 p77 p78 p79 p80 p81 p82 p83 p84 p85 p86 p87 p88 p89 p90 p91 p92 p93 p94 p95 p96 p97 p98 p99 p100 p101 p102 p103 p104 p105 p106 p107 p108 p109 p110 p111 p112 p113 p114 p115 p116 p117 p118 p119 p120 p121 p122 p123 p124 p125 p126 p127 p128 p129 p130 p131 p132 p133 p134 p135 p136 p137 p138 p139 p140 p141 p142 p143 p144 p145 p146 p147 p148 p149 p150 p151 p152 p153 p154 p155 p156 p157 p158 p159 p160 p161 p162 p163 p164 p165 p166 p167 p168 p169 p170 p171 p172 p173 p174 p175 p176 p177 p178 p179 p180 p181 p182 p183 p184 p185 p186 p187 p188 p189 p190 p191 p192 p193 p194 p195 p196 p197 p198 p199 p200 p201 p202 p203 p204 p205 p206 p207 p208 p209 p210 p211 p212 p213 p214 p215 p216 p217 p218 p219 p INFO: task init:1970 blocked for more than 140 seconds. Not tainted 4.9.194+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D28056 1970 1 0x00000000 0000000000000087 ffff8801c74dc740 ffff8801a8736880 ffff8801db721000 ffff880182ab17c0 ffff8801db721018 ffff8801d7f37758 ffffffff8281af8e ffff88010000000d 1ffff1003afe6ed4 00ff8801db72bf08 ffff8801db7218f0 Call Trace: [<0000000070ee53b0>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<00000000c861efdb>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579 [<0000000064929c22>] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [<0000000064929c22>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621 [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 [<00000000484144ae>] chrdev_open+0x230/0x630 fs/char_dev.c:398 [<00000000ba78c3c0>] do_dentry_open+0x422/0xd20 fs/open.c:791 [<000000009c9f1889>] vfs_open+0x105/0x230 fs/open.c:904 [<00000000ad4f472b>] do_last fs/namei.c:3541 [inline] [<00000000ad4f472b>] path_openat+0xbf5/0x2f60 fs/namei.c:3665 [<000000003dfab1b2>] do_filp_open+0x1a1/0x280 fs/namei.c:3699 [<0000000092c68009>] do_sys_open+0x2f0/0x610 fs/open.c:1097 [<00000000d103813e>] SYSC_open fs/open.c:1115 [inline] [<00000000d103813e>] SyS_open+0x2d/0x40 fs/open.c:1110 [<0000000051faf7d2>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000007b2cf2fc>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Showing all locks held in the system: 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [<00000000cd2948f9>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline] #0: (rcu_read_lock){......}, at: [<00000000cd2948f9>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263 #1: (tasklist_lock){.+.+..}, at: [<000000009a6a07d6>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1896: #0: (&f->f_pos_lock){+.+.+.}, at: [<000000003b3a0d16>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2021: #0: (&tty->ldisc_sem){++++++}, at: [<00000000cf67605b>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.+.}, at: [<0000000098047d22>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 1 lock held by init/1970: #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/1972: #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/1974: #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/2547: #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/2548: #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f46ea5b9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by blkid/11184: #0: (&bdev->bd_mutex){+.+.+.}, at: [<000000008f11465a>] __blkdev_get+0x10e/0xeb0 fs/block_dev.c:1273 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.194+ #0 ffff8801d98d7cc8 ffffffff81b67001 0000000000000000 0000000000000000 0000000000000000 ffffffff81099d01 dffffc0000000000 ffff8801d98d7d00 ffffffff81b7229c 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<000000004bcb261f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000004bcb261f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000009211aaa1>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<00000000e446077d>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<000000006ffd991e>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<0000000090a283be>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<0000000090a283be>] check_hung_task kernel/hung_task.c:126 [inline] [<0000000090a283be>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline] [<0000000090a283be>] watchdog+0x670/0xaf0 kernel/hung_task.c:263 [<00000000c22f939e>] kthread+0x278/0x310 kernel/kthread.c:211 [<00000000ec92ed44>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11146 Comm: syz-executor.3 Not tainted 4.9.194+ #0 task: 00000000a817bbaf task.stack: 00000000fa81c2a7 RIP: 0010:[] c [<00000000ac08abe6>] __lock_release kernel/locking/lockdep.c:3566 [inline] RIP: 0010:[] c [<00000000ac08abe6>] lock_release+0x39f/0xc30 kernel/locking/lockdep.c:3775 RSP: 0018:ffff8801db707e10 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff880188e7d068 RCX: 0000000000000003 RDX: ffff880188e7cfe8 RSI: ffffffff830e0988 RDI: 0000000000000000 RBP: ffff8801db707eb8 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff880188e7d040 R14: 0000000000000003 R15: ffff880188e7d08a FS: 00007f9434fe1700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000cac810 CR3: 00000001c8c28000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: 637cb4cd41c1dc45c 0000000000000046c ffff880188e7c740c 0000000000000000c 0000000000000000c 0000000000000002c ffff8801db707eb8c 0000000000000046c 0000000000000000c ffff880188e7cfe8c ffff880188e7cff0c 0000000000000046c Call Trace: [<000000001d7ec812>] seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] [<000000001d7ec812>] read_seqcount_begin include/linux/seqlock.h:163 [inline] [<000000001d7ec812>] ktime_get_update_offsets_now+0xa4/0x2d0 kernel/time/timekeeping.c:2285 [<00000000fd1309d0>] hrtimer_update_base kernel/time/hrtimer.c:502 [inline] [<00000000fd1309d0>] hrtimer_interrupt+0x210/0x450 kernel/time/hrtimer.c:1385 [<000000003dc09ea6>] local_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:975 [<0000000015efe228>] smp_apic_timer_interrupt+0x79/0xb0 arch/x86/kernel/apic/apic.c:999 [<00000000d193819d>] apic_timer_interrupt+0xa5/0xb0 arch/x86/entry/entry_64.S:653 d [<00000000272d3bf4>] ? ext4_get_group_desc+0x86/0x2b0 fs/ext4/balloc.c:290 [<00000000fd5f646a>] recently_deleted fs/ext4/ialloc.c:683 [inline] [<00000000fd5f646a>] __ext4_new_inode+0x14b4/0x49b0 fs/ext4/ialloc.c:866 [<000000007bde4f1a>] ext4_symlink+0x320/0xa00 fs/ext4/namei.c:3104 [<00000000415a8ede>] vfs_symlink2+0x330/0x570 fs/namei.c:4276 [<000000001ec0120a>] SYSC_symlinkat fs/namei.c:4309 [inline] [<000000001ec0120a>] SyS_symlinkat+0x14e/0x240 fs/namei.c:4289 [<0000000010266894>] SYSC_symlink fs/namei.c:4322 [inline] [<0000000010266894>] SyS_symlink+0x23/0x30 fs/namei.c:4320 [<0000000051faf7d2>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000007b2cf2fc>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c0b c89 c4d cc0 ce8 c03 cc3 c2e c00 c8b c4d cc0 c66 c83 c6b c22 c10 c66 cf7 c43 c22 cf0 cff c0f c85 c6e c01 c00 c00 c48 cb8 c00 c00 c00 c00 c00 cfc cff cdf c48 c8b c55 ca0 c<48> cc1 cea c03 c0f cb6 c04 c02 c84 cc0 c74 c13 c3c c03 c7f c0f c48 c8b c7d ca0 c89 c