loop4: p251 start 1854537728 is beyond EOD, truncated loop4: p252 start 1854537728 is beyond EOD, truncated loop4: p253 start 1854537728 is beyond EOD, truncated loop4: p254 start 1854537728 is beyond EOD, truncated loop4: p255 start 1854537728 is beyond EOD, truncated INFO: task init:8028 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 D29304 8028 1 0x00000000 0000000000000087 ffff8801a7292f80 ffff88019dc6d800 ffff8801db621000 ffff8801a7295f00 ffff8801db621018 ffff8801c549f758 ffffffff8281af8e ffff8801a7293848 ffff8801a7293820 00ff8801a7293850 ffff8801db6218f0 Call Trace: [<0000000063294814>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<0000000053e44218>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579 [<0000000004740f6e>] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [<0000000004740f6e>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621 [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 [<00000000d46c9c6c>] chrdev_open+0x230/0x630 fs/char_dev.c:398 [<0000000021b65f64>] do_dentry_open+0x422/0xd20 fs/open.c:791 [<00000000e8412bec>] vfs_open+0x105/0x230 fs/open.c:904 [<00000000d9882a62>] do_last fs/namei.c:3541 [inline] [<00000000d9882a62>] path_openat+0xbf5/0x2f60 fs/namei.c:3665 [<00000000d0a39f68>] do_filp_open+0x1a1/0x280 fs/namei.c:3699 [<00000000ee7b5324>] do_sys_open+0x2f0/0x610 fs/open.c:1097 [<0000000050d74b00>] SYSC_open fs/open.c:1115 [inline] [<0000000050d74b00>] SyS_open+0x2d/0x40 fs/open.c:1110 [<0000000063a4d71d>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000027774b1e>] 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: [<0000000079483951>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline] #0: (rcu_read_lock){......}, at: [<0000000079483951>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263 #1: (tasklist_lock){.+.+..}, at: [<00000000961f9076>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1900: #0: (&f->f_pos_lock){+.+.+.}, at: [<00000000531a590b>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2027: #0: (&tty->ldisc_sem){++++++}, at: [<00000000e3bc2e5d>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.+.}, at: [<00000000022dc99a>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 2 locks held by kworker/u4:15/25746: #0: ("events_unbound"){.+.+.+}, at: [<00000000b5d947b7>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107 #1: ((&sub_info->work)){+.+.+.}, at: [<000000007ad26636>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111 1 lock held by init/8028: #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/8029: #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/8035: #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/8036: #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/8037: #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000f1ae606b>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 2 locks held by kworker/u4:20/10652: #0: ("events_unbound"){.+.+.+}, at: [<00000000b5d947b7>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107 #1: ((&sub_info->work)){+.+.+.}, at: [<000000007ad26636>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111 1 lock held by syz-executor.5/18349: #0: (&net->xfrm.xfrm_cfg_mutex){+.+.+.}, at: [<00000000baa2d4da>] pfkey_sendmsg+0x34d/0x6e0 net/key/af_key.c:3708 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.194+ #0 ffff8801d98efcc8 ffffffff81b67001 0000000000000000 0000000000000000 0000000000000000 ffffffff81099d01 dffffc0000000000 ffff8801d98efd00 ffffffff81b7229c 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<00000000a1962542>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a1962542>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000d9d0756c>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<00000000f3c9f2a9>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<0000000019057863>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<000000003aa40fa3>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<000000003aa40fa3>] check_hung_task kernel/hung_task.c:126 [inline] [<000000003aa40fa3>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline] [<000000003aa40fa3>] watchdog+0x670/0xaf0 kernel/hung_task.c:263 [<0000000089f42b4a>] kthread+0x278/0x310 kernel/kthread.c:211 [<000000003193aaa8>] 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: 18365 Comm: blkid Not tainted 4.9.194+ #0 task: 000000004ab17956 task.stack: 000000001871e2fc RIP: 0010:[] c [<0000000068299129>] arch_local_save_flags arch/x86/include/asm/paravirt.h:763 [inline] RIP: 0010:[] c [<0000000068299129>] arch_local_irq_save arch/x86/include/asm/paravirt.h:785 [inline] RIP: 0010:[] c [<0000000068299129>] lock_release+0x69/0xc30 kernel/locking/lockdep.c:3771 RSP: 0018:ffff8801a89ff9e0 EFLAGS: 00000246 RAX: 0000000000000246 RBX: ffff8801a69f4740 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801a69f4fec RBP: ffff8801a89ffa88 R08: 0000000000000001 R09: 00000000000032f8 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8801d4c93ce8 R13: 00007fa769c1d000 R14: ffff8801d4c93d00 R15: ffff8801d4c93ce8 FS: 00007fd4f1dcc7a0(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000607304 CR3: 00000001a7116000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Stack: 0000000000000246c ffff8801a69f4740c 0000000000000000c 0000000000000000c 0000000000000000c ffff8801a89ffa80c 0000000000000246c 0000000000000000c ffffffff814b4bdec ffff880100000000c ffff880100000000c 0000000000000246c Call Trace: [<00000000a8a6177b>] __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] [<00000000a8a6177b>] _raw_spin_unlock+0x1b/0x50 kernel/locking/spinlock.c:183 [<00000000158e8a81>] spin_unlock include/linux/spinlock.h:347 [inline] [<00000000158e8a81>] browse_rb mm/mmap.c:320 [inline] [<00000000158e8a81>] validate_mm+0x337/0x5a0 mm/mmap.c:380 [<000000007f26f975>] remove_vma_list mm/mmap.c:2522 [inline] [<000000007f26f975>] do_munmap+0x702/0xd00 mm/mmap.c:2744 [<000000002889f5d3>] vm_munmap+0x6c/0xa0 mm/mmap.c:2758 [<00000000e8c4d0cd>] elf_map+0x1e9/0x230 fs/binfmt_elf.c:363 [<00000000acb9e7de>] load_elf_interp fs/binfmt_elf.c:567 [inline] [<00000000acb9e7de>] load_elf_binary+0x1951/0x4a90 fs/binfmt_elf.c:1050 [<0000000089f85905>] search_binary_handler fs/exec.c:1621 [inline] [<0000000089f85905>] search_binary_handler+0x14f/0x700 fs/exec.c:1599 [<0000000000fc18b6>] exec_binprm fs/exec.c:1663 [inline] [<0000000000fc18b6>] do_execveat_common.isra.0+0xf81/0x1db0 fs/exec.c:1785 [<00000000e3ea75aa>] do_execve fs/exec.c:1829 [inline] [<00000000e3ea75aa>] SYSC_execve fs/exec.c:1910 [inline] [<00000000e3ea75aa>] SyS_execve+0x42/0x50 fs/exec.c:1905 [<0000000063a4d71d>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000027774b1e>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c89 cf8 c83 ce0 c07 c83 cc0 c03 c38 cd0 c7c c08 c84 cd2 c0f c85 c5d c09 c00 c00 c44 c8b c93 cac c08 c00 c00 c45 c85 cd2 c0f c85 ced c04 c00 c00 c9c c58 c0f c1f c44 c00 c00 c<48> c89 c45 cb0 cfa c66 c0f c1f c44 c00 c00 c65 c48 c8b c1c c25 c00 c7e c01 c00 c48 c