[ 10.078444][ T91] (udev-worker) (91) used greatest stack depth: 24984 bytes left [ 10.078459][ T91] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.078462][ T91] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 91, name: (udev-worker) [ 10.078463][ T91] preempt_count: 2, expected: 0 [ 10.078464][ T91] RCU nest depth: 0, expected: 0 [ 10.078465][ T91] INFO: lockdep is turned off. [ 10.078466][ T91] irq event stamp: 0 [ 10.078467][ T91] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 10.078472][ T91] hardirqs last disabled at (0): [] copy_process+0x1d3b/0x62d0 [ 10.078478][ T91] softirqs last enabled at (0): [] copy_process+0x1d8f/0x62d0 [ 10.078480][ T91] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 10.078482][ T91] Preemption disabled at: [ 10.078482][ T91] [<0000000000000000>] 0x0 [ 10.078487][ T91] CPU: 0 UID: 0 PID: 91 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.078490][ T91] Tainted: [W]=WARN [ 10.078491][ T91] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.078493][ T91] Call Trace: [ 10.078494][ T91] [ 10.078496][ T91] dump_stack_lvl+0x6f/0xa0 [ 10.078501][ T91] __might_resched.cold+0x1fe/0x2c1 [ 10.078506][ T91] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.078509][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078513][ T91] __kmalloc_noprof+0x443/0x760 [ 10.078517][ T91] ? __rwlock_init+0x150/0x150 [ 10.078520][ T91] ? alloc_buf.isra.0+0x4b/0x260 [ 10.078524][ T91] ? do_raw_spin_unlock+0x59/0x250 [ 10.078526][ T91] alloc_buf.isra.0+0x4b/0x260 [ 10.078528][ T91] put_chars+0x1e1/0x2f0 [ 10.078531][ T91] ? __send_to_port+0x420/0x420 [ 10.078533][ T91] ? printk_get_next_message+0x2fe/0x7d0 [ 10.078536][ T91] ? console_prepend_replay+0x20/0x20 [ 10.078538][ T91] ? desc_read+0x219/0x2f0 [ 10.078540][ T91] hvc_console_print+0x292/0x780 [ 10.078544][ T91] ? hvc_write+0x3a0/0x3a0 [ 10.078546][ T91] ? __rwlock_init+0x150/0x150 [ 10.078547][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078549][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078551][ T91] ? lock_acquire+0x13c/0x160 [ 10.078553][ T91] console_emit_next_record+0x252/0x4f0 [ 10.078555][ T91] ? devkmsg_read+0x4e0/0x4e0 [ 10.078557][ T91] ? _prb_read_valid+0x6e0/0x6e0 [ 10.078559][ T91] ? __asan_memmove+0x3c/0x60 [ 10.078561][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078563][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078564][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078566][ T91] ? lock_acquire+0x13c/0x160 [ 10.078568][ T91] ? console_flush_one_record+0x111/0x710 [ 10.078569][ T91] console_flush_one_record+0x46f/0x710 [ 10.078572][ T91] ? console_emit_next_record+0x4f0/0x4f0 [ 10.078574][ T91] console_unlock+0xee/0x1f0 [ 10.078580][ T91] ? lock_acquire+0x13c/0x160 [ 10.078581][ T91] ? console_flush_one_record+0x710/0x710 [ 10.078583][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078584][ T91] ? lock_release+0x184/0x1f0 [ 10.078586][ T91] ? lock_acquire+0xa0/0x160 [ 10.078587][ T91] ? sync_exp_reset_tree_hotplug+0x3e0/0x3f0 [ 10.078589][ T91] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.078591][ T91] ? vprintk_emit+0x320/0x3e0 [ 10.078593][ T91] vprintk_emit+0x37c/0x3e0 [ 10.078596][ T91] ? wake_up_klogd_work_func+0x90/0x90 [ 10.078598][ T91] ? do_raw_read_unlock+0x70/0x70 [ 10.078599][ T91] ? forget_original_parent+0x5c/0xdb0 [ 10.078602][ T91] _printk+0xc7/0x100 [ 10.078604][ T91] ? snapshot_read.cold+0x21/0x21 [ 10.078606][ T91] ? do_raw_spin_lock+0x131/0x280 [ 10.078608][ T91] ? do_raw_spin_lock+0x131/0x280 [ 10.078609][ T91] ? __rwlock_init+0x150/0x150 [ 10.078611][ T91] ? do_raw_spin_lock+0x131/0x280 [ 10.078613][ T91] do_exit.cold+0x82/0x9c [ 10.078616][ T91] ? vfs_read+0x3dd/0x7b0 [ 10.078618][ T91] ? exit_notify+0x890/0x890 [ 10.078620][ T91] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 10.078622][ T91] ? rcu_is_watching+0x16/0xd0 [ 10.078624][ T91] do_group_exit+0xb8/0x370 [ 10.078626][ T91] __x64_sys_exit_group+0x3c/0x50 [ 10.078627][ T91] x64_sys_call+0x1567/0x1570 [ 10.078629][ T91] do_syscall_64+0xff/0x530 [ 10.078633][ T91] ? irq_exit_rcu+0x1a/0x30 [ 10.078634][ T91] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.078637][ T91] RIP: 0033:0x7f96243c71b8 [ 10.078639][ T91] Code: Unable to access opcode bytes at 0x7f96243c718e. [ 10.078640][ T91] RSP: 002b:00007fffb5d35908 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 10.078643][ T91] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f96243c71b8 [ 10.078644][ T91] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 10.078645][ T91] RBP: 00007fffb5d35a90 R08: 000056406b75a3d8 R09: 0000000000000000 [ 10.078646][ T91] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 10.078647][ T91] R13: 00007f9623c25050 R14: 00007f96248f8d9e R15: 000056406b5df6d0 [ 10.078649][ T91] [ 10.089457][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left