[ 13.131570][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 13.131590][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.131592][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 13.131594][ T84] preempt_count: 2, expected: 0 [ 13.131594][ T84] RCU nest depth: 0, expected: 0 [ 13.131595][ T84] locks held by (udev-worker)/84: 5, last CPU#0: [ 13.131598][ T84] #0: ffffffff8b4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.131611][ T84] #1: ffffffff8b569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.131617][ T84] #2: ffffffff8b569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.131620][ T84] #3: ffffffff8b489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.131624][ T84] #4: ffffffff8b489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.131628][ T84] irq event stamp: 451222 [ 13.131629][ T84] hardirqs last enabled at (451221): [] __down_trylock_console_sem+0x86/0xa0 [ 13.131632][ T84] hardirqs last disabled at (451222): [] console_emit_next_record+0x3d4/0x4c0 [ 13.131633][ T84] softirqs last enabled at (451158): [] netlink_release+0x17b/0xcf0 [ 13.131637][ T84] softirqs last disabled at (451156): [] netlink_release+0xd2/0xcf0 [ 13.131640][ T84] Preemption disabled at: [ 13.131640][ T84] [<0000000000000000>] 0x0 [ 13.131648][ T84] CPU: 0 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.131652][ T84] Tainted: [W]=WARN [ 13.131653][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.131654][ T84] Call Trace: [ 13.131656][ T84] [ 13.131657][ T84] dump_stack_lvl+0x6f/0xa0 [ 13.131663][ T84] __might_resched.cold+0x1fe/0x2c1 [ 13.131668][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.131672][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 13.131677][ T84] __kmalloc_noprof+0x443/0x760 [ 13.131679][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 13.131685][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 13.131688][ T84] alloc_buf.isra.0+0x4b/0x260 [ 13.131691][ T84] put_chars+0x1e1/0x2f0 [ 13.131695][ T84] ? __send_to_port+0x420/0x420 [ 13.131697][ T84] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.131701][ T84] ? validate_chain+0x38b/0xc20 [ 13.131706][ T84] hvc_console_print+0x292/0x780 [ 13.131714][ T84] ? hvc_write+0x3a0/0x3a0 [ 13.131717][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.131719][ T84] ? lock_acquire+0x13c/0x160 [ 13.131723][ T84] console_emit_next_record+0x22f/0x4c0 [ 13.131727][ T84] ? devkmsg_read+0x4b0/0x4b0 [ 13.131728][ T84] ? console_flush_one_record+0x106/0x710 [ 13.131731][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.131734][ T84] ? lock_acquire+0x13c/0x160 [ 13.131737][ T84] console_flush_one_record+0x46f/0x710 [ 13.131742][ T84] ? console_emit_next_record+0x4c0/0x4c0 [ 13.131743][ T84] ? __lock_acquire+0x518/0xc20 [ 13.131748][ T84] console_unlock+0xee/0x1f0 [ 13.131751][ T84] ? console_flush_one_record+0x710/0x710 [ 13.131753][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.131755][ T84] ? lock_acquire+0x60/0x160 [ 13.131759][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.131760][ T84] ? vprintk_emit+0x320/0x3e0 [ 13.131765][ T84] vprintk_emit+0x37c/0x3e0 [ 13.131772][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 13.131777][ T84] ? __lock_acquire+0x518/0xc20 [ 13.131780][ T84] _printk+0xc7/0x100 [ 13.131784][ T84] ? snapshot_read.cold+0x21/0x21 [ 13.131786][ T84] ? do_raw_spin_lock+0x131/0x280 [ 13.131789][ T84] ? __rwlock_init+0x150/0x150 [ 13.131792][ T84] ? do_raw_spin_lock+0x131/0x280 [ 13.131795][ T84] do_exit.cold+0x82/0x9c [ 13.131799][ T84] ? exit_notify+0x890/0x890 [ 13.131801][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 13.131803][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.131807][ T84] do_group_exit+0xb8/0x370 [ 13.131812][ T84] __x64_sys_exit_group+0x3c/0x50 [ 13.131815][ T84] x64_sys_call+0x1567/0x1570 [ 13.131817][ T84] do_syscall_64+0xff/0x530 [ 13.131820][ T84] ? exc_page_fault+0xee/0x100 [ 13.131823][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.131826][ T84] RIP: 0033:0x7fa47822f1b8 [ 13.131828][ T84] Code: Unable to access opcode bytes at 0x7fa47822f18e. [ 13.131830][ T84] RSP: 002b:00007fffd502fe78 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.131832][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa47822f1b8 [ 13.131834][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.131835][ T84] RBP: 00007fffd5030000 R08: 000055f72faed9f8 R09: 0000000000000000 [ 13.131835][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.131836][ T84] R13: 00007fa477a8d050 R14: 00007fa478760d9e R15: 000055f72fadc3e0 [ 13.131843][ T84]