[ 14.294472][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 14.294491][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.294493][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 14.294495][ T89] preempt_count: 2, expected: 0 [ 14.294496][ T89] RCU nest depth: 0, expected: 0 [ 14.294497][ T89] locks held by (udev-worker)/89: 5, last CPU#2: [ 14.294499][ T89] #0: ffffffffae2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.294510][ T89] #1: ffffffffae399cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.294516][ T89] #2: ffffffffae399d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.294519][ T89] #3: ffffffffae289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.294522][ T89] #4: ffffffffae289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.294526][ T89] irq event stamp: 788812 [ 14.294527][ T89] hardirqs last enabled at (788811): [] __down_trylock_console_sem+0x86/0xa0 [ 14.294530][ T89] hardirqs last disabled at (788812): [] console_emit_next_record+0x3f8/0x4f0 [ 14.294532][ T89] softirqs last enabled at (788748): [] netlink_release+0x17b/0xcf0 [ 14.294536][ T89] softirqs last disabled at (788746): [] netlink_release+0xd2/0xcf0 [ 14.294538][ T89] Preemption disabled at: [ 14.294539][ T89] [<0000000000000000>] 0x0 [ 14.294548][ T89] CPU: 2 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.294551][ T89] Tainted: [W]=WARN [ 14.294552][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.294554][ T89] Call Trace: [ 14.294555][ T89] [ 14.294557][ T89] dump_stack_lvl+0x6f/0xa0 [ 14.294562][ T89] __might_resched.cold+0x1fe/0x2c1 [ 14.294567][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.294571][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 14.294576][ T89] __kmalloc_noprof+0x443/0x760 [ 14.294579][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 14.294585][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 14.294587][ T89] alloc_buf.isra.0+0x4b/0x260 [ 14.294590][ T89] put_chars+0x1e1/0x2f0 [ 14.294594][ T89] ? __send_to_port+0x420/0x420 [ 14.294596][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 14.294599][ T89] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.294603][ T89] ? validate_chain+0x38b/0xc20 [ 14.294607][ T89] hvc_console_print+0x292/0x780 [ 14.294611][ T89] ? __lock_acquire+0x518/0xc20 [ 14.294613][ T89] ? __lock_acquire+0x518/0xc20 [ 14.294618][ T89] ? hvc_write+0x3a0/0x3a0 [ 14.294622][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.294624][ T89] ? lock_acquire+0x13c/0x160 [ 14.294629][ T89] console_emit_next_record+0x252/0x4f0 [ 14.294632][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 14.294636][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.294638][ T89] ? lock_acquire+0x13c/0x160 [ 14.294642][ T89] console_flush_one_record+0x46f/0x710 [ 14.294646][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 14.294648][ T89] ? __lock_acquire+0x518/0xc20 [ 14.294653][ T89] console_unlock+0xee/0x1f0 [ 14.294655][ T89] ? console_flush_one_record+0x710/0x710 [ 14.294657][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.294659][ T89] ? lock_acquire+0x60/0x160 [ 14.294663][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.294664][ T89] ? vprintk_emit+0x320/0x3e0 [ 14.294667][ T89] vprintk_emit+0x37c/0x3e0 [ 14.294671][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 14.294674][ T89] ? __lock_acquire+0x518/0xc20 [ 14.294678][ T89] _printk+0xc7/0x100 [ 14.294682][ T89] ? snapshot_read.cold+0x21/0x21 [ 14.294684][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.294687][ T89] ? __rwlock_init+0x150/0x150 [ 14.294690][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.294692][ T89] do_exit.cold+0x82/0x9c [ 14.294696][ T89] ? exit_notify+0x890/0x890 [ 14.294698][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 14.294701][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.294704][ T89] do_group_exit+0xb8/0x370 [ 14.294708][ T89] __x64_sys_exit_group+0x3c/0x50 [ 14.294710][ T89] x64_sys_call+0x1567/0x1570 [ 14.294712][ T89] do_syscall_64+0xff/0x530 [ 14.294715][ T89] ? exc_page_fault+0xee/0x100 [ 14.294718][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.294720][ T89] RIP: 0033:0x7f3aad7e31b8 [ 14.294723][ T89] Code: Unable to access opcode bytes at 0x7f3aad7e318e. [ 14.294723][ T89] RSP: 002b:00007fff1425e9e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.294726][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3aad7e31b8 [ 14.294727][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.294728][ T89] RBP: 00007fff1425eb70 R08: 000055766c2995d8 R09: 0000000000000000 [ 14.294729][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.294729][ T89] R13: 00007f3aad041050 R14: 00007f3aadd14d9e R15: 000055766c28c3d0 [ 14.294736][ T89]