[ 15.779160][ T183] (udev-worker) (183) used greatest stack depth: 22696 bytes left [ 15.779181][ T183] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.779183][ T183] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 183, name: (udev-worker) [ 15.779185][ T183] preempt_count: 2, expected: 0 [ 15.779186][ T183] RCU nest depth: 0, expected: 0 [ 15.779187][ T183] locks held by (udev-worker)/183: 5, last CPU#1: [ 15.779189][ T183] #0: ffffffffa56027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.779201][ T183] #1: ffffffffa5799cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.779206][ T183] #2: ffffffffa5799d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.779211][ T183] #3: ffffffffa5689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.779215][ T183] #4: ffffffffa5689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.779219][ T183] irq event stamp: 131828 [ 15.779220][ T183] hardirqs last enabled at (131827): [] __down_trylock_console_sem+0x86/0xa0 [ 15.779224][ T183] hardirqs last disabled at (131828): [] console_emit_next_record+0x3f8/0x4f0 [ 15.779226][ T183] softirqs last enabled at (131764): [] netlink_release+0x17b/0xcf0 [ 15.779230][ T183] softirqs last disabled at (131762): [] netlink_release+0xd2/0xcf0 [ 15.779233][ T183] Preemption disabled at: [ 15.779234][ T183] [<0000000000000000>] 0x0 [ 15.779241][ T183] CPU: 1 UID: 0 PID: 183 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.779245][ T183] Tainted: [W]=WARN [ 15.779246][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.779248][ T183] Call Trace: [ 15.779249][ T183] [ 15.779251][ T183] dump_stack_lvl+0x6f/0xa0 [ 15.779257][ T183] __might_resched.cold+0x1fe/0x2c1 [ 15.779262][ T183] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.779266][ T183] ? __kmalloc_noprof+0xdb/0x760 [ 15.779272][ T183] __kmalloc_noprof+0x443/0x760 [ 15.779275][ T183] ? alloc_buf.isra.0+0x4b/0x260 [ 15.779282][ T183] ? do_raw_spin_unlock+0x59/0x250 [ 15.779284][ T183] alloc_buf.isra.0+0x4b/0x260 [ 15.779288][ T183] put_chars+0x1e1/0x2f0 [ 15.779292][ T183] ? __send_to_port+0x420/0x420 [ 15.779294][ T183] ? printk_get_next_message+0x2fe/0x7d0 [ 15.779298][ T183] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.779301][ T183] ? validate_chain+0x38b/0xc20 [ 15.779306][ T183] hvc_console_print+0x292/0x780 [ 15.779310][ T183] ? __lock_acquire+0x518/0xc20 [ 15.779311][ T183] ? __lock_acquire+0x518/0xc20 [ 15.779316][ T183] ? hvc_write+0x3a0/0x3a0 [ 15.779320][ T183] ? rcu_is_watching+0x16/0xd0 [ 15.779323][ T183] ? lock_acquire+0x13c/0x160 [ 15.779327][ T183] console_emit_next_record+0x252/0x4f0 [ 15.779332][ T183] ? devkmsg_read+0x4e0/0x4e0 [ 15.779336][ T183] ? rcu_is_watching+0x16/0xd0 [ 15.779338][ T183] ? lock_acquire+0x13c/0x160 [ 15.779343][ T183] console_flush_one_record+0x46f/0x710 [ 15.779348][ T183] ? console_emit_next_record+0x4f0/0x4f0 [ 15.779350][ T183] ? __lock_acquire+0x518/0xc20 [ 15.779355][ T183] console_unlock+0xee/0x1f0 [ 15.779359][ T183] ? console_flush_one_record+0x710/0x710 [ 15.779361][ T183] ? rcu_is_watching+0x16/0xd0 [ 15.779362][ T183] ? lock_acquire+0x60/0x160 [ 15.779366][ T183] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.779368][ T183] ? vprintk_emit+0x320/0x3e0 [ 15.779371][ T183] vprintk_emit+0x37c/0x3e0 [ 15.779375][ T183] ? wake_up_klogd_work_func+0x90/0x90 [ 15.779378][ T183] ? __lock_acquire+0x518/0xc20 [ 15.779382][ T183] _printk+0xc7/0x100 [ 15.779386][ T183] ? snapshot_read.cold+0x21/0x21 [ 15.779390][ T183] ? do_raw_spin_lock+0x131/0x280 [ 15.779394][ T183] ? __rwlock_init+0x150/0x150 [ 15.779399][ T183] ? do_raw_spin_lock+0x131/0x280 [ 15.779402][ T183] do_exit.cold+0x82/0x9c [ 15.779406][ T183] ? exit_notify+0x890/0x890 [ 15.779408][ T183] ? __lock_release.isra.0+0x69/0x1a0 [ 15.779411][ T183] ? rcu_is_watching+0x16/0xd0 [ 15.779415][ T183] do_group_exit+0xb8/0x370 [ 15.779418][ T183] __x64_sys_exit_group+0x3c/0x50 [ 15.779420][ T183] x64_sys_call+0x1567/0x1570 [ 15.779422][ T183] do_syscall_64+0xff/0x530 [ 15.779426][ T183] ? irq_exit_rcu+0x1a/0x30 [ 15.779429][ T183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.779431][ T183] RIP: 0033:0x7ffaab0271b8 [ 15.779434][ T183] Code: Unable to access opcode bytes at 0x7ffaab02718e. [ 15.779435][ T183] RSP: 002b:00007ffea4549728 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.779438][ T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffaab0271b8 [ 15.779439][ T183] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.779440][ T183] RBP: 00007ffea45498b0 R08: 00005605f8399638 R09: 0000000000000000 [ 15.779441][ T183] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.779442][ T183] R13: 00007ffaaa885050 R14: 00007ffaab558d9e R15: 00005605f8357ed0 [ 15.779449][ T183]