[ 13.589293][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 13.589313][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.589315][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 13.589317][ T88] preempt_count: 2, expected: 0 [ 13.589318][ T88] RCU nest depth: 0, expected: 0 [ 13.589319][ T88] locks held by (udev-worker)/88: 5, last CPU#1: [ 13.589321][ T88] #0: ffffffff896027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.589333][ T88] #1: ffffffff89799dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.589339][ T88] #2: ffffffff89799e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.589343][ T88] #3: ffffffff89689760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.589347][ T88] #4: ffffffff89689660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 13.589352][ T88] irq event stamp: 444364 [ 13.589352][ T88] hardirqs last enabled at (444363): [] __down_trylock_console_sem+0x86/0xa0 [ 13.589355][ T88] hardirqs last disabled at (444364): [] console_emit_next_record+0x3f8/0x4f0 [ 13.589357][ T88] softirqs last enabled at (444300): [] netlink_release+0x17b/0xcf0 [ 13.589362][ T88] softirqs last disabled at (444298): [] netlink_release+0xd2/0xcf0 [ 13.589364][ T88] Preemption disabled at: [ 13.589365][ T88] [<0000000000000000>] 0x0 [ 13.589372][ T88] CPU: 1 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.589376][ T88] Tainted: [W]=WARN [ 13.589377][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.589379][ T88] Call Trace: [ 13.589380][ T88] [ 13.589382][ T88] dump_stack_lvl+0x6f/0xa0 [ 13.589389][ T88] __might_resched.cold+0x1fe/0x2c1 [ 13.589393][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.589398][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 13.589403][ T88] __kmalloc_noprof+0x443/0x760 [ 13.589406][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 13.589413][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 13.589416][ T88] alloc_buf.isra.0+0x4b/0x260 [ 13.589420][ T88] put_chars+0x1e1/0x2f0 [ 13.589424][ T88] ? __send_to_port+0x420/0x420 [ 13.589426][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 13.589429][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 13.589433][ T88] ? validate_chain+0x38b/0xc20 [ 13.589437][ T88] hvc_console_print+0x292/0x780 [ 13.589441][ T88] ? __lock_acquire+0x518/0xc20 [ 13.589443][ T88] ? __lock_acquire+0x518/0xc20 [ 13.589447][ T88] ? hvc_write+0x3a0/0x3a0 [ 13.589451][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.589455][ T88] ? lock_acquire+0x13c/0x160 [ 13.589459][ T88] console_emit_next_record+0x252/0x4f0 [ 13.589463][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 13.589468][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.589470][ T88] ? lock_acquire+0x13c/0x160 [ 13.589474][ T88] console_flush_one_record+0x46f/0x710 [ 13.589479][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 13.589481][ T88] ? __lock_acquire+0x518/0xc20 [ 13.589486][ T88] console_unlock+0xee/0x1f0 [ 13.589489][ T88] ? console_flush_one_record+0x710/0x710 [ 13.589491][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.589494][ T88] ? lock_acquire+0xa0/0x160 [ 13.589497][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.589499][ T88] ? vprintk_emit+0x320/0x3e0 [ 13.589503][ T88] vprintk_emit+0x37c/0x3e0 [ 13.589507][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 13.589511][ T88] ? __lock_acquire+0x518/0xc20 [ 13.589514][ T88] _printk+0xc7/0x100 [ 13.589518][ T88] ? snapshot_read.cold+0x21/0x21 [ 13.589521][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.589524][ T88] ? __rwlock_init+0x150/0x150 [ 13.589528][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.589531][ T88] do_exit.cold+0x82/0x9c [ 13.589535][ T88] ? exit_notify+0x890/0x890 [ 13.589536][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 13.589539][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.589543][ T88] do_group_exit+0xb8/0x370 [ 13.589546][ T88] __x64_sys_exit_group+0x3c/0x50 [ 13.589548][ T88] x64_sys_call+0x1567/0x1570 [ 13.589551][ T88] do_syscall_64+0xff/0x530 [ 13.589554][ T88] ? irq_exit_rcu+0x1a/0x30 [ 13.589558][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.589560][ T88] RIP: 0033:0x7f8930bc91b8 [ 13.589562][ T88] Code: Unable to access opcode bytes at 0x7f8930bc918e. [ 13.589564][ T88] RSP: 002b:00007ffd9286a9e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.589566][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8930bc91b8 [ 13.589568][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.589569][ T88] RBP: 00007ffd9286ab70 R08: 00005646799974b8 R09: 0000000000000000 [ 13.589570][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.589571][ T88] R13: 00007f8930427050 R14: 00007f89310fad9e R15: 0000564679831760 [ 13.589578][ T88]