[ 14.508499][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 14.508518][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.508521][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 14.508522][ T86] preempt_count: 2, expected: 0 [ 14.508523][ T86] RCU nest depth: 0, expected: 0 [ 14.508524][ T86] locks held by (udev-worker)/86: 5, last CPU#1: [ 14.508526][ T86] #0: ffffffff97c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.508542][ T86] #1: ffffffff97d99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.508548][ T86] #2: ffffffff97d99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.508552][ T86] #3: ffffffff97c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.508555][ T86] #4: ffffffff97c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.508559][ T86] irq event stamp: 763512 [ 14.508560][ T86] hardirqs last enabled at (763511): [] __down_trylock_console_sem+0x86/0xa0 [ 14.508563][ T86] hardirqs last disabled at (763512): [] console_emit_next_record+0x3f8/0x4f0 [ 14.508565][ T86] softirqs last enabled at (763448): [] netlink_release+0x17b/0xcf0 [ 14.508569][ T86] softirqs last disabled at (763446): [] netlink_release+0xd2/0xcf0 [ 14.508572][ T86] Preemption disabled at: [ 14.508572][ T86] [<0000000000000000>] 0x0 [ 14.508580][ T86] CPU: 1 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.508583][ T86] Tainted: [W]=WARN [ 14.508584][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.508586][ T86] Call Trace: [ 14.508588][ T86] [ 14.508589][ T86] dump_stack_lvl+0x6f/0xa0 [ 14.508595][ T86] __might_resched.cold+0x1fe/0x2c1 [ 14.508600][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.508604][ T86] ? __kmalloc_noprof+0xdb/0x760 [ 14.508609][ T86] __kmalloc_noprof+0x443/0x760 [ 14.508612][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 14.508618][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 14.508620][ T86] alloc_buf.isra.0+0x4b/0x260 [ 14.508624][ T86] put_chars+0x1e1/0x2f0 [ 14.508627][ T86] ? __send_to_port+0x420/0x420 [ 14.508629][ T86] ? printk_get_next_message+0x2fe/0x7d0 [ 14.508632][ T86] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.508636][ T86] ? validate_chain+0x38b/0xc20 [ 14.508641][ T86] hvc_console_print+0x292/0x780 [ 14.508645][ T86] ? __lock_acquire+0x518/0xc20 [ 14.508647][ T86] ? __lock_acquire+0x518/0xc20 [ 14.508652][ T86] ? hvc_write+0x3a0/0x3a0 [ 14.508656][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.508658][ T86] ? lock_acquire+0x13c/0x160 [ 14.508662][ T86] console_emit_next_record+0x252/0x4f0 [ 14.508666][ T86] ? devkmsg_read+0x4e0/0x4e0 [ 14.508670][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.508672][ T86] ? lock_acquire+0x13c/0x160 [ 14.508676][ T86] console_flush_one_record+0x46f/0x710 [ 14.508680][ T86] ? console_emit_next_record+0x4f0/0x4f0 [ 14.508682][ T86] ? __lock_acquire+0x518/0xc20 [ 14.508688][ T86] console_unlock+0xee/0x1f0 [ 14.508690][ T86] ? console_flush_one_record+0x710/0x710 [ 14.508692][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.508694][ T86] ? lock_acquire+0x60/0x160 [ 14.508699][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.508701][ T86] ? vprintk_emit+0x320/0x3e0 [ 14.508704][ T86] vprintk_emit+0x37c/0x3e0 [ 14.508707][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 14.508710][ T86] ? __lock_acquire+0x518/0xc20 [ 14.508715][ T86] _printk+0xc7/0x100 [ 14.508718][ T86] ? snapshot_read.cold+0x21/0x21 [ 14.508721][ T86] ? do_raw_spin_lock+0x131/0x280 [ 14.508724][ T86] ? __rwlock_init+0x150/0x150 [ 14.508727][ T86] ? do_raw_spin_lock+0x131/0x280 [ 14.508730][ T86] do_exit.cold+0x82/0x9c [ 14.508734][ T86] ? exit_notify+0x890/0x890 [ 14.508736][ T86] ? __lock_release.isra.0+0x69/0x1a0 [ 14.508740][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.508744][ T86] do_group_exit+0xb8/0x370 [ 14.508748][ T86] __x64_sys_exit_group+0x3c/0x50 [ 14.508750][ T86] x64_sys_call+0x1567/0x1570 [ 14.508753][ T86] do_syscall_64+0xff/0x530 [ 14.508756][ T86] ? irq_exit_rcu+0x1a/0x30 [ 14.508760][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.508762][ T86] RIP: 0033:0x7f075fd211b8 [ 14.508765][ T86] Code: Unable to access opcode bytes at 0x7f075fd2118e. [ 14.508766][ T86] RSP: 002b:00007ffe36214828 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.508769][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f075fd211b8 [ 14.508770][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.508771][ T86] RBP: 00007ffe362149b0 R08: 0000561f8f98bfc8 R09: 0000000000000000 [ 14.508772][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.508773][ T86] R13: 00007f075f57f050 R14: 00007f0760252d9e R15: 0000561f8f82b650 [ 14.508780][ T86]