[ 12.002191][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 12.002208][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.002210][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 12.002211][ T84] preempt_count: 2, expected: 0 [ 12.002212][ T84] RCU nest depth: 0, expected: 0 [ 12.002213][ T84] locks held by (udev-worker)/84: 5, last CPU#1: [ 12.002215][ T84] #0: ffffffffade027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.002226][ T84] #1: ffffffffadf99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.002231][ T84] #2: ffffffffadf99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.002235][ T84] #3: ffffffffade89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.002239][ T84] #4: ffffffffade89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.002243][ T84] irq event stamp: 387450 [ 12.002244][ T84] hardirqs last enabled at (387449): [] __down_trylock_console_sem+0x86/0xa0 [ 12.002246][ T84] hardirqs last disabled at (387450): [] console_emit_next_record+0x3f8/0x4f0 [ 12.002248][ T84] softirqs last enabled at (387386): [] netlink_release+0x17b/0xcf0 [ 12.002253][ T84] softirqs last disabled at (387384): [] netlink_release+0xd2/0xcf0 [ 12.002255][ T84] Preemption disabled at: [ 12.002256][ T84] [<0000000000000000>] 0x0 [ 12.002262][ T84] CPU: 1 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.002266][ T84] Tainted: [W]=WARN [ 12.002267][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.002269][ T84] Call Trace: [ 12.002270][ T84] [ 12.002271][ T84] dump_stack_lvl+0x6f/0xa0 [ 12.002278][ T84] __might_resched.cold+0x1fe/0x2c1 [ 12.002282][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.002286][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 12.002291][ T84] __kmalloc_noprof+0x443/0x760 [ 12.002293][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 12.002300][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 12.002302][ T84] alloc_buf.isra.0+0x4b/0x260 [ 12.002306][ T84] put_chars+0x1e1/0x2f0 [ 12.002309][ T84] ? __send_to_port+0x420/0x420 [ 12.002311][ T84] ? printk_get_next_message+0x2fe/0x7d0 [ 12.002314][ T84] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.002317][ T84] ? validate_chain+0x38b/0xc20 [ 12.002321][ T84] hvc_console_print+0x292/0x780 [ 12.002325][ T84] ? __lock_acquire+0x518/0xc20 [ 12.002327][ T84] ? __lock_acquire+0x518/0xc20 [ 12.002331][ T84] ? hvc_write+0x3a0/0x3a0 [ 12.002334][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.002337][ T84] ? lock_acquire+0x13c/0x160 [ 12.002341][ T84] console_emit_next_record+0x252/0x4f0 [ 12.002345][ T84] ? devkmsg_read+0x4e0/0x4e0 [ 12.002349][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.002351][ T84] ? lock_acquire+0x13c/0x160 [ 12.002355][ T84] console_flush_one_record+0x46f/0x710 [ 12.002359][ T84] ? console_emit_next_record+0x4f0/0x4f0 [ 12.002361][ T84] ? __lock_acquire+0x518/0xc20 [ 12.002365][ T84] console_unlock+0xee/0x1f0 [ 12.002368][ T84] ? console_flush_one_record+0x710/0x710 [ 12.002370][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.002372][ T84] ? lock_acquire+0xa0/0x160 [ 12.002376][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.002377][ T84] ? vprintk_emit+0x320/0x3e0 [ 12.002380][ T84] vprintk_emit+0x37c/0x3e0 [ 12.002384][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 12.002388][ T84] ? __lock_acquire+0x518/0xc20 [ 12.002391][ T84] _printk+0xc7/0x100 [ 12.002395][ T84] ? snapshot_read.cold+0x21/0x21 [ 12.002397][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.002400][ T84] ? __rwlock_init+0x150/0x150 [ 12.002403][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.002406][ T84] do_exit.cold+0x82/0x9c [ 12.002410][ T84] ? exit_notify+0x890/0x890 [ 12.002411][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 12.002413][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.002417][ T84] do_group_exit+0xb8/0x370 [ 12.002420][ T84] __x64_sys_exit_group+0x3c/0x50 [ 12.002422][ T84] x64_sys_call+0x1567/0x1570 [ 12.002424][ T84] do_syscall_64+0xff/0x530 [ 12.002427][ T84] ? exc_page_fault+0xee/0x100 [ 12.002430][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.002432][ T84] RIP: 0033:0x7f39c22341b8 [ 12.002434][ T84] Code: Unable to access opcode bytes at 0x7f39c223418e. [ 12.002436][ T84] RSP: 002b:00007fff542d0fe8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.002438][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f39c22341b8 [ 12.002439][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.002440][ T84] RBP: 00007fff542d1170 R08: 0000563030523988 R09: 0000000000000000 [ 12.002441][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.002442][ T84] R13: 00007f39c1a92050 R14: 00007f39c2765d9e R15: 000056303052d390 [ 12.002448][ T84]