[ 13.024080][ T87] (udev-worker) (87) used greatest stack depth: 22696 bytes left [ 13.024098][ T87] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.024100][ T87] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 87, name: (udev-worker) [ 13.024101][ T87] preempt_count: 2, expected: 0 [ 13.024102][ T87] RCU nest depth: 0, expected: 0 [ 13.024103][ T87] locks held by (udev-worker)/87: 5, last CPU#0: [ 13.024105][ T87] #0: ffffffff864027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.024117][ T87] #1: ffffffff86599cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.024123][ T87] #2: ffffffff86599d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.024127][ T87] #3: ffffffff86489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.024131][ T87] #4: ffffffff86489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 13.024134][ T87] irq event stamp: 436576 [ 13.024135][ T87] hardirqs last enabled at (436575): [] __down_trylock_console_sem+0x86/0xa0 [ 13.024137][ T87] hardirqs last disabled at (436576): [] console_emit_next_record+0x3f8/0x4f0 [ 13.024144][ T87] softirqs last enabled at (436512): [] netlink_release+0x17b/0xcf0 [ 13.024148][ T87] softirqs last disabled at (436510): [] netlink_release+0xd2/0xcf0 [ 13.024151][ T87] Preemption disabled at: [ 13.024152][ T87] [<0000000000000000>] 0x0 [ 13.024158][ T87] CPU: 0 UID: 0 PID: 87 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.024162][ T87] Tainted: [W]=WARN [ 13.024163][ T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.024165][ T87] Call Trace: [ 13.024166][ T87] [ 13.024168][ T87] dump_stack_lvl+0x6f/0xa0 [ 13.024174][ T87] __might_resched.cold+0x1fe/0x2c1 [ 13.024179][ T87] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.024182][ T87] ? __kmalloc_noprof+0xdb/0x760 [ 13.024187][ T87] __kmalloc_noprof+0x443/0x760 [ 13.024189][ T87] ? alloc_buf.isra.0+0x4b/0x260 [ 13.024194][ T87] ? do_raw_spin_unlock+0x59/0x250 [ 13.024196][ T87] alloc_buf.isra.0+0x4b/0x260 [ 13.024199][ T87] put_chars+0x1e1/0x2f0 [ 13.024202][ T87] ? __send_to_port+0x420/0x420 [ 13.024203][ T87] ? printk_get_next_message+0x2fe/0x7d0 [ 13.024206][ T87] ? rcu_read_lock_any_held+0x3c/0x90 [ 13.024209][ T87] ? validate_chain+0x38b/0xc20 [ 13.024213][ T87] hvc_console_print+0x292/0x780 [ 13.024216][ T87] ? __lock_acquire+0x518/0xc20 [ 13.024218][ T87] ? __lock_acquire+0x518/0xc20 [ 13.024221][ T87] ? hvc_write+0x3a0/0x3a0 [ 13.024224][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.024227][ T87] ? lock_acquire+0x13c/0x160 [ 13.024231][ T87] console_emit_next_record+0x252/0x4f0 [ 13.024234][ T87] ? devkmsg_read+0x4e0/0x4e0 [ 13.024238][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.024240][ T87] ? lock_acquire+0x13c/0x160 [ 13.024244][ T87] console_flush_one_record+0x46f/0x710 [ 13.024248][ T87] ? console_emit_next_record+0x4f0/0x4f0 [ 13.024249][ T87] ? __lock_acquire+0x518/0xc20 [ 13.024254][ T87] console_unlock+0xee/0x1f0 [ 13.024256][ T87] ? console_flush_one_record+0x710/0x710 [ 13.024258][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.024260][ T87] ? lock_acquire+0x60/0x160 [ 13.024263][ T87] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.024264][ T87] ? vprintk_emit+0x320/0x3e0 [ 13.024267][ T87] vprintk_emit+0x37c/0x3e0 [ 13.024271][ T87] ? wake_up_klogd_work_func+0x90/0x90 [ 13.024274][ T87] ? __lock_acquire+0x518/0xc20 [ 13.024277][ T87] _printk+0xc7/0x100 [ 13.024281][ T87] ? snapshot_read.cold+0x21/0x21 [ 13.024284][ T87] ? do_raw_spin_lock+0x131/0x280 [ 13.024286][ T87] ? __rwlock_init+0x150/0x150 [ 13.024289][ T87] ? do_raw_spin_lock+0x131/0x280 [ 13.024292][ T87] do_exit.cold+0x82/0x9c [ 13.024295][ T87] ? exit_notify+0x890/0x890 [ 13.024297][ T87] ? __lock_release.isra.0+0x69/0x1a0 [ 13.024299][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.024303][ T87] do_group_exit+0xb8/0x370 [ 13.024306][ T87] __x64_sys_exit_group+0x3c/0x50 [ 13.024309][ T87] x64_sys_call+0x1567/0x1570 [ 13.024311][ T87] do_syscall_64+0xff/0x530 [ 13.024314][ T87] ? irq_exit_rcu+0x1a/0x30 [ 13.024317][ T87] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.024319][ T87] RIP: 0033:0x7fa5a9aba1b8 [ 13.024321][ T87] Code: Unable to access opcode bytes at 0x7fa5a9aba18e. [ 13.024322][ T87] RSP: 002b:00007ffc56cd2728 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.024324][ T87] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa5a9aba1b8 [ 13.024326][ T87] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.024327][ T87] RBP: 00007ffc56cd28b0 R08: 0000563ba5fe0138 R09: 0000000000000000 [ 13.024327][ T87] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.024328][ T87] R13: 00007fa5a9318050 R14: 00007fa5a9febd9e R15: 0000563ba5e83250 [ 13.024335][ T87]