[ 12.135922][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 12.135939][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.135941][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 12.135943][ T83] preempt_count: 2, expected: 0 [ 12.135944][ T83] RCU nest depth: 0, expected: 0 [ 12.135945][ T83] locks held by (udev-worker)/83: 5, last CPU#0: [ 12.135947][ T83] #0: ffffffff8d0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.135958][ T83] #1: ffffffff8d199dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.135964][ T83] #2: ffffffff8d199e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.135968][ T83] #3: ffffffff8d089760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.135972][ T83] #4: ffffffff8d089660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.135976][ T83] irq event stamp: 374400 [ 12.135977][ T83] hardirqs last enabled at (374399): [] __down_trylock_console_sem+0x86/0xa0 [ 12.135979][ T83] hardirqs last disabled at (374400): [] console_emit_next_record+0x3f8/0x4f0 [ 12.135981][ T83] softirqs last enabled at (374334): [] handle_softirqs+0x67c/0x900 [ 12.135983][ T83] softirqs last disabled at (372965): [] do_softirq+0xac/0xe0 [ 12.135985][ T83] Preemption disabled at: [ 12.135986][ T83] [<0000000000000000>] 0x0 [ 12.135993][ T83] CPU: 0 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.135996][ T83] Tainted: [W]=WARN [ 12.135997][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.135999][ T83] Call Trace: [ 12.136001][ T83] [ 12.136002][ T83] dump_stack_lvl+0x6f/0xa0 [ 12.136008][ T83] __might_resched.cold+0x1fe/0x2c1 [ 12.136013][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.136017][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 12.136022][ T83] __kmalloc_noprof+0x443/0x760 [ 12.136024][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 12.136031][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 12.136033][ T83] alloc_buf.isra.0+0x4b/0x260 [ 12.136037][ T83] put_chars+0x1e1/0x2f0 [ 12.136040][ T83] ? __send_to_port+0x420/0x420 [ 12.136042][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 12.136045][ T83] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.136048][ T83] ? validate_chain+0x38b/0xc20 [ 12.136052][ T83] hvc_console_print+0x292/0x780 [ 12.136056][ T83] ? __lock_acquire+0x518/0xc20 [ 12.136058][ T83] ? __lock_acquire+0x518/0xc20 [ 12.136062][ T83] ? hvc_write+0x3a0/0x3a0 [ 12.136065][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.136069][ T83] ? lock_acquire+0x13c/0x160 [ 12.136073][ T83] console_emit_next_record+0x252/0x4f0 [ 12.136076][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 12.136081][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.136083][ T83] ? lock_acquire+0x13c/0x160 [ 12.136087][ T83] console_flush_one_record+0x46f/0x710 [ 12.136091][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 12.136092][ T83] ? __lock_acquire+0x518/0xc20 [ 12.136097][ T83] console_unlock+0xee/0x1f0 [ 12.136100][ T83] ? console_flush_one_record+0x710/0x710 [ 12.136102][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.136104][ T83] ? lock_acquire+0xa0/0x160 [ 12.136108][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.136109][ T83] ? vprintk_emit+0x320/0x3e0 [ 12.136112][ T83] vprintk_emit+0x37c/0x3e0 [ 12.136116][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 12.136120][ T83] ? __lock_acquire+0x518/0xc20 [ 12.136123][ T83] _printk+0xc7/0x100 [ 12.136127][ T83] ? snapshot_read.cold+0x21/0x21 [ 12.136129][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.136132][ T83] ? __rwlock_init+0x150/0x150 [ 12.136135][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.136138][ T83] do_exit.cold+0x82/0x9c [ 12.136142][ T83] ? exit_notify+0x890/0x890 [ 12.136143][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 12.136145][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.136149][ T83] do_group_exit+0xb8/0x370 [ 12.136152][ T83] __x64_sys_exit_group+0x3c/0x50 [ 12.136154][ T83] x64_sys_call+0x1567/0x1570 [ 12.136156][ T83] do_syscall_64+0xff/0x530 [ 12.136159][ T83] ? exc_page_fault+0xee/0x100 [ 12.136163][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.136165][ T83] RIP: 0033:0x7fddd950f1b8 [ 12.136167][ T83] Code: Unable to access opcode bytes at 0x7fddd950f18e. [ 12.136168][ T83] RSP: 002b:00007ffd395edf18 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.136170][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fddd950f1b8 [ 12.136172][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.136172][ T83] RBP: 00007ffd395ee0a0 R08: 000055d08dad0218 R09: 0000000000000000 [ 12.136173][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.136174][ T83] R13: 00007fddd8d6d050 R14: 00007fddd9a40d9e R15: 000055d08dc06690 [ 12.136181][ T83]