[ 45.024897][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 45.024916][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 45.024918][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 45.024920][ T83] preempt_count: 2, expected: 0 [ 45.024921][ T83] RCU nest depth: 0, expected: 0 [ 45.024922][ T83] INFO: lockdep is turned off. [ 45.024923][ T83] irq event stamp: 714288 [ 45.024924][ T83] hardirqs last enabled at (714287): [] _raw_spin_unlock_irq+0x28/0x50 [ 45.024934][ T83] hardirqs last disabled at (714288): [] __schedule+0x1246/0x20e0 [ 45.024936][ T83] softirqs last enabled at (714224): [] unix_release_sock+0x446/0xe50 [ 45.024939][ T83] softirqs last disabled at (714222): [] unix_release_sock+0x39f/0xe50 [ 45.024941][ T83] Preemption disabled at: [ 45.024942][ T83] [<0000000000000000>] 0x0 [ 45.024948][ T83] CPU: 1 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 45.024952][ T83] Tainted: [W]=WARN [ 45.024953][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 45.024955][ T83] Call Trace: [ 45.024957][ T83] [ 45.024958][ T83] dump_stack_lvl+0x6f/0xa0 [ 45.024964][ T83] __might_resched.cold+0x1fe/0x2c1 [ 45.024968][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 45.024971][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.024975][ T83] __kmalloc_noprof+0x443/0x760 [ 45.024978][ T83] ? __rwlock_init+0x150/0x150 [ 45.024981][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 45.024984][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 45.024986][ T83] alloc_buf.isra.0+0x4b/0x260 [ 45.024988][ T83] put_chars+0x1e1/0x2f0 [ 45.024990][ T83] ? __send_to_port+0x420/0x420 [ 45.024991][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 45.024994][ T83] ? console_prepend_replay+0x20/0x20 [ 45.024996][ T83] ? desc_read+0x219/0x2f0 [ 45.024998][ T83] hvc_console_print+0x292/0x780 [ 45.025002][ T83] ? hvc_write+0x3a0/0x3a0 [ 45.025003][ T83] ? __rwlock_init+0x150/0x150 [ 45.025005][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025006][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025008][ T83] ? lock_acquire+0x13c/0x160 [ 45.025009][ T83] console_emit_next_record+0x252/0x4f0 [ 45.025012][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 45.025013][ T83] ? _prb_read_valid+0x6e0/0x6e0 [ 45.025015][ T83] ? __asan_memmove+0x3c/0x60 [ 45.025018][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025020][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025021][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025023][ T83] ? lock_acquire+0x13c/0x160 [ 45.025024][ T83] ? console_flush_one_record+0x111/0x710 [ 45.025026][ T83] console_flush_one_record+0x46f/0x710 [ 45.025028][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 45.025031][ T83] console_unlock+0xee/0x1f0 [ 45.025032][ T83] ? lock_acquire+0x13c/0x160 [ 45.025034][ T83] ? console_flush_one_record+0x710/0x710 [ 45.025035][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025036][ T83] ? lock_release+0x184/0x1f0 [ 45.025038][ T83] ? lock_acquire+0x60/0x160 [ 45.025039][ T83] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 45.025041][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 45.025043][ T83] ? vprintk_emit+0x320/0x3e0 [ 45.025045][ T83] vprintk_emit+0x37c/0x3e0 [ 45.025047][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 45.025049][ T83] ? do_raw_read_unlock+0x70/0x70 [ 45.025050][ T83] ? forget_original_parent+0x5c/0xdb0 [ 45.025054][ T83] _printk+0xc7/0x100 [ 45.025057][ T83] ? snapshot_read.cold+0x21/0x21 [ 45.025059][ T83] ? do_raw_spin_lock+0x131/0x280 [ 45.025060][ T83] ? do_raw_spin_lock+0x131/0x280 [ 45.025062][ T83] ? __rwlock_init+0x150/0x150 [ 45.025064][ T83] ? do_raw_spin_lock+0x131/0x280 [ 45.025065][ T83] do_exit.cold+0x82/0x9c [ 45.025068][ T83] ? vfs_read+0x3dd/0x7b0 [ 45.025071][ T83] ? exit_notify+0x890/0x890 [ 45.025073][ T83] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 45.025076][ T83] ? rcu_is_watching+0x16/0xd0 [ 45.025078][ T83] do_group_exit+0xb8/0x370 [ 45.025080][ T83] __x64_sys_exit_group+0x3c/0x50 [ 45.025082][ T83] x64_sys_call+0x1567/0x1570 [ 45.025084][ T83] do_syscall_64+0xff/0x530 [ 45.025087][ T83] ? irq_exit_rcu+0x1a/0x30 [ 45.025089][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 45.025092][ T83] RIP: 0033:0x7f1430cb11b8 [ 45.025094][ T83] Code: Unable to access opcode bytes at 0x7f1430cb118e. [ 45.025095][ T83] RSP: 002b:00007ffe1e509bc8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 45.025099][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1430cb11b8 [ 45.025100][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 45.025101][ T83] RBP: 00007ffe1e509d50 R08: 000055793aa9b378 R09: 0000000000000000 [ 45.025102][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 45.025103][ T83] R13: 00007f143050f050 R14: 00007f14311e2d9e R15: 000055793abd56f0 [ 45.025105][ T83]