[ 41.760960][ T200] (udev-worker) (200) used greatest stack depth: 22696 bytes left [ 41.760979][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 41.760981][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: (udev-worker) [ 41.760983][ T200] preempt_count: 2, expected: 0 [ 41.760984][ T200] RCU nest depth: 0, expected: 0 [ 41.760984][ T200] INFO: lockdep is turned off. [ 41.760986][ T200] irq event stamp: 3375670 [ 41.760987][ T200] hardirqs last enabled at (3375669): [] irqentry_exit+0x21c/0x790 [ 41.760996][ T200] hardirqs last disabled at (3375670): [] sysvec_apic_timer_interrupt+0x12/0xe0 [ 41.760998][ T200] softirqs last enabled at (3375646): [] netif_change_name+0x216/0x8c0 [ 41.761003][ T200] softirqs last disabled at (3375644): [] netif_change_name+0x1ad/0x8c0 [ 41.761005][ T200] Preemption disabled at: [ 41.761006][ T200] [<0000000000000000>] 0x0 [ 41.761012][ T200] CPU: 2 UID: 0 PID: 200 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 41.761016][ T200] Tainted: [W]=WARN [ 41.761017][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.761018][ T200] Call Trace: [ 41.761020][ T200] [ 41.761021][ T200] dump_stack_lvl+0x6f/0xa0 [ 41.761028][ T200] __might_resched.cold+0x1fe/0x2c1 [ 41.761032][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 41.761036][ T200] ? __asan_memcpy+0x3c/0x60 [ 41.761039][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761042][ T200] __kmalloc_noprof+0x443/0x760 [ 41.761045][ T200] ? __rwlock_init+0x150/0x150 [ 41.761048][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 41.761053][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 41.761054][ T200] alloc_buf.isra.0+0x4b/0x260 [ 41.761057][ T200] put_chars+0x1e1/0x2f0 [ 41.761059][ T200] ? __send_to_port+0x420/0x420 [ 41.761060][ T200] ? console_prepend_replay+0x20/0x20 [ 41.761064][ T200] hvc_console_print+0x292/0x780 [ 41.761068][ T200] ? hvc_write+0x3a0/0x3a0 [ 41.761071][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761072][ T200] ? lock_acquire+0x13c/0x160 [ 41.761074][ T200] console_emit_next_record+0x22f/0x4c0 [ 41.761077][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 41.761079][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761080][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761081][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761082][ T200] ? lock_acquire+0x13c/0x160 [ 41.761085][ T200] ? console_flush_one_record+0x111/0x710 [ 41.761086][ T200] console_flush_one_record+0x46f/0x710 [ 41.761089][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 41.761092][ T200] console_unlock+0xee/0x1f0 [ 41.761094][ T200] ? lock_acquire+0x13c/0x160 [ 41.761095][ T200] ? console_flush_one_record+0x710/0x710 [ 41.761097][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761098][ T200] ? lock_release+0x184/0x1f0 [ 41.761100][ T200] ? lock_acquire+0xe0/0x160 [ 41.761101][ T200] ? __rcu_read_lock+0x70/0x70 [ 41.761103][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 41.761105][ T200] ? vprintk_emit+0x320/0x3e0 [ 41.761106][ T200] vprintk_emit+0x37c/0x3e0 [ 41.761108][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 41.761109][ T200] ? do_raw_read_unlock+0x70/0x70 [ 41.761111][ T200] ? forget_original_parent+0x5c/0xdb0 [ 41.761114][ T200] _printk+0xc7/0x100 [ 41.761118][ T200] ? snapshot_read.cold+0x21/0x21 [ 41.761119][ T200] ? do_raw_spin_lock+0x131/0x280 [ 41.761121][ T200] ? do_raw_spin_lock+0x131/0x280 [ 41.761123][ T200] ? __rwlock_init+0x150/0x150 [ 41.761125][ T200] ? do_raw_spin_lock+0x131/0x280 [ 41.761127][ T200] do_exit.cold+0x82/0x9c [ 41.761130][ T200] ? vfs_read+0x385/0x520 [ 41.761133][ T200] ? exit_notify+0x890/0x890 [ 41.761134][ T200] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 41.761136][ T200] ? rcu_is_watching+0x16/0xd0 [ 41.761138][ T200] do_group_exit+0xb8/0x370 [ 41.761140][ T200] __x64_sys_exit_group+0x3c/0x50 [ 41.761141][ T200] x64_sys_call+0x1567/0x1570 [ 41.761144][ T200] do_syscall_64+0xff/0x530 [ 41.761146][ T200] ? irq_exit_rcu+0x1a/0x30 [ 41.761149][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 41.761151][ T200] RIP: 0033:0x7fe0556441b8 [ 41.761153][ T200] Code: Unable to access opcode bytes at 0x7fe05564418e. [ 41.761154][ T200] RSP: 002b:00007ffd6a0784d8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 41.761158][ T200] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe0556441b8 [ 41.761159][ T200] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 41.761160][ T200] RBP: 00007ffd6a078660 R08: 000055d81b8864e8 R09: 0000000000000000 [ 41.761161][ T200] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 41.761162][ T200] R13: 00007fe054ea2050 R14: 00007fe055b75d9e R15: 000055d81b6f6e10 [ 41.761164][ T200]