[ 12.092321][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 12.092339][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.092341][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 12.092343][ T83] preempt_count: 2, expected: 0 [ 12.092344][ T83] RCU nest depth: 0, expected: 0 [ 12.092345][ T83] locks held by (udev-worker)/83: 5, last CPU#2: [ 12.092346][ T83] #0: ffffffff9f8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.092358][ T83] #1: ffffffff9f999dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.092363][ T83] #2: ffffffff9f999e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.092367][ T83] #3: ffffffff9f889760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.092371][ T83] #4: ffffffff9f889660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.092375][ T83] irq event stamp: 381226 [ 12.092375][ T83] hardirqs last enabled at (381225): [] __down_trylock_console_sem+0x86/0xa0 [ 12.092378][ T83] hardirqs last disabled at (381226): [] console_emit_next_record+0x3f8/0x4f0 [ 12.092380][ T83] softirqs last enabled at (381162): [] netlink_release+0x17b/0xcf0 [ 12.092384][ T83] softirqs last disabled at (381160): [] netlink_release+0xd2/0xcf0 [ 12.092387][ T83] Preemption disabled at: [ 12.092387][ T83] [<0000000000000000>] 0x0 [ 12.092394][ T83] CPU: 2 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.092398][ T83] Tainted: [W]=WARN [ 12.092399][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.092400][ T83] Call Trace: [ 12.092402][ T83] [ 12.092403][ T83] dump_stack_lvl+0x6f/0xa0 [ 12.092409][ T83] __might_resched.cold+0x1fe/0x2c1 [ 12.092414][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.092418][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 12.092423][ T83] __kmalloc_noprof+0x443/0x760 [ 12.092425][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 12.092432][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 12.092434][ T83] alloc_buf.isra.0+0x4b/0x260 [ 12.092438][ T83] put_chars+0x1e1/0x2f0 [ 12.092441][ T83] ? __send_to_port+0x420/0x420 [ 12.092443][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 12.092446][ T83] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.092449][ T83] ? validate_chain+0x38b/0xc20 [ 12.092453][ T83] hvc_console_print+0x292/0x780 [ 12.092457][ T83] ? __lock_acquire+0x518/0xc20 [ 12.092459][ T83] ? __lock_acquire+0x518/0xc20 [ 12.092463][ T83] ? hvc_write+0x3a0/0x3a0 [ 12.092467][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.092470][ T83] ? lock_acquire+0x13c/0x160 [ 12.092474][ T83] console_emit_next_record+0x252/0x4f0 [ 12.092478][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 12.092482][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.092484][ T83] ? lock_acquire+0x13c/0x160 [ 12.092488][ T83] console_flush_one_record+0x46f/0x710 [ 12.092492][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 12.092494][ T83] ? __lock_acquire+0x518/0xc20 [ 12.092499][ T83] console_unlock+0xee/0x1f0 [ 12.092502][ T83] ? console_flush_one_record+0x710/0x710 [ 12.092504][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.092506][ T83] ? lock_acquire+0xa0/0x160 [ 12.092510][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.092511][ T83] ? vprintk_emit+0x320/0x3e0 [ 12.092514][ T83] vprintk_emit+0x37c/0x3e0 [ 12.092518][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 12.092522][ T83] ? __lock_acquire+0x518/0xc20 [ 12.092525][ T83] _printk+0xc7/0x100 [ 12.092529][ T83] ? snapshot_read.cold+0x21/0x21 [ 12.092531][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.092534][ T83] ? __rwlock_init+0x150/0x150 [ 12.092538][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.092540][ T83] do_exit.cold+0x82/0x9c [ 12.092544][ T83] ? exit_notify+0x890/0x890 [ 12.092545][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 12.092548][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.092552][ T83] do_group_exit+0xb8/0x370 [ 12.092555][ T83] __x64_sys_exit_group+0x3c/0x50 [ 12.092556][ T83] x64_sys_call+0x1567/0x1570 [ 12.092559][ T83] do_syscall_64+0xff/0x530 [ 12.092563][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.092565][ T83] RIP: 0033:0x7f9e16f421b8 [ 12.092567][ T83] Code: Unable to access opcode bytes at 0x7f9e16f4218e. [ 12.092569][ T83] RSP: 002b:00007ffe511a0c78 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.092571][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9e16f421b8 [ 12.092572][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.092573][ T83] RBP: 00007ffe511a0e00 R08: 0000556e16fb8988 R09: 0000000000000000 [ 12.092574][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.092575][ T83] R13: 00007f9e167a0050 R14: 00007f9e17473d9e R15: 0000556e16fba100 [ 12.092582][ T83]