[ 15.346287][ T186] (udev-worker) (186) used greatest stack depth: 22696 bytes left [ 15.346308][ T186] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.346311][ T186] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 186, name: (udev-worker) [ 15.346313][ T186] preempt_count: 2, expected: 0 [ 15.346314][ T186] RCU nest depth: 0, expected: 0 [ 15.346315][ T186] locks held by (udev-worker)/186: 5, last CPU#0: [ 15.346317][ T186] #0: ffffffff9f0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.346328][ T186] #1: ffffffff9f199cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.346333][ T186] #2: ffffffff9f199d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.346338][ T186] #3: ffffffff9f089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.346342][ T186] #4: ffffffff9f089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.346346][ T186] irq event stamp: 358620 [ 15.346347][ T186] hardirqs last enabled at (358619): [] __down_trylock_console_sem+0x86/0xa0 [ 15.346350][ T186] hardirqs last disabled at (358620): [] console_emit_next_record+0x3f8/0x4f0 [ 15.346352][ T186] softirqs last enabled at (358556): [] netlink_release+0x17b/0xcf0 [ 15.346357][ T186] softirqs last disabled at (358554): [] netlink_release+0xd2/0xcf0 [ 15.346359][ T186] Preemption disabled at: [ 15.346360][ T186] [<0000000000000000>] 0x0 [ 15.346367][ T186] CPU: 0 UID: 0 PID: 186 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.346371][ T186] Tainted: [W]=WARN [ 15.346372][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.346374][ T186] Call Trace: [ 15.346375][ T186] [ 15.346377][ T186] dump_stack_lvl+0x6f/0xa0 [ 15.346384][ T186] __might_resched.cold+0x1fe/0x2c1 [ 15.346389][ T186] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.346393][ T186] ? __kmalloc_noprof+0xdb/0x760 [ 15.346399][ T186] __kmalloc_noprof+0x443/0x760 [ 15.346402][ T186] ? alloc_buf.isra.0+0x4b/0x260 [ 15.346410][ T186] ? do_raw_spin_unlock+0x59/0x250 [ 15.346413][ T186] alloc_buf.isra.0+0x4b/0x260 [ 15.346417][ T186] put_chars+0x1e1/0x2f0 [ 15.346420][ T186] ? __send_to_port+0x420/0x420 [ 15.346421][ T186] ? printk_get_next_message+0x2fe/0x7d0 [ 15.346425][ T186] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.346429][ T186] ? validate_chain+0x38b/0xc20 [ 15.346433][ T186] hvc_console_print+0x292/0x780 [ 15.346437][ T186] ? __lock_acquire+0x518/0xc20 [ 15.346438][ T186] ? __lock_acquire+0x518/0xc20 [ 15.346443][ T186] ? hvc_write+0x3a0/0x3a0 [ 15.346446][ T186] ? rcu_is_watching+0x16/0xd0 [ 15.346449][ T186] ? lock_acquire+0x13c/0x160 [ 15.346453][ T186] console_emit_next_record+0x252/0x4f0 [ 15.346457][ T186] ? devkmsg_read+0x4e0/0x4e0 [ 15.346461][ T186] ? rcu_is_watching+0x16/0xd0 [ 15.346463][ T186] ? lock_acquire+0x13c/0x160 [ 15.346467][ T186] console_flush_one_record+0x46f/0x710 [ 15.346472][ T186] ? console_emit_next_record+0x4f0/0x4f0 [ 15.346474][ T186] ? __lock_acquire+0x518/0xc20 [ 15.346479][ T186] console_unlock+0xee/0x1f0 [ 15.346482][ T186] ? console_flush_one_record+0x710/0x710 [ 15.346484][ T186] ? rcu_is_watching+0x16/0xd0 [ 15.346486][ T186] ? lock_acquire+0x60/0x160 [ 15.346490][ T186] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.346492][ T186] ? vprintk_emit+0x320/0x3e0 [ 15.346494][ T186] vprintk_emit+0x37c/0x3e0 [ 15.346498][ T186] ? wake_up_klogd_work_func+0x90/0x90 [ 15.346500][ T186] ? __lock_acquire+0x518/0xc20 [ 15.346504][ T186] _printk+0xc7/0x100 [ 15.346508][ T186] ? snapshot_read.cold+0x21/0x21 [ 15.346511][ T186] ? do_raw_spin_lock+0x131/0x280 [ 15.346514][ T186] ? __rwlock_init+0x150/0x150 [ 15.346518][ T186] ? do_raw_spin_lock+0x131/0x280 [ 15.346521][ T186] do_exit.cold+0x82/0x9c [ 15.346525][ T186] ? exit_notify+0x890/0x890 [ 15.346526][ T186] ? __lock_release.isra.0+0x69/0x1a0 [ 15.346529][ T186] ? rcu_is_watching+0x16/0xd0 [ 15.346533][ T186] do_group_exit+0xb8/0x370 [ 15.346535][ T186] __x64_sys_exit_group+0x3c/0x50 [ 15.346537][ T186] x64_sys_call+0x1567/0x1570 [ 15.346540][ T186] do_syscall_64+0xff/0x530 [ 15.346545][ T186] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.346547][ T186] RIP: 0033:0x7efd432d41b8 [ 15.346549][ T186] Code: Unable to access opcode bytes at 0x7efd432d418e. [ 15.346551][ T186] RSP: 002b:00007ffc454f3148 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.346553][ T186] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efd432d41b8 [ 15.346555][ T186] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.346555][ T186] RBP: 00007ffc454f32d0 R08: 000055a3f8e66608 R09: 0000000000000000 [ 15.346556][ T186] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.346557][ T186] R13: 00007efd42b32050 R14: 00007efd43805d9e R15: 000055a3f8e61040 [ 15.346564][ T186]