[ 13.498326][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 13.498346][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.498348][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 13.498350][ T88] preempt_count: 2, expected: 0 [ 13.498351][ T88] RCU nest depth: 0, expected: 0 [ 13.498352][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 13.498354][ T88] #0: ffffffff9ce027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.498366][ T88] #1: ffffffff9cf99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.498371][ T88] #2: ffffffff9cf99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.498375][ T88] #3: ffffffff9ce89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.498379][ T88] #4: ffffffff9ce89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 13.498383][ T88] irq event stamp: 417036 [ 13.498384][ T88] hardirqs last enabled at (417035): [] __down_trylock_console_sem+0x86/0xa0 [ 13.498387][ T88] hardirqs last disabled at (417036): [] console_emit_next_record+0x3f8/0x4f0 [ 13.498389][ T88] softirqs last enabled at (416972): [] netlink_release+0x17b/0xcf0 [ 13.498394][ T88] softirqs last disabled at (416970): [] netlink_release+0xd2/0xcf0 [ 13.498396][ T88] Preemption disabled at: [ 13.498397][ T88] [<0000000000000000>] 0x0 [ 13.498404][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.498408][ T88] Tainted: [W]=WARN [ 13.498408][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.498410][ T88] Call Trace: [ 13.498412][ T88] [ 13.498413][ T88] dump_stack_lvl+0x6f/0xa0 [ 13.498420][ T88] __might_resched.cold+0x1fe/0x2c1 [ 13.498425][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.498429][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 13.498434][ T88] __kmalloc_noprof+0x443/0x760 [ 13.498437][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 13.498443][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 13.498446][ T88] alloc_buf.isra.0+0x4b/0x260 [ 13.498450][ T88] put_chars+0x1e1/0x2f0 [ 13.498453][ T88] ? __send_to_port+0x420/0x420 [ 13.498455][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 13.498459][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 13.498462][ T88] ? validate_chain+0x38b/0xc20 [ 13.498466][ T88] hvc_console_print+0x292/0x780 [ 13.498470][ T88] ? __lock_acquire+0x518/0xc20 [ 13.498472][ T88] ? __lock_acquire+0x518/0xc20 [ 13.498476][ T88] ? hvc_write+0x3a0/0x3a0 [ 13.498480][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.498483][ T88] ? lock_acquire+0x13c/0x160 [ 13.498487][ T88] console_emit_next_record+0x252/0x4f0 [ 13.498491][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 13.498496][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.498498][ T88] ? lock_acquire+0x13c/0x160 [ 13.498502][ T88] console_flush_one_record+0x46f/0x710 [ 13.498506][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 13.498508][ T88] ? __lock_acquire+0x518/0xc20 [ 13.498513][ T88] console_unlock+0xee/0x1f0 [ 13.498517][ T88] ? console_flush_one_record+0x710/0x710 [ 13.498518][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.498521][ T88] ? lock_acquire+0xa0/0x160 [ 13.498524][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.498526][ T88] ? vprintk_emit+0x320/0x3e0 [ 13.498530][ T88] vprintk_emit+0x37c/0x3e0 [ 13.498534][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 13.498537][ T88] ? __lock_acquire+0x518/0xc20 [ 13.498541][ T88] _printk+0xc7/0x100 [ 13.498544][ T88] ? snapshot_read.cold+0x21/0x21 [ 13.498547][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.498550][ T88] ? __rwlock_init+0x150/0x150 [ 13.498554][ T88] ? do_raw_spin_lock+0x131/0x280 [ 13.498557][ T88] do_exit.cold+0x82/0x9c [ 13.498560][ T88] ? exit_notify+0x890/0x890 [ 13.498562][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 13.498565][ T88] ? rcu_is_watching+0x16/0xd0 [ 13.498569][ T88] do_group_exit+0xb8/0x370 [ 13.498572][ T88] __x64_sys_exit_group+0x3c/0x50 [ 13.498574][ T88] x64_sys_call+0x1567/0x1570 [ 13.498576][ T88] do_syscall_64+0xff/0x530 [ 13.498579][ T88] ? common_interrupt+0x5a/0xf0 [ 13.498582][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.498585][ T88] RIP: 0033:0x7ff7b7bdc1b8 [ 13.498587][ T88] Code: Unable to access opcode bytes at 0x7ff7b7bdc18e. [ 13.498588][ T88] RSP: 002b:00007ffd124b3f28 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.498591][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff7b7bdc1b8 [ 13.498592][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.498593][ T88] RBP: 00007ffd124b40b0 R08: 000055e0b562fe38 R09: 0000000000000000 [ 13.498594][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.498595][ T88] R13: 00007ff7b743a050 R14: 00007ff7b810dd9e R15: 000055e0b54db9d0 [ 13.498602][ T88]