[ 11.287399][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 11.287418][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.287420][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 11.287421][ T83] preempt_count: 2, expected: 0 [ 11.287422][ T83] RCU nest depth: 0, expected: 0 [ 11.287423][ T83] locks held by (udev-worker)/83: 5, last CPU#2: [ 11.287425][ T83] #0: ffffffffbbe027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.287437][ T83] #1: ffffffffbbf99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.287443][ T83] #2: ffffffffbbf99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.287447][ T83] #3: ffffffffbbe89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.287451][ T83] #4: ffffffffbbe89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 11.287455][ T83] irq event stamp: 467522 [ 11.287456][ T83] hardirqs last enabled at (467521): [] __down_trylock_console_sem+0x86/0xa0 [ 11.287458][ T83] hardirqs last disabled at (467522): [] console_emit_next_record+0x3f8/0x4f0 [ 11.287460][ T83] softirqs last enabled at (467458): [] netlink_release+0x17b/0xcf0 [ 11.287465][ T83] softirqs last disabled at (467456): [] netlink_release+0xd2/0xcf0 [ 11.287468][ T83] Preemption disabled at: [ 11.287469][ T83] [<0000000000000000>] 0x0 [ 11.287477][ T83] CPU: 2 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.287481][ T83] Tainted: [W]=WARN [ 11.287482][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.287484][ T83] Call Trace: [ 11.287486][ T83] [ 11.287488][ T83] dump_stack_lvl+0x6f/0xa0 [ 11.287496][ T83] __might_resched.cold+0x1fe/0x2c1 [ 11.287502][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.287507][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 11.287513][ T83] __kmalloc_noprof+0x443/0x760 [ 11.287517][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 11.287525][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 11.287528][ T83] alloc_buf.isra.0+0x4b/0x260 [ 11.287533][ T83] put_chars+0x1e1/0x2f0 [ 11.287538][ T83] ? __send_to_port+0x420/0x420 [ 11.287540][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 11.287545][ T83] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.287549][ T83] ? validate_chain+0x38b/0xc20 [ 11.287555][ T83] hvc_console_print+0x292/0x780 [ 11.287559][ T83] ? __lock_acquire+0x518/0xc20 [ 11.287561][ T83] ? __lock_acquire+0x518/0xc20 [ 11.287566][ T83] ? hvc_write+0x3a0/0x3a0 [ 11.287571][ T83] ? rcu_is_watching+0x16/0xd0 [ 11.287574][ T83] ? lock_acquire+0x13c/0x160 [ 11.287579][ T83] console_emit_next_record+0x252/0x4f0 [ 11.287584][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 11.287589][ T83] ? rcu_is_watching+0x16/0xd0 [ 11.287592][ T83] ? lock_acquire+0x13c/0x160 [ 11.287597][ T83] console_flush_one_record+0x46f/0x710 [ 11.287601][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 11.287604][ T83] ? __lock_acquire+0x518/0xc20 [ 11.287610][ T83] console_unlock+0xee/0x1f0 [ 11.287613][ T83] ? console_flush_one_record+0x710/0x710 [ 11.287615][ T83] ? rcu_is_watching+0x16/0xd0 [ 11.287618][ T83] ? lock_acquire+0xa0/0x160 [ 11.287622][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.287624][ T83] ? vprintk_emit+0x320/0x3e0 [ 11.287628][ T83] vprintk_emit+0x37c/0x3e0 [ 11.287633][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 11.287637][ T83] ? __lock_acquire+0x518/0xc20 [ 11.287641][ T83] _printk+0xc7/0x100 [ 11.287645][ T83] ? snapshot_read.cold+0x21/0x21 [ 11.287648][ T83] ? do_raw_spin_lock+0x131/0x280 [ 11.287651][ T83] ? __rwlock_init+0x150/0x150 [ 11.287656][ T83] ? do_raw_spin_lock+0x131/0x280 [ 11.287659][ T83] do_exit.cold+0x82/0x9c [ 11.287664][ T83] ? exit_notify+0x890/0x890 [ 11.287665][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 11.287669][ T83] ? rcu_is_watching+0x16/0xd0 [ 11.287674][ T83] do_group_exit+0xb8/0x370 [ 11.287677][ T83] __x64_sys_exit_group+0x3c/0x50 [ 11.287679][ T83] x64_sys_call+0x1567/0x1570 [ 11.287682][ T83] do_syscall_64+0xff/0x530 [ 11.287686][ T83] ? irq_exit_rcu+0x1a/0x30 [ 11.287689][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.287692][ T83] RIP: 0033:0x7fb6a98281b8 [ 11.287695][ T83] Code: Unable to access opcode bytes at 0x7fb6a982818e. [ 11.287696][ T83] RSP: 002b:00007ffebd30bf48 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.287699][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb6a98281b8 [ 11.287700][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.287702][ T83] RBP: 00007ffebd30c0d0 R08: 000055fe3b499678 R09: 0000000000000000 [ 11.287703][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.287704][ T83] R13: 00007fb6a9086050 R14: 00007fb6a9d59d9e R15: 000055fe3b49afe0 [ 11.287712][ T83]