[ 14.349859][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 14.349874][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.349876][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 14.349878][ T89] preempt_count: 2, expected: 0 [ 14.349879][ T89] RCU nest depth: 0, expected: 0 [ 14.349880][ T89] locks held by (udev-worker)/89: 5, last CPU#0: [ 14.349882][ T89] #0: ffffffff936027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.349894][ T89] #1: ffffffff93799cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.349899][ T89] #2: ffffffff93799d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.349902][ T89] #3: ffffffff93689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.349905][ T89] #4: ffffffff93689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.349909][ T89] irq event stamp: 711088 [ 14.349910][ T89] hardirqs last enabled at (711087): [] __down_trylock_console_sem+0x86/0xa0 [ 14.349914][ T89] hardirqs last disabled at (711088): [] console_emit_next_record+0x3f8/0x4f0 [ 14.349915][ T89] softirqs last enabled at (711014): [] netlink_release+0x17b/0xcf0 [ 14.349919][ T89] softirqs last disabled at (711012): [] netlink_release+0xd2/0xcf0 [ 14.349921][ T89] Preemption disabled at: [ 14.349922][ T89] [<0000000000000000>] 0x0 [ 14.349929][ T89] CPU: 0 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.349932][ T89] Tainted: [W]=WARN [ 14.349933][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.349935][ T89] Call Trace: [ 14.349936][ T89] [ 14.349938][ T89] dump_stack_lvl+0x6f/0xa0 [ 14.349943][ T89] __might_resched.cold+0x1fe/0x2c1 [ 14.349948][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.349951][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 14.349957][ T89] __kmalloc_noprof+0x443/0x760 [ 14.349959][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 14.349965][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 14.349967][ T89] alloc_buf.isra.0+0x4b/0x260 [ 14.349971][ T89] put_chars+0x1e1/0x2f0 [ 14.349974][ T89] ? __send_to_port+0x420/0x420 [ 14.349976][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 14.349979][ T89] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.349983][ T89] ? validate_chain+0x38b/0xc20 [ 14.349988][ T89] hvc_console_print+0x292/0x780 [ 14.349991][ T89] ? __lock_acquire+0x518/0xc20 [ 14.349993][ T89] ? __lock_acquire+0x518/0xc20 [ 14.349998][ T89] ? hvc_write+0x3a0/0x3a0 [ 14.350001][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.350004][ T89] ? lock_acquire+0x13c/0x160 [ 14.350008][ T89] console_emit_next_record+0x252/0x4f0 [ 14.350011][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 14.350015][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.350017][ T89] ? lock_acquire+0x13c/0x160 [ 14.350021][ T89] console_flush_one_record+0x46f/0x710 [ 14.350024][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 14.350026][ T89] ? __lock_acquire+0x518/0xc20 [ 14.350031][ T89] console_unlock+0xee/0x1f0 [ 14.350033][ T89] ? console_flush_one_record+0x710/0x710 [ 14.350035][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.350036][ T89] ? lock_acquire+0x60/0x160 [ 14.350040][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.350042][ T89] ? vprintk_emit+0x320/0x3e0 [ 14.350045][ T89] vprintk_emit+0x37c/0x3e0 [ 14.350048][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 14.350051][ T89] ? __lock_acquire+0x518/0xc20 [ 14.350055][ T89] _printk+0xc7/0x100 [ 14.350059][ T89] ? snapshot_read.cold+0x21/0x21 [ 14.350061][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.350063][ T89] ? __rwlock_init+0x150/0x150 [ 14.350066][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.350069][ T89] do_exit.cold+0x82/0x9c [ 14.350076][ T89] ? exit_notify+0x890/0x890 [ 14.350078][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 14.350081][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.350084][ T89] do_group_exit+0xb8/0x370 [ 14.350087][ T89] __x64_sys_exit_group+0x3c/0x50 [ 14.350089][ T89] x64_sys_call+0x1567/0x1570 [ 14.350091][ T89] do_syscall_64+0xff/0x530 [ 14.350094][ T89] ? irq_exit_rcu+0x1a/0x30 [ 14.350097][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.350099][ T89] RIP: 0033:0x7f1f0fb791b8 [ 14.350102][ T89] Code: Unable to access opcode bytes at 0x7f1f0fb7918e. [ 14.350103][ T89] RSP: 002b:00007ffc86d95a78 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.350105][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1f0fb791b8 [ 14.350106][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.350107][ T89] RBP: 00007ffc86d95c00 R08: 000055b7c28f9fa8 R09: 0000000000000000 [ 14.350108][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.350109][ T89] R13: 00007f1f0f3d7050 R14: 00007f1f100aad9e R15: 000055b7c2796740 [ 14.350115][ T89]