[ 17.398189][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 17.398209][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.398212][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 17.398213][ T89] preempt_count: 2, expected: 0 [ 17.398214][ T89] RCU nest depth: 0, expected: 0 [ 17.398215][ T89] locks held by (udev-worker)/89: 5, last CPU#0: [ 17.398218][ T89] #0: ffffffffb06027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.398230][ T89] #1: ffffffffb0799cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.398235][ T89] #2: ffffffffb0799d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.398239][ T89] #3: ffffffffb0689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.398242][ T89] #4: ffffffffb0689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 17.398246][ T89] irq event stamp: 752712 [ 17.398247][ T89] hardirqs last enabled at (752711): [] __down_trylock_console_sem+0x86/0xa0 [ 17.398249][ T89] hardirqs last disabled at (752712): [] console_emit_next_record+0x3f8/0x4f0 [ 17.398251][ T89] softirqs last enabled at (752648): [] netlink_release+0x17b/0xcf0 [ 17.398255][ T89] softirqs last disabled at (752646): [] netlink_release+0xd2/0xcf0 [ 17.398258][ T89] Preemption disabled at: [ 17.398259][ T89] [<0000000000000000>] 0x0 [ 17.398266][ T89] CPU: 0 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.398270][ T89] Tainted: [W]=WARN [ 17.398270][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.398272][ T89] Call Trace: [ 17.398274][ T89] [ 17.398276][ T89] dump_stack_lvl+0x6f/0xa0 [ 17.398282][ T89] __might_resched.cold+0x1fe/0x2c1 [ 17.398287][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.398291][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 17.398295][ T89] __kmalloc_noprof+0x443/0x760 [ 17.398298][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 17.398303][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 17.398305][ T89] alloc_buf.isra.0+0x4b/0x260 [ 17.398309][ T89] put_chars+0x1e1/0x2f0 [ 17.398311][ T89] ? __send_to_port+0x420/0x420 [ 17.398313][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 17.398316][ T89] ? rcu_read_lock_any_held+0x3c/0x90 [ 17.398319][ T89] ? validate_chain+0x38b/0xc20 [ 17.398323][ T89] hvc_console_print+0x292/0x780 [ 17.398326][ T89] ? __lock_acquire+0x518/0xc20 [ 17.398328][ T89] ? __lock_acquire+0x518/0xc20 [ 17.398332][ T89] ? hvc_write+0x3a0/0x3a0 [ 17.398336][ T89] ? rcu_is_watching+0x16/0xd0 [ 17.398339][ T89] ? lock_acquire+0x13c/0x160 [ 17.398343][ T89] console_emit_next_record+0x252/0x4f0 [ 17.398346][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 17.398351][ T89] ? rcu_is_watching+0x16/0xd0 [ 17.398353][ T89] ? lock_acquire+0x13c/0x160 [ 17.398357][ T89] console_flush_one_record+0x46f/0x710 [ 17.398362][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 17.398363][ T89] ? __lock_acquire+0x518/0xc20 [ 17.398369][ T89] console_unlock+0xee/0x1f0 [ 17.398372][ T89] ? console_flush_one_record+0x710/0x710 [ 17.398373][ T89] ? rcu_is_watching+0x16/0xd0 [ 17.398375][ T89] ? lock_acquire+0x60/0x160 [ 17.398379][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.398381][ T89] ? vprintk_emit+0x320/0x3e0 [ 17.398384][ T89] vprintk_emit+0x37c/0x3e0 [ 17.398388][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 17.398391][ T89] ? __lock_acquire+0x518/0xc20 [ 17.398395][ T89] _printk+0xc7/0x100 [ 17.398399][ T89] ? snapshot_read.cold+0x21/0x21 [ 17.398402][ T89] ? do_raw_spin_lock+0x131/0x280 [ 17.398405][ T89] ? __rwlock_init+0x150/0x150 [ 17.398409][ T89] ? do_raw_spin_lock+0x131/0x280 [ 17.398411][ T89] do_exit.cold+0x82/0x9c [ 17.398415][ T89] ? exit_notify+0x890/0x890 [ 17.398417][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 17.398420][ T89] ? rcu_is_watching+0x16/0xd0 [ 17.398424][ T89] do_group_exit+0xb8/0x370 [ 17.398427][ T89] __x64_sys_exit_group+0x3c/0x50 [ 17.398430][ T89] x64_sys_call+0x1567/0x1570 [ 17.398432][ T89] do_syscall_64+0xff/0x530 [ 17.398435][ T89] ? irq_exit_rcu+0x1a/0x30 [ 17.398439][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.398441][ T89] RIP: 0033:0x7fad0a0bc1b8 [ 17.398444][ T89] Code: Unable to access opcode bytes at 0x7fad0a0bc18e. [ 17.398445][ T89] RSP: 002b:00007ffc783289e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.398448][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fad0a0bc1b8 [ 17.398449][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.398450][ T89] RBP: 00007ffc78328b70 R08: 0000557be913c548 R09: 0000000000000000 [ 17.398451][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.398452][ T89] R13: 00007fad0991a050 R14: 00007fad0a5edd9e R15: 0000557be8fc4c60 [ 17.398459][ T89]