[ 14.915363][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 14.915379][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.915381][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 14.915382][ T84] preempt_count: 2, expected: 0 [ 14.915383][ T84] RCU nest depth: 0, expected: 0 [ 14.915384][ T84] locks held by (udev-worker)/84: 5, last CPU#2: [ 14.915386][ T84] #0: ffffffffbac167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.915397][ T84] #1: ffffffffbad7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.915402][ T84] #2: ffffffffbad7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.915406][ T84] #3: ffffffffbac9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.915409][ T84] #4: ffffffffbac9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.915413][ T84] irq event stamp: 439916 [ 14.915414][ T84] hardirqs last enabled at (439915): [] __down_trylock_console_sem+0x86/0xa0 [ 14.915417][ T84] hardirqs last disabled at (439916): [] console_emit_next_record+0x3d4/0x4c0 [ 14.915419][ T84] softirqs last enabled at (439846): [] netlink_release+0x17b/0xcf0 [ 14.915424][ T84] softirqs last disabled at (439844): [] netlink_release+0xd2/0xcf0 [ 14.915426][ T84] Preemption disabled at: [ 14.915427][ T84] [<0000000000000000>] 0x0 [ 14.915433][ T84] CPU: 2 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.915436][ T84] Tainted: [W]=WARN [ 14.915437][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.915439][ T84] Call Trace: [ 14.915440][ T84] [ 14.915442][ T84] dump_stack_lvl+0x6f/0xa0 [ 14.915448][ T84] __might_resched.cold+0x1fe/0x2c1 [ 14.915453][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.915457][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 14.915461][ T84] __kmalloc_noprof+0x443/0x760 [ 14.915463][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 14.915469][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 14.915472][ T84] alloc_buf.isra.0+0x4b/0x260 [ 14.915476][ T84] put_chars+0x1e1/0x2f0 [ 14.915478][ T84] ? __send_to_port+0x420/0x420 [ 14.915479][ T84] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.915483][ T84] ? validate_chain+0x38b/0xc20 [ 14.915488][ T84] hvc_console_print+0x292/0x780 [ 14.915496][ T84] ? hvc_write+0x3a0/0x3a0 [ 14.915498][ T84] ? rcu_is_watching+0x16/0xd0 [ 14.915500][ T84] ? lock_acquire+0x13c/0x160 [ 14.915504][ T84] console_emit_next_record+0x22f/0x4c0 [ 14.915508][ T84] ? devkmsg_read+0x4b0/0x4b0 [ 14.915510][ T84] ? console_flush_one_record+0x106/0x710 [ 14.915513][ T84] ? rcu_is_watching+0x16/0xd0 [ 14.915515][ T84] ? lock_acquire+0x13c/0x160 [ 14.915519][ T84] console_flush_one_record+0x46f/0x710 [ 14.915523][ T84] ? console_emit_next_record+0x4c0/0x4c0 [ 14.915525][ T84] ? __lock_acquire+0x518/0xc20 [ 14.915530][ T84] console_unlock+0xee/0x1f0 [ 14.915532][ T84] ? console_flush_one_record+0x710/0x710 [ 14.915534][ T84] ? rcu_is_watching+0x16/0xd0 [ 14.915536][ T84] ? lock_acquire+0xe0/0x160 [ 14.915539][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.915541][ T84] ? vprintk_emit+0x320/0x3e0 [ 14.915544][ T84] vprintk_emit+0x37c/0x3e0 [ 14.915547][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 14.915550][ T84] ? __lock_acquire+0x518/0xc20 [ 14.915553][ T84] _printk+0xc7/0x100 [ 14.915557][ T84] ? snapshot_read.cold+0x21/0x21 [ 14.915560][ T84] ? do_raw_spin_lock+0x131/0x280 [ 14.915562][ T84] ? __rwlock_init+0x150/0x150 [ 14.915566][ T84] ? do_raw_spin_lock+0x131/0x280 [ 14.915569][ T84] do_exit.cold+0x82/0x9c [ 14.915573][ T84] ? exit_notify+0x890/0x890 [ 14.915574][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 14.915577][ T84] ? rcu_is_watching+0x16/0xd0 [ 14.915580][ T84] do_group_exit+0xb8/0x370 [ 14.915583][ T84] __x64_sys_exit_group+0x3c/0x50 [ 14.915585][ T84] x64_sys_call+0x1567/0x1570 [ 14.915587][ T84] do_syscall_64+0xff/0x530 [ 14.915591][ T84] ? exc_page_fault+0xee/0x100 [ 14.915594][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.915596][ T84] RIP: 0033:0x7faa5e1b91b8 [ 14.915598][ T84] Code: Unable to access opcode bytes at 0x7faa5e1b918e. [ 14.915599][ T84] RSP: 002b:00007ffd7cc07ff8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.915601][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faa5e1b91b8 [ 14.915603][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.915604][ T84] RBP: 00007ffd7cc08180 R08: 000055edea4c6518 R09: 0000000000000000 [ 14.915605][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.915605][ T84] R13: 00007faa5da17050 R14: 00007faa5e6ead9e R15: 000055edea3626b0 [ 14.915612][ T84]