[ 14.197913][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 14.197933][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.197935][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 14.197937][ T89] preempt_count: 2, expected: 0 [ 14.197938][ T89] RCU nest depth: 0, expected: 0 [ 14.197939][ T89] locks held by (udev-worker)/89: 5, last CPU#1: [ 14.197941][ T89] #0: ffffffff9ee027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.197957][ T89] #1: ffffffff9ef69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.197970][ T89] #2: ffffffff9ef69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.197980][ T89] #3: ffffffff9ee89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.197987][ T89] #4: ffffffff9ee89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.197992][ T89] irq event stamp: 511074 [ 14.197995][ T89] hardirqs last enabled at (511073): [] __down_trylock_console_sem+0x86/0xa0 [ 14.198001][ T89] hardirqs last disabled at (511074): [] console_emit_next_record+0x3d4/0x4c0 [ 14.198004][ T89] softirqs last enabled at (511010): [] netlink_release+0x17b/0xcf0 [ 14.198009][ T89] softirqs last disabled at (511008): [] netlink_release+0xd2/0xcf0 [ 14.198012][ T89] Preemption disabled at: [ 14.198013][ T89] [<0000000000000000>] 0x0 [ 14.198023][ T89] CPU: 1 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.198028][ T89] Tainted: [W]=WARN [ 14.198029][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.198031][ T89] Call Trace: [ 14.198034][ T89] [ 14.198037][ T89] dump_stack_lvl+0x6f/0xa0 [ 14.198045][ T89] __might_resched.cold+0x1fe/0x2c1 [ 14.198051][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.198056][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 14.198062][ T89] __kmalloc_noprof+0x443/0x760 [ 14.198064][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 14.198070][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 14.198072][ T89] alloc_buf.isra.0+0x4b/0x260 [ 14.198076][ T89] put_chars+0x1e1/0x2f0 [ 14.198079][ T89] ? __send_to_port+0x420/0x420 [ 14.198081][ T89] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.198085][ T89] ? validate_chain+0x38b/0xc20 [ 14.198090][ T89] hvc_console_print+0x292/0x780 [ 14.198097][ T89] ? hvc_write+0x3a0/0x3a0 [ 14.198099][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.198102][ T89] ? lock_acquire+0x13c/0x160 [ 14.198105][ T89] console_emit_next_record+0x22f/0x4c0 [ 14.198110][ T89] ? devkmsg_read+0x4b0/0x4b0 [ 14.198112][ T89] ? console_flush_one_record+0x106/0x710 [ 14.198116][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.198119][ T89] ? lock_acquire+0x13c/0x160 [ 14.198127][ T89] console_flush_one_record+0x46f/0x710 [ 14.198139][ T89] ? console_emit_next_record+0x4c0/0x4c0 [ 14.198144][ T89] ? __lock_acquire+0x518/0xc20 [ 14.198153][ T89] console_unlock+0xee/0x1f0 [ 14.198160][ T89] ? console_flush_one_record+0x710/0x710 [ 14.198165][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.198168][ T89] ? lock_acquire+0x60/0x160 [ 14.198174][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.198176][ T89] ? vprintk_emit+0x320/0x3e0 [ 14.198181][ T89] vprintk_emit+0x37c/0x3e0 [ 14.198187][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 14.198193][ T89] ? __lock_acquire+0x518/0xc20 [ 14.198198][ T89] _printk+0xc7/0x100 [ 14.198203][ T89] ? snapshot_read.cold+0x21/0x21 [ 14.198207][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.198211][ T89] ? __rwlock_init+0x150/0x150 [ 14.198216][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.198220][ T89] do_exit.cold+0x82/0x9c [ 14.198225][ T89] ? exit_notify+0x890/0x890 [ 14.198228][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 14.198232][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.198238][ T89] do_group_exit+0xb8/0x370 [ 14.198243][ T89] __x64_sys_exit_group+0x3c/0x50 [ 14.198246][ T89] x64_sys_call+0x1567/0x1570 [ 14.198248][ T89] do_syscall_64+0xff/0x530 [ 14.198253][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.198256][ T89] RIP: 0033:0x7f2195a401b8 [ 14.198259][ T89] Code: Unable to access opcode bytes at 0x7f2195a4018e. [ 14.198260][ T89] RSP: 002b:00007fff99cf0388 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.198267][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2195a401b8 [ 14.198269][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.198271][ T89] RBP: 00007fff99cf0510 R08: 000055f14c3d5468 R09: 0000000000000000 [ 14.198272][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.198273][ T89] R13: 00007f219529e050 R14: 00007f2195f71d9e R15: 000055f14c27c4b0 [ 14.198286][ T89]