[ 11.895261][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 11.895277][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.895279][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 11.895281][ T86] preempt_count: 2, expected: 0 [ 11.895281][ T86] RCU nest depth: 0, expected: 0 [ 11.895282][ T86] locks held by (udev-worker)/86: 5, last CPU#3: [ 11.895284][ T86] #0: ffffffffb90027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.895295][ T86] #1: ffffffffb9199dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.895301][ T86] #2: ffffffffb9199e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.895305][ T86] #3: ffffffffb9089760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.895308][ T86] #4: ffffffffb9089660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 11.895312][ T86] irq event stamp: 394020 [ 11.895313][ T86] hardirqs last enabled at (394019): [] __down_trylock_console_sem+0x86/0xa0 [ 11.895315][ T86] hardirqs last disabled at (394020): [] console_emit_next_record+0x3f8/0x4f0 [ 11.895317][ T86] softirqs last enabled at (393952): [] netlink_release+0x17b/0xcf0 [ 11.895321][ T86] softirqs last disabled at (393950): [] netlink_release+0xd2/0xcf0 [ 11.895324][ T86] Preemption disabled at: [ 11.895325][ T86] [<0000000000000000>] 0x0 [ 11.895331][ T86] CPU: 3 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.895335][ T86] Tainted: [W]=WARN [ 11.895335][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.895337][ T86] Call Trace: [ 11.895338][ T86] [ 11.895340][ T86] dump_stack_lvl+0x6f/0xa0 [ 11.895346][ T86] __might_resched.cold+0x1fe/0x2c1 [ 11.895352][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.895356][ T86] ? __kmalloc_noprof+0xdb/0x760 [ 11.895361][ T86] __kmalloc_noprof+0x443/0x760 [ 11.895363][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 11.895369][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 11.895372][ T86] alloc_buf.isra.0+0x4b/0x260 [ 11.895375][ T86] put_chars+0x1e1/0x2f0 [ 11.895379][ T86] ? __send_to_port+0x420/0x420 [ 11.895381][ T86] ? printk_get_next_message+0x2fe/0x7d0 [ 11.895384][ T86] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.895387][ T86] ? validate_chain+0x38b/0xc20 [ 11.895390][ T86] hvc_console_print+0x292/0x780 [ 11.895394][ T86] ? __lock_acquire+0x518/0xc20 [ 11.895396][ T86] ? __lock_acquire+0x518/0xc20 [ 11.895400][ T86] ? hvc_write+0x3a0/0x3a0 [ 11.895403][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.895406][ T86] ? lock_acquire+0x13c/0x160 [ 11.895410][ T86] console_emit_next_record+0x252/0x4f0 [ 11.895414][ T86] ? devkmsg_read+0x4e0/0x4e0 [ 11.895418][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.895420][ T86] ? lock_acquire+0x13c/0x160 [ 11.895424][ T86] console_flush_one_record+0x46f/0x710 [ 11.895428][ T86] ? console_emit_next_record+0x4f0/0x4f0 [ 11.895430][ T86] ? __lock_acquire+0x518/0xc20 [ 11.895435][ T86] console_unlock+0xee/0x1f0 [ 11.895437][ T86] ? console_flush_one_record+0x710/0x710 [ 11.895439][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.895441][ T86] ? lock_acquire+0xa0/0x160 [ 11.895445][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.895446][ T86] ? vprintk_emit+0x320/0x3e0 [ 11.895449][ T86] vprintk_emit+0x37c/0x3e0 [ 11.895453][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 11.895456][ T86] ? __lock_acquire+0x518/0xc20 [ 11.895460][ T86] _printk+0xc7/0x100 [ 11.895463][ T86] ? snapshot_read.cold+0x21/0x21 [ 11.895466][ T86] ? do_raw_spin_lock+0x131/0x280 [ 11.895468][ T86] ? __rwlock_init+0x150/0x150 [ 11.895472][ T86] ? do_raw_spin_lock+0x131/0x280 [ 11.895474][ T86] do_exit.cold+0x82/0x9c [ 11.895478][ T86] ? exit_notify+0x890/0x890 [ 11.895479][ T86] ? __lock_release.isra.0+0x69/0x1a0 [ 11.895482][ T86] ? rcu_is_watching+0x16/0xd0 [ 11.895486][ T86] do_group_exit+0xb8/0x370 [ 11.895488][ T86] __x64_sys_exit_group+0x3c/0x50 [ 11.895490][ T86] x64_sys_call+0x1567/0x1570 [ 11.895492][ T86] do_syscall_64+0xff/0x530 [ 11.895495][ T86] ? irq_exit_rcu+0x1a/0x30 [ 11.895498][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.895500][ T86] RIP: 0033:0x7fa4622941b8 [ 11.895502][ T86] Code: Unable to access opcode bytes at 0x7fa46229418e. [ 11.895503][ T86] RSP: 002b:00007ffd938b88d8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.895505][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa4622941b8 [ 11.895507][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.895508][ T86] RBP: 00007ffd938b8a60 R08: 000056236509e5e8 R09: 0000000000000000 [ 11.895508][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.895509][ T86] R13: 00007fa461af2050 R14: 00007fa4627c5d9e R15: 0000562364f44290 [ 11.895515][ T86]