[ 22.803165][ T181] (udev-worker) (181) used greatest stack depth: 22696 bytes left [ 22.803187][ T181] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 22.803189][ T181] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 181, name: (udev-worker) [ 22.803190][ T181] preempt_count: 2, expected: 0 [ 22.803191][ T181] RCU nest depth: 0, expected: 0 [ 22.803192][ T181] locks held by (udev-worker)/181: 5, last CPU#3: [ 22.803194][ T181] #0: ffffffff9ca027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 22.803206][ T181] #1: ffffffff9cb99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 22.803211][ T181] #2: ffffffff9cb99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 22.803216][ T181] #3: ffffffff9ca89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 22.803220][ T181] #4: ffffffff9ca89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 22.803224][ T181] irq event stamp: 661856 [ 22.803225][ T181] hardirqs last enabled at (661855): [] __down_trylock_console_sem+0x86/0xa0 [ 22.803228][ T181] hardirqs last disabled at (661856): [] console_emit_next_record+0x3f8/0x4f0 [ 22.803230][ T181] softirqs last enabled at (661792): [] netlink_release+0x17b/0xcf0 [ 22.803235][ T181] softirqs last disabled at (661790): [] netlink_release+0xd2/0xcf0 [ 22.803237][ T181] Preemption disabled at: [ 22.803238][ T181] [<0000000000000000>] 0x0 [ 22.803245][ T181] CPU: 3 UID: 0 PID: 181 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 22.803249][ T181] Tainted: [W]=WARN [ 22.803250][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.803252][ T181] Call Trace: [ 22.803254][ T181] [ 22.803256][ T181] dump_stack_lvl+0x6f/0xa0 [ 22.803262][ T181] __might_resched.cold+0x1fe/0x2c1 [ 22.803267][ T181] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 22.803271][ T181] ? __kmalloc_noprof+0xdb/0x760 [ 22.803277][ T181] __kmalloc_noprof+0x443/0x760 [ 22.803279][ T181] ? alloc_buf.isra.0+0x4b/0x260 [ 22.803285][ T181] ? do_raw_spin_unlock+0x59/0x250 [ 22.803288][ T181] alloc_buf.isra.0+0x4b/0x260 [ 22.803292][ T181] put_chars+0x1e1/0x2f0 [ 22.803295][ T181] ? __send_to_port+0x420/0x420 [ 22.803299][ T181] ? printk_get_next_message+0x2fe/0x7d0 [ 22.803303][ T181] ? rcu_read_lock_any_held+0x3c/0x90 [ 22.803307][ T181] ? validate_chain+0x38b/0xc20 [ 22.803312][ T181] hvc_console_print+0x292/0x780 [ 22.803315][ T181] ? __lock_acquire+0x518/0xc20 [ 22.803317][ T181] ? __lock_acquire+0x518/0xc20 [ 22.803321][ T181] ? hvc_write+0x3a0/0x3a0 [ 22.803325][ T181] ? rcu_is_watching+0x16/0xd0 [ 22.803327][ T181] ? lock_acquire+0x13c/0x160 [ 22.803332][ T181] console_emit_next_record+0x252/0x4f0 [ 22.803337][ T181] ? devkmsg_read+0x4e0/0x4e0 [ 22.803344][ T181] ? rcu_is_watching+0x16/0xd0 [ 22.803347][ T181] ? lock_acquire+0x13c/0x160 [ 22.803352][ T181] console_flush_one_record+0x46f/0x710 [ 22.803357][ T181] ? console_emit_next_record+0x4f0/0x4f0 [ 22.803359][ T181] ? __lock_acquire+0x518/0xc20 [ 22.803364][ T181] console_unlock+0xee/0x1f0 [ 22.803367][ T181] ? console_flush_one_record+0x710/0x710 [ 22.803369][ T181] ? rcu_is_watching+0x16/0xd0 [ 22.803371][ T181] ? lock_acquire+0x60/0x160 [ 22.803374][ T181] ? __down_trylock_console_sem+0x5e/0xa0 [ 22.803376][ T181] ? vprintk_emit+0x320/0x3e0 [ 22.803379][ T181] vprintk_emit+0x37c/0x3e0 [ 22.803382][ T181] ? wake_up_klogd_work_func+0x90/0x90 [ 22.803385][ T181] ? __lock_acquire+0x518/0xc20 [ 22.803389][ T181] _printk+0xc7/0x100 [ 22.803392][ T181] ? snapshot_read.cold+0x21/0x21 [ 22.803395][ T181] ? do_raw_spin_lock+0x131/0x280 [ 22.803398][ T181] ? __rwlock_init+0x150/0x150 [ 22.803402][ T181] ? do_raw_spin_lock+0x131/0x280 [ 22.803404][ T181] do_exit.cold+0x82/0x9c [ 22.803408][ T181] ? exit_notify+0x890/0x890 [ 22.803410][ T181] ? __lock_release.isra.0+0x69/0x1a0 [ 22.803413][ T181] ? rcu_is_watching+0x16/0xd0 [ 22.803416][ T181] do_group_exit+0xb8/0x370 [ 22.803419][ T181] __x64_sys_exit_group+0x3c/0x50 [ 22.803421][ T181] x64_sys_call+0x1567/0x1570 [ 22.803423][ T181] do_syscall_64+0xff/0x530 [ 22.803427][ T181] ? exc_page_fault+0xee/0x100 [ 22.803430][ T181] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 22.803432][ T181] RIP: 0033:0x7fda01c171b8 [ 22.803434][ T181] Code: Unable to access opcode bytes at 0x7fda01c1718e. [ 22.803436][ T181] RSP: 002b:00007ffdb96945a8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 22.803438][ T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fda01c171b8 [ 22.803440][ T181] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 22.803441][ T181] RBP: 00007ffdb9694730 R08: 000055d80fdc9d18 R09: 0000000000000000 [ 22.803441][ T181] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 22.803442][ T181] R13: 00007fda01475050 R14: 00007fda02148d9e R15: 000055d80fc5a0a0 [ 22.803449][ T181]