[ 15.954760][ T180] (udev-worker) (180) used greatest stack depth: 22696 bytes left [ 15.954781][ T180] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.954783][ T180] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 180, name: (udev-worker) [ 15.954784][ T180] preempt_count: 2, expected: 0 [ 15.954785][ T180] RCU nest depth: 0, expected: 0 [ 15.954786][ T180] locks held by (udev-worker)/180: 5, last CPU#0: [ 15.954789][ T180] #0: ffffffffa3e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.954800][ T180] #1: ffffffffa3f99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.954805][ T180] #2: ffffffffa3f99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.954810][ T180] #3: ffffffffa3e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.954814][ T180] #4: ffffffffa3e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.954818][ T180] irq event stamp: 89838 [ 15.954819][ T180] hardirqs last enabled at (89837): [] __down_trylock_console_sem+0x86/0xa0 [ 15.954822][ T180] hardirqs last disabled at (89838): [] console_emit_next_record+0x3f8/0x4f0 [ 15.954824][ T180] softirqs last enabled at (89774): [] netlink_release+0x17b/0xcf0 [ 15.954829][ T180] softirqs last disabled at (89772): [] netlink_release+0xd2/0xcf0 [ 15.954832][ T180] Preemption disabled at: [ 15.954832][ T180] [<0000000000000000>] 0x0 [ 15.954839][ T180] CPU: 0 UID: 0 PID: 180 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.954843][ T180] Tainted: [W]=WARN [ 15.954844][ T180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.954847][ T180] Call Trace: [ 15.954848][ T180] [ 15.954850][ T180] dump_stack_lvl+0x6f/0xa0 [ 15.954857][ T180] __might_resched.cold+0x1fe/0x2c1 [ 15.954862][ T180] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.954866][ T180] ? __kmalloc_noprof+0xdb/0x760 [ 15.954872][ T180] __kmalloc_noprof+0x443/0x760 [ 15.954875][ T180] ? alloc_buf.isra.0+0x4b/0x260 [ 15.954881][ T180] ? do_raw_spin_unlock+0x59/0x250 [ 15.954884][ T180] alloc_buf.isra.0+0x4b/0x260 [ 15.954888][ T180] put_chars+0x1e1/0x2f0 [ 15.954891][ T180] ? __send_to_port+0x420/0x420 [ 15.954893][ T180] ? printk_get_next_message+0x2fe/0x7d0 [ 15.954897][ T180] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.954901][ T180] ? validate_chain+0x38b/0xc20 [ 15.954905][ T180] hvc_console_print+0x292/0x780 [ 15.954909][ T180] ? __lock_acquire+0x518/0xc20 [ 15.954911][ T180] ? __lock_acquire+0x518/0xc20 [ 15.954916][ T180] ? hvc_write+0x3a0/0x3a0 [ 15.954919][ T180] ? rcu_is_watching+0x16/0xd0 [ 15.954921][ T180] ? lock_acquire+0x13c/0x160 [ 15.954926][ T180] console_emit_next_record+0x252/0x4f0 [ 15.954930][ T180] ? devkmsg_read+0x4e0/0x4e0 [ 15.954935][ T180] ? rcu_is_watching+0x16/0xd0 [ 15.954937][ T180] ? lock_acquire+0x13c/0x160 [ 15.954941][ T180] console_flush_one_record+0x46f/0x710 [ 15.954945][ T180] ? console_emit_next_record+0x4f0/0x4f0 [ 15.954948][ T180] ? __lock_acquire+0x518/0xc20 [ 15.954953][ T180] console_unlock+0xee/0x1f0 [ 15.954956][ T180] ? console_flush_one_record+0x710/0x710 [ 15.954958][ T180] ? rcu_is_watching+0x16/0xd0 [ 15.954960][ T180] ? lock_acquire+0x60/0x160 [ 15.954964][ T180] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.954966][ T180] ? vprintk_emit+0x320/0x3e0 [ 15.954969][ T180] vprintk_emit+0x37c/0x3e0 [ 15.954972][ T180] ? wake_up_klogd_work_func+0x90/0x90 [ 15.954975][ T180] ? __lock_acquire+0x518/0xc20 [ 15.954979][ T180] _printk+0xc7/0x100 [ 15.954985][ T180] ? snapshot_read.cold+0x21/0x21 [ 15.954988][ T180] ? do_raw_spin_lock+0x131/0x280 [ 15.954991][ T180] ? __rwlock_init+0x150/0x150 [ 15.954995][ T180] ? do_raw_spin_lock+0x131/0x280 [ 15.954998][ T180] do_exit.cold+0x82/0x9c [ 15.955002][ T180] ? exit_notify+0x890/0x890 [ 15.955004][ T180] ? __lock_release.isra.0+0x69/0x1a0 [ 15.955007][ T180] ? rcu_is_watching+0x16/0xd0 [ 15.955010][ T180] do_group_exit+0xb8/0x370 [ 15.955013][ T180] __x64_sys_exit_group+0x3c/0x50 [ 15.955015][ T180] x64_sys_call+0x1567/0x1570 [ 15.955018][ T180] do_syscall_64+0xff/0x530 [ 15.955021][ T180] ? exc_page_fault+0xee/0x100 [ 15.955025][ T180] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.955027][ T180] RIP: 0033:0x7fcc6e5c01b8 [ 15.955030][ T180] Code: Unable to access opcode bytes at 0x7fcc6e5c018e. [ 15.955031][ T180] RSP: 002b:00007ffcc729e498 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.955034][ T180] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcc6e5c01b8 [ 15.955035][ T180] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.955036][ T180] RBP: 00007ffcc729e620 R08: 00005623826bd168 R09: 0000000000000000 [ 15.955037][ T180] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.955038][ T180] R13: 00007fcc6de1e050 R14: 00007fcc6eaf1d9e R15: 000056238269ec50 [ 15.955045][ T180]