[ 14.977050][ T182] (udev-worker) (182) used greatest stack depth: 22696 bytes left [ 14.977070][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.977072][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: (udev-worker) [ 14.977074][ T182] preempt_count: 2, expected: 0 [ 14.977074][ T182] RCU nest depth: 0, expected: 0 [ 14.977075][ T182] locks held by (udev-worker)/182: 5, last CPU#1: [ 14.977077][ T182] #0: ffffffffa9c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.977089][ T182] #1: ffffffffa9d99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.977094][ T182] #2: ffffffffa9d99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.977099][ T182] #3: ffffffffa9c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.977103][ T182] #4: ffffffffa9c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.977107][ T182] irq event stamp: 139666 [ 14.977108][ T182] hardirqs last enabled at (139665): [] __down_trylock_console_sem+0x86/0xa0 [ 14.977111][ T182] hardirqs last disabled at (139666): [] console_emit_next_record+0x3f8/0x4f0 [ 14.977113][ T182] softirqs last enabled at (139602): [] netlink_release+0x17b/0xcf0 [ 14.977117][ T182] softirqs last disabled at (139600): [] netlink_release+0xd2/0xcf0 [ 14.977120][ T182] Preemption disabled at: [ 14.977121][ T182] [<0000000000000000>] 0x0 [ 14.977127][ T182] CPU: 1 UID: 0 PID: 182 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.977131][ T182] Tainted: [W]=WARN [ 14.977132][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.977133][ T182] Call Trace: [ 14.977135][ T182] [ 14.977137][ T182] dump_stack_lvl+0x6f/0xa0 [ 14.977143][ T182] __might_resched.cold+0x1fe/0x2c1 [ 14.977148][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.977152][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 14.977158][ T182] __kmalloc_noprof+0x443/0x760 [ 14.977160][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 14.977167][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 14.977169][ T182] alloc_buf.isra.0+0x4b/0x260 [ 14.977173][ T182] put_chars+0x1e1/0x2f0 [ 14.977176][ T182] ? __send_to_port+0x420/0x420 [ 14.977178][ T182] ? printk_get_next_message+0x2fe/0x7d0 [ 14.977182][ T182] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.977186][ T182] ? validate_chain+0x38b/0xc20 [ 14.977190][ T182] hvc_console_print+0x292/0x780 [ 14.977194][ T182] ? __lock_acquire+0x518/0xc20 [ 14.977195][ T182] ? __lock_acquire+0x518/0xc20 [ 14.977200][ T182] ? hvc_write+0x3a0/0x3a0 [ 14.977204][ T182] ? rcu_is_watching+0x16/0xd0 [ 14.977206][ T182] ? lock_acquire+0x13c/0x160 [ 14.977210][ T182] console_emit_next_record+0x252/0x4f0 [ 14.977214][ T182] ? devkmsg_read+0x4e0/0x4e0 [ 14.977219][ T182] ? rcu_is_watching+0x16/0xd0 [ 14.977221][ T182] ? lock_acquire+0x13c/0x160 [ 14.977225][ T182] console_flush_one_record+0x46f/0x710 [ 14.977230][ T182] ? console_emit_next_record+0x4f0/0x4f0 [ 14.977232][ T182] ? __lock_acquire+0x518/0xc20 [ 14.977237][ T182] console_unlock+0xee/0x1f0 [ 14.977241][ T182] ? console_flush_one_record+0x710/0x710 [ 14.977243][ T182] ? rcu_is_watching+0x16/0xd0 [ 14.977244][ T182] ? lock_acquire+0x60/0x160 [ 14.977248][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.977250][ T182] ? vprintk_emit+0x320/0x3e0 [ 14.977253][ T182] vprintk_emit+0x37c/0x3e0 [ 14.977256][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 14.977259][ T182] ? __lock_acquire+0x518/0xc20 [ 14.977263][ T182] _printk+0xc7/0x100 [ 14.977267][ T182] ? snapshot_read.cold+0x21/0x21 [ 14.977270][ T182] ? do_raw_spin_lock+0x131/0x280 [ 14.977273][ T182] ? __rwlock_init+0x150/0x150 [ 14.977277][ T182] ? do_raw_spin_lock+0x131/0x280 [ 14.977280][ T182] do_exit.cold+0x82/0x9c [ 14.977284][ T182] ? exit_notify+0x890/0x890 [ 14.977285][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 14.977288][ T182] ? rcu_is_watching+0x16/0xd0 [ 14.977292][ T182] do_group_exit+0xb8/0x370 [ 14.977295][ T182] __x64_sys_exit_group+0x3c/0x50 [ 14.977297][ T182] x64_sys_call+0x1567/0x1570 [ 14.977299][ T182] do_syscall_64+0xff/0x530 [ 14.977303][ T182] ? exc_page_fault+0xee/0x100 [ 14.977306][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.977308][ T182] RIP: 0033:0x7fa8985881b8 [ 14.977311][ T182] Code: Unable to access opcode bytes at 0x7fa89858818e. [ 14.977312][ T182] RSP: 002b:00007fffe4c48558 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.977314][ T182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa8985881b8 [ 14.977316][ T182] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.977317][ T182] RBP: 00007fffe4c486e0 R08: 000055a2a3c00678 R09: 0000000000000000 [ 14.977318][ T182] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.977319][ T182] R13: 00007fa897de6050 R14: 00007fa898ab9d9e R15: 000055a2a3c13400 [ 14.977326][ T182]