[ 11.190127][ T81] (udev-worker) (81) used greatest stack depth: 22696 bytes left [ 11.190142][ T81] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.190144][ T81] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 81, name: (udev-worker) [ 11.190146][ T81] preempt_count: 2, expected: 0 [ 11.190147][ T81] RCU nest depth: 0, expected: 0 [ 11.190148][ T81] locks held by (udev-worker)/81: 5, last CPU#1: [ 11.190150][ T81] #0: ffffffff9b2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.190161][ T81] #1: ffffffff9b399dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.190166][ T81] #2: ffffffff9b399e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.190170][ T81] #3: ffffffff9b289760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.190174][ T81] #4: ffffffff9b289660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 11.190178][ T81] irq event stamp: 445040 [ 11.190179][ T81] hardirqs last enabled at (445039): [] __down_trylock_console_sem+0x86/0xa0 [ 11.190181][ T81] hardirqs last disabled at (445040): [] console_emit_next_record+0x3f8/0x4f0 [ 11.190183][ T81] softirqs last enabled at (444976): [] netlink_release+0x17b/0xcf0 [ 11.190188][ T81] softirqs last disabled at (444974): [] netlink_release+0xd2/0xcf0 [ 11.190190][ T81] Preemption disabled at: [ 11.190191][ T81] [<0000000000000000>] 0x0 [ 11.190197][ T81] CPU: 1 UID: 0 PID: 81 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.190201][ T81] Tainted: [W]=WARN [ 11.190202][ T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.190203][ T81] Call Trace: [ 11.190205][ T81] [ 11.190206][ T81] dump_stack_lvl+0x6f/0xa0 [ 11.190212][ T81] __might_resched.cold+0x1fe/0x2c1 [ 11.190217][ T81] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.190220][ T81] ? __kmalloc_noprof+0xdb/0x760 [ 11.190225][ T81] __kmalloc_noprof+0x443/0x760 [ 11.190228][ T81] ? alloc_buf.isra.0+0x4b/0x260 [ 11.190234][ T81] ? do_raw_spin_unlock+0x59/0x250 [ 11.190237][ T81] alloc_buf.isra.0+0x4b/0x260 [ 11.190240][ T81] put_chars+0x1e1/0x2f0 [ 11.190243][ T81] ? __send_to_port+0x420/0x420 [ 11.190245][ T81] ? printk_get_next_message+0x2fe/0x7d0 [ 11.190249][ T81] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.190252][ T81] ? validate_chain+0x38b/0xc20 [ 11.190256][ T81] hvc_console_print+0x292/0x780 [ 11.190260][ T81] ? __lock_acquire+0x518/0xc20 [ 11.190261][ T81] ? __lock_acquire+0x518/0xc20 [ 11.190265][ T81] ? hvc_write+0x3a0/0x3a0 [ 11.190269][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.190272][ T81] ? lock_acquire+0x13c/0x160 [ 11.190276][ T81] console_emit_next_record+0x252/0x4f0 [ 11.190279][ T81] ? devkmsg_read+0x4e0/0x4e0 [ 11.190284][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.190286][ T81] ? lock_acquire+0x13c/0x160 [ 11.190289][ T81] console_flush_one_record+0x46f/0x710 [ 11.190293][ T81] ? console_emit_next_record+0x4f0/0x4f0 [ 11.190295][ T81] ? __lock_acquire+0x518/0xc20 [ 11.190300][ T81] console_unlock+0xee/0x1f0 [ 11.190303][ T81] ? console_flush_one_record+0x710/0x710 [ 11.190304][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.190307][ T81] ? lock_acquire+0xa0/0x160 [ 11.190310][ T81] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.190312][ T81] ? vprintk_emit+0x320/0x3e0 [ 11.190315][ T81] vprintk_emit+0x37c/0x3e0 [ 11.190319][ T81] ? wake_up_klogd_work_func+0x90/0x90 [ 11.190322][ T81] ? __lock_acquire+0x518/0xc20 [ 11.190325][ T81] _printk+0xc7/0x100 [ 11.190329][ T81] ? snapshot_read.cold+0x21/0x21 [ 11.190332][ T81] ? do_raw_spin_lock+0x131/0x280 [ 11.190334][ T81] ? __rwlock_init+0x150/0x150 [ 11.190338][ T81] ? do_raw_spin_lock+0x131/0x280 [ 11.190340][ T81] do_exit.cold+0x82/0x9c [ 11.190344][ T81] ? exit_notify+0x890/0x890 [ 11.190345][ T81] ? __lock_release.isra.0+0x69/0x1a0 [ 11.190348][ T81] ? rcu_is_watching+0x16/0xd0 [ 11.190352][ T81] do_group_exit+0xb8/0x370 [ 11.190354][ T81] __x64_sys_exit_group+0x3c/0x50 [ 11.190356][ T81] x64_sys_call+0x1567/0x1570 [ 11.190358][ T81] do_syscall_64+0xff/0x530 [ 11.190361][ T81] ? irq_exit_rcu+0x1a/0x30 [ 11.190364][ T81] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.190366][ T81] RIP: 0033:0x7f60742a21b8 [ 11.190368][ T81] Code: Unable to access opcode bytes at 0x7f60742a218e. [ 11.190370][ T81] RSP: 002b:00007fffd99f5388 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 11.190372][ T81] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f60742a21b8 [ 11.190373][ T81] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 11.190382][ T81] RBP: 00007fffd99f5510 R08: 000055c92745cf48 R09: 0000000000000000 [ 11.190383][ T81] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 11.190384][ T81] R13: 00007f6073b00050 R14: 00007f60747d3d9e R15: 000055c9275a0690 [ 11.190391][ T81]