[ 14.120087][ T183] (udev-worker) (183) used greatest stack depth: 22696 bytes left [ 14.120109][ T183] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.120111][ T183] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 183, name: (udev-worker) [ 14.120113][ T183] preempt_count: 2, expected: 0 [ 14.120114][ T183] RCU nest depth: 0, expected: 0 [ 14.120115][ T183] locks held by (udev-worker)/183: 5, last CPU#3: [ 14.120117][ T183] #0: ffffffff9c8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.120129][ T183] #1: ffffffff9c999cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.120135][ T183] #2: ffffffff9c999d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.120139][ T183] #3: ffffffff9c889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.120143][ T183] #4: ffffffff9c889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.120147][ T183] irq event stamp: 147886 [ 14.120148][ T183] hardirqs last enabled at (147885): [] __down_trylock_console_sem+0x86/0xa0 [ 14.120152][ T183] hardirqs last disabled at (147886): [] console_emit_next_record+0x3f8/0x4f0 [ 14.120154][ T183] softirqs last enabled at (147822): [] netlink_release+0x17b/0xcf0 [ 14.120158][ T183] softirqs last disabled at (147820): [] netlink_release+0xd2/0xcf0 [ 14.120161][ T183] Preemption disabled at: [ 14.120162][ T183] [<0000000000000000>] 0x0 [ 14.120169][ T183] CPU: 3 UID: 0 PID: 183 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.120172][ T183] Tainted: [W]=WARN [ 14.120173][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.120176][ T183] Call Trace: [ 14.120177][ T183] [ 14.120179][ T183] dump_stack_lvl+0x6f/0xa0 [ 14.120186][ T183] __might_resched.cold+0x1fe/0x2c1 [ 14.120191][ T183] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.120195][ T183] ? __kmalloc_noprof+0xdb/0x760 [ 14.120201][ T183] __kmalloc_noprof+0x443/0x760 [ 14.120203][ T183] ? alloc_buf.isra.0+0x4b/0x260 [ 14.120209][ T183] ? do_raw_spin_unlock+0x59/0x250 [ 14.120212][ T183] alloc_buf.isra.0+0x4b/0x260 [ 14.120216][ T183] put_chars+0x1e1/0x2f0 [ 14.120219][ T183] ? __send_to_port+0x420/0x420 [ 14.120221][ T183] ? printk_get_next_message+0x2fe/0x7d0 [ 14.120225][ T183] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.120228][ T183] ? validate_chain+0x38b/0xc20 [ 14.120233][ T183] hvc_console_print+0x292/0x780 [ 14.120236][ T183] ? __lock_acquire+0x518/0xc20 [ 14.120238][ T183] ? __lock_acquire+0x518/0xc20 [ 14.120242][ T183] ? hvc_write+0x3a0/0x3a0 [ 14.120246][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.120248][ T183] ? lock_acquire+0x13c/0x160 [ 14.120252][ T183] console_emit_next_record+0x252/0x4f0 [ 14.120256][ T183] ? devkmsg_read+0x4e0/0x4e0 [ 14.120261][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.120262][ T183] ? lock_acquire+0x13c/0x160 [ 14.120266][ T183] console_flush_one_record+0x46f/0x710 [ 14.120271][ T183] ? console_emit_next_record+0x4f0/0x4f0 [ 14.120273][ T183] ? __lock_acquire+0x518/0xc20 [ 14.120278][ T183] console_unlock+0xee/0x1f0 [ 14.120281][ T183] ? console_flush_one_record+0x710/0x710 [ 14.120283][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.120285][ T183] ? lock_acquire+0x60/0x160 [ 14.120288][ T183] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.120290][ T183] ? vprintk_emit+0x320/0x3e0 [ 14.120293][ T183] vprintk_emit+0x37c/0x3e0 [ 14.120296][ T183] ? wake_up_klogd_work_func+0x90/0x90 [ 14.120299][ T183] ? __lock_acquire+0x518/0xc20 [ 14.120303][ T183] _printk+0xc7/0x100 [ 14.120307][ T183] ? snapshot_read.cold+0x21/0x21 [ 14.120309][ T183] ? do_raw_spin_lock+0x131/0x280 [ 14.120312][ T183] ? __rwlock_init+0x150/0x150 [ 14.120316][ T183] ? do_raw_spin_lock+0x131/0x280 [ 14.120319][ T183] do_exit.cold+0x82/0x9c [ 14.120323][ T183] ? exit_notify+0x890/0x890 [ 14.120324][ T183] ? __lock_release.isra.0+0x69/0x1a0 [ 14.120327][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.120331][ T183] do_group_exit+0xb8/0x370 [ 14.120334][ T183] __x64_sys_exit_group+0x3c/0x50 [ 14.120336][ T183] x64_sys_call+0x1567/0x1570 [ 14.120338][ T183] do_syscall_64+0xff/0x530 [ 14.120342][ T183] ? irq_exit_rcu+0x1a/0x30 [ 14.120345][ T183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.120347][ T183] RIP: 0033:0x7efe33eb71b8 [ 14.120350][ T183] Code: Unable to access opcode bytes at 0x7efe33eb718e. [ 14.120351][ T183] RSP: 002b:00007ffd46b94fb8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.120353][ T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efe33eb71b8 [ 14.120355][ T183] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.120356][ T183] RBP: 00007ffd46b95140 R08: 000055f2c01d7708 R09: 0000000000000000 [ 14.120356][ T183] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.120357][ T183] R13: 00007efe33715050 R14: 00007efe343e8d9e R15: 000055f2c0051a40 [ 14.120364][ T183]