[ 19.354755][ T183] (udev-worker) (183) used greatest stack depth: 22696 bytes left [ 19.354775][ T183] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 19.354777][ T183] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 183, name: (udev-worker) [ 19.354779][ T183] preempt_count: 2, expected: 0 [ 19.354780][ T183] RCU nest depth: 0, expected: 0 [ 19.354781][ T183] locks held by (udev-worker)/183: 5, last CPU#2: [ 19.354783][ T183] #0: ffffffffaec027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 19.354795][ T183] #1: ffffffffaed99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 19.354800][ T183] #2: ffffffffaed99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 19.354805][ T183] #3: ffffffffaec89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 19.354808][ T183] #4: ffffffffaec89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 19.354813][ T183] irq event stamp: 328176 [ 19.354813][ T183] hardirqs last enabled at (328175): [] __down_trylock_console_sem+0x86/0xa0 [ 19.354817][ T183] hardirqs last disabled at (328176): [] console_emit_next_record+0x3f8/0x4f0 [ 19.354819][ T183] softirqs last enabled at (328112): [] netlink_release+0x17b/0xcf0 [ 19.354824][ T183] softirqs last disabled at (328110): [] netlink_release+0xd2/0xcf0 [ 19.354826][ T183] Preemption disabled at: [ 19.354827][ T183] [<0000000000000000>] 0x0 [ 19.354834][ T183] CPU: 2 UID: 0 PID: 183 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 19.354838][ T183] Tainted: [W]=WARN [ 19.354839][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.354842][ T183] Call Trace: [ 19.354844][ T183] [ 19.354847][ T183] dump_stack_lvl+0x6f/0xa0 [ 19.354854][ T183] __might_resched.cold+0x1fe/0x2c1 [ 19.354859][ T183] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 19.354863][ T183] ? __kmalloc_noprof+0xdb/0x760 [ 19.354869][ T183] __kmalloc_noprof+0x443/0x760 [ 19.354871][ T183] ? alloc_buf.isra.0+0x4b/0x260 [ 19.354878][ T183] ? do_raw_spin_unlock+0x59/0x250 [ 19.354880][ T183] alloc_buf.isra.0+0x4b/0x260 [ 19.354884][ T183] put_chars+0x1e1/0x2f0 [ 19.354887][ T183] ? __send_to_port+0x420/0x420 [ 19.354889][ T183] ? printk_get_next_message+0x2fe/0x7d0 [ 19.354893][ T183] ? rcu_read_lock_any_held+0x3c/0x90 [ 19.354896][ T183] ? validate_chain+0x38b/0xc20 [ 19.354901][ T183] hvc_console_print+0x292/0x780 [ 19.354904][ T183] ? __lock_acquire+0x518/0xc20 [ 19.354906][ T183] ? __lock_acquire+0x518/0xc20 [ 19.354910][ T183] ? hvc_write+0x3a0/0x3a0 [ 19.354914][ T183] ? rcu_is_watching+0x16/0xd0 [ 19.354916][ T183] ? lock_acquire+0x13c/0x160 [ 19.354920][ T183] console_emit_next_record+0x252/0x4f0 [ 19.354924][ T183] ? devkmsg_read+0x4e0/0x4e0 [ 19.354929][ T183] ? rcu_is_watching+0x16/0xd0 [ 19.354930][ T183] ? lock_acquire+0x13c/0x160 [ 19.354935][ T183] console_flush_one_record+0x46f/0x710 [ 19.354939][ T183] ? console_emit_next_record+0x4f0/0x4f0 [ 19.354941][ T183] ? __lock_acquire+0x518/0xc20 [ 19.354946][ T183] console_unlock+0xee/0x1f0 [ 19.354949][ T183] ? console_flush_one_record+0x710/0x710 [ 19.354951][ T183] ? rcu_is_watching+0x16/0xd0 [ 19.354953][ T183] ? lock_acquire+0x60/0x160 [ 19.354957][ T183] ? __down_trylock_console_sem+0x5e/0xa0 [ 19.354958][ T183] ? vprintk_emit+0x320/0x3e0 [ 19.354961][ T183] vprintk_emit+0x37c/0x3e0 [ 19.354964][ T183] ? wake_up_klogd_work_func+0x90/0x90 [ 19.354967][ T183] ? __lock_acquire+0x518/0xc20 [ 19.354971][ T183] _printk+0xc7/0x100 [ 19.354975][ T183] ? snapshot_read.cold+0x21/0x21 [ 19.354978][ T183] ? do_raw_spin_lock+0x131/0x280 [ 19.354980][ T183] ? __rwlock_init+0x150/0x150 [ 19.354984][ T183] ? do_raw_spin_lock+0x131/0x280 [ 19.354987][ T183] do_exit.cold+0x82/0x9c [ 19.354991][ T183] ? exit_notify+0x890/0x890 [ 19.354992][ T183] ? __lock_release.isra.0+0x69/0x1a0 [ 19.354995][ T183] ? rcu_is_watching+0x16/0xd0 [ 19.354998][ T183] do_group_exit+0xb8/0x370 [ 19.355001][ T183] __x64_sys_exit_group+0x3c/0x50 [ 19.355003][ T183] x64_sys_call+0x1567/0x1570 [ 19.355005][ T183] do_syscall_64+0xff/0x530 [ 19.355009][ T183] ? exc_page_fault+0xee/0x100 [ 19.355012][ T183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 19.355015][ T183] RIP: 0033:0x7fb0aba5c1b8 [ 19.355017][ T183] Code: Unable to access opcode bytes at 0x7fb0aba5c18e. [ 19.355018][ T183] RSP: 002b:00007ffcc853fd38 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 19.355021][ T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0aba5c1b8 [ 19.355022][ T183] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 19.355023][ T183] RBP: 00007ffcc853fec0 R08: 00005623544709a8 R09: 0000000000000000 [ 19.355024][ T183] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 19.355025][ T183] R13: 00007fb0ab2ba050 R14: 00007fb0abf8dd9e R15: 00005623542e8ed0 [ 19.355031][ T183]