[ 24.391837][ T182] (udev-worker) (182) used greatest stack depth: 22696 bytes left [ 24.391859][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 24.391861][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: (udev-worker) [ 24.391863][ T182] preempt_count: 2, expected: 0 [ 24.391864][ T182] RCU nest depth: 0, expected: 0 [ 24.391865][ T182] locks held by (udev-worker)/182: 5, last CPU#2: [ 24.391867][ T182] #0: ffffffffafa027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 24.391879][ T182] #1: ffffffffafb99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 24.391884][ T182] #2: ffffffffafb99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 24.391889][ T182] #3: ffffffffafa89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 24.391892][ T182] #4: ffffffffafa89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 24.391896][ T182] irq event stamp: 720306 [ 24.391897][ T182] hardirqs last enabled at (720305): [] __down_trylock_console_sem+0x86/0xa0 [ 24.391900][ T182] hardirqs last disabled at (720306): [] console_emit_next_record+0x3f8/0x4f0 [ 24.391902][ T182] softirqs last enabled at (720242): [] netlink_release+0x17b/0xcf0 [ 24.391907][ T182] softirqs last disabled at (720240): [] netlink_release+0xd2/0xcf0 [ 24.391909][ T182] Preemption disabled at: [ 24.391910][ T182] [<0000000000000000>] 0x0 [ 24.391917][ T182] CPU: 2 UID: 0 PID: 182 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 24.391921][ T182] Tainted: [W]=WARN [ 24.391922][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.391924][ T182] Call Trace: [ 24.391925][ T182] [ 24.391927][ T182] dump_stack_lvl+0x6f/0xa0 [ 24.391933][ T182] __might_resched.cold+0x1fe/0x2c1 [ 24.391938][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 24.391942][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 24.391948][ T182] __kmalloc_noprof+0x443/0x760 [ 24.391951][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 24.391957][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 24.391960][ T182] alloc_buf.isra.0+0x4b/0x260 [ 24.391964][ T182] put_chars+0x1e1/0x2f0 [ 24.391967][ T182] ? __send_to_port+0x420/0x420 [ 24.391969][ T182] ? printk_get_next_message+0x2fe/0x7d0 [ 24.391972][ T182] ? rcu_read_lock_any_held+0x3c/0x90 [ 24.391976][ T182] ? validate_chain+0x38b/0xc20 [ 24.391980][ T182] hvc_console_print+0x292/0x780 [ 24.391984][ T182] ? __lock_acquire+0x518/0xc20 [ 24.391985][ T182] ? __lock_acquire+0x518/0xc20 [ 24.391990][ T182] ? hvc_write+0x3a0/0x3a0 [ 24.391993][ T182] ? rcu_is_watching+0x16/0xd0 [ 24.391995][ T182] ? lock_acquire+0x13c/0x160 [ 24.391999][ T182] console_emit_next_record+0x252/0x4f0 [ 24.392004][ T182] ? devkmsg_read+0x4e0/0x4e0 [ 24.392008][ T182] ? rcu_is_watching+0x16/0xd0 [ 24.392010][ T182] ? lock_acquire+0x13c/0x160 [ 24.392014][ T182] console_flush_one_record+0x46f/0x710 [ 24.392018][ T182] ? console_emit_next_record+0x4f0/0x4f0 [ 24.392020][ T182] ? __lock_acquire+0x518/0xc20 [ 24.392025][ T182] console_unlock+0xee/0x1f0 [ 24.392029][ T182] ? console_flush_one_record+0x710/0x710 [ 24.392031][ T182] ? rcu_is_watching+0x16/0xd0 [ 24.392032][ T182] ? lock_acquire+0x60/0x160 [ 24.392036][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 24.392038][ T182] ? vprintk_emit+0x320/0x3e0 [ 24.392041][ T182] vprintk_emit+0x37c/0x3e0 [ 24.392044][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 24.392047][ T182] ? __lock_acquire+0x518/0xc20 [ 24.392050][ T182] _printk+0xc7/0x100 [ 24.392060][ T182] ? snapshot_read.cold+0x21/0x21 [ 24.392063][ T182] ? do_raw_spin_lock+0x131/0x280 [ 24.392066][ T182] ? __rwlock_init+0x150/0x150 [ 24.392070][ T182] ? do_raw_spin_lock+0x131/0x280 [ 24.392073][ T182] do_exit.cold+0x82/0x9c [ 24.392077][ T182] ? exit_notify+0x890/0x890 [ 24.392078][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 24.392081][ T182] ? rcu_is_watching+0x16/0xd0 [ 24.392084][ T182] do_group_exit+0xb8/0x370 [ 24.392087][ T182] __x64_sys_exit_group+0x3c/0x50 [ 24.392089][ T182] x64_sys_call+0x1567/0x1570 [ 24.392092][ T182] do_syscall_64+0xff/0x530 [ 24.392095][ T182] ? exc_page_fault+0xee/0x100 [ 24.392098][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.392101][ T182] RIP: 0033:0x7fab2fd051b8 [ 24.392104][ T182] Code: Unable to access opcode bytes at 0x7fab2fd0518e. [ 24.392105][ T182] RSP: 002b:00007fffbc58c4c8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 24.392107][ T182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fab2fd051b8 [ 24.392109][ T182] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 24.392109][ T182] RBP: 00007fffbc58c650 R08: 000055d15869bdd8 R09: 0000000000000000 [ 24.392110][ T182] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 24.392111][ T182] R13: 00007fab2f563050 R14: 00007fab30236d9e R15: 000055d1585374e0 [ 24.392118][ T182]