[ 12.196870][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 12.196888][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.196890][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 12.196892][ T83] preempt_count: 2, expected: 0 [ 12.196893][ T83] RCU nest depth: 0, expected: 0 [ 12.196893][ T83] locks held by (udev-worker)/83: 5, last CPU#0: [ 12.196895][ T83] #0: ffffffffb02027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.196907][ T83] #1: ffffffffb0399dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.196912][ T83] #2: ffffffffb0399e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.196916][ T83] #3: ffffffffb0289760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.196920][ T83] #4: ffffffffb0289660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.196924][ T83] irq event stamp: 442974 [ 12.196925][ T83] hardirqs last enabled at (442973): [] __down_trylock_console_sem+0x86/0xa0 [ 12.196928][ T83] hardirqs last disabled at (442974): [] console_emit_next_record+0x3f8/0x4f0 [ 12.196929][ T83] softirqs last enabled at (442910): [] netlink_release+0x17b/0xcf0 [ 12.196934][ T83] softirqs last disabled at (442908): [] netlink_release+0xd2/0xcf0 [ 12.196936][ T83] Preemption disabled at: [ 12.196937][ T83] [<0000000000000000>] 0x0 [ 12.196944][ T83] CPU: 0 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.196948][ T83] Tainted: [W]=WARN [ 12.196949][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.196951][ T83] Call Trace: [ 12.196952][ T83] [ 12.196954][ T83] dump_stack_lvl+0x6f/0xa0 [ 12.196959][ T83] __might_resched.cold+0x1fe/0x2c1 [ 12.196964][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.196968][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 12.196973][ T83] __kmalloc_noprof+0x443/0x760 [ 12.196975][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 12.196981][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 12.196984][ T83] alloc_buf.isra.0+0x4b/0x260 [ 12.196988][ T83] put_chars+0x1e1/0x2f0 [ 12.196991][ T83] ? __send_to_port+0x420/0x420 [ 12.196993][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 12.196996][ T83] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.196999][ T83] ? validate_chain+0x38b/0xc20 [ 12.197003][ T83] hvc_console_print+0x292/0x780 [ 12.197007][ T83] ? __lock_acquire+0x518/0xc20 [ 12.197009][ T83] ? __lock_acquire+0x518/0xc20 [ 12.197013][ T83] ? hvc_write+0x3a0/0x3a0 [ 12.197016][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.197020][ T83] ? lock_acquire+0x13c/0x160 [ 12.197024][ T83] console_emit_next_record+0x252/0x4f0 [ 12.197029][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 12.197033][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.197036][ T83] ? lock_acquire+0x13c/0x160 [ 12.197039][ T83] console_flush_one_record+0x46f/0x710 [ 12.197043][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 12.197045][ T83] ? __lock_acquire+0x518/0xc20 [ 12.197050][ T83] console_unlock+0xee/0x1f0 [ 12.197053][ T83] ? console_flush_one_record+0x710/0x710 [ 12.197055][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.197057][ T83] ? lock_acquire+0xa0/0x160 [ 12.197060][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.197062][ T83] ? vprintk_emit+0x320/0x3e0 [ 12.197065][ T83] vprintk_emit+0x37c/0x3e0 [ 12.197069][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 12.197073][ T83] ? __lock_acquire+0x518/0xc20 [ 12.197076][ T83] _printk+0xc7/0x100 [ 12.197079][ T83] ? snapshot_read.cold+0x21/0x21 [ 12.197082][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.197085][ T83] ? __rwlock_init+0x150/0x150 [ 12.197088][ T83] ? do_raw_spin_lock+0x131/0x280 [ 12.197091][ T83] do_exit.cold+0x82/0x9c [ 12.197094][ T83] ? exit_notify+0x890/0x890 [ 12.197096][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 12.197099][ T83] ? rcu_is_watching+0x16/0xd0 [ 12.197102][ T83] do_group_exit+0xb8/0x370 [ 12.197105][ T83] __x64_sys_exit_group+0x3c/0x50 [ 12.197107][ T83] x64_sys_call+0x1567/0x1570 [ 12.197109][ T83] do_syscall_64+0xff/0x530 [ 12.197114][ T83] ? exc_page_fault+0xee/0x100 [ 12.197118][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.197120][ T83] RIP: 0033:0x7fd13827f1b8 [ 12.197123][ T83] Code: Unable to access opcode bytes at 0x7fd13827f18e. [ 12.197124][ T83] RSP: 002b:00007ffe0da14d78 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.197126][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd13827f1b8 [ 12.197128][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.197128][ T83] RBP: 00007ffe0da14f00 R08: 000056139dd5bf48 R09: 0000000000000000 [ 12.197129][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.197130][ T83] R13: 00007fd137add050 R14: 00007fd1387b0d9e R15: 000056139dd63310 [ 12.197136][ T83]