[ 12.293762][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 12.293783][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.293786][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 12.293788][ T86] preempt_count: 2, expected: 0 [ 12.293790][ T86] RCU nest depth: 0, expected: 0 [ 12.293791][ T86] INFO: lockdep is turned off. [ 12.293793][ T86] irq event stamp: 0 [ 12.293794][ T86] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 12.293800][ T86] hardirqs last disabled at (0): [] copy_process+0x1ccd/0x6240 [ 12.293808][ T86] softirqs last enabled at (0): [] copy_process+0x1d21/0x6240 [ 12.293811][ T86] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 12.293814][ T86] Preemption disabled at: [ 12.293815][ T86] [<0000000000000000>] 0x0 [ 12.293822][ T86] CPU: 3 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.293827][ T86] Tainted: [W]=WARN [ 12.293828][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.293831][ T86] Call Trace: [ 12.293833][ T86] [ 12.293835][ T86] dump_stack_lvl+0x6f/0xa0 [ 12.293841][ T86] __might_resched.cold+0x1fe/0x2c1 [ 12.293847][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.293851][ T86] ? __asan_memcpy+0x3c/0x60 [ 12.293855][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293860][ T86] __kmalloc_noprof+0x443/0x760 [ 12.293863][ T86] ? __rwlock_init+0x150/0x150 [ 12.293867][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 12.293873][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 12.293875][ T86] alloc_buf.isra.0+0x4b/0x260 [ 12.293879][ T86] put_chars+0x1e1/0x2f0 [ 12.293883][ T86] ? __send_to_port+0x420/0x420 [ 12.293886][ T86] ? console_prepend_replay+0x20/0x20 [ 12.293891][ T86] hvc_console_print+0x292/0x780 [ 12.293896][ T86] ? hvc_write+0x3a0/0x3a0 [ 12.293899][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293902][ T86] ? lock_acquire+0x13c/0x160 [ 12.293905][ T86] console_emit_next_record+0x22f/0x4c0 [ 12.293908][ T86] ? devkmsg_read+0x4b0/0x4b0 [ 12.293911][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293913][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293915][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293917][ T86] ? lock_acquire+0x13c/0x160 [ 12.293920][ T86] ? console_flush_one_record+0x111/0x710 [ 12.293923][ T86] console_flush_one_record+0x46f/0x710 [ 12.293926][ T86] ? console_emit_next_record+0x4c0/0x4c0 [ 12.293930][ T86] console_unlock+0xee/0x1f0 [ 12.293932][ T86] ? lock_acquire+0x13c/0x160 [ 12.293934][ T86] ? console_flush_one_record+0x710/0x710 [ 12.293937][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293939][ T86] ? lock_release+0x184/0x1f0 [ 12.293941][ T86] ? lock_acquire+0x60/0x160 [ 12.293943][ T86] ? __rcu_read_lock+0x30/0x70 [ 12.293945][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.293948][ T86] ? vprintk_emit+0x320/0x3e0 [ 12.293951][ T86] vprintk_emit+0x37c/0x3e0 [ 12.293954][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 12.293957][ T86] ? do_raw_read_unlock+0x70/0x70 [ 12.293959][ T86] ? forget_original_parent+0x5c/0xdb0 [ 12.293963][ T86] _printk+0xc7/0x100 [ 12.293967][ T86] ? snapshot_read.cold+0x21/0x21 [ 12.293969][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.293972][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.293974][ T86] ? __rwlock_init+0x150/0x150 [ 12.293977][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.293979][ T86] do_exit.cold+0x82/0x9c [ 12.293983][ T86] ? vfs_read+0x3dd/0x7b0 [ 12.293986][ T86] ? exit_notify+0x890/0x890 [ 12.293989][ T86] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 12.293993][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.293996][ T86] do_group_exit+0xb8/0x370 [ 12.293999][ T86] __x64_sys_exit_group+0x3c/0x50 [ 12.294002][ T86] x64_sys_call+0x1567/0x1570 [ 12.294004][ T86] do_syscall_64+0xff/0x530 [ 12.294009][ T86] ? irq_exit_rcu+0x1a/0x30 [ 12.294012][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.294015][ T86] RIP: 0033:0x7fdff53951b8 [ 12.294018][ T86] Code: Unable to access opcode bytes at 0x7fdff539518e. [ 12.294020][ T86] RSP: 002b:00007ffeaf3aaad8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.294024][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdff53951b8 [ 12.294026][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.294028][ T86] RBP: 00007ffeaf3aac60 R08: 0000564fdc00e988 R09: 0000000000000000 [ 12.294030][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.294031][ T86] R13: 00007fdff4bf3050 R14: 00007fdff58c6d9e R15: 0000564fdbea4680 [ 12.294035][ T86]