[ 12.793226][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 12.793242][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.793245][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 12.793247][ T86] preempt_count: 2, expected: 0 [ 12.793247][ T86] RCU nest depth: 0, expected: 0 [ 12.793248][ T86] INFO: lockdep is turned off. [ 12.793250][ T86] irq event stamp: 150642 [ 12.793251][ T86] hardirqs last enabled at (150641): [] _raw_spin_unlock_irq+0x28/0x50 [ 12.793259][ T86] hardirqs last disabled at (150642): [] __schedule+0x1246/0x20e0 [ 12.793262][ T86] softirqs last enabled at (150578): [] unix_release_sock+0x446/0xe50 [ 12.793265][ T86] softirqs last disabled at (150576): [] unix_release_sock+0x39f/0xe50 [ 12.793267][ T86] Preemption disabled at: [ 12.793268][ T86] [<0000000000000000>] 0x0 [ 12.793274][ T86] CPU: 2 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.793278][ T86] Tainted: [W]=WARN [ 12.793279][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.793281][ T86] Call Trace: [ 12.793282][ T86] [ 12.793283][ T86] dump_stack_lvl+0x6f/0xa0 [ 12.793289][ T86] __might_resched.cold+0x1fe/0x2c1 [ 12.793292][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.793296][ T86] ? __asan_memcpy+0x3c/0x60 [ 12.793300][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793304][ T86] __kmalloc_noprof+0x443/0x760 [ 12.793306][ T86] ? __rwlock_init+0x150/0x150 [ 12.793309][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 12.793313][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 12.793315][ T86] alloc_buf.isra.0+0x4b/0x260 [ 12.793317][ T86] put_chars+0x1e1/0x2f0 [ 12.793319][ T86] ? __send_to_port+0x420/0x420 [ 12.793322][ T86] ? console_prepend_replay+0x20/0x20 [ 12.793325][ T86] hvc_console_print+0x292/0x780 [ 12.793329][ T86] ? hvc_write+0x3a0/0x3a0 [ 12.793331][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793332][ T86] ? lock_acquire+0x13c/0x160 [ 12.793334][ T86] console_emit_next_record+0x22f/0x4c0 [ 12.793336][ T86] ? devkmsg_read+0x4b0/0x4b0 [ 12.793338][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793339][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793341][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793342][ T86] ? lock_acquire+0x13c/0x160 [ 12.793344][ T86] ? console_flush_one_record+0x111/0x710 [ 12.793345][ T86] console_flush_one_record+0x46f/0x710 [ 12.793347][ T86] ? console_emit_next_record+0x4c0/0x4c0 [ 12.793350][ T86] console_unlock+0xee/0x1f0 [ 12.793351][ T86] ? lock_acquire+0x13c/0x160 [ 12.793353][ T86] ? console_flush_one_record+0x710/0x710 [ 12.793354][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793355][ T86] ? lock_release+0x184/0x1f0 [ 12.793356][ T86] ? lock_acquire+0x60/0x160 [ 12.793358][ T86] ? __rcu_read_lock+0x30/0x70 [ 12.793360][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.793361][ T86] ? vprintk_emit+0x320/0x3e0 [ 12.793363][ T86] vprintk_emit+0x37c/0x3e0 [ 12.793365][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 12.793367][ T86] ? do_raw_read_unlock+0x70/0x70 [ 12.793368][ T86] ? forget_original_parent+0x5c/0xdb0 [ 12.793371][ T86] _printk+0xc7/0x100 [ 12.793374][ T86] ? snapshot_read.cold+0x21/0x21 [ 12.793376][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.793378][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.793379][ T86] ? __rwlock_init+0x150/0x150 [ 12.793381][ T86] ? do_raw_spin_lock+0x131/0x280 [ 12.793382][ T86] do_exit.cold+0x82/0x9c [ 12.793385][ T86] ? exit_notify+0x890/0x890 [ 12.793387][ T86] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 12.793390][ T86] ? rcu_is_watching+0x16/0xd0 [ 12.793392][ T86] do_group_exit+0xb8/0x370 [ 12.793394][ T86] __x64_sys_exit_group+0x3c/0x50 [ 12.793396][ T86] x64_sys_call+0x1567/0x1570 [ 12.793398][ T86] do_syscall_64+0xff/0x530 [ 12.793400][ T86] ? exc_page_fault+0xee/0x100 [ 12.793402][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.793404][ T86] RIP: 0033:0x7fa39fa1f1b8 [ 12.793406][ T86] Code: Unable to access opcode bytes at 0x7fa39fa1f18e. [ 12.793407][ T86] RSP: 002b:00007ffdbb4a7278 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.793411][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa39fa1f1b8 [ 12.793412][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.793413][ T86] RBP: 00007ffdbb4a7400 R08: 000055a662dc55a8 R09: 0000000000000000 [ 12.793414][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.793415][ T86] R13: 00007fa39f27d050 R14: 00007fa39ff50d9e R15: 000055a662dc5500 [ 12.793417][ T86]