[ 12.082379][ T92] (udev-worker) (92) used greatest stack depth: 22696 bytes left [ 12.082397][ T92] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.082400][ T92] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 92, name: (udev-worker) [ 12.082401][ T92] preempt_count: 2, expected: 0 [ 12.082402][ T92] RCU nest depth: 0, expected: 0 [ 12.082403][ T92] INFO: lockdep is turned off. [ 12.082405][ T92] irq event stamp: 0 [ 12.082405][ T92] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 12.082411][ T92] hardirqs last disabled at (0): [] copy_process+0x1ccd/0x6240 [ 12.082418][ T92] softirqs last enabled at (0): [] copy_process+0x1d21/0x6240 [ 12.082421][ T92] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 12.082423][ T92] Preemption disabled at: [ 12.082423][ T92] [<0000000000000000>] 0x0 [ 12.082429][ T92] CPU: 1 UID: 0 PID: 92 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.082433][ T92] Tainted: [W]=WARN [ 12.082434][ T92] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.082435][ T92] Call Trace: [ 12.082437][ T92] [ 12.082438][ T92] dump_stack_lvl+0x6f/0xa0 [ 12.082444][ T92] __might_resched.cold+0x1fe/0x2c1 [ 12.082448][ T92] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.082451][ T92] ? __asan_memcpy+0x3c/0x60 [ 12.082455][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082459][ T92] __kmalloc_noprof+0x443/0x760 [ 12.082465][ T92] ? __rwlock_init+0x150/0x150 [ 12.082468][ T92] ? alloc_buf.isra.0+0x4b/0x260 [ 12.082472][ T92] ? do_raw_spin_unlock+0x59/0x250 [ 12.082474][ T92] alloc_buf.isra.0+0x4b/0x260 [ 12.082477][ T92] put_chars+0x1e1/0x2f0 [ 12.082479][ T92] ? __send_to_port+0x420/0x420 [ 12.082481][ T92] ? console_prepend_replay+0x20/0x20 [ 12.082485][ T92] hvc_console_print+0x292/0x780 [ 12.082489][ T92] ? hvc_write+0x3a0/0x3a0 [ 12.082491][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082493][ T92] ? lock_acquire+0x13c/0x160 [ 12.082495][ T92] console_emit_next_record+0x22f/0x4c0 [ 12.082497][ T92] ? devkmsg_read+0x4b0/0x4b0 [ 12.082499][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082500][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082502][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082503][ T92] ? lock_acquire+0x13c/0x160 [ 12.082505][ T92] ? console_flush_one_record+0x111/0x710 [ 12.082506][ T92] console_flush_one_record+0x46f/0x710 [ 12.082509][ T92] ? console_emit_next_record+0x4c0/0x4c0 [ 12.082511][ T92] console_unlock+0xee/0x1f0 [ 12.082513][ T92] ? lock_acquire+0x13c/0x160 [ 12.082523][ T92] ? console_flush_one_record+0x710/0x710 [ 12.082525][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082526][ T92] ? lock_release+0x184/0x1f0 [ 12.082527][ T92] ? lock_acquire+0x60/0x160 [ 12.082529][ T92] ? __rcu_read_lock+0x30/0x70 [ 12.082531][ T92] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.082533][ T92] ? vprintk_emit+0x320/0x3e0 [ 12.082535][ T92] vprintk_emit+0x37c/0x3e0 [ 12.082537][ T92] ? wake_up_klogd_work_func+0x90/0x90 [ 12.082539][ T92] ? do_raw_read_unlock+0x70/0x70 [ 12.082541][ T92] ? forget_original_parent+0x5c/0xdb0 [ 12.082544][ T92] _printk+0xc7/0x100 [ 12.082547][ T92] ? snapshot_read.cold+0x21/0x21 [ 12.082549][ T92] ? do_raw_spin_lock+0x131/0x280 [ 12.082550][ T92] ? do_raw_spin_lock+0x131/0x280 [ 12.082552][ T92] ? __rwlock_init+0x150/0x150 [ 12.082554][ T92] ? do_raw_spin_lock+0x131/0x280 [ 12.082556][ T92] do_exit.cold+0x82/0x9c [ 12.082559][ T92] ? exit_notify+0x890/0x890 [ 12.082561][ T92] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 12.082564][ T92] ? rcu_is_watching+0x16/0xd0 [ 12.082566][ T92] do_group_exit+0xb8/0x370 [ 12.082569][ T92] __x64_sys_exit_group+0x3c/0x50 [ 12.082571][ T92] x64_sys_call+0x1567/0x1570 [ 12.082573][ T92] do_syscall_64+0xff/0x530 [ 12.082577][ T92] ? exc_page_fault+0xee/0x100 [ 12.082579][ T92] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.082582][ T92] RIP: 0033:0x7f01cfb691b8 [ 12.082586][ T92] Code: Unable to access opcode bytes at 0x7f01cfb6918e. [ 12.082589][ T92] RSP: 002b:00007ffc988ca7d8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.082594][ T92] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01cfb691b8 [ 12.082596][ T92] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.082598][ T92] RBP: 00007ffc988ca960 R08: 0000561425e12f68 R09: 0000000000000000 [ 12.082599][ T92] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.082601][ T92] R13: 00007f01cf3c7050 R14: 00007f01d009ad9e R15: 0000561425c5cd00 [ 12.082605][ T92]