[ 45.936339][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 45.936359][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 45.936362][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 45.936363][ T89] preempt_count: 2, expected: 0 [ 45.936364][ T89] RCU nest depth: 0, expected: 0 [ 45.936365][ T89] INFO: lockdep is turned off. [ 45.936367][ T89] irq event stamp: 0 [ 45.936367][ T89] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 45.936372][ T89] hardirqs last disabled at (0): [] copy_process+0x1ccd/0x6240 [ 45.936379][ T89] softirqs last enabled at (0): [] copy_process+0x1d21/0x6240 [ 45.936381][ T89] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 45.936383][ T89] Preemption disabled at: [ 45.936384][ T89] [<0000000000000000>] 0x0 [ 45.936389][ T89] CPU: 2 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 45.936393][ T89] Tainted: [W]=WARN [ 45.936394][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 45.936396][ T89] Call Trace: [ 45.936398][ T89] [ 45.936399][ T89] dump_stack_lvl+0x6f/0xa0 [ 45.936404][ T89] __might_resched.cold+0x1fe/0x2c1 [ 45.936408][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 45.936411][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936415][ T89] __kmalloc_noprof+0x443/0x760 [ 45.936418][ T89] ? __rwlock_init+0x150/0x150 [ 45.936420][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 45.936424][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 45.936426][ T89] alloc_buf.isra.0+0x4b/0x260 [ 45.936427][ T89] put_chars+0x1e1/0x2f0 [ 45.936430][ T89] ? __send_to_port+0x420/0x420 [ 45.936431][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 45.936434][ T89] ? console_prepend_replay+0x20/0x20 [ 45.936435][ T89] ? desc_read+0x219/0x2f0 [ 45.936438][ T89] hvc_console_print+0x292/0x780 [ 45.936441][ T89] ? hvc_write+0x3a0/0x3a0 [ 45.936443][ T89] ? __rwlock_init+0x150/0x150 [ 45.936444][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936445][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936447][ T89] ? lock_acquire+0x13c/0x160 [ 45.936449][ T89] console_emit_next_record+0x252/0x4f0 [ 45.936451][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 45.936453][ T89] ? _prb_read_valid+0x6e0/0x6e0 [ 45.936455][ T89] ? __asan_memmove+0x3c/0x60 [ 45.936458][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936460][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936461][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936462][ T89] ? lock_acquire+0x13c/0x160 [ 45.936464][ T89] ? console_flush_one_record+0x111/0x710 [ 45.936466][ T89] console_flush_one_record+0x46f/0x710 [ 45.936468][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 45.936470][ T89] console_unlock+0xee/0x1f0 [ 45.936472][ T89] ? lock_acquire+0x13c/0x160 [ 45.936473][ T89] ? console_flush_one_record+0x710/0x710 [ 45.936475][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936476][ T89] ? lock_release+0x184/0x1f0 [ 45.936477][ T89] ? lock_acquire+0x60/0x160 [ 45.936478][ T89] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 45.936480][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 45.936482][ T89] ? vprintk_emit+0x320/0x3e0 [ 45.936484][ T89] vprintk_emit+0x37c/0x3e0 [ 45.936486][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 45.936488][ T89] ? do_raw_read_unlock+0x70/0x70 [ 45.936490][ T89] ? forget_original_parent+0x5c/0xdb0 [ 45.936492][ T89] _printk+0xc7/0x100 [ 45.936495][ T89] ? snapshot_read.cold+0x21/0x21 [ 45.936497][ T89] ? do_raw_spin_lock+0x131/0x280 [ 45.936499][ T89] ? do_raw_spin_lock+0x131/0x280 [ 45.936500][ T89] ? __rwlock_init+0x150/0x150 [ 45.936502][ T89] ? do_raw_spin_lock+0x131/0x280 [ 45.936504][ T89] do_exit.cold+0x82/0x9c [ 45.936506][ T89] ? vfs_read+0x3dd/0x7b0 [ 45.936509][ T89] ? exit_notify+0x890/0x890 [ 45.936511][ T89] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 45.936514][ T89] ? rcu_is_watching+0x16/0xd0 [ 45.936516][ T89] do_group_exit+0xb8/0x370 [ 45.936518][ T89] __x64_sys_exit_group+0x3c/0x50 [ 45.936520][ T89] x64_sys_call+0x1567/0x1570 [ 45.936522][ T89] do_syscall_64+0xff/0x530 [ 45.936525][ T89] ? exc_page_fault+0xee/0x100 [ 45.936527][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 45.936530][ T89] RIP: 0033:0x7f75f6dd91b8 [ 45.936532][ T89] Code: Unable to access opcode bytes at 0x7f75f6dd918e. [ 45.936533][ T89] RSP: 002b:00007ffd51e334c8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 45.936536][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f75f6dd91b8 [ 45.936538][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 45.936539][ T89] RBP: 00007ffd51e33650 R08: 0000555ca3cab918 R09: 0000000000000000 [ 45.936540][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 45.936541][ T89] R13: 00007f75f6637050 R14: 00007f75f730ad9e R15: 0000555ca3b52760 [ 45.936544][ T89]