[ 13.711213][ T185] (udev-worker) (185) used greatest stack depth: 22696 bytes left [ 13.711237][ T185] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.711239][ T185] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 185, name: (udev-worker) [ 13.711241][ T185] preempt_count: 2, expected: 0 [ 13.711242][ T185] RCU nest depth: 0, expected: 0 [ 13.711243][ T185] locks held by (udev-worker)/185: 5, last CPU#0: [ 13.711245][ T185] #0: ffffffffbb4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.711259][ T185] #1: ffffffffbb599cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.711264][ T185] #2: ffffffffbb599d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.711269][ T185] #3: ffffffffbb489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.711273][ T185] #4: ffffffffbb489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 13.711278][ T185] irq event stamp: 116490 [ 13.711279][ T185] hardirqs last enabled at (116489): [] __down_trylock_console_sem+0x86/0xa0 [ 13.711283][ T185] hardirqs last disabled at (116490): [] console_emit_next_record+0x3f8/0x4f0 [ 13.711286][ T185] softirqs last enabled at (116426): [] netlink_release+0x17b/0xcf0 [ 13.711290][ T185] softirqs last disabled at (116424): [] netlink_release+0xd2/0xcf0 [ 13.711293][ T185] Preemption disabled at: [ 13.711294][ T185] [<0000000000000000>] 0x0 [ 13.711302][ T185] CPU: 0 UID: 0 PID: 185 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.711305][ T185] Tainted: [W]=WARN [ 13.711306][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.711308][ T185] Call Trace: [ 13.711310][ T185] [ 13.711311][ T185] dump_stack_lvl+0x6f/0xa0 [ 13.711318][ T185] __might_resched.cold+0x1fe/0x2c1 [ 13.711323][ T185] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.711328][ T185] ? __kmalloc_noprof+0xdb/0x760 [ 13.711334][ T185] __kmalloc_noprof+0x443/0x760 [ 13.711337][ T185] ? alloc_buf.isra.0+0x4b/0x260 [ 13.711344][ T185] ? do_raw_spin_unlock+0x59/0x250 [ 13.711347][ T185] alloc_buf.isra.0+0x4b/0x260 [ 13.711351][ T185] put_chars+0x1e1/0x2f0 [ 13.711354][ T185] ? __send_to_port+0x420/0x420 [ 13.711356][ T185] ? printk_get_next_message+0x2fe/0x7d0 [ 13.711360][ T185] ? rcu_read_lock_any_held+0x3c/0x90 [ 13.711364][ T185] ? validate_chain+0x38b/0xc20 [ 13.711369][ T185] hvc_console_print+0x292/0x780 [ 13.711373][ T185] ? __lock_acquire+0x518/0xc20 [ 13.711375][ T185] ? __lock_acquire+0x518/0xc20 [ 13.711380][ T185] ? hvc_write+0x3a0/0x3a0 [ 13.711383][ T185] ? rcu_is_watching+0x16/0xd0 [ 13.711386][ T185] ? lock_acquire+0x13c/0x160 [ 13.711390][ T185] console_emit_next_record+0x252/0x4f0 [ 13.711395][ T185] ? devkmsg_read+0x4e0/0x4e0 [ 13.711400][ T185] ? rcu_is_watching+0x16/0xd0 [ 13.711402][ T185] ? lock_acquire+0x13c/0x160 [ 13.711412][ T185] console_flush_one_record+0x46f/0x710 [ 13.711417][ T185] ? console_emit_next_record+0x4f0/0x4f0 [ 13.711419][ T185] ? __lock_acquire+0x518/0xc20 [ 13.711425][ T185] console_unlock+0xee/0x1f0 [ 13.711428][ T185] ? console_flush_one_record+0x710/0x710 [ 13.711432][ T185] ? rcu_is_watching+0x16/0xd0 [ 13.711434][ T185] ? lock_acquire+0x60/0x160 [ 13.711438][ T185] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.711441][ T185] ? vprintk_emit+0x320/0x3e0 [ 13.711444][ T185] vprintk_emit+0x37c/0x3e0 [ 13.711447][ T185] ? wake_up_klogd_work_func+0x90/0x90 [ 13.711451][ T185] ? __lock_acquire+0x518/0xc20 [ 13.711455][ T185] _printk+0xc7/0x100 [ 13.711459][ T185] ? snapshot_read.cold+0x21/0x21 [ 13.711462][ T185] ? do_raw_spin_lock+0x131/0x280 [ 13.711465][ T185] ? __rwlock_init+0x150/0x150 [ 13.711469][ T185] ? do_raw_spin_lock+0x131/0x280 [ 13.711472][ T185] do_exit.cold+0x82/0x9c [ 13.711477][ T185] ? exit_notify+0x890/0x890 [ 13.711478][ T185] ? __lock_release.isra.0+0x69/0x1a0 [ 13.711481][ T185] ? rcu_is_watching+0x16/0xd0 [ 13.711485][ T185] do_group_exit+0xb8/0x370 [ 13.711488][ T185] __x64_sys_exit_group+0x3c/0x50 [ 13.711490][ T185] x64_sys_call+0x1567/0x1570 [ 13.711493][ T185] do_syscall_64+0xff/0x530 [ 13.711497][ T185] ? exc_page_fault+0xee/0x100 [ 13.711500][ T185] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.711503][ T185] RIP: 0033:0x7f8f272741b8 [ 13.711505][ T185] Code: Unable to access opcode bytes at 0x7f8f2727418e. [ 13.711506][ T185] RSP: 002b:00007ffd36fcb798 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.711509][ T185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f272741b8 [ 13.711511][ T185] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.711512][ T185] RBP: 00007ffd36fcb920 R08: 000055a0a2e70b38 R09: 0000000000000000 [ 13.711513][ T185] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.711513][ T185] R13: 00007f8f26ad2050 R14: 00007f8f277a5d9e R15: 000055a0a2ce2810 [ 13.711521][ T185]