[ 14.772203][ T201] (udev-worker) (201) used greatest stack depth: 22696 bytes left [ 14.772223][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.772226][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: (udev-worker) [ 14.772227][ T201] preempt_count: 2, expected: 0 [ 14.772228][ T201] RCU nest depth: 0, expected: 0 [ 14.772229][ T201] locks held by (udev-worker)/201: 5, last CPU#2: [ 14.772231][ T201] #0: ffffffffb72167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.772243][ T201] #1: ffffffffb737ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.772248][ T201] #2: ffffffffb737de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.772252][ T201] #3: ffffffffb729d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.772256][ T201] #4: ffffffffb729d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.772260][ T201] irq event stamp: 60796 [ 14.772261][ T201] hardirqs last enabled at (60795): [] __down_trylock_console_sem+0x86/0xa0 [ 14.772264][ T201] hardirqs last disabled at (60796): [] console_emit_next_record+0x3d4/0x4c0 [ 14.772266][ T201] softirqs last enabled at (60688): [] netlink_release+0x17b/0xcf0 [ 14.772271][ T201] softirqs last disabled at (60686): [] netlink_release+0xd2/0xcf0 [ 14.772273][ T201] Preemption disabled at: [ 14.772274][ T201] [<0000000000000000>] 0x0 [ 14.772281][ T201] CPU: 2 UID: 0 PID: 201 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.772285][ T201] Tainted: [W]=WARN [ 14.772286][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.772287][ T201] Call Trace: [ 14.772289][ T201] [ 14.772291][ T201] dump_stack_lvl+0x6f/0xa0 [ 14.772299][ T201] __might_resched.cold+0x1fe/0x2c1 [ 14.772304][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.772308][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 14.772313][ T201] __kmalloc_noprof+0x443/0x760 [ 14.772315][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 14.772322][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 14.772325][ T201] alloc_buf.isra.0+0x4b/0x260 [ 14.772329][ T201] put_chars+0x1e1/0x2f0 [ 14.772331][ T201] ? __send_to_port+0x420/0x420 [ 14.772332][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.772336][ T201] ? validate_chain+0x38b/0xc20 [ 14.772341][ T201] hvc_console_print+0x292/0x780 [ 14.772349][ T201] ? hvc_write+0x3a0/0x3a0 [ 14.772352][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.772354][ T201] ? lock_acquire+0x13c/0x160 [ 14.772358][ T201] console_emit_next_record+0x22f/0x4c0 [ 14.772362][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 14.772364][ T201] ? console_flush_one_record+0x106/0x710 [ 14.772367][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.772369][ T201] ? lock_acquire+0x13c/0x160 [ 14.772373][ T201] console_flush_one_record+0x46f/0x710 [ 14.772377][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 14.772379][ T201] ? __lock_acquire+0x518/0xc20 [ 14.772384][ T201] console_unlock+0xee/0x1f0 [ 14.772387][ T201] ? console_flush_one_record+0x710/0x710 [ 14.772389][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.772391][ T201] ? lock_acquire+0xe0/0x160 [ 14.772395][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.772396][ T201] ? vprintk_emit+0x320/0x3e0 [ 14.772399][ T201] vprintk_emit+0x37c/0x3e0 [ 14.772402][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 14.772405][ T201] ? __lock_acquire+0x518/0xc20 [ 14.772409][ T201] _printk+0xc7/0x100 [ 14.772413][ T201] ? snapshot_read.cold+0x21/0x21 [ 14.772415][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.772418][ T201] ? __rwlock_init+0x150/0x150 [ 14.772422][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.772425][ T201] do_exit.cold+0x82/0x9c [ 14.772428][ T201] ? exit_notify+0x890/0x890 [ 14.772430][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 14.772433][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.772436][ T201] do_group_exit+0xb8/0x370 [ 14.772439][ T201] __x64_sys_exit_group+0x3c/0x50 [ 14.772441][ T201] x64_sys_call+0x1567/0x1570 [ 14.772443][ T201] do_syscall_64+0xff/0x530 [ 14.772447][ T201] ? exc_page_fault+0xee/0x100 [ 14.772450][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.772453][ T201] RIP: 0033:0x7fe624ba41b8 [ 14.772455][ T201] Code: Unable to access opcode bytes at 0x7fe624ba418e. [ 14.772456][ T201] RSP: 002b:00007fffc8712da8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.772458][ T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe624ba41b8 [ 14.772460][ T201] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.772460][ T201] RBP: 00007fffc8712f30 R08: 0000556a76f99ed8 R09: 0000000000000000 [ 14.772461][ T201] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.772462][ T201] R13: 00007fe624402050 R14: 00007fe6250d5d9e R15: 0000556a76e13220 [ 14.772469][ T201]