[ 14.782476][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 14.782498][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.782501][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 14.782503][ T89] preempt_count: 2, expected: 0 [ 14.782504][ T89] RCU nest depth: 0, expected: 0 [ 14.782506][ T89] locks held by (udev-worker)/89: 5, last CPU#0: [ 14.782508][ T89] #0: ffffffffae0167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.782523][ T89] #1: ffffffffae17ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.782531][ T89] #2: ffffffffae17de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.782537][ T89] #3: ffffffffae09d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.782543][ T89] #4: ffffffffae09d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.782549][ T89] irq event stamp: 396676 [ 14.782550][ T89] hardirqs last enabled at (396675): [] __down_trylock_console_sem+0x86/0xa0 [ 14.782554][ T89] hardirqs last disabled at (396676): [] console_emit_next_record+0x3d4/0x4c0 [ 14.782557][ T89] softirqs last enabled at (396606): [] netlink_release+0x17b/0xcf0 [ 14.782562][ T89] softirqs last disabled at (396604): [] netlink_release+0xd2/0xcf0 [ 14.782566][ T89] Preemption disabled at: [ 14.782567][ T89] [<0000000000000000>] 0x0 [ 14.782575][ T89] CPU: 0 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.782580][ T89] Tainted: [W]=WARN [ 14.782581][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.782583][ T89] Call Trace: [ 14.782585][ T89] [ 14.782587][ T89] dump_stack_lvl+0x6f/0xa0 [ 14.782595][ T89] __might_resched.cold+0x1fe/0x2c1 [ 14.782601][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.782607][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 14.782613][ T89] __kmalloc_noprof+0x443/0x760 [ 14.782616][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 14.782626][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 14.782630][ T89] alloc_buf.isra.0+0x4b/0x260 [ 14.782636][ T89] put_chars+0x1e1/0x2f0 [ 14.782640][ T89] ? __send_to_port+0x420/0x420 [ 14.782642][ T89] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.782647][ T89] ? validate_chain+0x38b/0xc20 [ 14.782656][ T89] hvc_console_print+0x292/0x780 [ 14.782668][ T89] ? hvc_write+0x3a0/0x3a0 [ 14.782672][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.782675][ T89] ? lock_acquire+0x13c/0x160 [ 14.782682][ T89] console_emit_next_record+0x22f/0x4c0 [ 14.782688][ T89] ? devkmsg_read+0x4b0/0x4b0 [ 14.782691][ T89] ? console_flush_one_record+0x106/0x710 [ 14.782696][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.782699][ T89] ? lock_acquire+0x13c/0x160 [ 14.782706][ T89] console_flush_one_record+0x46f/0x710 [ 14.782713][ T89] ? console_emit_next_record+0x4c0/0x4c0 [ 14.782715][ T89] ? __lock_acquire+0x518/0xc20 [ 14.782726][ T89] console_unlock+0xee/0x1f0 [ 14.782730][ T89] ? console_flush_one_record+0x710/0x710 [ 14.782733][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.782736][ T89] ? lock_acquire+0xe0/0x160 [ 14.782742][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.782745][ T89] ? vprintk_emit+0x320/0x3e0 [ 14.782750][ T89] vprintk_emit+0x37c/0x3e0 [ 14.782755][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 14.782760][ T89] ? __lock_acquire+0x518/0xc20 [ 14.782766][ T89] _printk+0xc7/0x100 [ 14.782771][ T89] ? snapshot_read.cold+0x21/0x21 [ 14.782776][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.782780][ T89] ? __rwlock_init+0x150/0x150 [ 14.782786][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.782791][ T89] do_exit.cold+0x82/0x9c [ 14.782796][ T89] ? exit_notify+0x890/0x890 [ 14.782798][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 14.782803][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.782809][ T89] do_group_exit+0xb8/0x370 [ 14.782814][ T89] __x64_sys_exit_group+0x3c/0x50 [ 14.782817][ T89] x64_sys_call+0x1567/0x1570 [ 14.782820][ T89] do_syscall_64+0xff/0x530 [ 14.782825][ T89] ? exc_page_fault+0xee/0x100 [ 14.782829][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.782833][ T89] RIP: 0033:0x7f61a4b1d1b8 [ 14.782836][ T89] Code: Unable to access opcode bytes at 0x7f61a4b1d18e. [ 14.782837][ T89] RSP: 002b:00007fff945bfa68 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.782841][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f61a4b1d1b8 [ 14.782843][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.782844][ T89] RBP: 00007fff945bfbf0 R08: 0000557a3e57c308 R09: 0000000000000000 [ 14.782845][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.782847][ T89] R13: 00007f61a437b050 R14: 00007f61a504ed9e R15: 0000557a3e577350 [ 14.782859][ T89]