[ 13.824159][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 13.824180][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.824182][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 13.824183][ T89] preempt_count: 2, expected: 0 [ 13.824184][ T89] RCU nest depth: 0, expected: 0 [ 13.824185][ T89] locks held by (udev-worker)/89: 5, last CPU#2: [ 13.824188][ T89] #0: ffffffffb78027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.824200][ T89] #1: ffffffffb7969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.824206][ T89] #2: ffffffffb7969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.824210][ T89] #3: ffffffffb7889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.824214][ T89] #4: ffffffffb7889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.824218][ T89] irq event stamp: 492232 [ 13.824219][ T89] hardirqs last enabled at (492231): [] __down_trylock_console_sem+0x86/0xa0 [ 13.824221][ T89] hardirqs last disabled at (492232): [] console_emit_next_record+0x3d4/0x4c0 [ 13.824223][ T89] softirqs last enabled at (492168): [] netlink_release+0x17b/0xcf0 [ 13.824227][ T89] softirqs last disabled at (492166): [] netlink_release+0xd2/0xcf0 [ 13.824229][ T89] Preemption disabled at: [ 13.824230][ T89] [<0000000000000000>] 0x0 [ 13.824237][ T89] CPU: 2 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.824241][ T89] Tainted: [W]=WARN [ 13.824242][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.824243][ T89] Call Trace: [ 13.824245][ T89] [ 13.824247][ T89] dump_stack_lvl+0x6f/0xa0 [ 13.824253][ T89] __might_resched.cold+0x1fe/0x2c1 [ 13.824257][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.824261][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 13.824266][ T89] __kmalloc_noprof+0x443/0x760 [ 13.824270][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 13.824277][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 13.824279][ T89] alloc_buf.isra.0+0x4b/0x260 [ 13.824283][ T89] put_chars+0x1e1/0x2f0 [ 13.824286][ T89] ? __send_to_port+0x420/0x420 [ 13.824288][ T89] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.824293][ T89] ? validate_chain+0x38b/0xc20 [ 13.824298][ T89] hvc_console_print+0x292/0x780 [ 13.824305][ T89] ? hvc_write+0x3a0/0x3a0 [ 13.824308][ T89] ? rcu_is_watching+0x16/0xd0 [ 13.824310][ T89] ? lock_acquire+0x13c/0x160 [ 13.824314][ T89] console_emit_next_record+0x22f/0x4c0 [ 13.824318][ T89] ? devkmsg_read+0x4b0/0x4b0 [ 13.824319][ T89] ? console_flush_one_record+0x106/0x710 [ 13.824322][ T89] ? rcu_is_watching+0x16/0xd0 [ 13.824324][ T89] ? lock_acquire+0x13c/0x160 [ 13.824328][ T89] console_flush_one_record+0x46f/0x710 [ 13.824332][ T89] ? console_emit_next_record+0x4c0/0x4c0 [ 13.824334][ T89] ? __lock_acquire+0x518/0xc20 [ 13.824339][ T89] console_unlock+0xee/0x1f0 [ 13.824341][ T89] ? console_flush_one_record+0x710/0x710 [ 13.824343][ T89] ? rcu_is_watching+0x16/0xd0 [ 13.824345][ T89] ? lock_acquire+0x60/0x160 [ 13.824349][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.824350][ T89] ? vprintk_emit+0x320/0x3e0 [ 13.824353][ T89] vprintk_emit+0x37c/0x3e0 [ 13.824357][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 13.824360][ T89] ? __lock_acquire+0x518/0xc20 [ 13.824364][ T89] _printk+0xc7/0x100 [ 13.824368][ T89] ? snapshot_read.cold+0x21/0x21 [ 13.824371][ T89] ? do_raw_spin_lock+0x131/0x280 [ 13.824373][ T89] ? __rwlock_init+0x150/0x150 [ 13.824377][ T89] ? do_raw_spin_lock+0x131/0x280 [ 13.824379][ T89] do_exit.cold+0x82/0x9c [ 13.824383][ T89] ? exit_notify+0x890/0x890 [ 13.824385][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 13.824387][ T89] ? rcu_is_watching+0x16/0xd0 [ 13.824391][ T89] do_group_exit+0xb8/0x370 [ 13.824395][ T89] __x64_sys_exit_group+0x3c/0x50 [ 13.824397][ T89] x64_sys_call+0x1567/0x1570 [ 13.824399][ T89] do_syscall_64+0xff/0x530 [ 13.824403][ T89] ? exc_page_fault+0xee/0x100 [ 13.824406][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.824408][ T89] RIP: 0033:0x7f50f224a1b8 [ 13.824411][ T89] Code: Unable to access opcode bytes at 0x7f50f224a18e. [ 13.824412][ T89] RSP: 002b:00007ffd09515358 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.824415][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f50f224a1b8 [ 13.824416][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.824417][ T89] RBP: 00007ffd095154e0 R08: 000055dedbbdf7a8 R09: 0000000000000000 [ 13.824418][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.824419][ T89] R13: 00007f50f1aa8050 R14: 00007f50f277bd9e R15: 000055dedba2e030 [ 13.824426][ T89]