[ 14.281209][ T183] (udev-worker) (183) used greatest stack depth: 22696 bytes left [ 14.281232][ T183] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.281234][ T183] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 183, name: (udev-worker) [ 14.281237][ T183] preempt_count: 2, expected: 0 [ 14.281238][ T183] RCU nest depth: 0, expected: 0 [ 14.281240][ T183] locks held by (udev-worker)/183: 5, last CPU#1: [ 14.281242][ T183] #0: ffffffffa2e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.281257][ T183] #1: ffffffffa2f99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.281264][ T183] #2: ffffffffa2f99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.281270][ T183] #3: ffffffffa2e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.281276][ T183] #4: ffffffffa2e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.281282][ T183] irq event stamp: 165310 [ 14.281283][ T183] hardirqs last enabled at (165309): [] __down_trylock_console_sem+0x86/0xa0 [ 14.281288][ T183] hardirqs last disabled at (165310): [] console_emit_next_record+0x3f8/0x4f0 [ 14.281291][ T183] softirqs last enabled at (165246): [] netlink_release+0x17b/0xcf0 [ 14.281296][ T183] softirqs last disabled at (165244): [] netlink_release+0xd2/0xcf0 [ 14.281300][ T183] Preemption disabled at: [ 14.281300][ T183] [<0000000000000000>] 0x0 [ 14.281309][ T183] CPU: 1 UID: 0 PID: 183 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.281314][ T183] Tainted: [W]=WARN [ 14.281315][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.281317][ T183] Call Trace: [ 14.281320][ T183] [ 14.281322][ T183] dump_stack_lvl+0x6f/0xa0 [ 14.281330][ T183] __might_resched.cold+0x1fe/0x2c1 [ 14.281336][ T183] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.281342][ T183] ? __kmalloc_noprof+0xdb/0x760 [ 14.281350][ T183] __kmalloc_noprof+0x443/0x760 [ 14.281354][ T183] ? alloc_buf.isra.0+0x4b/0x260 [ 14.281363][ T183] ? do_raw_spin_unlock+0x59/0x250 [ 14.281366][ T183] alloc_buf.isra.0+0x4b/0x260 [ 14.281372][ T183] put_chars+0x1e1/0x2f0 [ 14.281377][ T183] ? __send_to_port+0x420/0x420 [ 14.281379][ T183] ? printk_get_next_message+0x2fe/0x7d0 [ 14.281385][ T183] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.281390][ T183] ? validate_chain+0x38b/0xc20 [ 14.281397][ T183] hvc_console_print+0x292/0x780 [ 14.281401][ T183] ? __lock_acquire+0x518/0xc20 [ 14.281403][ T183] ? __lock_acquire+0x518/0xc20 [ 14.281410][ T183] ? hvc_write+0x3a0/0x3a0 [ 14.281415][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.281418][ T183] ? lock_acquire+0x13c/0x160 [ 14.281425][ T183] console_emit_next_record+0x252/0x4f0 [ 14.281431][ T183] ? devkmsg_read+0x4e0/0x4e0 [ 14.281438][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.281441][ T183] ? lock_acquire+0x13c/0x160 [ 14.281447][ T183] console_flush_one_record+0x46f/0x710 [ 14.281454][ T183] ? console_emit_next_record+0x4f0/0x4f0 [ 14.281456][ T183] ? __lock_acquire+0x518/0xc20 [ 14.281465][ T183] console_unlock+0xee/0x1f0 [ 14.281469][ T183] ? console_flush_one_record+0x710/0x710 [ 14.281471][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.281474][ T183] ? lock_acquire+0x60/0x160 [ 14.281480][ T183] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.281483][ T183] ? vprintk_emit+0x320/0x3e0 [ 14.281487][ T183] vprintk_emit+0x37c/0x3e0 [ 14.281492][ T183] ? wake_up_klogd_work_func+0x90/0x90 [ 14.281497][ T183] ? __lock_acquire+0x518/0xc20 [ 14.281504][ T183] _printk+0xc7/0x100 [ 14.281509][ T183] ? snapshot_read.cold+0x21/0x21 [ 14.281513][ T183] ? do_raw_spin_lock+0x131/0x280 [ 14.281517][ T183] ? __rwlock_init+0x150/0x150 [ 14.281523][ T183] ? do_raw_spin_lock+0x131/0x280 [ 14.281533][ T183] do_exit.cold+0x82/0x9c [ 14.281539][ T183] ? exit_notify+0x890/0x890 [ 14.281541][ T183] ? __lock_release.isra.0+0x69/0x1a0 [ 14.281546][ T183] ? rcu_is_watching+0x16/0xd0 [ 14.281552][ T183] do_group_exit+0xb8/0x370 [ 14.281557][ T183] __x64_sys_exit_group+0x3c/0x50 [ 14.281560][ T183] x64_sys_call+0x1567/0x1570 [ 14.281563][ T183] do_syscall_64+0xff/0x530 [ 14.281568][ T183] ? exc_page_fault+0xee/0x100 [ 14.281572][ T183] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.281578][ T183] RIP: 0033:0x7f245f3161b8 [ 14.281581][ T183] Code: Unable to access opcode bytes at 0x7f245f31618e. [ 14.281582][ T183] RSP: 002b:00007fffd45beff8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.281586][ T183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f245f3161b8 [ 14.281588][ T183] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.281589][ T183] RBP: 00007fffd45bf180 R08: 0000558d4342d6c8 R09: 0000000000000000 [ 14.281590][ T183] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.281591][ T183] R13: 00007f245eb74050 R14: 00007f245f847d9e R15: 0000558d432b2280 [ 14.281599][ T183]