[ 12.591299][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 12.591319][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.591321][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 12.591323][ T89] preempt_count: 2, expected: 0 [ 12.591323][ T89] RCU nest depth: 0, expected: 0 [ 12.591325][ T89] locks held by (udev-worker)/89: 5, last CPU#0: [ 12.591327][ T89] #0: ffffffffa78027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.591340][ T89] #1: ffffffffa7999dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.591346][ T89] #2: ffffffffa7999e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.591350][ T89] #3: ffffffffa7889760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.591354][ T89] #4: ffffffffa7889660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.591359][ T89] irq event stamp: 395098 [ 12.591360][ T89] hardirqs last enabled at (395097): [] __down_trylock_console_sem+0x86/0xa0 [ 12.591363][ T89] hardirqs last disabled at (395098): [] console_emit_next_record+0x3f8/0x4f0 [ 12.591365][ T89] softirqs last enabled at (395034): [] netlink_release+0x17b/0xcf0 [ 12.591370][ T89] softirqs last disabled at (395032): [] netlink_release+0xd2/0xcf0 [ 12.591373][ T89] Preemption disabled at: [ 12.591373][ T89] [<0000000000000000>] 0x0 [ 12.591381][ T89] CPU: 0 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.591385][ T89] Tainted: [W]=WARN [ 12.591386][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.591388][ T89] Call Trace: [ 12.591390][ T89] [ 12.591391][ T89] dump_stack_lvl+0x6f/0xa0 [ 12.591398][ T89] __might_resched.cold+0x1fe/0x2c1 [ 12.591405][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.591412][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 12.591418][ T89] __kmalloc_noprof+0x443/0x760 [ 12.591421][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 12.591428][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 12.591431][ T89] alloc_buf.isra.0+0x4b/0x260 [ 12.591435][ T89] put_chars+0x1e1/0x2f0 [ 12.591439][ T89] ? __send_to_port+0x420/0x420 [ 12.591441][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 12.591445][ T89] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.591448][ T89] ? validate_chain+0x38b/0xc20 [ 12.591452][ T89] hvc_console_print+0x292/0x780 [ 12.591456][ T89] ? __lock_acquire+0x518/0xc20 [ 12.591458][ T89] ? __lock_acquire+0x518/0xc20 [ 12.591462][ T89] ? hvc_write+0x3a0/0x3a0 [ 12.591466][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.591470][ T89] ? lock_acquire+0x13c/0x160 [ 12.591474][ T89] console_emit_next_record+0x252/0x4f0 [ 12.591478][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 12.591482][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.591485][ T89] ? lock_acquire+0x13c/0x160 [ 12.591489][ T89] console_flush_one_record+0x46f/0x710 [ 12.591493][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 12.591495][ T89] ? __lock_acquire+0x518/0xc20 [ 12.591501][ T89] console_unlock+0xee/0x1f0 [ 12.591504][ T89] ? console_flush_one_record+0x710/0x710 [ 12.591506][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.591508][ T89] ? lock_acquire+0xa0/0x160 [ 12.591512][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.591514][ T89] ? vprintk_emit+0x320/0x3e0 [ 12.591517][ T89] vprintk_emit+0x37c/0x3e0 [ 12.591521][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 12.591525][ T89] ? __lock_acquire+0x518/0xc20 [ 12.591529][ T89] _printk+0xc7/0x100 [ 12.591532][ T89] ? snapshot_read.cold+0x21/0x21 [ 12.591535][ T89] ? do_raw_spin_lock+0x131/0x280 [ 12.591538][ T89] ? __rwlock_init+0x150/0x150 [ 12.591542][ T89] ? do_raw_spin_lock+0x131/0x280 [ 12.591545][ T89] do_exit.cold+0x82/0x9c [ 12.591549][ T89] ? exit_notify+0x890/0x890 [ 12.591550][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 12.591553][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.591557][ T89] do_group_exit+0xb8/0x370 [ 12.591560][ T89] __x64_sys_exit_group+0x3c/0x50 [ 12.591562][ T89] x64_sys_call+0x1567/0x1570 [ 12.591564][ T89] do_syscall_64+0xff/0x530 [ 12.591567][ T89] ? irq_exit_rcu+0x1a/0x30 [ 12.591570][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.591573][ T89] RIP: 0033:0x7f386b27c1b8 [ 12.591575][ T89] Code: Unable to access opcode bytes at 0x7f386b27c18e. [ 12.591576][ T89] RSP: 002b:00007ffd91365158 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.591579][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f386b27c1b8 [ 12.591581][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.591582][ T89] RBP: 00007ffd913652e0 R08: 00005628a0427578 R09: 0000000000000000 [ 12.591582][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.591583][ T89] R13: 00007f386aada050 R14: 00007f386b7add9e R15: 00005628a02c16d0 [ 12.591590][ T89]