[ 12.135046][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 12.135065][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.135067][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 12.135069][ T89] preempt_count: 2, expected: 0 [ 12.135070][ T89] RCU nest depth: 0, expected: 0 [ 12.135071][ T89] locks held by (udev-worker)/89: 5, last CPU#0: [ 12.135073][ T89] #0: ffffffffbae027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.135084][ T89] #1: ffffffffbaf99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.135090][ T89] #2: ffffffffbaf99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.135095][ T89] #3: ffffffffbae89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.135099][ T89] #4: ffffffffbae89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.135103][ T89] irq event stamp: 398782 [ 12.135104][ T89] hardirqs last enabled at (398781): [] __down_trylock_console_sem+0x86/0xa0 [ 12.135106][ T89] hardirqs last disabled at (398782): [] console_emit_next_record+0x3f8/0x4f0 [ 12.135108][ T89] softirqs last enabled at (398716): [] handle_softirqs+0x67c/0x900 [ 12.135111][ T89] softirqs last disabled at (397959): [] do_softirq+0xac/0xe0 [ 12.135113][ T89] Preemption disabled at: [ 12.135114][ T89] [<0000000000000000>] 0x0 [ 12.135121][ T89] CPU: 0 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.135125][ T89] Tainted: [W]=WARN [ 12.135126][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.135127][ T89] Call Trace: [ 12.135129][ T89] [ 12.135131][ T89] dump_stack_lvl+0x6f/0xa0 [ 12.135137][ T89] __might_resched.cold+0x1fe/0x2c1 [ 12.135142][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.135146][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 12.135151][ T89] __kmalloc_noprof+0x443/0x760 [ 12.135154][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 12.135160][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 12.135163][ T89] alloc_buf.isra.0+0x4b/0x260 [ 12.135166][ T89] put_chars+0x1e1/0x2f0 [ 12.135170][ T89] ? __send_to_port+0x420/0x420 [ 12.135172][ T89] ? printk_get_next_message+0x2fe/0x7d0 [ 12.135175][ T89] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.135179][ T89] ? validate_chain+0x38b/0xc20 [ 12.135183][ T89] hvc_console_print+0x292/0x780 [ 12.135187][ T89] ? __lock_acquire+0x518/0xc20 [ 12.135188][ T89] ? __lock_acquire+0x518/0xc20 [ 12.135193][ T89] ? hvc_write+0x3a0/0x3a0 [ 12.135197][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.135200][ T89] ? lock_acquire+0x13c/0x160 [ 12.135204][ T89] console_emit_next_record+0x252/0x4f0 [ 12.135208][ T89] ? devkmsg_read+0x4e0/0x4e0 [ 12.135213][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.135215][ T89] ? lock_acquire+0x13c/0x160 [ 12.135219][ T89] console_flush_one_record+0x46f/0x710 [ 12.135223][ T89] ? console_emit_next_record+0x4f0/0x4f0 [ 12.135225][ T89] ? __lock_acquire+0x518/0xc20 [ 12.135230][ T89] console_unlock+0xee/0x1f0 [ 12.135233][ T89] ? console_flush_one_record+0x710/0x710 [ 12.135235][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.135238][ T89] ? lock_acquire+0xa0/0x160 [ 12.135241][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.135243][ T89] ? vprintk_emit+0x320/0x3e0 [ 12.135246][ T89] vprintk_emit+0x37c/0x3e0 [ 12.135250][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 12.135254][ T89] ? __lock_acquire+0x518/0xc20 [ 12.135258][ T89] _printk+0xc7/0x100 [ 12.135261][ T89] ? snapshot_read.cold+0x21/0x21 [ 12.135264][ T89] ? do_raw_spin_lock+0x131/0x280 [ 12.135267][ T89] ? __rwlock_init+0x150/0x150 [ 12.135271][ T89] ? do_raw_spin_lock+0x131/0x280 [ 12.135274][ T89] do_exit.cold+0x82/0x9c [ 12.135277][ T89] ? exit_notify+0x890/0x890 [ 12.135279][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 12.135281][ T89] ? rcu_is_watching+0x16/0xd0 [ 12.135286][ T89] do_group_exit+0xb8/0x370 [ 12.135293][ T89] __x64_sys_exit_group+0x3c/0x50 [ 12.135294][ T89] x64_sys_call+0x1567/0x1570 [ 12.135296][ T89] do_syscall_64+0xff/0x530 [ 12.135300][ T89] ? exc_page_fault+0xee/0x100 [ 12.135304][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.135306][ T89] RIP: 0033:0x7f684ff2d1b8 [ 12.135308][ T89] Code: Unable to access opcode bytes at 0x7f684ff2d18e. [ 12.135309][ T89] RSP: 002b:00007fffa778a0b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.135312][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f684ff2d1b8 [ 12.135313][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.135314][ T89] RBP: 00007fffa778a240 R08: 0000559e494b9818 R09: 0000000000000000 [ 12.135315][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.135316][ T89] R13: 00007f684f78b050 R14: 00007f685045ed9e R15: 0000559e4932f490 [ 12.135322][ T89]