[ 40.620367][ T203] (udev-worker) (203) used greatest stack depth: 22696 bytes left [ 40.620388][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 40.620390][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: (udev-worker) [ 40.620392][ T203] preempt_count: 2, expected: 0 [ 40.620393][ T203] RCU nest depth: 0, expected: 0 [ 40.620394][ T203] locks held by (udev-worker)/203: 5, last CPU#1: [ 40.620396][ T203] #0: ffffffffb52167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 40.620407][ T203] #1: ffffffffb537ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 40.620415][ T203] #2: ffffffffb537de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 40.620420][ T203] #3: ffffffffb529d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 40.620424][ T203] #4: ffffffffb529d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 40.620428][ T203] irq event stamp: 4952814 [ 40.620429][ T203] hardirqs last enabled at (4952813): [] __down_trylock_console_sem+0x86/0xa0 [ 40.620432][ T203] hardirqs last disabled at (4952814): [] console_emit_next_record+0x3d4/0x4c0 [ 40.620434][ T203] softirqs last enabled at (4952744): [] netlink_release+0x17b/0xcf0 [ 40.620438][ T203] softirqs last disabled at (4952742): [] netlink_release+0xd2/0xcf0 [ 40.620440][ T203] Preemption disabled at: [ 40.620441][ T203] [<0000000000000000>] 0x0 [ 40.620448][ T203] CPU: 1 UID: 0 PID: 203 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 40.620451][ T203] Tainted: [W]=WARN [ 40.620453][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.620454][ T203] Call Trace: [ 40.620456][ T203] [ 40.620457][ T203] dump_stack_lvl+0x6f/0xa0 [ 40.620464][ T203] __might_resched.cold+0x1fe/0x2c1 [ 40.620468][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 40.620472][ T203] ? __kmalloc_noprof+0xdb/0x760 [ 40.620477][ T203] __kmalloc_noprof+0x443/0x760 [ 40.620478][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 40.620485][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 40.620488][ T203] alloc_buf.isra.0+0x4b/0x260 [ 40.620492][ T203] put_chars+0x1e1/0x2f0 [ 40.620494][ T203] ? __send_to_port+0x420/0x420 [ 40.620495][ T203] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 40.620499][ T203] ? validate_chain+0x38b/0xc20 [ 40.620504][ T203] hvc_console_print+0x292/0x780 [ 40.620511][ T203] ? hvc_write+0x3a0/0x3a0 [ 40.620514][ T203] ? rcu_is_watching+0x16/0xd0 [ 40.620516][ T203] ? lock_acquire+0x13c/0x160 [ 40.620520][ T203] console_emit_next_record+0x22f/0x4c0 [ 40.620524][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 40.620525][ T203] ? console_flush_one_record+0x106/0x710 [ 40.620529][ T203] ? rcu_is_watching+0x16/0xd0 [ 40.620531][ T203] ? lock_acquire+0x13c/0x160 [ 40.620534][ T203] console_flush_one_record+0x46f/0x710 [ 40.620539][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 40.620541][ T203] ? __lock_acquire+0x518/0xc20 [ 40.620546][ T203] console_unlock+0xee/0x1f0 [ 40.620549][ T203] ? console_flush_one_record+0x710/0x710 [ 40.620550][ T203] ? rcu_is_watching+0x16/0xd0 [ 40.620552][ T203] ? lock_acquire+0xe0/0x160 [ 40.620556][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 40.620557][ T203] ? vprintk_emit+0x320/0x3e0 [ 40.620560][ T203] vprintk_emit+0x37c/0x3e0 [ 40.620563][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 40.620566][ T203] ? __lock_acquire+0x518/0xc20 [ 40.620570][ T203] _printk+0xc7/0x100 [ 40.620573][ T203] ? snapshot_read.cold+0x21/0x21 [ 40.620576][ T203] ? do_raw_spin_lock+0x131/0x280 [ 40.620579][ T203] ? __rwlock_init+0x150/0x150 [ 40.620582][ T203] ? do_raw_spin_lock+0x131/0x280 [ 40.620585][ T203] do_exit.cold+0x82/0x9c [ 40.620589][ T203] ? exit_notify+0x890/0x890 [ 40.620590][ T203] ? __lock_release.isra.0+0x69/0x1a0 [ 40.620593][ T203] ? rcu_is_watching+0x16/0xd0 [ 40.620596][ T203] do_group_exit+0xb8/0x370 [ 40.620599][ T203] __x64_sys_exit_group+0x3c/0x50 [ 40.620601][ T203] x64_sys_call+0x1567/0x1570 [ 40.620603][ T203] do_syscall_64+0xff/0x530 [ 40.620607][ T203] ? exc_page_fault+0xee/0x100 [ 40.620610][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.620612][ T203] RIP: 0033:0x7fa5c34281b8 [ 40.620614][ T203] Code: Unable to access opcode bytes at 0x7fa5c342818e. [ 40.620616][ T203] RSP: 002b:00007ffd99a5b988 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 40.620618][ T203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa5c34281b8 [ 40.620619][ T203] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 40.620620][ T203] RBP: 00007ffd99a5bb10 R08: 0000557318a909d8 R09: 0000000000000000 [ 40.620621][ T203] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 40.620622][ T203] R13: 00007fa5c2c86050 R14: 00007fa5c3959d9e R15: 0000557318a6f510 [ 40.620628][ T203]