[ 16.098072][ T85] (udev-worker) (85) used greatest stack depth: 22696 bytes left [ 16.098093][ T85] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 16.098096][ T85] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 85, name: (udev-worker) [ 16.098097][ T85] preempt_count: 2, expected: 0 [ 16.098098][ T85] RCU nest depth: 0, expected: 0 [ 16.098099][ T85] locks held by (udev-worker)/85: 5, last CPU#0: [ 16.098102][ T85] #0: ffffffff9ce027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 16.098115][ T85] #1: ffffffff9cf99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 16.098121][ T85] #2: ffffffff9cf99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 16.098125][ T85] #3: ffffffff9ce89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 16.098128][ T85] #4: ffffffff9ce89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 16.098132][ T85] irq event stamp: 474930 [ 16.098133][ T85] hardirqs last enabled at (474929): [] __down_trylock_console_sem+0x86/0xa0 [ 16.098135][ T85] hardirqs last disabled at (474930): [] console_emit_next_record+0x3f8/0x4f0 [ 16.098137][ T85] softirqs last enabled at (474866): [] netlink_release+0x17b/0xcf0 [ 16.098142][ T85] softirqs last disabled at (474864): [] netlink_release+0xd2/0xcf0 [ 16.098144][ T85] Preemption disabled at: [ 16.098145][ T85] [<0000000000000000>] 0x0 [ 16.098153][ T85] CPU: 0 UID: 0 PID: 85 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 16.098156][ T85] Tainted: [W]=WARN [ 16.098157][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.098159][ T85] Call Trace: [ 16.098160][ T85] [ 16.098162][ T85] dump_stack_lvl+0x6f/0xa0 [ 16.098168][ T85] __might_resched.cold+0x1fe/0x2c1 [ 16.098173][ T85] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 16.098177][ T85] ? __kmalloc_noprof+0xdb/0x760 [ 16.098182][ T85] __kmalloc_noprof+0x443/0x760 [ 16.098184][ T85] ? alloc_buf.isra.0+0x4b/0x260 [ 16.098192][ T85] ? do_raw_spin_unlock+0x59/0x250 [ 16.098195][ T85] alloc_buf.isra.0+0x4b/0x260 [ 16.098200][ T85] put_chars+0x1e1/0x2f0 [ 16.098204][ T85] ? __send_to_port+0x420/0x420 [ 16.098205][ T85] ? printk_get_next_message+0x2fe/0x7d0 [ 16.098208][ T85] ? rcu_read_lock_any_held+0x3c/0x90 [ 16.098212][ T85] ? validate_chain+0x38b/0xc20 [ 16.098216][ T85] hvc_console_print+0x292/0x780 [ 16.098219][ T85] ? __lock_acquire+0x518/0xc20 [ 16.098220][ T85] ? __lock_acquire+0x518/0xc20 [ 16.098224][ T85] ? hvc_write+0x3a0/0x3a0 [ 16.098228][ T85] ? rcu_is_watching+0x16/0xd0 [ 16.098230][ T85] ? lock_acquire+0x13c/0x160 [ 16.098234][ T85] console_emit_next_record+0x252/0x4f0 [ 16.098238][ T85] ? devkmsg_read+0x4e0/0x4e0 [ 16.098242][ T85] ? rcu_is_watching+0x16/0xd0 [ 16.098244][ T85] ? lock_acquire+0x13c/0x160 [ 16.098248][ T85] console_flush_one_record+0x46f/0x710 [ 16.098252][ T85] ? console_emit_next_record+0x4f0/0x4f0 [ 16.098253][ T85] ? __lock_acquire+0x518/0xc20 [ 16.098258][ T85] console_unlock+0xee/0x1f0 [ 16.098261][ T85] ? console_flush_one_record+0x710/0x710 [ 16.098262][ T85] ? rcu_is_watching+0x16/0xd0 [ 16.098264][ T85] ? lock_acquire+0x60/0x160 [ 16.098268][ T85] ? __down_trylock_console_sem+0x5e/0xa0 [ 16.098269][ T85] ? vprintk_emit+0x320/0x3e0 [ 16.098272][ T85] vprintk_emit+0x37c/0x3e0 [ 16.098276][ T85] ? wake_up_klogd_work_func+0x90/0x90 [ 16.098279][ T85] ? __lock_acquire+0x518/0xc20 [ 16.098283][ T85] _printk+0xc7/0x100 [ 16.098287][ T85] ? snapshot_read.cold+0x21/0x21 [ 16.098289][ T85] ? do_raw_spin_lock+0x131/0x280 [ 16.098292][ T85] ? __rwlock_init+0x150/0x150 [ 16.098295][ T85] ? do_raw_spin_lock+0x131/0x280 [ 16.098298][ T85] do_exit.cold+0x82/0x9c [ 16.098302][ T85] ? exit_notify+0x890/0x890 [ 16.098303][ T85] ? __lock_release.isra.0+0x69/0x1a0 [ 16.098306][ T85] ? rcu_is_watching+0x16/0xd0 [ 16.098310][ T85] do_group_exit+0xb8/0x370 [ 16.098313][ T85] __x64_sys_exit_group+0x3c/0x50 [ 16.098315][ T85] x64_sys_call+0x1567/0x1570 [ 16.098318][ T85] do_syscall_64+0xff/0x530 [ 16.098321][ T85] ? exc_page_fault+0xee/0x100 [ 16.098324][ T85] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.098327][ T85] RIP: 0033:0x7ffb0b6631b8 [ 16.098329][ T85] Code: Unable to access opcode bytes at 0x7ffb0b66318e. [ 16.098330][ T85] RSP: 002b:00007fff2864c388 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 16.098333][ T85] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffb0b6631b8 [ 16.098334][ T85] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 16.098335][ T85] RBP: 00007fff2864c510 R08: 0000560a43043208 R09: 0000000000000000 [ 16.098336][ T85] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 16.098337][ T85] R13: 00007ffb0aec1050 R14: 00007ffb0bb94d9e R15: 0000560a43045840 [ 16.098343][ T85]