[ 23.640890][ T81] (udev-worker) (81) used greatest stack depth: 22760 bytes left [ 23.640909][ T81] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 23.640911][ T81] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 81, name: (udev-worker) [ 23.640913][ T81] preempt_count: 2, expected: 0 [ 23.640914][ T81] RCU nest depth: 0, expected: 0 [ 23.640915][ T81] locks held by (udev-worker)/81: 5, last CPU#1: [ 23.640917][ T81] #0: ffffffffa12027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 23.640929][ T81] #1: ffffffffa1369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 23.640934][ T81] #2: ffffffffa1369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 23.640938][ T81] #3: ffffffffa1289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 23.640942][ T81] #4: ffffffffa1289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 23.640945][ T81] irq event stamp: 879368 [ 23.640946][ T81] hardirqs last enabled at (879367): [] __down_trylock_console_sem+0x86/0xa0 [ 23.640949][ T81] hardirqs last disabled at (879368): [] console_emit_next_record+0x3d4/0x4c0 [ 23.640951][ T81] softirqs last enabled at (879302): [] netlink_release+0x17b/0xcf0 [ 23.640962][ T81] softirqs last disabled at (879300): [] netlink_release+0xd2/0xcf0 [ 23.640965][ T81] Preemption disabled at: [ 23.640966][ T81] [<0000000000000000>] 0x0 [ 23.640973][ T81] CPU: 1 UID: 0 PID: 81 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 23.640976][ T81] Tainted: [W]=WARN [ 23.640977][ T81] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.640979][ T81] Call Trace: [ 23.640980][ T81] [ 23.640982][ T81] dump_stack_lvl+0x6f/0xa0 [ 23.640987][ T81] __might_resched.cold+0x1fe/0x2c1 [ 23.640992][ T81] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 23.640996][ T81] ? __kmalloc_noprof+0xdb/0x760 [ 23.641001][ T81] __kmalloc_noprof+0x443/0x760 [ 23.641004][ T81] ? alloc_buf.isra.0+0x4b/0x260 [ 23.641009][ T81] ? do_raw_spin_unlock+0x59/0x250 [ 23.641013][ T81] alloc_buf.isra.0+0x4b/0x260 [ 23.641016][ T81] put_chars+0x1e1/0x2f0 [ 23.641020][ T81] ? __send_to_port+0x420/0x420 [ 23.641021][ T81] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 23.641025][ T81] ? validate_chain+0x38b/0xc20 [ 23.641031][ T81] hvc_console_print+0x292/0x780 [ 23.641038][ T81] ? hvc_write+0x3a0/0x3a0 [ 23.641041][ T81] ? rcu_is_watching+0x16/0xd0 [ 23.641043][ T81] ? lock_acquire+0x13c/0x160 [ 23.641048][ T81] console_emit_next_record+0x22f/0x4c0 [ 23.641051][ T81] ? devkmsg_read+0x4b0/0x4b0 [ 23.641052][ T81] ? console_flush_one_record+0x106/0x710 [ 23.641055][ T81] ? rcu_is_watching+0x16/0xd0 [ 23.641057][ T81] ? lock_acquire+0x13c/0x160 [ 23.641062][ T81] console_flush_one_record+0x46f/0x710 [ 23.641065][ T81] ? console_emit_next_record+0x4c0/0x4c0 [ 23.641067][ T81] ? __lock_acquire+0x518/0xc20 [ 23.641073][ T81] console_unlock+0xee/0x1f0 [ 23.641075][ T81] ? console_flush_one_record+0x710/0x710 [ 23.641076][ T81] ? rcu_is_watching+0x16/0xd0 [ 23.641078][ T81] ? lock_acquire+0x60/0x160 [ 23.641082][ T81] ? __down_trylock_console_sem+0x5e/0xa0 [ 23.641084][ T81] ? vprintk_emit+0x320/0x3e0 [ 23.641087][ T81] vprintk_emit+0x37c/0x3e0 [ 23.641090][ T81] ? wake_up_klogd_work_func+0x90/0x90 [ 23.641093][ T81] ? __lock_acquire+0x518/0xc20 [ 23.641097][ T81] _printk+0xc7/0x100 [ 23.641101][ T81] ? snapshot_read.cold+0x21/0x21 [ 23.641104][ T81] ? do_raw_spin_lock+0x131/0x280 [ 23.641107][ T81] ? __rwlock_init+0x150/0x150 [ 23.641111][ T81] ? do_raw_spin_lock+0x131/0x280 [ 23.641114][ T81] do_exit.cold+0x82/0x9c [ 23.641117][ T81] ? exit_notify+0x890/0x890 [ 23.641119][ T81] ? __lock_release.isra.0+0x69/0x1a0 [ 23.641122][ T81] ? rcu_is_watching+0x16/0xd0 [ 23.641126][ T81] do_group_exit+0xb8/0x370 [ 23.641129][ T81] __x64_sys_exit_group+0x3c/0x50 [ 23.641131][ T81] x64_sys_call+0x1567/0x1570 [ 23.641134][ T81] do_syscall_64+0xff/0x530 [ 23.641137][ T81] ? exc_page_fault+0xee/0x100 [ 23.641141][ T81] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 23.641143][ T81] RIP: 0033:0x7ff0feec01b8 [ 23.641145][ T81] Code: Unable to access opcode bytes at 0x7ff0feec018e. [ 23.641146][ T81] RSP: 002b:00007ffd0c8ca4e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 23.641149][ T81] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff0feec01b8 [ 23.641150][ T81] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 23.641151][ T81] RBP: 00007ffd0c8ca670 R08: 000055668f9d5f48 R09: 0000000000000000 [ 23.641152][ T81] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 23.641153][ T81] R13: 00007ff0fe71e050 R14: 00007ff0ff3f1d9e R15: 000055668f9dd330 [ 23.641160][ T81]