[ 12.222679][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 12.222747][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.222750][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 12.222752][ T84] preempt_count: 2, expected: 0 [ 12.222753][ T84] RCU nest depth: 0, expected: 0 [ 12.222754][ T84] locks held by (udev-worker)/84: 5, last CPU#1: [ 12.222756][ T84] #0: ffffffffbc2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.222767][ T84] #1: ffffffffbc399dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.222773][ T84] #2: ffffffffbc399e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.222777][ T84] #3: ffffffffbc289760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.222780][ T84] #4: ffffffffbc289660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.222784][ T84] irq event stamp: 431936 [ 12.222785][ T84] hardirqs last enabled at (431935): [] __down_trylock_console_sem+0x86/0xa0 [ 12.222788][ T84] hardirqs last disabled at (431936): [] console_emit_next_record+0x3f8/0x4f0 [ 12.222790][ T84] softirqs last enabled at (431866): [] netlink_release+0x17b/0xcf0 [ 12.222794][ T84] softirqs last disabled at (431864): [] netlink_release+0xd2/0xcf0 [ 12.222796][ T84] Preemption disabled at: [ 12.222797][ T84] [<0000000000000000>] 0x0 [ 12.222804][ T84] CPU: 1 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.222808][ T84] Tainted: [W]=WARN [ 12.222809][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.222810][ T84] Call Trace: [ 12.222812][ T84] [ 12.222814][ T84] dump_stack_lvl+0x6f/0xa0 [ 12.222821][ T84] __might_resched.cold+0x1fe/0x2c1 [ 12.222825][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.222829][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 12.222834][ T84] __kmalloc_noprof+0x443/0x760 [ 12.222837][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 12.222843][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 12.222846][ T84] alloc_buf.isra.0+0x4b/0x260 [ 12.222849][ T84] put_chars+0x1e1/0x2f0 [ 12.222853][ T84] ? __send_to_port+0x420/0x420 [ 12.222855][ T84] ? printk_get_next_message+0x2fe/0x7d0 [ 12.222858][ T84] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.222861][ T84] ? validate_chain+0x38b/0xc20 [ 12.222865][ T84] hvc_console_print+0x292/0x780 [ 12.222869][ T84] ? __lock_acquire+0x518/0xc20 [ 12.222871][ T84] ? __lock_acquire+0x518/0xc20 [ 12.222875][ T84] ? hvc_write+0x3a0/0x3a0 [ 12.222879][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.222882][ T84] ? lock_acquire+0x13c/0x160 [ 12.222886][ T84] console_emit_next_record+0x252/0x4f0 [ 12.222890][ T84] ? devkmsg_read+0x4e0/0x4e0 [ 12.222894][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.222897][ T84] ? lock_acquire+0x13c/0x160 [ 12.222900][ T84] console_flush_one_record+0x46f/0x710 [ 12.222904][ T84] ? console_emit_next_record+0x4f0/0x4f0 [ 12.222906][ T84] ? __lock_acquire+0x518/0xc20 [ 12.222911][ T84] console_unlock+0xee/0x1f0 [ 12.222914][ T84] ? console_flush_one_record+0x710/0x710 [ 12.222916][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.222918][ T84] ? lock_acquire+0xa0/0x160 [ 12.222922][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.222923][ T84] ? vprintk_emit+0x320/0x3e0 [ 12.222927][ T84] vprintk_emit+0x37c/0x3e0 [ 12.222930][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 12.222934][ T84] ? __lock_acquire+0x518/0xc20 [ 12.222937][ T84] _printk+0xc7/0x100 [ 12.222940][ T84] ? snapshot_read.cold+0x21/0x21 [ 12.222943][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.222946][ T84] ? __rwlock_init+0x150/0x150 [ 12.222950][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.222952][ T84] do_exit.cold+0x82/0x9c [ 12.222956][ T84] ? exit_notify+0x890/0x890 [ 12.222957][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 12.222960][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.222964][ T84] do_group_exit+0xb8/0x370 [ 12.222966][ T84] __x64_sys_exit_group+0x3c/0x50 [ 12.222968][ T84] x64_sys_call+0x1567/0x1570 [ 12.222970][ T84] do_syscall_64+0xff/0x530 [ 12.222973][ T84] ? exc_page_fault+0xee/0x100 [ 12.222977][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.222979][ T84] RIP: 0033:0x7ff24c98f1b8 [ 12.222982][ T84] Code: Unable to access opcode bytes at 0x7ff24c98f18e. [ 12.222983][ T84] RSP: 002b:00007ffd1b6e37a8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.222985][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff24c98f1b8 [ 12.222986][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.222987][ T84] RBP: 00007ffd1b6e3930 R08: 000055b0742eb6f8 R09: 0000000000000000 [ 12.222988][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.222989][ T84] R13: 00007ff24c1ed050 R14: 00007ff24cec0d9e R15: 000055b0742e28b0 [ 12.222996][ T84]