[ 13.652709][ T87] (udev-worker) (87) used greatest stack depth: 22696 bytes left [ 13.652726][ T87] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.652728][ T87] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 87, name: (udev-worker) [ 13.652730][ T87] preempt_count: 2, expected: 0 [ 13.652731][ T87] RCU nest depth: 0, expected: 0 [ 13.652732][ T87] locks held by (udev-worker)/87: 5, last CPU#2: [ 13.652734][ T87] #0: ffffffffb08027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.652746][ T87] #1: ffffffffb0999cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.652752][ T87] #2: ffffffffb0999d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.652756][ T87] #3: ffffffffb0889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.652759][ T87] #4: ffffffffb0889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 13.652763][ T87] irq event stamp: 394984 [ 13.652764][ T87] hardirqs last enabled at (394983): [] __down_trylock_console_sem+0x86/0xa0 [ 13.652766][ T87] hardirqs last disabled at (394984): [] console_emit_next_record+0x3f8/0x4f0 [ 13.652767][ T87] softirqs last enabled at (394920): [] netlink_release+0x17b/0xcf0 [ 13.652772][ T87] softirqs last disabled at (394918): [] netlink_release+0xd2/0xcf0 [ 13.652774][ T87] Preemption disabled at: [ 13.652775][ T87] [<0000000000000000>] 0x0 [ 13.652782][ T87] CPU: 2 UID: 0 PID: 87 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.652785][ T87] Tainted: [W]=WARN [ 13.652786][ T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.652788][ T87] Call Trace: [ 13.652790][ T87] [ 13.652791][ T87] dump_stack_lvl+0x6f/0xa0 [ 13.652798][ T87] __might_resched.cold+0x1fe/0x2c1 [ 13.652802][ T87] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.652806][ T87] ? __kmalloc_noprof+0xdb/0x760 [ 13.652811][ T87] __kmalloc_noprof+0x443/0x760 [ 13.652813][ T87] ? alloc_buf.isra.0+0x4b/0x260 [ 13.652819][ T87] ? do_raw_spin_unlock+0x59/0x250 [ 13.652821][ T87] alloc_buf.isra.0+0x4b/0x260 [ 13.652824][ T87] put_chars+0x1e1/0x2f0 [ 13.652827][ T87] ? __send_to_port+0x420/0x420 [ 13.652829][ T87] ? printk_get_next_message+0x2fe/0x7d0 [ 13.652832][ T87] ? rcu_read_lock_any_held+0x3c/0x90 [ 13.652835][ T87] ? validate_chain+0x38b/0xc20 [ 13.652839][ T87] hvc_console_print+0x292/0x780 [ 13.652842][ T87] ? __lock_acquire+0x518/0xc20 [ 13.652843][ T87] ? __lock_acquire+0x518/0xc20 [ 13.652847][ T87] ? hvc_write+0x3a0/0x3a0 [ 13.652850][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.652853][ T87] ? lock_acquire+0x13c/0x160 [ 13.652857][ T87] console_emit_next_record+0x252/0x4f0 [ 13.652860][ T87] ? devkmsg_read+0x4e0/0x4e0 [ 13.652864][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.652866][ T87] ? lock_acquire+0x13c/0x160 [ 13.652870][ T87] console_flush_one_record+0x46f/0x710 [ 13.652874][ T87] ? console_emit_next_record+0x4f0/0x4f0 [ 13.652875][ T87] ? __lock_acquire+0x518/0xc20 [ 13.652880][ T87] console_unlock+0xee/0x1f0 [ 13.652883][ T87] ? console_flush_one_record+0x710/0x710 [ 13.652884][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.652886][ T87] ? lock_acquire+0x60/0x160 [ 13.652890][ T87] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.652891][ T87] ? vprintk_emit+0x320/0x3e0 [ 13.652894][ T87] vprintk_emit+0x37c/0x3e0 [ 13.652897][ T87] ? wake_up_klogd_work_func+0x90/0x90 [ 13.652901][ T87] ? __lock_acquire+0x518/0xc20 [ 13.652904][ T87] _printk+0xc7/0x100 [ 13.652908][ T87] ? snapshot_read.cold+0x21/0x21 [ 13.652910][ T87] ? do_raw_spin_lock+0x131/0x280 [ 13.652913][ T87] ? __rwlock_init+0x150/0x150 [ 13.652916][ T87] ? do_raw_spin_lock+0x131/0x280 [ 13.652918][ T87] do_exit.cold+0x82/0x9c [ 13.652922][ T87] ? exit_notify+0x890/0x890 [ 13.652924][ T87] ? __lock_release.isra.0+0x69/0x1a0 [ 13.652926][ T87] ? rcu_is_watching+0x16/0xd0 [ 13.652930][ T87] do_group_exit+0xb8/0x370 [ 13.652934][ T87] __x64_sys_exit_group+0x3c/0x50 [ 13.652936][ T87] x64_sys_call+0x1567/0x1570 [ 13.652938][ T87] do_syscall_64+0xff/0x530 [ 13.652942][ T87] ? exc_page_fault+0xee/0x100 [ 13.652945][ T87] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.652947][ T87] RIP: 0033:0x7ffa36a701b8 [ 13.652949][ T87] Code: Unable to access opcode bytes at 0x7ffa36a7018e. [ 13.652951][ T87] RSP: 002b:00007ffd4201a558 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.652953][ T87] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffa36a701b8 [ 13.652954][ T87] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.652955][ T87] RBP: 00007ffd4201a6e0 R08: 00005569d10d82c8 R09: 0000000000000000 [ 13.652956][ T87] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.652957][ T87] R13: 00007ffa362ce050 R14: 00007ffa36fa1d9e R15: 00005569d10cb410 [ 13.652963][ T87]