[ 14.351213][ T86] (udev-worker) (86) used greatest stack depth: 22696 bytes left [ 14.351234][ T86] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.351236][ T86] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 86, name: (udev-worker) [ 14.351238][ T86] preempt_count: 2, expected: 0 [ 14.351239][ T86] RCU nest depth: 0, expected: 0 [ 14.351240][ T86] locks held by (udev-worker)/86: 5, last CPU#2: [ 14.351242][ T86] #0: ffffffffa62027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.351255][ T86] #1: ffffffffa6399cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.351261][ T86] #2: ffffffffa6399d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.351265][ T86] #3: ffffffffa6289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.351269][ T86] #4: ffffffffa6289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.351273][ T86] irq event stamp: 380270 [ 14.351273][ T86] hardirqs last enabled at (380269): [] __down_trylock_console_sem+0x86/0xa0 [ 14.351276][ T86] hardirqs last disabled at (380270): [] console_emit_next_record+0x3f8/0x4f0 [ 14.351278][ T86] softirqs last enabled at (380206): [] netlink_release+0x17b/0xcf0 [ 14.351282][ T86] softirqs last disabled at (380204): [] netlink_release+0xd2/0xcf0 [ 14.351285][ T86] Preemption disabled at: [ 14.351285][ T86] [<0000000000000000>] 0x0 [ 14.351292][ T86] CPU: 2 UID: 0 PID: 86 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.351296][ T86] Tainted: [W]=WARN [ 14.351297][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.351299][ T86] Call Trace: [ 14.351300][ T86] [ 14.351302][ T86] dump_stack_lvl+0x6f/0xa0 [ 14.351308][ T86] __might_resched.cold+0x1fe/0x2c1 [ 14.351313][ T86] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.351317][ T86] ? __kmalloc_noprof+0xdb/0x760 [ 14.351322][ T86] __kmalloc_noprof+0x443/0x760 [ 14.351324][ T86] ? alloc_buf.isra.0+0x4b/0x260 [ 14.351330][ T86] ? do_raw_spin_unlock+0x59/0x250 [ 14.351333][ T86] alloc_buf.isra.0+0x4b/0x260 [ 14.351336][ T86] put_chars+0x1e1/0x2f0 [ 14.351339][ T86] ? __send_to_port+0x420/0x420 [ 14.351340][ T86] ? printk_get_next_message+0x2fe/0x7d0 [ 14.351344][ T86] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.351347][ T86] ? validate_chain+0x38b/0xc20 [ 14.351351][ T86] hvc_console_print+0x292/0x780 [ 14.351354][ T86] ? __lock_acquire+0x518/0xc20 [ 14.351355][ T86] ? __lock_acquire+0x518/0xc20 [ 14.351359][ T86] ? hvc_write+0x3a0/0x3a0 [ 14.351363][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.351366][ T86] ? lock_acquire+0x13c/0x160 [ 14.351370][ T86] console_emit_next_record+0x252/0x4f0 [ 14.351373][ T86] ? devkmsg_read+0x4e0/0x4e0 [ 14.351378][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.351380][ T86] ? lock_acquire+0x13c/0x160 [ 14.351384][ T86] console_flush_one_record+0x46f/0x710 [ 14.351388][ T86] ? console_emit_next_record+0x4f0/0x4f0 [ 14.351389][ T86] ? __lock_acquire+0x518/0xc20 [ 14.351395][ T86] console_unlock+0xee/0x1f0 [ 14.351397][ T86] ? console_flush_one_record+0x710/0x710 [ 14.351399][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.351401][ T86] ? lock_acquire+0x60/0x160 [ 14.351404][ T86] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.351406][ T86] ? vprintk_emit+0x320/0x3e0 [ 14.351409][ T86] vprintk_emit+0x37c/0x3e0 [ 14.351412][ T86] ? wake_up_klogd_work_func+0x90/0x90 [ 14.351416][ T86] ? __lock_acquire+0x518/0xc20 [ 14.351419][ T86] _printk+0xc7/0x100 [ 14.351423][ T86] ? snapshot_read.cold+0x21/0x21 [ 14.351426][ T86] ? do_raw_spin_lock+0x131/0x280 [ 14.351429][ T86] ? __rwlock_init+0x150/0x150 [ 14.351432][ T86] ? do_raw_spin_lock+0x131/0x280 [ 14.351435][ T86] do_exit.cold+0x82/0x9c [ 14.351439][ T86] ? exit_notify+0x890/0x890 [ 14.351440][ T86] ? __lock_release.isra.0+0x69/0x1a0 [ 14.351443][ T86] ? rcu_is_watching+0x16/0xd0 [ 14.351447][ T86] do_group_exit+0xb8/0x370 [ 14.351451][ T86] __x64_sys_exit_group+0x3c/0x50 [ 14.351453][ T86] x64_sys_call+0x1567/0x1570 [ 14.351455][ T86] do_syscall_64+0xff/0x530 [ 14.351459][ T86] ? exc_page_fault+0xee/0x100 [ 14.351462][ T86] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.351464][ T86] RIP: 0033:0x7fb0a7ab51b8 [ 14.351467][ T86] Code: Unable to access opcode bytes at 0x7fb0a7ab518e. [ 14.351468][ T86] RSP: 002b:00007ffc1484a3d8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.351470][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0a7ab51b8 [ 14.351472][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.351473][ T86] RBP: 00007ffc1484a560 R08: 000055c1da89d3e8 R09: 0000000000000000 [ 14.351473][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.351474][ T86] R13: 00007fb0a7313050 R14: 00007fb0a7fe6d9e R15: 000055c1da73d3f0 [ 14.351482][ T86]