[ 12.366546][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 12.366566][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.366568][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 12.366570][ T84] preempt_count: 2, expected: 0 [ 12.366571][ T84] RCU nest depth: 0, expected: 0 [ 12.366572][ T84] locks held by (udev-worker)/84: 5, last CPU#0: [ 12.366574][ T84] #0: ffffffff9a0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.366585][ T84] #1: ffffffff9a199dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.366591][ T84] #2: ffffffff9a199e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.366595][ T84] #3: ffffffff9a089760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.366599][ T84] #4: ffffffff9a089660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.366603][ T84] irq event stamp: 365770 [ 12.366604][ T84] hardirqs last enabled at (365769): [] __down_trylock_console_sem+0x86/0xa0 [ 12.366607][ T84] hardirqs last disabled at (365770): [] console_emit_next_record+0x3f8/0x4f0 [ 12.366609][ T84] softirqs last enabled at (365706): [] netlink_release+0x17b/0xcf0 [ 12.366614][ T84] softirqs last disabled at (365704): [] netlink_release+0xd2/0xcf0 [ 12.366616][ T84] Preemption disabled at: [ 12.366617][ T84] [<0000000000000000>] 0x0 [ 12.366624][ T84] CPU: 0 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.366627][ T84] Tainted: [W]=WARN [ 12.366628][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.366630][ T84] Call Trace: [ 12.366631][ T84] [ 12.366633][ T84] dump_stack_lvl+0x6f/0xa0 [ 12.366639][ T84] __might_resched.cold+0x1fe/0x2c1 [ 12.366644][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.366649][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 12.366654][ T84] __kmalloc_noprof+0x443/0x760 [ 12.366657][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 12.366664][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 12.366666][ T84] alloc_buf.isra.0+0x4b/0x260 [ 12.366673][ T84] put_chars+0x1e1/0x2f0 [ 12.366677][ T84] ? __send_to_port+0x420/0x420 [ 12.366679][ T84] ? printk_get_next_message+0x2fe/0x7d0 [ 12.366683][ T84] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.366686][ T84] ? validate_chain+0x38b/0xc20 [ 12.366690][ T84] hvc_console_print+0x292/0x780 [ 12.366694][ T84] ? __lock_acquire+0x518/0xc20 [ 12.366696][ T84] ? __lock_acquire+0x518/0xc20 [ 12.366701][ T84] ? hvc_write+0x3a0/0x3a0 [ 12.366705][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.366708][ T84] ? lock_acquire+0x13c/0x160 [ 12.366713][ T84] console_emit_next_record+0x252/0x4f0 [ 12.366717][ T84] ? devkmsg_read+0x4e0/0x4e0 [ 12.366722][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.366724][ T84] ? lock_acquire+0x13c/0x160 [ 12.366728][ T84] console_flush_one_record+0x46f/0x710 [ 12.366733][ T84] ? console_emit_next_record+0x4f0/0x4f0 [ 12.366734][ T84] ? __lock_acquire+0x518/0xc20 [ 12.366740][ T84] console_unlock+0xee/0x1f0 [ 12.366743][ T84] ? console_flush_one_record+0x710/0x710 [ 12.366745][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.366747][ T84] ? lock_acquire+0xa0/0x160 [ 12.366751][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.366753][ T84] ? vprintk_emit+0x320/0x3e0 [ 12.366756][ T84] vprintk_emit+0x37c/0x3e0 [ 12.366760][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 12.366764][ T84] ? __lock_acquire+0x518/0xc20 [ 12.366768][ T84] _printk+0xc7/0x100 [ 12.366772][ T84] ? snapshot_read.cold+0x21/0x21 [ 12.366775][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.366777][ T84] ? __rwlock_init+0x150/0x150 [ 12.366782][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.366784][ T84] do_exit.cold+0x82/0x9c [ 12.366788][ T84] ? exit_notify+0x890/0x890 [ 12.366790][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 12.366792][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.366797][ T84] do_group_exit+0xb8/0x370 [ 12.366800][ T84] __x64_sys_exit_group+0x3c/0x50 [ 12.366802][ T84] x64_sys_call+0x1567/0x1570 [ 12.366804][ T84] do_syscall_64+0xff/0x530 [ 12.366807][ T84] ? exc_page_fault+0xee/0x100 [ 12.366811][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.366813][ T84] RIP: 0033:0x7ff7ad53c1b8 [ 12.366815][ T84] Code: Unable to access opcode bytes at 0x7ff7ad53c18e. [ 12.366817][ T84] RSP: 002b:00007ffdc5401138 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.366819][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff7ad53c1b8 [ 12.366821][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.366822][ T84] RBP: 00007ffdc54012c0 R08: 000055862406a228 R09: 0000000000000000 [ 12.366822][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.366823][ T84] R13: 00007ff7acd9a050 R14: 00007ff7ada6dd9e R15: 000055862406c4c0 [ 12.366831][ T84]