[ 12.109504][ T88] (udev-worker) (88) used greatest stack depth: 24320 bytes left [ 12.109521][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.109523][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 12.109525][ T88] preempt_count: 2, expected: 0 [ 12.109525][ T88] RCU nest depth: 0, expected: 0 [ 12.109526][ T88] locks held by (udev-worker)/88: 5, last CPU#0: [ 12.109528][ T88] #0: ffffffffb64027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.109540][ T88] #1: ffffffffb6599dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.109545][ T88] #2: ffffffffb6599e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.109549][ T88] #3: ffffffffb6489760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.109553][ T88] #4: ffffffffb6489660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.109557][ T88] irq event stamp: 438348 [ 12.109558][ T88] hardirqs last enabled at (438347): [] __down_trylock_console_sem+0x86/0xa0 [ 12.109560][ T88] hardirqs last disabled at (438348): [] console_emit_next_record+0x3f8/0x4f0 [ 12.109562][ T88] softirqs last enabled at (438282): [] handle_softirqs+0x67c/0x900 [ 12.109564][ T88] softirqs last disabled at (436663): [] do_softirq+0xac/0xe0 [ 12.109567][ T88] Preemption disabled at: [ 12.109567][ T88] [<0000000000000000>] 0x0 [ 12.109574][ T88] CPU: 0 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.109577][ T88] Tainted: [W]=WARN [ 12.109578][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.109579][ T88] Call Trace: [ 12.109581][ T88] [ 12.109582][ T88] dump_stack_lvl+0x6f/0xa0 [ 12.109588][ T88] __might_resched.cold+0x1fe/0x2c1 [ 12.109593][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.109597][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 12.109602][ T88] __kmalloc_noprof+0x443/0x760 [ 12.109604][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 12.109611][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 12.109613][ T88] alloc_buf.isra.0+0x4b/0x260 [ 12.109616][ T88] put_chars+0x1e1/0x2f0 [ 12.109620][ T88] ? __send_to_port+0x420/0x420 [ 12.109622][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 12.109625][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.109628][ T88] ? validate_chain+0x38b/0xc20 [ 12.109632][ T88] hvc_console_print+0x292/0x780 [ 12.109635][ T88] ? __lock_acquire+0x518/0xc20 [ 12.109637][ T88] ? __lock_acquire+0x518/0xc20 [ 12.109641][ T88] ? hvc_write+0x3a0/0x3a0 [ 12.109644][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.109648][ T88] ? lock_acquire+0x13c/0x160 [ 12.109651][ T88] console_emit_next_record+0x252/0x4f0 [ 12.109655][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 12.109659][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.109662][ T88] ? lock_acquire+0x13c/0x160 [ 12.109665][ T88] console_flush_one_record+0x46f/0x710 [ 12.109669][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 12.109671][ T88] ? __lock_acquire+0x518/0xc20 [ 12.109676][ T88] console_unlock+0xee/0x1f0 [ 12.109679][ T88] ? console_flush_one_record+0x710/0x710 [ 12.109680][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.109683][ T88] ? lock_acquire+0xa0/0x160 [ 12.109686][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.109688][ T88] ? vprintk_emit+0x320/0x3e0 [ 12.109691][ T88] vprintk_emit+0x37c/0x3e0 [ 12.109695][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 12.109698][ T88] ? __lock_acquire+0x518/0xc20 [ 12.109701][ T88] _printk+0xc7/0x100 [ 12.109705][ T88] ? snapshot_read.cold+0x21/0x21 [ 12.109707][ T88] ? do_raw_spin_lock+0x131/0x280 [ 12.109710][ T88] ? __rwlock_init+0x150/0x150 [ 12.109713][ T88] ? do_raw_spin_lock+0x131/0x280 [ 12.109716][ T88] do_exit.cold+0x82/0x9c [ 12.109720][ T88] ? exit_notify+0x890/0x890 [ 12.109721][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 12.109724][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.109728][ T88] do_group_exit+0xb8/0x370 [ 12.109730][ T88] __x64_sys_exit_group+0x3c/0x50 [ 12.109732][ T88] x64_sys_call+0x1567/0x1570 [ 12.109734][ T88] do_syscall_64+0xff/0x530 [ 12.109737][ T88] ? irq_exit_rcu+0x1a/0x30 [ 12.109740][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.109742][ T88] RIP: 0033:0x7f1020cd51b8 [ 12.109744][ T88] Code: Unable to access opcode bytes at 0x7f1020cd518e. [ 12.109745][ T88] RSP: 002b:00007ffc26556458 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.109748][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1020cd51b8 [ 12.109749][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.109750][ T88] RBP: 00007ffc265565e0 R08: 0000558d35ecf6f8 R09: 0000000000000000 [ 12.109751][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.109751][ T88] R13: 00007f1020533050 R14: 00007f1021206d9e R15: 0000558d35ec6850 [ 12.109758][ T88]