[ 19.209627][ T181] (udev-worker) (181) used greatest stack depth: 22696 bytes left [ 19.209652][ T181] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 19.209655][ T181] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 181, name: (udev-worker) [ 19.209657][ T181] preempt_count: 2, expected: 0 [ 19.209658][ T181] RCU nest depth: 0, expected: 0 [ 19.209660][ T181] locks held by (udev-worker)/181: 5, last CPU#0: [ 19.209663][ T181] #0: ffffffff9d0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 19.209677][ T181] #1: ffffffff9d199cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 19.209684][ T181] #2: ffffffff9d199d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 19.209691][ T181] #3: ffffffff9d089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 19.209697][ T181] #4: ffffffff9d089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 19.209703][ T181] irq event stamp: 336060 [ 19.209705][ T181] hardirqs last enabled at (336059): [] __down_trylock_console_sem+0x86/0xa0 [ 19.209709][ T181] hardirqs last disabled at (336060): [] console_emit_next_record+0x3f8/0x4f0 [ 19.209712][ T181] softirqs last enabled at (335994): [] netlink_release+0x17b/0xcf0 [ 19.209717][ T181] softirqs last disabled at (335992): [] netlink_release+0xd2/0xcf0 [ 19.209721][ T181] Preemption disabled at: [ 19.209722][ T181] [<0000000000000000>] 0x0 [ 19.209730][ T181] CPU: 0 UID: 0 PID: 181 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 19.209735][ T181] Tainted: [W]=WARN [ 19.209736][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.209738][ T181] Call Trace: [ 19.209741][ T181] [ 19.209743][ T181] dump_stack_lvl+0x6f/0xa0 [ 19.209751][ T181] __might_resched.cold+0x1fe/0x2c1 [ 19.209757][ T181] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 19.209763][ T181] ? __kmalloc_noprof+0xdb/0x760 [ 19.209771][ T181] __kmalloc_noprof+0x443/0x760 [ 19.209774][ T181] ? alloc_buf.isra.0+0x4b/0x260 [ 19.209783][ T181] ? do_raw_spin_unlock+0x59/0x250 [ 19.209787][ T181] alloc_buf.isra.0+0x4b/0x260 [ 19.209793][ T181] put_chars+0x1e1/0x2f0 [ 19.209801][ T181] ? __send_to_port+0x420/0x420 [ 19.209804][ T181] ? printk_get_next_message+0x2fe/0x7d0 [ 19.209810][ T181] ? rcu_read_lock_any_held+0x3c/0x90 [ 19.209815][ T181] ? validate_chain+0x38b/0xc20 [ 19.209823][ T181] hvc_console_print+0x292/0x780 [ 19.209827][ T181] ? __lock_acquire+0x518/0xc20 [ 19.209830][ T181] ? __lock_acquire+0x518/0xc20 [ 19.209838][ T181] ? hvc_write+0x3a0/0x3a0 [ 19.209844][ T181] ? rcu_is_watching+0x16/0xd0 [ 19.209847][ T181] ? lock_acquire+0x13c/0x160 [ 19.209854][ T181] console_emit_next_record+0x252/0x4f0 [ 19.209860][ T181] ? devkmsg_read+0x4e0/0x4e0 [ 19.209868][ T181] ? rcu_is_watching+0x16/0xd0 [ 19.209871][ T181] ? lock_acquire+0x13c/0x160 [ 19.209878][ T181] console_flush_one_record+0x46f/0x710 [ 19.209885][ T181] ? console_emit_next_record+0x4f0/0x4f0 [ 19.209888][ T181] ? __lock_acquire+0x518/0xc20 [ 19.209897][ T181] console_unlock+0xee/0x1f0 [ 19.209901][ T181] ? console_flush_one_record+0x710/0x710 [ 19.209904][ T181] ? rcu_is_watching+0x16/0xd0 [ 19.209906][ T181] ? lock_acquire+0x60/0x160 [ 19.209913][ T181] ? __down_trylock_console_sem+0x5e/0xa0 [ 19.209915][ T181] ? vprintk_emit+0x320/0x3e0 [ 19.209920][ T181] vprintk_emit+0x37c/0x3e0 [ 19.209925][ T181] ? wake_up_klogd_work_func+0x90/0x90 [ 19.209930][ T181] ? __lock_acquire+0x518/0xc20 [ 19.209936][ T181] _printk+0xc7/0x100 [ 19.209941][ T181] ? snapshot_read.cold+0x21/0x21 [ 19.209945][ T181] ? do_raw_spin_lock+0x131/0x280 [ 19.209949][ T181] ? __rwlock_init+0x150/0x150 [ 19.209955][ T181] ? do_raw_spin_lock+0x131/0x280 [ 19.209960][ T181] do_exit.cold+0x82/0x9c [ 19.209965][ T181] ? exit_notify+0x890/0x890 [ 19.209967][ T181] ? __lock_release.isra.0+0x69/0x1a0 [ 19.209972][ T181] ? rcu_is_watching+0x16/0xd0 [ 19.209978][ T181] do_group_exit+0xb8/0x370 [ 19.209983][ T181] __x64_sys_exit_group+0x3c/0x50 [ 19.209986][ T181] x64_sys_call+0x1567/0x1570 [ 19.209989][ T181] do_syscall_64+0xff/0x530 [ 19.209994][ T181] ? irq_exit_rcu+0x1a/0x30 [ 19.209998][ T181] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 19.210002][ T181] RIP: 0033:0x7f2ae27be1b8 [ 19.210005][ T181] Code: Unable to access opcode bytes at 0x7f2ae27be18e. [ 19.210007][ T181] RSP: 002b:00007ffdda9fa758 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 19.210010][ T181] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2ae27be1b8 [ 19.210012][ T181] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 19.210013][ T181] RBP: 00007ffdda9fa8e0 R08: 00005596ff116518 R09: 0000000000000000 [ 19.210015][ T181] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 19.210016][ T181] R13: 00007f2ae201c050 R14: 00007f2ae2cefd9e R15: 00005596ff106e90 [ 19.210029][ T181]