[ 14.970640][ T201] (udev-worker) (201) used greatest stack depth: 22696 bytes left [ 14.970659][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.970661][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: (udev-worker) [ 14.970663][ T201] preempt_count: 2, expected: 0 [ 14.970664][ T201] RCU nest depth: 0, expected: 0 [ 14.970665][ T201] locks held by (udev-worker)/201: 5, last CPU#3: [ 14.970667][ T201] #0: ffffffff946167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.970678][ T201] #1: ffffffff9477ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.970683][ T201] #2: ffffffff9477de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.970688][ T201] #3: ffffffff9469d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.970691][ T201] #4: ffffffff9469d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.970696][ T201] irq event stamp: 58390 [ 14.970697][ T201] hardirqs last enabled at (58389): [] __down_trylock_console_sem+0x86/0xa0 [ 14.970700][ T201] hardirqs last disabled at (58390): [] console_emit_next_record+0x3d4/0x4c0 [ 14.970702][ T201] softirqs last enabled at (58320): [] netlink_release+0x17b/0xcf0 [ 14.970706][ T201] softirqs last disabled at (58318): [] netlink_release+0xd2/0xcf0 [ 14.970709][ T201] Preemption disabled at: [ 14.970709][ T201] [<0000000000000000>] 0x0 [ 14.970716][ T201] CPU: 3 UID: 0 PID: 201 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.970719][ T201] Tainted: [W]=WARN [ 14.970721][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.970722][ T201] Call Trace: [ 14.970724][ T201] [ 14.970725][ T201] dump_stack_lvl+0x6f/0xa0 [ 14.970732][ T201] __might_resched.cold+0x1fe/0x2c1 [ 14.970736][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.970740][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 14.970745][ T201] __kmalloc_noprof+0x443/0x760 [ 14.970747][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 14.970753][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 14.970756][ T201] alloc_buf.isra.0+0x4b/0x260 [ 14.970760][ T201] put_chars+0x1e1/0x2f0 [ 14.970762][ T201] ? __send_to_port+0x420/0x420 [ 14.970764][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.970767][ T201] ? validate_chain+0x38b/0xc20 [ 14.970772][ T201] hvc_console_print+0x292/0x780 [ 14.970780][ T201] ? hvc_write+0x3a0/0x3a0 [ 14.970783][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.970785][ T201] ? lock_acquire+0x13c/0x160 [ 14.970789][ T201] console_emit_next_record+0x22f/0x4c0 [ 14.970793][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 14.970795][ T201] ? console_flush_one_record+0x106/0x710 [ 14.970798][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.970800][ T201] ? lock_acquire+0x13c/0x160 [ 14.970804][ T201] console_flush_one_record+0x46f/0x710 [ 14.970808][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 14.970810][ T201] ? __lock_acquire+0x518/0xc20 [ 14.970815][ T201] console_unlock+0xee/0x1f0 [ 14.970818][ T201] ? console_flush_one_record+0x710/0x710 [ 14.970820][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.970822][ T201] ? lock_acquire+0xe0/0x160 [ 14.970825][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.970827][ T201] ? vprintk_emit+0x320/0x3e0 [ 14.970830][ T201] vprintk_emit+0x37c/0x3e0 [ 14.970833][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 14.970836][ T201] ? __lock_acquire+0x518/0xc20 [ 14.970840][ T201] _printk+0xc7/0x100 [ 14.970844][ T201] ? snapshot_read.cold+0x21/0x21 [ 14.970846][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.970849][ T201] ? __rwlock_init+0x150/0x150 [ 14.970853][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.970856][ T201] do_exit.cold+0x82/0x9c [ 14.970860][ T201] ? exit_notify+0x890/0x890 [ 14.970861][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 14.970864][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.970867][ T201] do_group_exit+0xb8/0x370 [ 14.970870][ T201] __x64_sys_exit_group+0x3c/0x50 [ 14.970872][ T201] x64_sys_call+0x1567/0x1570 [ 14.970875][ T201] do_syscall_64+0xff/0x530 [ 14.970878][ T201] ? exc_page_fault+0xee/0x100 [ 14.970881][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.970883][ T201] RIP: 0033:0x7ffb7314d1b8 [ 14.970885][ T201] Code: Unable to access opcode bytes at 0x7ffb7314d18e. [ 14.970886][ T201] RSP: 002b:00007ffe1c8f94d8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.970889][ T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffb7314d1b8 [ 14.970890][ T201] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.970891][ T201] RBP: 00007ffe1c8f9660 R08: 00005618433c9e28 R09: 0000000000000000 [ 14.970892][ T201] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.970893][ T201] R13: 00007ffb729ab050 R14: 00007ffb7367ed9e R15: 00005618433b3350 [ 14.970900][ T201]