[ 14.156675][ T187] (udev-worker) (187) used greatest stack depth: 22696 bytes left [ 14.156695][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.156697][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: (udev-worker) [ 14.156699][ T187] preempt_count: 2, expected: 0 [ 14.156700][ T187] RCU nest depth: 0, expected: 0 [ 14.156701][ T187] locks held by (udev-worker)/187: 5, last CPU#1: [ 14.156703][ T187] #0: ffffffff932027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.156714][ T187] #1: ffffffff93399cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.156719][ T187] #2: ffffffff93399d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.156724][ T187] #3: ffffffff93289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.156728][ T187] #4: ffffffff93289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.156732][ T187] irq event stamp: 108386 [ 14.156733][ T187] hardirqs last enabled at (108385): [] __down_trylock_console_sem+0x86/0xa0 [ 14.156736][ T187] hardirqs last disabled at (108386): [] console_emit_next_record+0x3f8/0x4f0 [ 14.156739][ T187] softirqs last enabled at (108322): [] netlink_release+0x17b/0xcf0 [ 14.156743][ T187] softirqs last disabled at (108320): [] netlink_release+0xd2/0xcf0 [ 14.156746][ T187] Preemption disabled at: [ 14.156746][ T187] [<0000000000000000>] 0x0 [ 14.156753][ T187] CPU: 1 UID: 0 PID: 187 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.156757][ T187] Tainted: [W]=WARN [ 14.156758][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.156760][ T187] Call Trace: [ 14.156761][ T187] [ 14.156763][ T187] dump_stack_lvl+0x6f/0xa0 [ 14.156769][ T187] __might_resched.cold+0x1fe/0x2c1 [ 14.156774][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.156779][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 14.156785][ T187] __kmalloc_noprof+0x443/0x760 [ 14.156787][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 14.156794][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 14.156797][ T187] alloc_buf.isra.0+0x4b/0x260 [ 14.156801][ T187] put_chars+0x1e1/0x2f0 [ 14.156804][ T187] ? __send_to_port+0x420/0x420 [ 14.156806][ T187] ? printk_get_next_message+0x2fe/0x7d0 [ 14.156810][ T187] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.156813][ T187] ? validate_chain+0x38b/0xc20 [ 14.156818][ T187] hvc_console_print+0x292/0x780 [ 14.156821][ T187] ? __lock_acquire+0x518/0xc20 [ 14.156823][ T187] ? __lock_acquire+0x518/0xc20 [ 14.156828][ T187] ? hvc_write+0x3a0/0x3a0 [ 14.156831][ T187] ? rcu_is_watching+0x16/0xd0 [ 14.156833][ T187] ? lock_acquire+0x13c/0x160 [ 14.156838][ T187] console_emit_next_record+0x252/0x4f0 [ 14.156842][ T187] ? devkmsg_read+0x4e0/0x4e0 [ 14.156846][ T187] ? rcu_is_watching+0x16/0xd0 [ 14.156848][ T187] ? lock_acquire+0x13c/0x160 [ 14.156852][ T187] console_flush_one_record+0x46f/0x710 [ 14.156857][ T187] ? console_emit_next_record+0x4f0/0x4f0 [ 14.156859][ T187] ? __lock_acquire+0x518/0xc20 [ 14.156864][ T187] console_unlock+0xee/0x1f0 [ 14.156867][ T187] ? console_flush_one_record+0x710/0x710 [ 14.156869][ T187] ? rcu_is_watching+0x16/0xd0 [ 14.156871][ T187] ? lock_acquire+0x60/0x160 [ 14.156875][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.156877][ T187] ? vprintk_emit+0x320/0x3e0 [ 14.156880][ T187] vprintk_emit+0x37c/0x3e0 [ 14.156883][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 14.156886][ T187] ? __lock_acquire+0x518/0xc20 [ 14.156890][ T187] _printk+0xc7/0x100 [ 14.156893][ T187] ? snapshot_read.cold+0x21/0x21 [ 14.156896][ T187] ? do_raw_spin_lock+0x131/0x280 [ 14.156899][ T187] ? __rwlock_init+0x150/0x150 [ 14.156903][ T187] ? do_raw_spin_lock+0x131/0x280 [ 14.156906][ T187] do_exit.cold+0x82/0x9c [ 14.156910][ T187] ? exit_notify+0x890/0x890 [ 14.156912][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 14.156915][ T187] ? rcu_is_watching+0x16/0xd0 [ 14.156918][ T187] do_group_exit+0xb8/0x370 [ 14.156921][ T187] __x64_sys_exit_group+0x3c/0x50 [ 14.156923][ T187] x64_sys_call+0x1567/0x1570 [ 14.156925][ T187] do_syscall_64+0xff/0x530 [ 14.156930][ T187] ? irq_exit_rcu+0x1a/0x30 [ 14.156933][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.156935][ T187] RIP: 0033:0x7fa7b9b271b8 [ 14.156938][ T187] Code: Unable to access opcode bytes at 0x7fa7b9b2718e. [ 14.156939][ T187] RSP: 002b:00007fffc5c4e5f8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.156941][ T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa7b9b271b8 [ 14.156943][ T187] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.156943][ T187] RBP: 00007fffc5c4e780 R08: 000055db3b627d28 R09: 0000000000000000 [ 14.156944][ T187] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.156945][ T187] R13: 00007fa7b9385050 R14: 00007fa7ba058d9e R15: 000055db3b648380 [ 14.156952][ T187]