[ 15.315149][ T199] (udev-worker) (199) used greatest stack depth: 22696 bytes left [ 15.315170][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.315172][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: (udev-worker) [ 15.315174][ T199] preempt_count: 2, expected: 0 [ 15.315175][ T199] RCU nest depth: 0, expected: 0 [ 15.315176][ T199] locks held by (udev-worker)/199: 5, last CPU#0: [ 15.315178][ T199] #0: ffffffffb0e167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.315190][ T199] #1: ffffffffb0f7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.315195][ T199] #2: ffffffffb0f7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.315199][ T199] #3: ffffffffb0e9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.315203][ T199] #4: ffffffffb0e9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 15.315207][ T199] irq event stamp: 61164 [ 15.315208][ T199] hardirqs last enabled at (61163): [] __down_trylock_console_sem+0x86/0xa0 [ 15.315212][ T199] hardirqs last disabled at (61164): [] console_emit_next_record+0x3d4/0x4c0 [ 15.315214][ T199] softirqs last enabled at (61094): [] netlink_release+0x17b/0xcf0 [ 15.315218][ T199] softirqs last disabled at (61092): [] netlink_release+0xd2/0xcf0 [ 15.315221][ T199] Preemption disabled at: [ 15.315221][ T199] [<0000000000000000>] 0x0 [ 15.315229][ T199] CPU: 0 UID: 0 PID: 199 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.315233][ T199] Tainted: [W]=WARN [ 15.315234][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.315235][ T199] Call Trace: [ 15.315237][ T199] [ 15.315238][ T199] dump_stack_lvl+0x6f/0xa0 [ 15.315245][ T199] __might_resched.cold+0x1fe/0x2c1 [ 15.315249][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.315254][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 15.315258][ T199] __kmalloc_noprof+0x443/0x760 [ 15.315260][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 15.315267][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 15.315269][ T199] alloc_buf.isra.0+0x4b/0x260 [ 15.315273][ T199] put_chars+0x1e1/0x2f0 [ 15.315275][ T199] ? __send_to_port+0x420/0x420 [ 15.315277][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 15.315280][ T199] ? validate_chain+0x38b/0xc20 [ 15.315286][ T199] hvc_console_print+0x292/0x780 [ 15.315294][ T199] ? hvc_write+0x3a0/0x3a0 [ 15.315296][ T199] ? rcu_is_watching+0x16/0xd0 [ 15.315298][ T199] ? lock_acquire+0x13c/0x160 [ 15.315303][ T199] console_emit_next_record+0x22f/0x4c0 [ 15.315307][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 15.315309][ T199] ? console_flush_one_record+0x106/0x710 [ 15.315312][ T199] ? rcu_is_watching+0x16/0xd0 [ 15.315313][ T199] ? lock_acquire+0x13c/0x160 [ 15.315317][ T199] console_flush_one_record+0x46f/0x710 [ 15.315322][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 15.315324][ T199] ? __lock_acquire+0x518/0xc20 [ 15.315329][ T199] console_unlock+0xee/0x1f0 [ 15.315332][ T199] ? console_flush_one_record+0x710/0x710 [ 15.315334][ T199] ? rcu_is_watching+0x16/0xd0 [ 15.315336][ T199] ? lock_acquire+0xe0/0x160 [ 15.315340][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.315341][ T199] ? vprintk_emit+0x320/0x3e0 [ 15.315344][ T199] vprintk_emit+0x37c/0x3e0 [ 15.315347][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 15.315350][ T199] ? __lock_acquire+0x518/0xc20 [ 15.315354][ T199] _printk+0xc7/0x100 [ 15.315358][ T199] ? snapshot_read.cold+0x21/0x21 [ 15.315361][ T199] ? do_raw_spin_lock+0x131/0x280 [ 15.315363][ T199] ? __rwlock_init+0x150/0x150 [ 15.315367][ T199] ? do_raw_spin_lock+0x131/0x280 [ 15.315370][ T199] do_exit.cold+0x82/0x9c [ 15.315374][ T199] ? exit_notify+0x890/0x890 [ 15.315375][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 15.315378][ T199] ? rcu_is_watching+0x16/0xd0 [ 15.315381][ T199] do_group_exit+0xb8/0x370 [ 15.315384][ T199] __x64_sys_exit_group+0x3c/0x50 [ 15.315386][ T199] x64_sys_call+0x1567/0x1570 [ 15.315389][ T199] do_syscall_64+0xff/0x530 [ 15.315393][ T199] ? exc_page_fault+0xee/0x100 [ 15.315396][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.315398][ T199] RIP: 0033:0x7fea0bc111b8 [ 15.315400][ T199] Code: Unable to access opcode bytes at 0x7fea0bc1118e. [ 15.315401][ T199] RSP: 002b:00007ffe7e4ed228 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.315404][ T199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fea0bc111b8 [ 15.315406][ T199] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.315406][ T199] RBP: 00007ffe7e4ed3b0 R08: 0000563a876b9e68 R09: 0000000000000000 [ 15.315407][ T199] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.315408][ T199] R13: 00007fea0b46f050 R14: 00007fea0c142d9e R15: 0000563a875289a0 [ 15.315415][ T199]