[ 19.012605][ T182] (udev-worker) (182) used greatest stack depth: 22696 bytes left [ 19.012632][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 19.012635][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: (udev-worker) [ 19.012636][ T182] preempt_count: 2, expected: 0 [ 19.012637][ T182] RCU nest depth: 0, expected: 0 [ 19.012638][ T182] locks held by (udev-worker)/182: 5, last CPU#2: [ 19.012640][ T182] #0: ffffffffa54027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 19.012652][ T182] #1: ffffffffa5599cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 19.012658][ T182] #2: ffffffffa5599d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 19.012662][ T182] #3: ffffffffa5489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 19.012666][ T182] #4: ffffffffa5489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 19.012670][ T182] irq event stamp: 312750 [ 19.012671][ T182] hardirqs last enabled at (312749): [] __down_trylock_console_sem+0x86/0xa0 [ 19.012674][ T182] hardirqs last disabled at (312750): [] console_emit_next_record+0x3f8/0x4f0 [ 19.012676][ T182] softirqs last enabled at (312686): [] netlink_release+0x17b/0xcf0 [ 19.012680][ T182] softirqs last disabled at (312684): [] netlink_release+0xd2/0xcf0 [ 19.012683][ T182] Preemption disabled at: [ 19.012684][ T182] [<0000000000000000>] 0x0 [ 19.012691][ T182] CPU: 2 UID: 0 PID: 182 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 19.012694][ T182] Tainted: [W]=WARN [ 19.012695][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.012697][ T182] Call Trace: [ 19.012699][ T182] [ 19.012700][ T182] dump_stack_lvl+0x6f/0xa0 [ 19.012707][ T182] __might_resched.cold+0x1fe/0x2c1 [ 19.012711][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 19.012715][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 19.012721][ T182] __kmalloc_noprof+0x443/0x760 [ 19.012724][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 19.012730][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 19.012733][ T182] alloc_buf.isra.0+0x4b/0x260 [ 19.012736][ T182] put_chars+0x1e1/0x2f0 [ 19.012739][ T182] ? __send_to_port+0x420/0x420 [ 19.012741][ T182] ? printk_get_next_message+0x2fe/0x7d0 [ 19.012745][ T182] ? rcu_read_lock_any_held+0x3c/0x90 [ 19.012748][ T182] ? validate_chain+0x38b/0xc20 [ 19.012753][ T182] hvc_console_print+0x292/0x780 [ 19.012756][ T182] ? __lock_acquire+0x518/0xc20 [ 19.012758][ T182] ? __lock_acquire+0x518/0xc20 [ 19.012762][ T182] ? hvc_write+0x3a0/0x3a0 [ 19.012766][ T182] ? rcu_is_watching+0x16/0xd0 [ 19.012768][ T182] ? lock_acquire+0x13c/0x160 [ 19.012772][ T182] console_emit_next_record+0x252/0x4f0 [ 19.012776][ T182] ? devkmsg_read+0x4e0/0x4e0 [ 19.012780][ T182] ? rcu_is_watching+0x16/0xd0 [ 19.012782][ T182] ? lock_acquire+0x13c/0x160 [ 19.012786][ T182] console_flush_one_record+0x46f/0x710 [ 19.012790][ T182] ? console_emit_next_record+0x4f0/0x4f0 [ 19.012792][ T182] ? __lock_acquire+0x518/0xc20 [ 19.012797][ T182] console_unlock+0xee/0x1f0 [ 19.012800][ T182] ? console_flush_one_record+0x710/0x710 [ 19.012802][ T182] ? rcu_is_watching+0x16/0xd0 [ 19.012804][ T182] ? lock_acquire+0x60/0x160 [ 19.012808][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 19.012810][ T182] ? vprintk_emit+0x320/0x3e0 [ 19.012812][ T182] vprintk_emit+0x37c/0x3e0 [ 19.012815][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 19.012818][ T182] ? __lock_acquire+0x518/0xc20 [ 19.012822][ T182] _printk+0xc7/0x100 [ 19.012826][ T182] ? snapshot_read.cold+0x21/0x21 [ 19.012828][ T182] ? do_raw_spin_lock+0x131/0x280 [ 19.012831][ T182] ? __rwlock_init+0x150/0x150 [ 19.012835][ T182] ? do_raw_spin_lock+0x131/0x280 [ 19.012838][ T182] do_exit.cold+0x82/0x9c [ 19.012842][ T182] ? exit_notify+0x890/0x890 [ 19.012843][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 19.012846][ T182] ? rcu_is_watching+0x16/0xd0 [ 19.012850][ T182] do_group_exit+0xb8/0x370 [ 19.012852][ T182] __x64_sys_exit_group+0x3c/0x50 [ 19.012854][ T182] x64_sys_call+0x1567/0x1570 [ 19.012857][ T182] do_syscall_64+0xff/0x530 [ 19.012860][ T182] ? exc_page_fault+0xee/0x100 [ 19.012863][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 19.012866][ T182] RIP: 0033:0x7f2f69c9f1b8 [ 19.012868][ T182] Code: Unable to access opcode bytes at 0x7f2f69c9f18e. [ 19.012869][ T182] RSP: 002b:00007fffc755e588 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 19.012872][ T182] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f69c9f1b8 [ 19.012873][ T182] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 19.012874][ T182] RBP: 00007fffc755e710 R08: 000055f7b2d8cf38 R09: 0000000000000000 [ 19.012875][ T182] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 19.012875][ T182] R13: 00007f2f694fd050 R14: 00007f2f6a1d0d9e R15: 000055f7b2d4e3d0 [ 19.012882][ T182]