[ 17.342557][ T201] (udev-worker) (201) used greatest stack depth: 22696 bytes left [ 17.342577][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.342579][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: (udev-worker) [ 17.342581][ T201] preempt_count: 2, expected: 0 [ 17.342582][ T201] RCU nest depth: 0, expected: 0 [ 17.342583][ T201] locks held by (udev-worker)/201: 5, last CPU#0: [ 17.342585][ T201] #0: ffffffff8e6167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.342596][ T201] #1: ffffffff8e77ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.342601][ T201] #2: ffffffff8e77de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.342606][ T201] #3: ffffffff8e69d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.342609][ T201] #4: ffffffff8e69d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.342614][ T201] irq event stamp: 108140 [ 17.342614][ T201] hardirqs last enabled at (108139): [] __down_trylock_console_sem+0x86/0xa0 [ 17.342618][ T201] hardirqs last disabled at (108140): [] console_emit_next_record+0x3d4/0x4c0 [ 17.342620][ T201] softirqs last enabled at (108070): [] netlink_release+0x17b/0xcf0 [ 17.342624][ T201] softirqs last disabled at (108068): [] netlink_release+0xd2/0xcf0 [ 17.342626][ T201] Preemption disabled at: [ 17.342627][ T201] [<0000000000000000>] 0x0 [ 17.342634][ T201] CPU: 0 UID: 0 PID: 201 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.342637][ T201] Tainted: [W]=WARN [ 17.342645][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.342647][ T201] Call Trace: [ 17.342649][ T201] [ 17.342650][ T201] dump_stack_lvl+0x6f/0xa0 [ 17.342657][ T201] __might_resched.cold+0x1fe/0x2c1 [ 17.342661][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.342665][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 17.342670][ T201] __kmalloc_noprof+0x443/0x760 [ 17.342673][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 17.342681][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 17.342684][ T201] alloc_buf.isra.0+0x4b/0x260 [ 17.342687][ T201] put_chars+0x1e1/0x2f0 [ 17.342690][ T201] ? __send_to_port+0x420/0x420 [ 17.342691][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.342695][ T201] ? validate_chain+0x38b/0xc20 [ 17.342700][ T201] hvc_console_print+0x292/0x780 [ 17.342708][ T201] ? hvc_write+0x3a0/0x3a0 [ 17.342711][ T201] ? rcu_is_watching+0x16/0xd0 [ 17.342712][ T201] ? lock_acquire+0x13c/0x160 [ 17.342717][ T201] console_emit_next_record+0x22f/0x4c0 [ 17.342721][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 17.342723][ T201] ? console_flush_one_record+0x106/0x710 [ 17.342726][ T201] ? rcu_is_watching+0x16/0xd0 [ 17.342728][ T201] ? lock_acquire+0x13c/0x160 [ 17.342732][ T201] console_flush_one_record+0x46f/0x710 [ 17.342736][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 17.342738][ T201] ? __lock_acquire+0x518/0xc20 [ 17.342743][ T201] console_unlock+0xee/0x1f0 [ 17.342746][ T201] ? console_flush_one_record+0x710/0x710 [ 17.342748][ T201] ? rcu_is_watching+0x16/0xd0 [ 17.342750][ T201] ? lock_acquire+0xe0/0x160 [ 17.342753][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.342755][ T201] ? vprintk_emit+0x320/0x3e0 [ 17.342758][ T201] vprintk_emit+0x37c/0x3e0 [ 17.342761][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 17.342764][ T201] ? __lock_acquire+0x518/0xc20 [ 17.342768][ T201] _printk+0xc7/0x100 [ 17.342772][ T201] ? snapshot_read.cold+0x21/0x21 [ 17.342774][ T201] ? do_raw_spin_lock+0x131/0x280 [ 17.342777][ T201] ? __rwlock_init+0x150/0x150 [ 17.342781][ T201] ? do_raw_spin_lock+0x131/0x280 [ 17.342784][ T201] do_exit.cold+0x82/0x9c [ 17.342787][ T201] ? exit_notify+0x890/0x890 [ 17.342789][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 17.342791][ T201] ? rcu_is_watching+0x16/0xd0 [ 17.342795][ T201] do_group_exit+0xb8/0x370 [ 17.342798][ T201] __x64_sys_exit_group+0x3c/0x50 [ 17.342800][ T201] x64_sys_call+0x1567/0x1570 [ 17.342802][ T201] do_syscall_64+0xff/0x530 [ 17.342806][ T201] ? irq_exit_rcu+0x1a/0x30 [ 17.342809][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.342812][ T201] RIP: 0033:0x7fb397cce1b8 [ 17.342814][ T201] Code: Unable to access opcode bytes at 0x7fb397cce18e. [ 17.342815][ T201] RSP: 002b:00007ffc75d14058 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.342817][ T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb397cce1b8 [ 17.342819][ T201] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.342819][ T201] RBP: 00007ffc75d141e0 R08: 0000560ce25a8628 R09: 0000000000000000 [ 17.342820][ T201] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.342821][ T201] R13: 00007fb39752c050 R14: 00007fb3981ffd9e R15: 0000560ce25939e0 [ 17.342828][ T201]