[ 17.533539][ T202] (udev-worker) (202) used greatest stack depth: 22696 bytes left [ 17.533561][ T202] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.533563][ T202] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 202, name: (udev-worker) [ 17.533565][ T202] preempt_count: 2, expected: 0 [ 17.533566][ T202] RCU nest depth: 0, expected: 0 [ 17.533567][ T202] locks held by (udev-worker)/202: 5, last CPU#2: [ 17.533569][ T202] #0: ffffffff9a2167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.533582][ T202] #1: ffffffff9a37ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.533588][ T202] #2: ffffffff9a37de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.533592][ T202] #3: ffffffff9a29d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.533596][ T202] #4: ffffffff9a29d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.533600][ T202] irq event stamp: 65088 [ 17.533601][ T202] hardirqs last enabled at (65087): [] __down_trylock_console_sem+0x86/0xa0 [ 17.533604][ T202] hardirqs last disabled at (65088): [] console_emit_next_record+0x3d4/0x4c0 [ 17.533606][ T202] softirqs last enabled at (65018): [] netlink_release+0x17b/0xcf0 [ 17.533611][ T202] softirqs last disabled at (65016): [] netlink_release+0xd2/0xcf0 [ 17.533613][ T202] Preemption disabled at: [ 17.533614][ T202] [<0000000000000000>] 0x0 [ 17.533621][ T202] CPU: 2 UID: 0 PID: 202 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.533625][ T202] Tainted: [W]=WARN [ 17.533626][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.533628][ T202] Call Trace: [ 17.533629][ T202] [ 17.533631][ T202] dump_stack_lvl+0x6f/0xa0 [ 17.533638][ T202] __might_resched.cold+0x1fe/0x2c1 [ 17.533642][ T202] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.533647][ T202] ? __kmalloc_noprof+0xdb/0x760 [ 17.533652][ T202] __kmalloc_noprof+0x443/0x760 [ 17.533654][ T202] ? alloc_buf.isra.0+0x4b/0x260 [ 17.533661][ T202] ? do_raw_spin_unlock+0x59/0x250 [ 17.533664][ T202] alloc_buf.isra.0+0x4b/0x260 [ 17.533668][ T202] put_chars+0x1e1/0x2f0 [ 17.533670][ T202] ? __send_to_port+0x420/0x420 [ 17.533672][ T202] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.533676][ T202] ? validate_chain+0x38b/0xc20 [ 17.533688][ T202] hvc_console_print+0x292/0x780 [ 17.533696][ T202] ? hvc_write+0x3a0/0x3a0 [ 17.533699][ T202] ? rcu_is_watching+0x16/0xd0 [ 17.533701][ T202] ? lock_acquire+0x13c/0x160 [ 17.533706][ T202] console_emit_next_record+0x22f/0x4c0 [ 17.533710][ T202] ? devkmsg_read+0x4b0/0x4b0 [ 17.533712][ T202] ? console_flush_one_record+0x106/0x710 [ 17.533715][ T202] ? rcu_is_watching+0x16/0xd0 [ 17.533717][ T202] ? lock_acquire+0x13c/0x160 [ 17.533722][ T202] console_flush_one_record+0x46f/0x710 [ 17.533726][ T202] ? console_emit_next_record+0x4c0/0x4c0 [ 17.533728][ T202] ? __lock_acquire+0x518/0xc20 [ 17.533734][ T202] console_unlock+0xee/0x1f0 [ 17.533737][ T202] ? console_flush_one_record+0x710/0x710 [ 17.533739][ T202] ? rcu_is_watching+0x16/0xd0 [ 17.533741][ T202] ? lock_acquire+0xe0/0x160 [ 17.533745][ T202] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.533747][ T202] ? vprintk_emit+0x320/0x3e0 [ 17.533750][ T202] vprintk_emit+0x37c/0x3e0 [ 17.533753][ T202] ? wake_up_klogd_work_func+0x90/0x90 [ 17.533756][ T202] ? __lock_acquire+0x518/0xc20 [ 17.533760][ T202] _printk+0xc7/0x100 [ 17.533764][ T202] ? snapshot_read.cold+0x21/0x21 [ 17.533767][ T202] ? do_raw_spin_lock+0x131/0x280 [ 17.533770][ T202] ? __rwlock_init+0x150/0x150 [ 17.533774][ T202] ? do_raw_spin_lock+0x131/0x280 [ 17.533777][ T202] do_exit.cold+0x82/0x9c [ 17.533781][ T202] ? exit_notify+0x890/0x890 [ 17.533783][ T202] ? __lock_release.isra.0+0x69/0x1a0 [ 17.533786][ T202] ? rcu_is_watching+0x16/0xd0 [ 17.533790][ T202] do_group_exit+0xb8/0x370 [ 17.533793][ T202] __x64_sys_exit_group+0x3c/0x50 [ 17.533795][ T202] x64_sys_call+0x1567/0x1570 [ 17.533797][ T202] do_syscall_64+0xff/0x530 [ 17.533801][ T202] ? exc_page_fault+0xee/0x100 [ 17.533805][ T202] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.533807][ T202] RIP: 0033:0x7fae8df591b8 [ 17.533810][ T202] Code: Unable to access opcode bytes at 0x7fae8df5918e. [ 17.533811][ T202] RSP: 002b:00007ffc8605f108 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 17.533814][ T202] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae8df591b8 [ 17.533815][ T202] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 17.533816][ T202] RBP: 00007ffc8605f290 R08: 0000555e24067768 R09: 0000000000000000 [ 17.533817][ T202] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 17.533817][ T202] R13: 00007fae8d7b7050 R14: 00007fae8e48ad9e R15: 0000555e23ecfa50 [ 17.533825][ T202]