[ 12.088477][ T82] (udev-worker) (82) used greatest stack depth: 22696 bytes left [ 12.088493][ T82] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.088495][ T82] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 82, name: (udev-worker) [ 12.088497][ T82] preempt_count: 2, expected: 0 [ 12.088498][ T82] RCU nest depth: 0, expected: 0 [ 12.088499][ T82] INFO: lockdep is turned off. [ 12.088500][ T82] irq event stamp: 427236 [ 12.088501][ T82] hardirqs last enabled at (427235): [] _raw_spin_unlock_irq+0x28/0x50 [ 12.088510][ T82] hardirqs last disabled at (427236): [] __schedule+0x1246/0x20e0 [ 12.088512][ T82] softirqs last enabled at (427140): [] unix_release_sock+0x446/0xe50 [ 12.088516][ T82] softirqs last disabled at (427138): [] unix_release_sock+0x39f/0xe50 [ 12.088518][ T82] Preemption disabled at: [ 12.088518][ T82] [<0000000000000000>] 0x0 [ 12.088524][ T82] CPU: 0 UID: 0 PID: 82 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.088528][ T82] Tainted: [W]=WARN [ 12.088529][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.088530][ T82] Call Trace: [ 12.088532][ T82] [ 12.088533][ T82] dump_stack_lvl+0x6f/0xa0 [ 12.088539][ T82] __might_resched.cold+0x1fe/0x2c1 [ 12.088542][ T82] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.088547][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088550][ T82] __kmalloc_noprof+0x443/0x760 [ 12.088554][ T82] ? __rwlock_init+0x150/0x150 [ 12.088557][ T82] ? alloc_buf.isra.0+0x4b/0x260 [ 12.088562][ T82] ? do_raw_spin_unlock+0x59/0x250 [ 12.088563][ T82] alloc_buf.isra.0+0x4b/0x260 [ 12.088566][ T82] put_chars+0x1e1/0x2f0 [ 12.088569][ T82] ? __send_to_port+0x420/0x420 [ 12.088570][ T82] ? printk_get_next_message+0x2fe/0x7d0 [ 12.088573][ T82] ? console_prepend_replay+0x20/0x20 [ 12.088575][ T82] ? desc_read+0x219/0x2f0 [ 12.088577][ T82] hvc_console_print+0x292/0x780 [ 12.088582][ T82] ? hvc_write+0x3a0/0x3a0 [ 12.088584][ T82] ? __rwlock_init+0x150/0x150 [ 12.088585][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088587][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088589][ T82] ? lock_acquire+0x13c/0x160 [ 12.088591][ T82] console_emit_next_record+0x252/0x4f0 [ 12.088593][ T82] ? devkmsg_read+0x4e0/0x4e0 [ 12.088595][ T82] ? _prb_read_valid+0x6e0/0x6e0 [ 12.088597][ T82] ? __asan_memmove+0x3c/0x60 [ 12.088599][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088601][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088602][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088604][ T82] ? lock_acquire+0x13c/0x160 [ 12.088606][ T82] ? console_flush_one_record+0x111/0x710 [ 12.088607][ T82] console_flush_one_record+0x46f/0x710 [ 12.088610][ T82] ? console_emit_next_record+0x4f0/0x4f0 [ 12.088612][ T82] console_unlock+0xee/0x1f0 [ 12.088614][ T82] ? lock_acquire+0x13c/0x160 [ 12.088616][ T82] ? console_flush_one_record+0x710/0x710 [ 12.088617][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088619][ T82] ? lock_release+0x184/0x1f0 [ 12.088620][ T82] ? lock_acquire+0xa0/0x160 [ 12.088622][ T82] ? sync_exp_reset_tree_hotplug+0x3e0/0x3f0 [ 12.088624][ T82] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.088626][ T82] ? vprintk_emit+0x320/0x3e0 [ 12.088628][ T82] vprintk_emit+0x37c/0x3e0 [ 12.088630][ T82] ? wake_up_klogd_work_func+0x90/0x90 [ 12.088632][ T82] ? do_raw_read_unlock+0x70/0x70 [ 12.088634][ T82] ? forget_original_parent+0x5c/0xdb0 [ 12.088637][ T82] _printk+0xc7/0x100 [ 12.088640][ T82] ? snapshot_read.cold+0x21/0x21 [ 12.088641][ T82] ? do_raw_spin_lock+0x131/0x280 [ 12.088643][ T82] ? do_raw_spin_lock+0x131/0x280 [ 12.088645][ T82] ? __rwlock_init+0x150/0x150 [ 12.088647][ T82] ? do_raw_spin_lock+0x131/0x280 [ 12.088648][ T82] do_exit.cold+0x82/0x9c [ 12.088651][ T82] ? vfs_read+0x3dd/0x7b0 [ 12.088653][ T82] ? exit_notify+0x890/0x890 [ 12.088656][ T82] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 12.088659][ T82] ? rcu_is_watching+0x16/0xd0 [ 12.088661][ T82] do_group_exit+0xb8/0x370 [ 12.088663][ T82] __x64_sys_exit_group+0x3c/0x50 [ 12.088664][ T82] x64_sys_call+0x1567/0x1570 [ 12.088666][ T82] do_syscall_64+0xff/0x530 [ 12.088669][ T82] ? common_interrupt+0x5a/0xf0 [ 12.088671][ T82] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.088673][ T82] RIP: 0033:0x7fb95ad1c1b8 [ 12.088674][ T82] Code: Unable to access opcode bytes at 0x7fb95ad1c18e. [ 12.088676][ T82] RSP: 002b:00007ffe427d9bb8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.088679][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb95ad1c1b8 [ 12.088681][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.088681][ T82] RBP: 00007ffe427d9d40 R08: 00005633f6ce6f48 R09: 0000000000000000 [ 12.088682][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.088683][ T82] R13: 00007fb95a57a050 R14: 00007fb95b24dd9e R15: 00005633f6e2a6e0 [ 12.088685][ T82]