[ 51.751938][ T82] (udev-worker) (82) used greatest stack depth: 22696 bytes left [ 51.751957][ T82] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 51.751960][ T82] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 82, name: (udev-worker) [ 51.751961][ T82] preempt_count: 2, expected: 0 [ 51.751962][ T82] RCU nest depth: 0, expected: 0 [ 51.751963][ T82] INFO: lockdep is turned off. [ 51.751965][ T82] irq event stamp: 2276438 [ 51.751965][ T82] hardirqs last enabled at (2276437): [] _raw_spin_unlock_irq+0x28/0x50 [ 51.751975][ T82] hardirqs last disabled at (2276438): [] __schedule+0x1246/0x20e0 [ 51.751977][ T82] softirqs last enabled at (2276042): [] fpu_clone+0xd9/0x410 [ 51.751980][ T82] softirqs last disabled at (2276040): [] fpu_clone+0x82/0x410 [ 51.751982][ T82] Preemption disabled at: [ 51.751983][ T82] [<0000000000000000>] 0x0 [ 51.751990][ T82] CPU: 0 UID: 0 PID: 82 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 51.751993][ T82] Tainted: [W]=WARN [ 51.751994][ T82] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 51.751996][ T82] Call Trace: [ 51.751997][ T82] [ 51.751999][ T82] dump_stack_lvl+0x6f/0xa0 [ 51.752004][ T82] __might_resched.cold+0x1fe/0x2c1 [ 51.752008][ T82] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 51.752011][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752015][ T82] __kmalloc_noprof+0x443/0x760 [ 51.752018][ T82] ? __rwlock_init+0x150/0x150 [ 51.752020][ T82] ? alloc_buf.isra.0+0x4b/0x260 [ 51.752024][ T82] ? do_raw_spin_unlock+0x59/0x250 [ 51.752025][ T82] alloc_buf.isra.0+0x4b/0x260 [ 51.752027][ T82] put_chars+0x1e1/0x2f0 [ 51.752029][ T82] ? __send_to_port+0x420/0x420 [ 51.752030][ T82] ? printk_get_next_message+0x2fe/0x7d0 [ 51.752033][ T82] ? console_prepend_replay+0x20/0x20 [ 51.752034][ T82] ? desc_read+0x219/0x2f0 [ 51.752037][ T82] hvc_console_print+0x292/0x780 [ 51.752040][ T82] ? hvc_write+0x3a0/0x3a0 [ 51.752041][ T82] ? __rwlock_init+0x150/0x150 [ 51.752043][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752044][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752045][ T82] ? lock_acquire+0x13c/0x160 [ 51.752048][ T82] console_emit_next_record+0x252/0x4f0 [ 51.752050][ T82] ? devkmsg_read+0x4e0/0x4e0 [ 51.752051][ T82] ? _prb_read_valid+0x6e0/0x6e0 [ 51.752054][ T82] ? __asan_memmove+0x3c/0x60 [ 51.752056][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752058][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752059][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752061][ T82] ? lock_acquire+0x13c/0x160 [ 51.752062][ T82] ? console_flush_one_record+0x111/0x710 [ 51.752064][ T82] console_flush_one_record+0x46f/0x710 [ 51.752066][ T82] ? console_emit_next_record+0x4f0/0x4f0 [ 51.752068][ T82] console_unlock+0xee/0x1f0 [ 51.752070][ T82] ? lock_acquire+0x13c/0x160 [ 51.752071][ T82] ? console_flush_one_record+0x710/0x710 [ 51.752072][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752074][ T82] ? lock_release+0x184/0x1f0 [ 51.752075][ T82] ? lock_acquire+0x60/0x160 [ 51.752076][ T82] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 51.752078][ T82] ? __down_trylock_console_sem+0x5e/0xa0 [ 51.752080][ T82] ? vprintk_emit+0x320/0x3e0 [ 51.752082][ T82] vprintk_emit+0x37c/0x3e0 [ 51.752084][ T82] ? wake_up_klogd_work_func+0x90/0x90 [ 51.752086][ T82] ? do_raw_read_unlock+0x70/0x70 [ 51.752087][ T82] ? forget_original_parent+0x5c/0xdb0 [ 51.752091][ T82] _printk+0xc7/0x100 [ 51.752094][ T82] ? snapshot_read.cold+0x21/0x21 [ 51.752095][ T82] ? do_raw_spin_lock+0x131/0x280 [ 51.752097][ T82] ? do_raw_spin_lock+0x131/0x280 [ 51.752098][ T82] ? __rwlock_init+0x150/0x150 [ 51.752100][ T82] ? do_raw_spin_lock+0x131/0x280 [ 51.752102][ T82] do_exit.cold+0x82/0x9c [ 51.752104][ T82] ? vfs_read+0x3dd/0x7b0 [ 51.752107][ T82] ? exit_notify+0x890/0x890 [ 51.752109][ T82] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 51.752112][ T82] ? rcu_is_watching+0x16/0xd0 [ 51.752114][ T82] do_group_exit+0xb8/0x370 [ 51.752116][ T82] __x64_sys_exit_group+0x3c/0x50 [ 51.752118][ T82] x64_sys_call+0x1567/0x1570 [ 51.752120][ T82] do_syscall_64+0xff/0x530 [ 51.752122][ T82] ? exc_page_fault+0xee/0x100 [ 51.752125][ T82] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 51.752127][ T82] RIP: 0033:0x7f7c6fc121b8 [ 51.752130][ T82] Code: Unable to access opcode bytes at 0x7f7c6fc1218e. [ 51.752131][ T82] RSP: 002b:00007ffea05b2348 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 51.752134][ T82] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7c6fc121b8 [ 51.752136][ T82] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 51.752137][ T82] RBP: 00007ffea05b24d0 R08: 000056272f5a2258 R09: 0000000000000000 [ 51.752137][ T82] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 51.752138][ T82] R13: 00007f7c6f470050 R14: 00007f7c70143d9e R15: 000056272f6d8680 [ 51.752140][ T82]