[ 40.163601][ T201] (udev-worker) (201) used greatest stack depth: 22696 bytes left [ 40.163618][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 40.163620][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: (udev-worker) [ 40.163622][ T201] preempt_count: 2, expected: 0 [ 40.163623][ T201] RCU nest depth: 0, expected: 0 [ 40.163623][ T201] INFO: lockdep is turned off. [ 40.163624][ T201] irq event stamp: 1385600 [ 40.163625][ T201] hardirqs last enabled at (1385599): [] _raw_spin_unlock_irq+0x28/0x50 [ 40.163634][ T201] hardirqs last disabled at (1385600): [] __schedule+0x1246/0x20e0 [ 40.163637][ T201] softirqs last enabled at (1385530): [] unix_release_sock+0x446/0xe60 [ 40.163641][ T201] softirqs last disabled at (1385528): [] unix_release_sock+0x39f/0xe60 [ 40.163643][ T201] Preemption disabled at: [ 40.163644][ T201] [<0000000000000000>] 0x0 [ 40.163650][ T201] CPU: 2 UID: 0 PID: 201 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 40.163654][ T201] Tainted: [W]=WARN [ 40.163655][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.163657][ T201] Call Trace: [ 40.163658][ T201] [ 40.163659][ T201] dump_stack_lvl+0x6f/0xa0 [ 40.163665][ T201] __might_resched.cold+0x1fe/0x2c1 [ 40.163669][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 40.163673][ T201] ? __asan_memcpy+0x3c/0x60 [ 40.163676][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163679][ T201] __kmalloc_noprof+0x443/0x760 [ 40.163682][ T201] ? __rwlock_init+0x150/0x150 [ 40.163685][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 40.163690][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 40.163692][ T201] alloc_buf.isra.0+0x4b/0x260 [ 40.163695][ T201] put_chars+0x1e1/0x2f0 [ 40.163696][ T201] ? __send_to_port+0x420/0x420 [ 40.163698][ T201] ? console_prepend_replay+0x20/0x20 [ 40.163701][ T201] hvc_console_print+0x292/0x780 [ 40.163706][ T201] ? hvc_write+0x3a0/0x3a0 [ 40.163708][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163709][ T201] ? lock_acquire+0x13c/0x160 [ 40.163712][ T201] console_emit_next_record+0x22f/0x4c0 [ 40.163714][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 40.163716][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163717][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163718][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163719][ T201] ? lock_acquire+0x13c/0x160 [ 40.163721][ T201] ? console_flush_one_record+0x111/0x710 [ 40.163723][ T201] console_flush_one_record+0x46f/0x710 [ 40.163726][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 40.163728][ T201] console_unlock+0xee/0x1f0 [ 40.163730][ T201] ? lock_acquire+0x13c/0x160 [ 40.163732][ T201] ? console_flush_one_record+0x710/0x710 [ 40.163734][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163734][ T201] ? lock_release+0x184/0x1f0 [ 40.163736][ T201] ? lock_acquire+0xe0/0x160 [ 40.163737][ T201] ? __rcu_read_lock+0x70/0x70 [ 40.163739][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 40.163741][ T201] ? vprintk_emit+0x320/0x3e0 [ 40.163743][ T201] vprintk_emit+0x37c/0x3e0 [ 40.163744][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 40.163746][ T201] ? do_raw_read_unlock+0x70/0x70 [ 40.163747][ T201] ? forget_original_parent+0x5c/0xdb0 [ 40.163750][ T201] _printk+0xc7/0x100 [ 40.163753][ T201] ? snapshot_read.cold+0x21/0x21 [ 40.163755][ T201] ? do_raw_spin_lock+0x131/0x280 [ 40.163757][ T201] ? do_raw_spin_lock+0x131/0x280 [ 40.163758][ T201] ? __rwlock_init+0x150/0x150 [ 40.163760][ T201] ? do_raw_spin_lock+0x131/0x280 [ 40.163762][ T201] do_exit.cold+0x82/0x9c [ 40.163765][ T201] ? vfs_read+0x385/0x520 [ 40.163767][ T201] ? exit_notify+0x890/0x890 [ 40.163769][ T201] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 40.163771][ T201] ? rcu_is_watching+0x16/0xd0 [ 40.163773][ T201] do_group_exit+0xb8/0x370 [ 40.163774][ T201] __x64_sys_exit_group+0x3c/0x50 [ 40.163776][ T201] x64_sys_call+0x1567/0x1570 [ 40.163778][ T201] do_syscall_64+0xff/0x530 [ 40.163781][ T201] ? irq_exit_rcu+0x1a/0x30 [ 40.163783][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 40.163785][ T201] RIP: 0033:0x7f7f692d91b8 [ 40.163787][ T201] Code: Unable to access opcode bytes at 0x7f7f692d918e. [ 40.163788][ T201] RSP: 002b:00007fffe2540c98 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 40.163791][ T201] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f692d91b8 [ 40.163793][ T201] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 40.163794][ T201] RBP: 00007fffe2540e20 R08: 00005565223f92c8 R09: 0000000000000000 [ 40.163795][ T201] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 40.163796][ T201] R13: 00007f7f68b37050 R14: 00007f7f6980ad9e R15: 0000556522286270 [ 40.163798][ T201]