[ 50.784654][ T91] (udev-worker) (91) used greatest stack depth: 22696 bytes left [ 50.784673][ T91] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 50.784676][ T91] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 91, name: (udev-worker) [ 50.784678][ T91] preempt_count: 2, expected: 0 [ 50.784679][ T91] RCU nest depth: 0, expected: 0 [ 50.784679][ T91] INFO: lockdep is turned off. [ 50.784681][ T91] irq event stamp: 2777008 [ 50.784681][ T91] hardirqs last enabled at (2777007): [] _raw_spin_unlock_irq+0x28/0x50 [ 50.784691][ T91] hardirqs last disabled at (2777008): [] __schedule+0x1246/0x20e0 [ 50.784693][ T91] softirqs last enabled at (2776946): [] unix_release_sock+0x446/0xe50 [ 50.784696][ T91] softirqs last disabled at (2776944): [] unix_release_sock+0x39f/0xe50 [ 50.784698][ T91] Preemption disabled at: [ 50.784699][ T91] [<0000000000000000>] 0x0 [ 50.784706][ T91] CPU: 1 UID: 0 PID: 91 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 50.784709][ T91] Tainted: [W]=WARN [ 50.784710][ T91] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 50.784712][ T91] Call Trace: [ 50.784714][ T91] [ 50.784715][ T91] dump_stack_lvl+0x6f/0xa0 [ 50.784721][ T91] __might_resched.cold+0x1fe/0x2c1 [ 50.784726][ T91] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 50.784729][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784733][ T91] __kmalloc_noprof+0x443/0x760 [ 50.784737][ T91] ? __rwlock_init+0x150/0x150 [ 50.784739][ T91] ? alloc_buf.isra.0+0x4b/0x260 [ 50.784743][ T91] ? do_raw_spin_unlock+0x59/0x250 [ 50.784744][ T91] alloc_buf.isra.0+0x4b/0x260 [ 50.784746][ T91] put_chars+0x1e1/0x2f0 [ 50.784748][ T91] ? __send_to_port+0x420/0x420 [ 50.784749][ T91] ? printk_get_next_message+0x2fe/0x7d0 [ 50.784752][ T91] ? console_prepend_replay+0x20/0x20 [ 50.784754][ T91] ? desc_read+0x219/0x2f0 [ 50.784756][ T91] hvc_console_print+0x292/0x780 [ 50.784760][ T91] ? hvc_write+0x3a0/0x3a0 [ 50.784761][ T91] ? __rwlock_init+0x150/0x150 [ 50.784762][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784764][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784765][ T91] ? lock_acquire+0x13c/0x160 [ 50.784767][ T91] console_emit_next_record+0x252/0x4f0 [ 50.784769][ T91] ? devkmsg_read+0x4e0/0x4e0 [ 50.784771][ T91] ? _prb_read_valid+0x6e0/0x6e0 [ 50.784773][ T91] ? __asan_memmove+0x3c/0x60 [ 50.784776][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784777][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784779][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784780][ T91] ? lock_acquire+0x13c/0x160 [ 50.784782][ T91] ? console_flush_one_record+0x111/0x710 [ 50.784783][ T91] console_flush_one_record+0x46f/0x710 [ 50.784785][ T91] ? console_emit_next_record+0x4f0/0x4f0 [ 50.784788][ T91] console_unlock+0xee/0x1f0 [ 50.784789][ T91] ? lock_acquire+0x13c/0x160 [ 50.784791][ T91] ? console_flush_one_record+0x710/0x710 [ 50.784792][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784794][ T91] ? lock_release+0x184/0x1f0 [ 50.784795][ T91] ? lock_acquire+0x60/0x160 [ 50.784796][ T91] ? sync_exp_reset_tree_hotplug+0x3a0/0x3f0 [ 50.784798][ T91] ? __down_trylock_console_sem+0x5e/0xa0 [ 50.784800][ T91] ? vprintk_emit+0x320/0x3e0 [ 50.784802][ T91] vprintk_emit+0x37c/0x3e0 [ 50.784804][ T91] ? wake_up_klogd_work_func+0x90/0x90 [ 50.784806][ T91] ? do_raw_read_unlock+0x70/0x70 [ 50.784807][ T91] ? forget_original_parent+0x5c/0xdb0 [ 50.784811][ T91] _printk+0xc7/0x100 [ 50.784814][ T91] ? snapshot_read.cold+0x21/0x21 [ 50.784816][ T91] ? do_raw_spin_lock+0x131/0x280 [ 50.784817][ T91] ? do_raw_spin_lock+0x131/0x280 [ 50.784819][ T91] ? __rwlock_init+0x150/0x150 [ 50.784821][ T91] ? do_raw_spin_lock+0x131/0x280 [ 50.784822][ T91] do_exit.cold+0x82/0x9c [ 50.784825][ T91] ? vfs_read+0x3dd/0x7b0 [ 50.784828][ T91] ? exit_notify+0x890/0x890 [ 50.784830][ T91] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 50.784833][ T91] ? rcu_is_watching+0x16/0xd0 [ 50.784835][ T91] do_group_exit+0xb8/0x370 [ 50.784838][ T91] __x64_sys_exit_group+0x3c/0x50 [ 50.784840][ T91] x64_sys_call+0x1567/0x1570 [ 50.784842][ T91] do_syscall_64+0xff/0x530 [ 50.784844][ T91] ? exc_page_fault+0xee/0x100 [ 50.784847][ T91] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 50.784849][ T91] RIP: 0033:0x7fa5ed2751b8 [ 50.784851][ T91] Code: Unable to access opcode bytes at 0x7fa5ed27518e. [ 50.784853][ T91] RSP: 002b:00007ffd707f8ba8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 50.784859][ T91] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa5ed2751b8 [ 50.784860][ T91] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 50.784861][ T91] RBP: 00007ffd707f8d30 R08: 0000558983c56db8 R09: 0000000000000000 [ 50.784862][ T91] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 50.784863][ T91] R13: 00007fa5ecad3050 R14: 00007fa5ed7a6d9e R15: 0000558983c07490 [ 50.784865][ T91]