[ 14.863987][ T83] (udev-worker) (83) used greatest stack depth: 22696 bytes left [ 14.864005][ T83] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.864007][ T83] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 83, name: (udev-worker) [ 14.864009][ T83] preempt_count: 2, expected: 0 [ 14.864010][ T83] RCU nest depth: 0, expected: 0 [ 14.864011][ T83] locks held by (udev-worker)/83: 5, last CPU#2: [ 14.864013][ T83] #0: ffffffffa5c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.864025][ T83] #1: ffffffffa5d99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.864031][ T83] #2: ffffffffa5d99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.864035][ T83] #3: ffffffffa5c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.864039][ T83] #4: ffffffffa5c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.864042][ T83] irq event stamp: 439206 [ 14.864043][ T83] hardirqs last enabled at (439205): [] __down_trylock_console_sem+0x86/0xa0 [ 14.864046][ T83] hardirqs last disabled at (439206): [] console_emit_next_record+0x3f8/0x4f0 [ 14.864047][ T83] softirqs last enabled at (439142): [] netlink_release+0x17b/0xcf0 [ 14.864052][ T83] softirqs last disabled at (439140): [] netlink_release+0xd2/0xcf0 [ 14.864054][ T83] Preemption disabled at: [ 14.864055][ T83] [<0000000000000000>] 0x0 [ 14.864062][ T83] CPU: 2 UID: 0 PID: 83 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.864065][ T83] Tainted: [W]=WARN [ 14.864066][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.864068][ T83] Call Trace: [ 14.864070][ T83] [ 14.864071][ T83] dump_stack_lvl+0x6f/0xa0 [ 14.864078][ T83] __might_resched.cold+0x1fe/0x2c1 [ 14.864082][ T83] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.864086][ T83] ? __kmalloc_noprof+0xdb/0x760 [ 14.864091][ T83] __kmalloc_noprof+0x443/0x760 [ 14.864093][ T83] ? alloc_buf.isra.0+0x4b/0x260 [ 14.864099][ T83] ? do_raw_spin_unlock+0x59/0x250 [ 14.864101][ T83] alloc_buf.isra.0+0x4b/0x260 [ 14.864104][ T83] put_chars+0x1e1/0x2f0 [ 14.864107][ T83] ? __send_to_port+0x420/0x420 [ 14.864109][ T83] ? printk_get_next_message+0x2fe/0x7d0 [ 14.864112][ T83] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.864115][ T83] ? validate_chain+0x38b/0xc20 [ 14.864119][ T83] hvc_console_print+0x292/0x780 [ 14.864122][ T83] ? __lock_acquire+0x518/0xc20 [ 14.864123][ T83] ? __lock_acquire+0x518/0xc20 [ 14.864128][ T83] ? hvc_write+0x3a0/0x3a0 [ 14.864131][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.864134][ T83] ? lock_acquire+0x13c/0x160 [ 14.864137][ T83] console_emit_next_record+0x252/0x4f0 [ 14.864141][ T83] ? devkmsg_read+0x4e0/0x4e0 [ 14.864145][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.864147][ T83] ? lock_acquire+0x13c/0x160 [ 14.864151][ T83] console_flush_one_record+0x46f/0x710 [ 14.864155][ T83] ? console_emit_next_record+0x4f0/0x4f0 [ 14.864157][ T83] ? __lock_acquire+0x518/0xc20 [ 14.864162][ T83] console_unlock+0xee/0x1f0 [ 14.864165][ T83] ? console_flush_one_record+0x710/0x710 [ 14.864166][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.864168][ T83] ? lock_acquire+0x60/0x160 [ 14.864172][ T83] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.864173][ T83] ? vprintk_emit+0x320/0x3e0 [ 14.864176][ T83] vprintk_emit+0x37c/0x3e0 [ 14.864180][ T83] ? wake_up_klogd_work_func+0x90/0x90 [ 14.864183][ T83] ? __lock_acquire+0x518/0xc20 [ 14.864187][ T83] _printk+0xc7/0x100 [ 14.864191][ T83] ? snapshot_read.cold+0x21/0x21 [ 14.864194][ T83] ? do_raw_spin_lock+0x131/0x280 [ 14.864196][ T83] ? __rwlock_init+0x150/0x150 [ 14.864200][ T83] ? do_raw_spin_lock+0x131/0x280 [ 14.864203][ T83] do_exit.cold+0x82/0x9c [ 14.864207][ T83] ? exit_notify+0x890/0x890 [ 14.864208][ T83] ? __lock_release.isra.0+0x69/0x1a0 [ 14.864211][ T83] ? rcu_is_watching+0x16/0xd0 [ 14.864215][ T83] do_group_exit+0xb8/0x370 [ 14.864218][ T83] __x64_sys_exit_group+0x3c/0x50 [ 14.864221][ T83] x64_sys_call+0x1567/0x1570 [ 14.864223][ T83] do_syscall_64+0xff/0x530 [ 14.864226][ T83] ? exc_page_fault+0xee/0x100 [ 14.864229][ T83] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.864232][ T83] RIP: 0033:0x7fc8de4a11b8 [ 14.864234][ T83] Code: Unable to access opcode bytes at 0x7fc8de4a118e. [ 14.864235][ T83] RSP: 002b:00007ffc21c573b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.864237][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc8de4a11b8 [ 14.864239][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.864240][ T83] RBP: 00007ffc21c57540 R08: 000055e9e11f25d8 R09: 0000000000000000 [ 14.864241][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.864241][ T83] R13: 00007fc8ddcff050 R14: 00007fc8de9d2d9e R15: 000055e9e11f4850 [ 14.864248][ T83]