[ 13.466149][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 13.466168][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.466170][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 13.466172][ T84] preempt_count: 2, expected: 0 [ 13.466173][ T84] RCU nest depth: 0, expected: 0 [ 13.466174][ T84] locks held by (udev-worker)/84: 5, last CPU#0: [ 13.466176][ T84] #0: ffffffffb4e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.466188][ T84] #1: ffffffffb4f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.466194][ T84] #2: ffffffffb4f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.466198][ T84] #3: ffffffffb4e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.466201][ T84] #4: ffffffffb4e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.466205][ T84] irq event stamp: 433832 [ 13.466206][ T84] hardirqs last enabled at (433831): [] __down_trylock_console_sem+0x86/0xa0 [ 13.466209][ T84] hardirqs last disabled at (433832): [] console_emit_next_record+0x3d4/0x4c0 [ 13.466210][ T84] softirqs last enabled at (433768): [] netlink_release+0x17b/0xcf0 [ 13.466214][ T84] softirqs last disabled at (433766): [] netlink_release+0xd2/0xcf0 [ 13.466217][ T84] Preemption disabled at: [ 13.466217][ T84] [<0000000000000000>] 0x0 [ 13.466224][ T84] CPU: 0 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.466228][ T84] Tainted: [W]=WARN [ 13.466229][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.466230][ T84] Call Trace: [ 13.466232][ T84] [ 13.466234][ T84] dump_stack_lvl+0x6f/0xa0 [ 13.466240][ T84] __might_resched.cold+0x1fe/0x2c1 [ 13.466244][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.466248][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 13.466253][ T84] __kmalloc_noprof+0x443/0x760 [ 13.466255][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 13.466261][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 13.466263][ T84] alloc_buf.isra.0+0x4b/0x260 [ 13.466267][ T84] put_chars+0x1e1/0x2f0 [ 13.466270][ T84] ? __send_to_port+0x420/0x420 [ 13.466272][ T84] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.466277][ T84] ? validate_chain+0x38b/0xc20 [ 13.466282][ T84] hvc_console_print+0x292/0x780 [ 13.466289][ T84] ? hvc_write+0x3a0/0x3a0 [ 13.466292][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.466294][ T84] ? lock_acquire+0x13c/0x160 [ 13.466298][ T84] console_emit_next_record+0x22f/0x4c0 [ 13.466302][ T84] ? devkmsg_read+0x4b0/0x4b0 [ 13.466303][ T84] ? console_flush_one_record+0x106/0x710 [ 13.466306][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.466308][ T84] ? lock_acquire+0x13c/0x160 [ 13.466312][ T84] console_flush_one_record+0x46f/0x710 [ 13.466316][ T84] ? console_emit_next_record+0x4c0/0x4c0 [ 13.466318][ T84] ? __lock_acquire+0x518/0xc20 [ 13.466323][ T84] console_unlock+0xee/0x1f0 [ 13.466325][ T84] ? console_flush_one_record+0x710/0x710 [ 13.466327][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.466329][ T84] ? lock_acquire+0x60/0x160 [ 13.466332][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.466334][ T84] ? vprintk_emit+0x320/0x3e0 [ 13.466337][ T84] vprintk_emit+0x37c/0x3e0 [ 13.466341][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 13.466344][ T84] ? __lock_acquire+0x518/0xc20 [ 13.466347][ T84] _printk+0xc7/0x100 [ 13.466351][ T84] ? snapshot_read.cold+0x21/0x21 [ 13.466354][ T84] ? do_raw_spin_lock+0x131/0x280 [ 13.466356][ T84] ? __rwlock_init+0x150/0x150 [ 13.466360][ T84] ? do_raw_spin_lock+0x131/0x280 [ 13.466362][ T84] do_exit.cold+0x82/0x9c [ 13.466366][ T84] ? exit_notify+0x890/0x890 [ 13.466368][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 13.466371][ T84] ? rcu_is_watching+0x16/0xd0 [ 13.466374][ T84] do_group_exit+0xb8/0x370 [ 13.466378][ T84] __x64_sys_exit_group+0x3c/0x50 [ 13.466380][ T84] x64_sys_call+0x1567/0x1570 [ 13.466382][ T84] do_syscall_64+0xff/0x530 [ 13.466386][ T84] ? exc_page_fault+0xee/0x100 [ 13.466389][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.466391][ T84] RIP: 0033:0x7ff2b45ab1b8 [ 13.466393][ T84] Code: Unable to access opcode bytes at 0x7ff2b45ab18e. [ 13.466395][ T84] RSP: 002b:00007fff9cfaf3a8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 13.466397][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff2b45ab1b8 [ 13.466399][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 13.466399][ T84] RBP: 00007fff9cfaf530 R08: 0000564846ae8918 R09: 0000000000000000 [ 13.466400][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 13.466401][ T84] R13: 00007ff2b3e09050 R14: 00007ff2b4adcd9e R15: 000056484698e690 [ 13.466408][ T84]