[ 12.331053][ T84] (udev-worker) (84) used greatest stack depth: 22696 bytes left [ 12.331072][ T84] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.331074][ T84] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 84, name: (udev-worker) [ 12.331076][ T84] preempt_count: 2, expected: 0 [ 12.331077][ T84] RCU nest depth: 0, expected: 0 [ 12.331078][ T84] locks held by (udev-worker)/84: 5, last CPU#3: [ 12.331080][ T84] #0: ffffffff94a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.331091][ T84] #1: ffffffff94b99dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.331097][ T84] #2: ffffffff94b99e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.331101][ T84] #3: ffffffff94a89760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.331105][ T84] #4: ffffffff94a89660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.331109][ T84] irq event stamp: 356600 [ 12.331110][ T84] hardirqs last enabled at (356599): [] __down_trylock_console_sem+0x86/0xa0 [ 12.331112][ T84] hardirqs last disabled at (356600): [] console_emit_next_record+0x3f8/0x4f0 [ 12.331114][ T84] softirqs last enabled at (356536): [] netlink_release+0x17b/0xcf0 [ 12.331119][ T84] softirqs last disabled at (356534): [] netlink_release+0xd2/0xcf0 [ 12.331121][ T84] Preemption disabled at: [ 12.331122][ T84] [<0000000000000000>] 0x0 [ 12.331129][ T84] CPU: 3 UID: 0 PID: 84 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.331132][ T84] Tainted: [W]=WARN [ 12.331133][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.331135][ T84] Call Trace: [ 12.331137][ T84] [ 12.331138][ T84] dump_stack_lvl+0x6f/0xa0 [ 12.331145][ T84] __might_resched.cold+0x1fe/0x2c1 [ 12.331149][ T84] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.331153][ T84] ? __kmalloc_noprof+0xdb/0x760 [ 12.331159][ T84] __kmalloc_noprof+0x443/0x760 [ 12.331161][ T84] ? alloc_buf.isra.0+0x4b/0x260 [ 12.331167][ T84] ? do_raw_spin_unlock+0x59/0x250 [ 12.331170][ T84] alloc_buf.isra.0+0x4b/0x260 [ 12.331174][ T84] put_chars+0x1e1/0x2f0 [ 12.331177][ T84] ? __send_to_port+0x420/0x420 [ 12.331179][ T84] ? printk_get_next_message+0x2fe/0x7d0 [ 12.331182][ T84] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.331185][ T84] ? validate_chain+0x38b/0xc20 [ 12.331189][ T84] hvc_console_print+0x292/0x780 [ 12.331193][ T84] ? __lock_acquire+0x518/0xc20 [ 12.331195][ T84] ? __lock_acquire+0x518/0xc20 [ 12.331199][ T84] ? hvc_write+0x3a0/0x3a0 [ 12.331202][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.331206][ T84] ? lock_acquire+0x13c/0x160 [ 12.331209][ T84] console_emit_next_record+0x252/0x4f0 [ 12.331213][ T84] ? devkmsg_read+0x4e0/0x4e0 [ 12.331217][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.331220][ T84] ? lock_acquire+0x13c/0x160 [ 12.331223][ T84] console_flush_one_record+0x46f/0x710 [ 12.331227][ T84] ? console_emit_next_record+0x4f0/0x4f0 [ 12.331229][ T84] ? __lock_acquire+0x518/0xc20 [ 12.331236][ T84] console_unlock+0xee/0x1f0 [ 12.331239][ T84] ? console_flush_one_record+0x710/0x710 [ 12.331240][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.331243][ T84] ? lock_acquire+0xa0/0x160 [ 12.331246][ T84] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.331248][ T84] ? vprintk_emit+0x320/0x3e0 [ 12.331251][ T84] vprintk_emit+0x37c/0x3e0 [ 12.331255][ T84] ? wake_up_klogd_work_func+0x90/0x90 [ 12.331258][ T84] ? __lock_acquire+0x518/0xc20 [ 12.331262][ T84] _printk+0xc7/0x100 [ 12.331265][ T84] ? snapshot_read.cold+0x21/0x21 [ 12.331268][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.331270][ T84] ? __rwlock_init+0x150/0x150 [ 12.331274][ T84] ? do_raw_spin_lock+0x131/0x280 [ 12.331277][ T84] do_exit.cold+0x82/0x9c [ 12.331280][ T84] ? exit_notify+0x890/0x890 [ 12.331282][ T84] ? __lock_release.isra.0+0x69/0x1a0 [ 12.331284][ T84] ? rcu_is_watching+0x16/0xd0 [ 12.331288][ T84] do_group_exit+0xb8/0x370 [ 12.331291][ T84] __x64_sys_exit_group+0x3c/0x50 [ 12.331293][ T84] x64_sys_call+0x1567/0x1570 [ 12.331295][ T84] do_syscall_64+0xff/0x530 [ 12.331298][ T84] ? exc_page_fault+0xee/0x100 [ 12.331301][ T84] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.331303][ T84] RIP: 0033:0x7fb5da0671b8 [ 12.331306][ T84] Code: Unable to access opcode bytes at 0x7fb5da06718e. [ 12.331307][ T84] RSP: 002b:00007ffe89be5c28 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.331309][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb5da0671b8 [ 12.331311][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.331312][ T84] RBP: 00007ffe89be5db0 R08: 0000563b38552b88 R09: 0000000000000000 [ 12.331312][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.331313][ T84] R13: 00007fb5d98c5050 R14: 00007fb5da598d9e R15: 0000563b383b08b0 [ 12.331320][ T84]