[ 14.329074][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 14.329095][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.329097][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 14.329099][ T88] preempt_count: 2, expected: 0 [ 14.329100][ T88] RCU nest depth: 0, expected: 0 [ 14.329100][ T88] locks held by (udev-worker)/88: 5, last CPU#2: [ 14.329103][ T88] #0: ffffffff8ca027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.329115][ T88] #1: ffffffff8cb99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.329120][ T88] #2: ffffffff8cb99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.329125][ T88] #3: ffffffff8ca89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.329128][ T88] #4: ffffffff8ca89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.329132][ T88] irq event stamp: 488242 [ 14.329133][ T88] hardirqs last enabled at (488241): [] __down_trylock_console_sem+0x86/0xa0 [ 14.329135][ T88] hardirqs last disabled at (488242): [] console_emit_next_record+0x3f8/0x4f0 [ 14.329137][ T88] softirqs last enabled at (488178): [] netlink_release+0x17b/0xcf0 [ 14.329141][ T88] softirqs last disabled at (488176): [] netlink_release+0xd2/0xcf0 [ 14.329144][ T88] Preemption disabled at: [ 14.329145][ T88] [<0000000000000000>] 0x0 [ 14.329152][ T88] CPU: 2 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.329155][ T88] Tainted: [W]=WARN [ 14.329156][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.329158][ T88] Call Trace: [ 14.329160][ T88] [ 14.329161][ T88] dump_stack_lvl+0x6f/0xa0 [ 14.329167][ T88] __might_resched.cold+0x1fe/0x2c1 [ 14.329172][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.329178][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 14.329183][ T88] __kmalloc_noprof+0x443/0x760 [ 14.329185][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 14.329191][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 14.329193][ T88] alloc_buf.isra.0+0x4b/0x260 [ 14.329196][ T88] put_chars+0x1e1/0x2f0 [ 14.329199][ T88] ? __send_to_port+0x420/0x420 [ 14.329201][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 14.329204][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.329207][ T88] ? validate_chain+0x38b/0xc20 [ 14.329212][ T88] hvc_console_print+0x292/0x780 [ 14.329214][ T88] ? __lock_acquire+0x518/0xc20 [ 14.329216][ T88] ? __lock_acquire+0x518/0xc20 [ 14.329220][ T88] ? hvc_write+0x3a0/0x3a0 [ 14.329223][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.329226][ T88] ? lock_acquire+0x13c/0x160 [ 14.329230][ T88] console_emit_next_record+0x252/0x4f0 [ 14.329234][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 14.329238][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.329240][ T88] ? lock_acquire+0x13c/0x160 [ 14.329244][ T88] console_flush_one_record+0x46f/0x710 [ 14.329248][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 14.329250][ T88] ? __lock_acquire+0x518/0xc20 [ 14.329255][ T88] console_unlock+0xee/0x1f0 [ 14.329258][ T88] ? console_flush_one_record+0x710/0x710 [ 14.329259][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.329262][ T88] ? lock_acquire+0x60/0x160 [ 14.329265][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.329267][ T88] ? vprintk_emit+0x320/0x3e0 [ 14.329270][ T88] vprintk_emit+0x37c/0x3e0 [ 14.329273][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 14.329277][ T88] ? __lock_acquire+0x518/0xc20 [ 14.329280][ T88] _printk+0xc7/0x100 [ 14.329284][ T88] ? snapshot_read.cold+0x21/0x21 [ 14.329287][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.329289][ T88] ? __rwlock_init+0x150/0x150 [ 14.329293][ T88] ? do_raw_spin_lock+0x131/0x280 [ 14.329296][ T88] do_exit.cold+0x82/0x9c [ 14.329300][ T88] ? exit_notify+0x890/0x890 [ 14.329301][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 14.329304][ T88] ? rcu_is_watching+0x16/0xd0 [ 14.329308][ T88] do_group_exit+0xb8/0x370 [ 14.329312][ T88] __x64_sys_exit_group+0x3c/0x50 [ 14.329314][ T88] x64_sys_call+0x1567/0x1570 [ 14.329316][ T88] do_syscall_64+0xff/0x530 [ 14.329320][ T88] ? exc_page_fault+0xee/0x100 [ 14.329323][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.329326][ T88] RIP: 0033:0x7f315b5371b8 [ 14.329328][ T88] Code: Unable to access opcode bytes at 0x7f315b53718e. [ 14.329330][ T88] RSP: 002b:00007ffc199eb7a8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.329332][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f315b5371b8 [ 14.329334][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.329334][ T88] RBP: 00007ffc199eb930 R08: 0000556d4d9939d8 R09: 0000000000000000 [ 14.329335][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.329336][ T88] R13: 00007f315ad95050 R14: 00007f315ba68d9e R15: 0000556d4d986350 [ 14.329343][ T88]