[ 14.737500][ T92] (udev-worker) (92) used greatest stack depth: 22696 bytes left [ 14.737521][ T92] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.737523][ T92] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 92, name: (udev-worker) [ 14.737524][ T92] preempt_count: 2, expected: 0 [ 14.737525][ T92] RCU nest depth: 0, expected: 0 [ 14.737526][ T92] locks held by (udev-worker)/92: 5, last CPU#2: [ 14.737529][ T92] #0: ffffffff8a8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.737541][ T92] #1: ffffffff8a999cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.737546][ T92] #2: ffffffff8a999d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.737549][ T92] #3: ffffffff8a889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.737553][ T92] #4: ffffffff8a889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.737556][ T92] irq event stamp: 831124 [ 14.737557][ T92] hardirqs last enabled at (831123): [] __down_trylock_console_sem+0x86/0xa0 [ 14.737560][ T92] hardirqs last disabled at (831124): [] console_emit_next_record+0x3f8/0x4f0 [ 14.737562][ T92] softirqs last enabled at (831058): [] netlink_release+0x17b/0xcf0 [ 14.737566][ T92] softirqs last disabled at (831056): [] netlink_release+0xd2/0xcf0 [ 14.737569][ T92] Preemption disabled at: [ 14.737569][ T92] [<0000000000000000>] 0x0 [ 14.737577][ T92] CPU: 2 UID: 0 PID: 92 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.737580][ T92] Tainted: [W]=WARN [ 14.737581][ T92] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.737583][ T92] Call Trace: [ 14.737584][ T92] [ 14.737586][ T92] dump_stack_lvl+0x6f/0xa0 [ 14.737591][ T92] __might_resched.cold+0x1fe/0x2c1 [ 14.737596][ T92] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.737600][ T92] ? __kmalloc_noprof+0xdb/0x760 [ 14.737605][ T92] __kmalloc_noprof+0x443/0x760 [ 14.737607][ T92] ? alloc_buf.isra.0+0x4b/0x260 [ 14.737614][ T92] ? do_raw_spin_unlock+0x59/0x250 [ 14.737616][ T92] alloc_buf.isra.0+0x4b/0x260 [ 14.737619][ T92] put_chars+0x1e1/0x2f0 [ 14.737622][ T92] ? __send_to_port+0x420/0x420 [ 14.737624][ T92] ? printk_get_next_message+0x2fe/0x7d0 [ 14.737627][ T92] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.737631][ T92] ? validate_chain+0x38b/0xc20 [ 14.737635][ T92] hvc_console_print+0x292/0x780 [ 14.737639][ T92] ? __lock_acquire+0x518/0xc20 [ 14.737641][ T92] ? __lock_acquire+0x518/0xc20 [ 14.737646][ T92] ? hvc_write+0x3a0/0x3a0 [ 14.737649][ T92] ? rcu_is_watching+0x16/0xd0 [ 14.737651][ T92] ? lock_acquire+0x13c/0x160 [ 14.737656][ T92] console_emit_next_record+0x252/0x4f0 [ 14.737663][ T92] ? devkmsg_read+0x4e0/0x4e0 [ 14.737667][ T92] ? rcu_is_watching+0x16/0xd0 [ 14.737669][ T92] ? lock_acquire+0x13c/0x160 [ 14.737673][ T92] console_flush_one_record+0x46f/0x710 [ 14.737677][ T92] ? console_emit_next_record+0x4f0/0x4f0 [ 14.737678][ T92] ? __lock_acquire+0x518/0xc20 [ 14.737683][ T92] console_unlock+0xee/0x1f0 [ 14.737686][ T92] ? console_flush_one_record+0x710/0x710 [ 14.737687][ T92] ? rcu_is_watching+0x16/0xd0 [ 14.737689][ T92] ? lock_acquire+0x60/0x160 [ 14.737693][ T92] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.737695][ T92] ? vprintk_emit+0x320/0x3e0 [ 14.737697][ T92] vprintk_emit+0x37c/0x3e0 [ 14.737701][ T92] ? wake_up_klogd_work_func+0x90/0x90 [ 14.737704][ T92] ? __lock_acquire+0x518/0xc20 [ 14.737708][ T92] _printk+0xc7/0x100 [ 14.737711][ T92] ? snapshot_read.cold+0x21/0x21 [ 14.737714][ T92] ? do_raw_spin_lock+0x131/0x280 [ 14.737716][ T92] ? __rwlock_init+0x150/0x150 [ 14.737719][ T92] ? do_raw_spin_lock+0x131/0x280 [ 14.737722][ T92] do_exit.cold+0x82/0x9c [ 14.737725][ T92] ? exit_notify+0x890/0x890 [ 14.737727][ T92] ? __lock_release.isra.0+0x69/0x1a0 [ 14.737730][ T92] ? rcu_is_watching+0x16/0xd0 [ 14.737733][ T92] do_group_exit+0xb8/0x370 [ 14.737736][ T92] __x64_sys_exit_group+0x3c/0x50 [ 14.737738][ T92] x64_sys_call+0x1567/0x1570 [ 14.737741][ T92] do_syscall_64+0xff/0x530 [ 14.737744][ T92] ? exc_page_fault+0xee/0x100 [ 14.737747][ T92] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.737749][ T92] RIP: 0033:0x7f5cc89a31b8 [ 14.737752][ T92] Code: Unable to access opcode bytes at 0x7f5cc89a318e. [ 14.737752][ T92] RSP: 002b:00007ffe3cb62258 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.737755][ T92] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5cc89a31b8 [ 14.737756][ T92] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.737757][ T92] RBP: 00007ffe3cb623e0 R08: 0000558eeaa10918 R09: 0000000000000000 [ 14.737758][ T92] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.737759][ T92] R13: 00007f5cc8201050 R14: 00007f5cc8ed4d9e R15: 0000558eea8bcb30 [ 14.737765][ T92]