[ 12.341984][ T88] (udev-worker) (88) used greatest stack depth: 22696 bytes left [ 12.342001][ T88] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.342003][ T88] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 88, name: (udev-worker) [ 12.342005][ T88] preempt_count: 2, expected: 0 [ 12.342005][ T88] RCU nest depth: 0, expected: 0 [ 12.342006][ T88] locks held by (udev-worker)/88: 5, last CPU#2: [ 12.342008][ T88] #0: ffffffff920027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.342019][ T88] #1: ffffffff92199dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.342025][ T88] #2: ffffffff92199e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.342029][ T88] #3: ffffffff92089760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.342033][ T88] #4: ffffffff92089660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 12.342037][ T88] irq event stamp: 465300 [ 12.342038][ T88] hardirqs last enabled at (465299): [] __down_trylock_console_sem+0x86/0xa0 [ 12.342040][ T88] hardirqs last disabled at (465300): [] console_emit_next_record+0x3f8/0x4f0 [ 12.342042][ T88] softirqs last enabled at (465234): [] netlink_release+0x17b/0xcf0 [ 12.342046][ T88] softirqs last disabled at (465232): [] netlink_release+0xd2/0xcf0 [ 12.342049][ T88] Preemption disabled at: [ 12.342049][ T88] [<0000000000000000>] 0x0 [ 12.342056][ T88] CPU: 2 UID: 0 PID: 88 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.342059][ T88] Tainted: [W]=WARN [ 12.342060][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.342062][ T88] Call Trace: [ 12.342063][ T88] [ 12.342065][ T88] dump_stack_lvl+0x6f/0xa0 [ 12.342071][ T88] __might_resched.cold+0x1fe/0x2c1 [ 12.342075][ T88] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.342079][ T88] ? __kmalloc_noprof+0xdb/0x760 [ 12.342084][ T88] __kmalloc_noprof+0x443/0x760 [ 12.342087][ T88] ? alloc_buf.isra.0+0x4b/0x260 [ 12.342093][ T88] ? do_raw_spin_unlock+0x59/0x250 [ 12.342095][ T88] alloc_buf.isra.0+0x4b/0x260 [ 12.342099][ T88] put_chars+0x1e1/0x2f0 [ 12.342102][ T88] ? __send_to_port+0x420/0x420 [ 12.342104][ T88] ? printk_get_next_message+0x2fe/0x7d0 [ 12.342107][ T88] ? rcu_read_lock_any_held+0x3c/0x90 [ 12.342110][ T88] ? validate_chain+0x38b/0xc20 [ 12.342114][ T88] hvc_console_print+0x292/0x780 [ 12.342118][ T88] ? __lock_acquire+0x518/0xc20 [ 12.342120][ T88] ? __lock_acquire+0x518/0xc20 [ 12.342124][ T88] ? hvc_write+0x3a0/0x3a0 [ 12.342127][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.342130][ T88] ? lock_acquire+0x13c/0x160 [ 12.342134][ T88] console_emit_next_record+0x252/0x4f0 [ 12.342138][ T88] ? devkmsg_read+0x4e0/0x4e0 [ 12.342142][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.342144][ T88] ? lock_acquire+0x13c/0x160 [ 12.342148][ T88] console_flush_one_record+0x46f/0x710 [ 12.342152][ T88] ? console_emit_next_record+0x4f0/0x4f0 [ 12.342154][ T88] ? __lock_acquire+0x518/0xc20 [ 12.342158][ T88] console_unlock+0xee/0x1f0 [ 12.342161][ T88] ? console_flush_one_record+0x710/0x710 [ 12.342163][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.342165][ T88] ? lock_acquire+0xa0/0x160 [ 12.342168][ T88] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.342170][ T88] ? vprintk_emit+0x320/0x3e0 [ 12.342173][ T88] vprintk_emit+0x37c/0x3e0 [ 12.342177][ T88] ? wake_up_klogd_work_func+0x90/0x90 [ 12.342180][ T88] ? __lock_acquire+0x518/0xc20 [ 12.342184][ T88] _printk+0xc7/0x100 [ 12.342187][ T88] ? snapshot_read.cold+0x21/0x21 [ 12.342190][ T88] ? do_raw_spin_lock+0x131/0x280 [ 12.342192][ T88] ? __rwlock_init+0x150/0x150 [ 12.342196][ T88] ? do_raw_spin_lock+0x131/0x280 [ 12.342198][ T88] do_exit.cold+0x82/0x9c [ 12.342202][ T88] ? exit_notify+0x890/0x890 [ 12.342203][ T88] ? __lock_release.isra.0+0x69/0x1a0 [ 12.342205][ T88] ? rcu_is_watching+0x16/0xd0 [ 12.342209][ T88] do_group_exit+0xb8/0x370 [ 12.342212][ T88] __x64_sys_exit_group+0x3c/0x50 [ 12.342214][ T88] x64_sys_call+0x1567/0x1570 [ 12.342216][ T88] do_syscall_64+0xff/0x530 [ 12.342219][ T88] ? exc_page_fault+0xee/0x100 [ 12.342222][ T88] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.342224][ T88] RIP: 0033:0x7fb0f282e1b8 [ 12.342226][ T88] Code: Unable to access opcode bytes at 0x7fb0f282e18e. [ 12.342227][ T88] RSP: 002b:00007ffd970ca808 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.342230][ T88] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0f282e1b8 [ 12.342231][ T88] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.342232][ T88] RBP: 00007ffd970ca990 R08: 0000562e1c5a2368 R09: 0000000000000000 [ 12.342233][ T88] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 12.342234][ T88] R13: 00007fb0f208c050 R14: 00007fb0f2d5fd9e R15: 0000562e1c4490f0 [ 12.342240][ T88]