[ 15.048652][ T90] (udev-worker) (90) used greatest stack depth: 22696 bytes left [ 15.048671][ T90] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.048673][ T90] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 90, name: (udev-worker) [ 15.048674][ T90] preempt_count: 2, expected: 0 [ 15.048675][ T90] RCU nest depth: 0, expected: 0 [ 15.048676][ T90] locks held by (udev-worker)/90: 5, last CPU#2: [ 15.048679][ T90] #0: ffffffffbb8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.048691][ T90] #1: ffffffffbb999cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.048697][ T90] #2: ffffffffbb999d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.048701][ T90] #3: ffffffffbb889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.048704][ T90] #4: ffffffffbb889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 15.048708][ T90] irq event stamp: 492724 [ 15.048709][ T90] hardirqs last enabled at (492723): [] __down_trylock_console_sem+0x86/0xa0 [ 15.048711][ T90] hardirqs last disabled at (492724): [] console_emit_next_record+0x3f8/0x4f0 [ 15.048713][ T90] softirqs last enabled at (492660): [] netlink_release+0x17b/0xcf0 [ 15.048717][ T90] softirqs last disabled at (492658): [] netlink_release+0xd2/0xcf0 [ 15.048719][ T90] Preemption disabled at: [ 15.048720][ T90] [<0000000000000000>] 0x0 [ 15.048727][ T90] CPU: 2 UID: 0 PID: 90 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.048730][ T90] Tainted: [W]=WARN [ 15.048731][ T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.048733][ T90] Call Trace: [ 15.048735][ T90] [ 15.048736][ T90] dump_stack_lvl+0x6f/0xa0 [ 15.048742][ T90] __might_resched.cold+0x1fe/0x2c1 [ 15.048747][ T90] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.048750][ T90] ? __kmalloc_noprof+0xdb/0x760 [ 15.048755][ T90] __kmalloc_noprof+0x443/0x760 [ 15.048757][ T90] ? alloc_buf.isra.0+0x4b/0x260 [ 15.048762][ T90] ? do_raw_spin_unlock+0x59/0x250 [ 15.048764][ T90] alloc_buf.isra.0+0x4b/0x260 [ 15.048767][ T90] put_chars+0x1e1/0x2f0 [ 15.048770][ T90] ? __send_to_port+0x420/0x420 [ 15.048772][ T90] ? printk_get_next_message+0x2fe/0x7d0 [ 15.048775][ T90] ? rcu_read_lock_any_held+0x3c/0x90 [ 15.048778][ T90] ? validate_chain+0x38b/0xc20 [ 15.048782][ T90] hvc_console_print+0x292/0x780 [ 15.048784][ T90] ? __lock_acquire+0x518/0xc20 [ 15.048786][ T90] ? __lock_acquire+0x518/0xc20 [ 15.048790][ T90] ? hvc_write+0x3a0/0x3a0 [ 15.048793][ T90] ? rcu_is_watching+0x16/0xd0 [ 15.048795][ T90] ? lock_acquire+0x13c/0x160 [ 15.048799][ T90] console_emit_next_record+0x252/0x4f0 [ 15.048803][ T90] ? devkmsg_read+0x4e0/0x4e0 [ 15.048807][ T90] ? rcu_is_watching+0x16/0xd0 [ 15.048809][ T90] ? lock_acquire+0x13c/0x160 [ 15.048812][ T90] console_flush_one_record+0x46f/0x710 [ 15.048816][ T90] ? console_emit_next_record+0x4f0/0x4f0 [ 15.048818][ T90] ? __lock_acquire+0x518/0xc20 [ 15.048823][ T90] console_unlock+0xee/0x1f0 [ 15.048825][ T90] ? console_flush_one_record+0x710/0x710 [ 15.048826][ T90] ? rcu_is_watching+0x16/0xd0 [ 15.048828][ T90] ? lock_acquire+0x60/0x160 [ 15.048832][ T90] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.048833][ T90] ? vprintk_emit+0x320/0x3e0 [ 15.048836][ T90] vprintk_emit+0x37c/0x3e0 [ 15.048840][ T90] ? wake_up_klogd_work_func+0x90/0x90 [ 15.048843][ T90] ? __lock_acquire+0x518/0xc20 [ 15.048846][ T90] _printk+0xc7/0x100 [ 15.048849][ T90] ? snapshot_read.cold+0x21/0x21 [ 15.048852][ T90] ? do_raw_spin_lock+0x131/0x280 [ 15.048854][ T90] ? __rwlock_init+0x150/0x150 [ 15.048858][ T90] ? do_raw_spin_lock+0x131/0x280 [ 15.048860][ T90] do_exit.cold+0x82/0x9c [ 15.048864][ T90] ? exit_notify+0x890/0x890 [ 15.048866][ T90] ? __lock_release.isra.0+0x69/0x1a0 [ 15.048868][ T90] ? rcu_is_watching+0x16/0xd0 [ 15.048872][ T90] do_group_exit+0xb8/0x370 [ 15.048875][ T90] __x64_sys_exit_group+0x3c/0x50 [ 15.048877][ T90] x64_sys_call+0x1567/0x1570 [ 15.048879][ T90] do_syscall_64+0xff/0x530 [ 15.048883][ T90] ? common_interrupt+0x5a/0xf0 [ 15.048885][ T90] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.048887][ T90] RIP: 0033:0x7ff0dcf3f1b8 [ 15.048890][ T90] Code: Unable to access opcode bytes at 0x7ff0dcf3f18e. [ 15.048891][ T90] RSP: 002b:00007fff054591f8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.048893][ T90] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff0dcf3f1b8 [ 15.048894][ T90] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.048895][ T90] RBP: 00007fff05459380 R08: 000055f75f6a0668 R09: 0000000000000000 [ 15.048896][ T90] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 15.048897][ T90] R13: 00007ff0dc79d050 R14: 00007ff0dd470d9e R15: 000055f75f4eb720 [ 15.048903][ T90]