[ 14.978924][ T90] (udev-worker) (90) used greatest stack depth: 22696 bytes left [ 14.978943][ T90] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.978945][ T90] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 90, name: (udev-worker) [ 14.978946][ T90] preempt_count: 2, expected: 0 [ 14.978947][ T90] RCU nest depth: 0, expected: 0 [ 14.978948][ T90] locks held by (udev-worker)/90: 5, last CPU#1: [ 14.978950][ T90] #0: ffffffffaba027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.978963][ T90] #1: ffffffffabb99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.978969][ T90] #2: ffffffffabb99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.978973][ T90] #3: ffffffffaba89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.978976][ T90] #4: ffffffffaba89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 14.978980][ T90] irq event stamp: 401688 [ 14.978981][ T90] hardirqs last enabled at (401687): [] __down_trylock_console_sem+0x86/0xa0 [ 14.978983][ T90] hardirqs last disabled at (401688): [] console_emit_next_record+0x3f8/0x4f0 [ 14.978985][ T90] softirqs last enabled at (401622): [] netlink_release+0x17b/0xcf0 [ 14.978989][ T90] softirqs last disabled at (401620): [] netlink_release+0xd2/0xcf0 [ 14.978992][ T90] Preemption disabled at: [ 14.978992][ T90] [<0000000000000000>] 0x0 [ 14.978999][ T90] CPU: 1 UID: 0 PID: 90 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.979003][ T90] Tainted: [W]=WARN [ 14.979003][ T90] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.979005][ T90] Call Trace: [ 14.979007][ T90] [ 14.979008][ T90] dump_stack_lvl+0x6f/0xa0 [ 14.979014][ T90] __might_resched.cold+0x1fe/0x2c1 [ 14.979019][ T90] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.979022][ T90] ? __kmalloc_noprof+0xdb/0x760 [ 14.979027][ T90] __kmalloc_noprof+0x443/0x760 [ 14.979029][ T90] ? alloc_buf.isra.0+0x4b/0x260 [ 14.979034][ T90] ? do_raw_spin_unlock+0x59/0x250 [ 14.979037][ T90] alloc_buf.isra.0+0x4b/0x260 [ 14.979040][ T90] put_chars+0x1e1/0x2f0 [ 14.979042][ T90] ? __send_to_port+0x420/0x420 [ 14.979044][ T90] ? printk_get_next_message+0x2fe/0x7d0 [ 14.979047][ T90] ? rcu_read_lock_any_held+0x3c/0x90 [ 14.979050][ T90] ? validate_chain+0x38b/0xc20 [ 14.979054][ T90] hvc_console_print+0x292/0x780 [ 14.979057][ T90] ? __lock_acquire+0x518/0xc20 [ 14.979058][ T90] ? __lock_acquire+0x518/0xc20 [ 14.979062][ T90] ? hvc_write+0x3a0/0x3a0 [ 14.979065][ T90] ? rcu_is_watching+0x16/0xd0 [ 14.979068][ T90] ? lock_acquire+0x13c/0x160 [ 14.979072][ T90] console_emit_next_record+0x252/0x4f0 [ 14.979076][ T90] ? devkmsg_read+0x4e0/0x4e0 [ 14.979080][ T90] ? rcu_is_watching+0x16/0xd0 [ 14.979082][ T90] ? lock_acquire+0x13c/0x160 [ 14.979085][ T90] console_flush_one_record+0x46f/0x710 [ 14.979089][ T90] ? console_emit_next_record+0x4f0/0x4f0 [ 14.979091][ T90] ? __lock_acquire+0x518/0xc20 [ 14.979095][ T90] console_unlock+0xee/0x1f0 [ 14.979098][ T90] ? console_flush_one_record+0x710/0x710 [ 14.979100][ T90] ? rcu_is_watching+0x16/0xd0 [ 14.979102][ T90] ? lock_acquire+0x60/0x160 [ 14.979105][ T90] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.979106][ T90] ? vprintk_emit+0x320/0x3e0 [ 14.979109][ T90] vprintk_emit+0x37c/0x3e0 [ 14.979113][ T90] ? wake_up_klogd_work_func+0x90/0x90 [ 14.979116][ T90] ? __lock_acquire+0x518/0xc20 [ 14.979119][ T90] _printk+0xc7/0x100 [ 14.979123][ T90] ? snapshot_read.cold+0x21/0x21 [ 14.979125][ T90] ? do_raw_spin_lock+0x131/0x280 [ 14.979128][ T90] ? __rwlock_init+0x150/0x150 [ 14.979131][ T90] ? do_raw_spin_lock+0x131/0x280 [ 14.979134][ T90] do_exit.cold+0x82/0x9c [ 14.979137][ T90] ? exit_notify+0x890/0x890 [ 14.979139][ T90] ? __lock_release.isra.0+0x69/0x1a0 [ 14.979141][ T90] ? rcu_is_watching+0x16/0xd0 [ 14.979145][ T90] do_group_exit+0xb8/0x370 [ 14.979149][ T90] __x64_sys_exit_group+0x3c/0x50 [ 14.979151][ T90] x64_sys_call+0x1567/0x1570 [ 14.979153][ T90] do_syscall_64+0xff/0x530 [ 14.979156][ T90] ? exc_page_fault+0xee/0x100 [ 14.979160][ T90] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.979162][ T90] RIP: 0033:0x7f939d3b61b8 [ 14.979164][ T90] Code: Unable to access opcode bytes at 0x7f939d3b618e. [ 14.979165][ T90] RSP: 002b:00007ffed159dce8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.979168][ T90] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f939d3b61b8 [ 14.979169][ T90] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.979170][ T90] RBP: 00007ffed159de70 R08: 00005626a46b1718 R09: 0000000000000000 [ 14.979171][ T90] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.979171][ T90] R13: 00007f939cc14050 R14: 00007f939d8e7d9e R15: 00005626a4567eb0 [ 14.979178][ T90]