[ 14.666918][ T89] (udev-worker) (89) used greatest stack depth: 22696 bytes left [ 14.666938][ T89] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.666940][ T89] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 89, name: (udev-worker) [ 14.666942][ T89] preempt_count: 2, expected: 0 [ 14.666943][ T89] RCU nest depth: 0, expected: 0 [ 14.666943][ T89] locks held by (udev-worker)/89: 5, last CPU#2: [ 14.666945][ T89] #0: ffffffff8ea027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.666958][ T89] #1: ffffffff8eb69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.666964][ T89] #2: ffffffff8eb69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.666968][ T89] #3: ffffffff8ea89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.666971][ T89] #4: ffffffff8ea89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.666975][ T89] irq event stamp: 448858 [ 14.666976][ T89] hardirqs last enabled at (448857): [] __down_trylock_console_sem+0x86/0xa0 [ 14.666978][ T89] hardirqs last disabled at (448858): [] console_emit_next_record+0x3d4/0x4c0 [ 14.666980][ T89] softirqs last enabled at (448794): [] netlink_release+0x17b/0xcf0 [ 14.666984][ T89] softirqs last disabled at (448792): [] netlink_release+0xd2/0xcf0 [ 14.666986][ T89] Preemption disabled at: [ 14.666987][ T89] [<0000000000000000>] 0x0 [ 14.666994][ T89] CPU: 2 UID: 0 PID: 89 Comm: (udev-worker) Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.666997][ T89] Tainted: [W]=WARN [ 14.666998][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.667000][ T89] Call Trace: [ 14.667001][ T89] [ 14.667003][ T89] dump_stack_lvl+0x6f/0xa0 [ 14.667009][ T89] __might_resched.cold+0x1fe/0x2c1 [ 14.667014][ T89] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.667018][ T89] ? __kmalloc_noprof+0xdb/0x760 [ 14.667022][ T89] __kmalloc_noprof+0x443/0x760 [ 14.667025][ T89] ? alloc_buf.isra.0+0x4b/0x260 [ 14.667031][ T89] ? do_raw_spin_unlock+0x59/0x250 [ 14.667033][ T89] alloc_buf.isra.0+0x4b/0x260 [ 14.667037][ T89] put_chars+0x1e1/0x2f0 [ 14.667040][ T89] ? __send_to_port+0x420/0x420 [ 14.667042][ T89] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.667046][ T89] ? validate_chain+0x38b/0xc20 [ 14.667051][ T89] hvc_console_print+0x292/0x780 [ 14.667058][ T89] ? hvc_write+0x3a0/0x3a0 [ 14.667061][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.667063][ T89] ? lock_acquire+0x13c/0x160 [ 14.667067][ T89] console_emit_next_record+0x22f/0x4c0 [ 14.667071][ T89] ? devkmsg_read+0x4b0/0x4b0 [ 14.667072][ T89] ? console_flush_one_record+0x106/0x710 [ 14.667075][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.667077][ T89] ? lock_acquire+0x13c/0x160 [ 14.667081][ T89] console_flush_one_record+0x46f/0x710 [ 14.667085][ T89] ? console_emit_next_record+0x4c0/0x4c0 [ 14.667087][ T89] ? __lock_acquire+0x518/0xc20 [ 14.667094][ T89] console_unlock+0xee/0x1f0 [ 14.667097][ T89] ? console_flush_one_record+0x710/0x710 [ 14.667098][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.667100][ T89] ? lock_acquire+0x60/0x160 [ 14.667104][ T89] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.667105][ T89] ? vprintk_emit+0x320/0x3e0 [ 14.667108][ T89] vprintk_emit+0x37c/0x3e0 [ 14.667112][ T89] ? wake_up_klogd_work_func+0x90/0x90 [ 14.667115][ T89] ? __lock_acquire+0x518/0xc20 [ 14.667119][ T89] _printk+0xc7/0x100 [ 14.667123][ T89] ? snapshot_read.cold+0x21/0x21 [ 14.667125][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.667128][ T89] ? __rwlock_init+0x150/0x150 [ 14.667131][ T89] ? do_raw_spin_lock+0x131/0x280 [ 14.667134][ T89] do_exit.cold+0x82/0x9c [ 14.667138][ T89] ? exit_notify+0x890/0x890 [ 14.667140][ T89] ? __lock_release.isra.0+0x69/0x1a0 [ 14.667142][ T89] ? rcu_is_watching+0x16/0xd0 [ 14.667146][ T89] do_group_exit+0xb8/0x370 [ 14.667150][ T89] __x64_sys_exit_group+0x3c/0x50 [ 14.667152][ T89] x64_sys_call+0x1567/0x1570 [ 14.667154][ T89] do_syscall_64+0xff/0x530 [ 14.667158][ T89] ? irq_exit_rcu+0x1a/0x30 [ 14.667161][ T89] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.667164][ T89] RIP: 0033:0x7f4db9d061b8 [ 14.667166][ T89] Code: Unable to access opcode bytes at 0x7f4db9d0618e. [ 14.667167][ T89] RSP: 002b:00007ffe29068618 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.667170][ T89] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4db9d061b8 [ 14.667171][ T89] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.667172][ T89] RBP: 00007ffe290687a0 R08: 000055c9eae710c8 R09: 0000000000000000 [ 14.667173][ T89] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 [ 14.667174][ T89] R13: 00007f4db9564050 R14: 00007f4dba237d9e R15: 000055c9ead10a50 [ 14.667181][ T89]