[ 10.053288][ T202] ip (202) used greatest stack depth: 23344 bytes left [ 10.053303][ T202] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.053305][ T202] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 202, name: ip [ 10.053306][ T202] preempt_count: 2, expected: 0 [ 10.053307][ T202] RCU nest depth: 0, expected: 0 [ 10.053308][ T202] locks held by ip/202: 5, last CPU#2: [ 10.053309][ T202] #0: ffffffff94c167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.053320][ T202] #1: ffffffff94d7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.053325][ T202] #2: ffffffff94d7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.053329][ T202] #3: ffffffff94c9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.053333][ T202] #4: ffffffff94c9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.053337][ T202] irq event stamp: 23872 [ 10.053338][ T202] hardirqs last enabled at (23871): [] __down_trylock_console_sem+0x86/0xa0 [ 10.053341][ T202] hardirqs last disabled at (23872): [] console_emit_next_record+0x3d4/0x4c0 [ 10.053343][ T202] softirqs last enabled at (23112): [] handle_softirqs+0x67c/0x900 [ 10.053345][ T202] softirqs last disabled at (23107): [] __irq_exit_rcu+0x145/0x1c0 [ 10.053348][ T202] Preemption disabled at: [ 10.053349][ T202] [<0000000000000000>] 0x0 [ 10.053356][ T202] CPU: 2 UID: 0 PID: 202 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.053359][ T202] Tainted: [W]=WARN [ 10.053360][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.053362][ T202] Call Trace: [ 10.053363][ T202] [ 10.053365][ T202] dump_stack_lvl+0x6f/0xa0 [ 10.053371][ T202] __might_resched.cold+0x1fe/0x2c1 [ 10.053375][ T202] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.053380][ T202] ? __kmalloc_noprof+0xdb/0x760 [ 10.053384][ T202] __kmalloc_noprof+0x443/0x760 [ 10.053386][ T202] ? alloc_buf.isra.0+0x4b/0x260 [ 10.053394][ T202] ? do_raw_spin_unlock+0x59/0x250 [ 10.053396][ T202] alloc_buf.isra.0+0x4b/0x260 [ 10.053400][ T202] put_chars+0x1e1/0x2f0 [ 10.053402][ T202] ? __send_to_port+0x420/0x420 [ 10.053404][ T202] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.053407][ T202] ? validate_chain+0x38b/0xc20 [ 10.053412][ T202] hvc_console_print+0x292/0x780 [ 10.053420][ T202] ? hvc_write+0x3a0/0x3a0 [ 10.053422][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.053424][ T202] ? lock_acquire+0x13c/0x160 [ 10.053428][ T202] console_emit_next_record+0x22f/0x4c0 [ 10.053432][ T202] ? devkmsg_read+0x4b0/0x4b0 [ 10.053433][ T202] ? console_flush_one_record+0x106/0x710 [ 10.053437][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.053439][ T202] ? lock_acquire+0x13c/0x160 [ 10.053442][ T202] console_flush_one_record+0x46f/0x710 [ 10.053446][ T202] ? console_emit_next_record+0x4c0/0x4c0 [ 10.053448][ T202] ? __lock_acquire+0x518/0xc20 [ 10.053453][ T202] console_unlock+0xee/0x1f0 [ 10.053456][ T202] ? console_flush_one_record+0x710/0x710 [ 10.053458][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.053460][ T202] ? lock_acquire+0xe0/0x160 [ 10.053463][ T202] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.053465][ T202] ? vprintk_emit+0x320/0x3e0 [ 10.053468][ T202] vprintk_emit+0x37c/0x3e0 [ 10.053471][ T202] ? wake_up_klogd_work_func+0x90/0x90 [ 10.053474][ T202] ? __lock_acquire+0x518/0xc20 [ 10.053477][ T202] _printk+0xc7/0x100 [ 10.053481][ T202] ? snapshot_read.cold+0x21/0x21 [ 10.053484][ T202] ? do_raw_spin_lock+0x131/0x280 [ 10.053487][ T202] ? __rwlock_init+0x150/0x150 [ 10.053491][ T202] ? do_raw_spin_lock+0x131/0x280 [ 10.053494][ T202] do_exit.cold+0x82/0x9c [ 10.053498][ T202] ? exit_notify+0x890/0x890 [ 10.053499][ T202] ? __lock_release.isra.0+0x69/0x1a0 [ 10.053502][ T202] ? rcu_is_watching+0x16/0xd0 [ 10.053505][ T202] do_group_exit+0xb8/0x370 [ 10.053508][ T202] __x64_sys_exit_group+0x3c/0x50 [ 10.053510][ T202] x64_sys_call+0x1567/0x1570 [ 10.053512][ T202] do_syscall_64+0xff/0x530 [ 10.053517][ T202] ? exc_page_fault+0xee/0x100 [ 10.053519][ T202] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.053521][ T202] RIP: 0033:0x7f36952ed1b8 [ 10.053523][ T202] Code: Unable to access opcode bytes at 0x7f36952ed18e. [ 10.053524][ T202] RSP: 002b:00007fff6897d8b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.053527][ T202] RAX: ffffffffffffffda RBX: 00007f369541df88 RCX: 00007f36952ed1b8 [ 10.053528][ T202] RDX: 00007f3695037fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.053529][ T202] RBP: 00007fff6897d910 R08: 0000000000000000 R09: 0000000000000050 [ 10.053530][ T202] R10: 00007fff6897d6d0 R11: 0000000000000246 R12: 0000000000000001 [ 10.053531][ T202] R13: 0000000000000000 R14: 00007f369541c680 R15: 00007f369541dfa0 [ 10.053538][ T202]