[ 9.676999][ T196] ip (196) used greatest stack depth: 24160 bytes left [ 9.677014][ T196] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.677016][ T196] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 196, name: ip [ 9.677018][ T196] preempt_count: 2, expected: 0 [ 9.677019][ T196] RCU nest depth: 0, expected: 0 [ 9.677020][ T196] locks held by ip/196: 5, last CPU#2: [ 9.677022][ T196] #0: ffffffffa0a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.677033][ T196] #1: ffffffffa0b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.677038][ T196] #2: ffffffffa0b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.677043][ T196] #3: ffffffffa0a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.677046][ T196] #4: ffffffffa0a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.677050][ T196] irq event stamp: 21620 [ 9.677051][ T196] hardirqs last enabled at (21619): [] __down_trylock_console_sem+0x86/0xa0 [ 9.677054][ T196] hardirqs last disabled at (21620): [] console_emit_next_record+0x3d4/0x4c0 [ 9.677056][ T196] softirqs last enabled at (21408): [] handle_softirqs+0x67c/0x900 [ 9.677059][ T196] softirqs last disabled at (21401): [] __irq_exit_rcu+0x145/0x1c0 [ 9.677061][ T196] Preemption disabled at: [ 9.677062][ T196] [<0000000000000000>] 0x0 [ 9.677069][ T196] CPU: 2 UID: 0 PID: 196 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.677072][ T196] Tainted: [W]=WARN [ 9.677073][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.677075][ T196] Call Trace: [ 9.677077][ T196] [ 9.677078][ T196] dump_stack_lvl+0x6f/0xa0 [ 9.677085][ T196] __might_resched.cold+0x1fe/0x2c1 [ 9.677089][ T196] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.677093][ T196] ? __kmalloc_noprof+0xdb/0x760 [ 9.677098][ T196] __kmalloc_noprof+0x443/0x760 [ 9.677100][ T196] ? alloc_buf.isra.0+0x4b/0x260 [ 9.677107][ T196] ? do_raw_spin_unlock+0x59/0x250 [ 9.677109][ T196] alloc_buf.isra.0+0x4b/0x260 [ 9.677113][ T196] put_chars+0x1e1/0x2f0 [ 9.677115][ T196] ? __send_to_port+0x420/0x420 [ 9.677117][ T196] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.677120][ T196] ? validate_chain+0x38b/0xc20 [ 9.677126][ T196] hvc_console_print+0x292/0x780 [ 9.677133][ T196] ? hvc_write+0x3a0/0x3a0 [ 9.677136][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.677138][ T196] ? lock_acquire+0x13c/0x160 [ 9.677142][ T196] console_emit_next_record+0x22f/0x4c0 [ 9.677146][ T196] ? devkmsg_read+0x4b0/0x4b0 [ 9.677148][ T196] ? console_flush_one_record+0x106/0x710 [ 9.677151][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.677153][ T196] ? lock_acquire+0x13c/0x160 [ 9.677157][ T196] console_flush_one_record+0x46f/0x710 [ 9.677161][ T196] ? console_emit_next_record+0x4c0/0x4c0 [ 9.677163][ T196] ? __lock_acquire+0x518/0xc20 [ 9.677168][ T196] console_unlock+0xee/0x1f0 [ 9.677171][ T196] ? console_flush_one_record+0x710/0x710 [ 9.677173][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.677175][ T196] ? lock_acquire+0xe0/0x160 [ 9.677178][ T196] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.677180][ T196] ? vprintk_emit+0x320/0x3e0 [ 9.677183][ T196] vprintk_emit+0x37c/0x3e0 [ 9.677186][ T196] ? wake_up_klogd_work_func+0x90/0x90 [ 9.677189][ T196] ? __lock_acquire+0x518/0xc20 [ 9.677193][ T196] _printk+0xc7/0x100 [ 9.677197][ T196] ? snapshot_read.cold+0x21/0x21 [ 9.677199][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.677202][ T196] ? __rwlock_init+0x150/0x150 [ 9.677206][ T196] ? do_raw_spin_lock+0x131/0x280 [ 9.677209][ T196] do_exit.cold+0x82/0x9c [ 9.677213][ T196] ? exit_notify+0x890/0x890 [ 9.677214][ T196] ? __lock_release.isra.0+0x69/0x1a0 [ 9.677217][ T196] ? rcu_is_watching+0x16/0xd0 [ 9.677220][ T196] do_group_exit+0xb8/0x370 [ 9.677223][ T196] __x64_sys_exit_group+0x3c/0x50 [ 9.677225][ T196] x64_sys_call+0x1567/0x1570 [ 9.677228][ T196] do_syscall_64+0xff/0x530 [ 9.677232][ T196] ? exc_page_fault+0xee/0x100 [ 9.677234][ T196] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.677237][ T196] RIP: 0033:0x7f5d7aa3d1b8 [ 9.677239][ T196] Code: Unable to access opcode bytes at 0x7f5d7aa3d18e. [ 9.677240][ T196] RSP: 002b:00007ffeae956fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.677242][ T196] RAX: ffffffffffffffda RBX: 00007f5d7ab6df88 RCX: 00007f5d7aa3d1b8 [ 9.677244][ T196] RDX: 00007f5d7a787fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.677245][ T196] RBP: 00007ffeae957040 R08: 0000000000000000 R09: 0000000000000050 [ 9.677245][ T196] R10: 00007ffeae956e00 R11: 0000000000000246 R12: 0000000000000001 [ 9.677246][ T196] R13: 0000000000000000 R14: 00007f5d7ab6c680 R15: 00007f5d7ab6dfa0 [ 9.677253][ T196]