[ 10.716676][ T252] ip (252) used greatest stack depth: 23680 bytes left [ 10.716698][ T252] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.716701][ T252] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 252, name: ip [ 10.716704][ T252] preempt_count: 2, expected: 0 [ 10.716705][ T252] RCU nest depth: 0, expected: 0 [ 10.716706][ T252] locks held by ip/252: 5, last CPU#2: [ 10.716709][ T252] #0: ffffffffa18167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.716723][ T252] #1: ffffffffa197ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.716730][ T252] #2: ffffffffa197de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.716736][ T252] #3: ffffffffa189d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.716742][ T252] #4: ffffffffa189d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.716748][ T252] irq event stamp: 23868 [ 10.716749][ T252] hardirqs last enabled at (23867): [] __down_trylock_console_sem+0x86/0xa0 [ 10.716753][ T252] hardirqs last disabled at (23868): [] console_emit_next_record+0x3d4/0x4c0 [ 10.716757][ T252] softirqs last enabled at (23678): [] handle_softirqs+0x67c/0x900 [ 10.716760][ T252] softirqs last disabled at (23673): [] __irq_exit_rcu+0x145/0x1c0 [ 10.716763][ T252] Preemption disabled at: [ 10.716764][ T252] [<0000000000000000>] 0x0 [ 10.716772][ T252] CPU: 2 UID: 0 PID: 252 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.716777][ T252] Tainted: [W]=WARN [ 10.716778][ T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.716780][ T252] Call Trace: [ 10.716782][ T252] [ 10.716785][ T252] dump_stack_lvl+0x6f/0xa0 [ 10.716793][ T252] __might_resched.cold+0x1fe/0x2c1 [ 10.716799][ T252] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.716804][ T252] ? __kmalloc_noprof+0xdb/0x760 [ 10.716811][ T252] __kmalloc_noprof+0x443/0x760 [ 10.716814][ T252] ? alloc_buf.isra.0+0x4b/0x260 [ 10.716824][ T252] ? do_raw_spin_unlock+0x59/0x250 [ 10.716827][ T252] alloc_buf.isra.0+0x4b/0x260 [ 10.716833][ T252] put_chars+0x1e1/0x2f0 [ 10.716837][ T252] ? __send_to_port+0x420/0x420 [ 10.716839][ T252] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.716845][ T252] ? validate_chain+0x38b/0xc20 [ 10.716854][ T252] hvc_console_print+0x292/0x780 [ 10.716866][ T252] ? hvc_write+0x3a0/0x3a0 [ 10.716870][ T252] ? rcu_is_watching+0x16/0xd0 [ 10.716873][ T252] ? lock_acquire+0x13c/0x160 [ 10.716880][ T252] console_emit_next_record+0x22f/0x4c0 [ 10.716887][ T252] ? devkmsg_read+0x4b0/0x4b0 [ 10.716889][ T252] ? console_flush_one_record+0x106/0x710 [ 10.716895][ T252] ? rcu_is_watching+0x16/0xd0 [ 10.716898][ T252] ? lock_acquire+0x13c/0x160 [ 10.716904][ T252] console_flush_one_record+0x46f/0x710 [ 10.716911][ T252] ? console_emit_next_record+0x4c0/0x4c0 [ 10.716914][ T252] ? __lock_acquire+0x518/0xc20 [ 10.716923][ T252] console_unlock+0xee/0x1f0 [ 10.716927][ T252] ? console_flush_one_record+0x710/0x710 [ 10.716930][ T252] ? rcu_is_watching+0x16/0xd0 [ 10.716933][ T252] ? lock_acquire+0xe0/0x160 [ 10.716939][ T252] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.716942][ T252] ? vprintk_emit+0x320/0x3e0 [ 10.716947][ T252] vprintk_emit+0x37c/0x3e0 [ 10.716952][ T252] ? wake_up_klogd_work_func+0x90/0x90 [ 10.716957][ T252] ? __lock_acquire+0x518/0xc20 [ 10.716964][ T252] _printk+0xc7/0x100 [ 10.716969][ T252] ? snapshot_read.cold+0x21/0x21 [ 10.716973][ T252] ? do_raw_spin_lock+0x131/0x280 [ 10.716977][ T252] ? __rwlock_init+0x150/0x150 [ 10.716984][ T252] ? do_raw_spin_lock+0x131/0x280 [ 10.716988][ T252] do_exit.cold+0x82/0x9c [ 10.716993][ T252] ? exit_notify+0x890/0x890 [ 10.716995][ T252] ? __lock_release.isra.0+0x69/0x1a0 [ 10.717000][ T252] ? rcu_is_watching+0x16/0xd0 [ 10.717007][ T252] do_group_exit+0xb8/0x370 [ 10.717012][ T252] __x64_sys_exit_group+0x3c/0x50 [ 10.717014][ T252] x64_sys_call+0x1567/0x1570 [ 10.717018][ T252] do_syscall_64+0xff/0x530 [ 10.717022][ T252] ? exc_page_fault+0xee/0x100 [ 10.717027][ T252] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.717030][ T252] RIP: 0033:0x7f4ae2b041b8 [ 10.717034][ T252] Code: Unable to access opcode bytes at 0x7f4ae2b0418e. [ 10.717035][ T252] RSP: 002b:00007fffc4405298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.717039][ T252] RAX: ffffffffffffffda RBX: 00007f4ae2c34f88 RCX: 00007f4ae2b041b8 [ 10.717041][ T252] RDX: 00007f4ae284efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.717042][ T252] RBP: 00007fffc44052f0 R08: 0000000000000000 R09: 0000000000000050 [ 10.717044][ T252] R10: 00007fffc44050b0 R11: 0000000000000246 R12: 0000000000000001 [ 10.717045][ T252] R13: 0000000000000000 R14: 00007f4ae2c33680 R15: 00007f4ae2c34fa0 [ 10.717058][ T252]