[ 9.412422][ T182] ip (182) used greatest stack depth: 23664 bytes left [ 9.412438][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.412440][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: ip [ 9.412441][ T182] preempt_count: 2, expected: 0 [ 9.412442][ T182] RCU nest depth: 0, expected: 0 [ 9.412443][ T182] locks held by ip/182: 5, last CPU#3: [ 9.412445][ T182] #0: ffffffffada02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.412457][ T182] #1: ffffffffadb6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.412462][ T182] #2: ffffffffadb6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.412465][ T182] #3: ffffffffada89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.412469][ T182] #4: ffffffffada89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.412472][ T182] irq event stamp: 23674 [ 9.412473][ T182] hardirqs last enabled at (23673): [] __down_trylock_console_sem+0x86/0xa0 [ 9.412476][ T182] hardirqs last disabled at (23674): [] console_emit_next_record+0x3d4/0x4c0 [ 9.412477][ T182] softirqs last enabled at (22592): [] handle_softirqs+0x67c/0x900 [ 9.412480][ T182] softirqs last disabled at (22587): [] __irq_exit_rcu+0x145/0x1c0 [ 9.412482][ T182] Preemption disabled at: [ 9.412483][ T182] [<0000000000000000>] 0x0 [ 9.412489][ T182] CPU: 3 UID: 0 PID: 182 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.412493][ T182] Tainted: [W]=WARN [ 9.412494][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.412495][ T182] Call Trace: [ 9.412497][ T182] [ 9.412498][ T182] dump_stack_lvl+0x6f/0xa0 [ 9.412504][ T182] __might_resched.cold+0x1fe/0x2c1 [ 9.412508][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.412511][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 9.412516][ T182] __kmalloc_noprof+0x443/0x760 [ 9.412519][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 9.412525][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 9.412528][ T182] alloc_buf.isra.0+0x4b/0x260 [ 9.412531][ T182] put_chars+0x1e1/0x2f0 [ 9.412534][ T182] ? __send_to_port+0x420/0x420 [ 9.412541][ T182] hvc_console_print+0x292/0x780 [ 9.412548][ T182] ? hvc_write+0x3a0/0x3a0 [ 9.412550][ T182] ? lock_acquire+0x13c/0x160 [ 9.412555][ T182] console_emit_next_record+0x22f/0x4c0 [ 9.412558][ T182] ? devkmsg_read+0x4b0/0x4b0 [ 9.412559][ T182] ? console_flush_one_record+0x106/0x710 [ 9.412562][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.412565][ T182] ? lock_acquire+0x13c/0x160 [ 9.412569][ T182] console_flush_one_record+0x46f/0x710 [ 9.412573][ T182] ? console_emit_next_record+0x4c0/0x4c0 [ 9.412574][ T182] ? __lock_acquire+0x518/0xc20 [ 9.412579][ T182] console_unlock+0xee/0x1f0 [ 9.412582][ T182] ? console_flush_one_record+0x710/0x710 [ 9.412583][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.412585][ T182] ? lock_acquire+0x60/0x160 [ 9.412588][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.412590][ T182] ? vprintk_emit+0x320/0x3e0 [ 9.412593][ T182] vprintk_emit+0x37c/0x3e0 [ 9.412596][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 9.412599][ T182] ? __lock_acquire+0x518/0xc20 [ 9.412603][ T182] _printk+0xc7/0x100 [ 9.412606][ T182] ? snapshot_read.cold+0x21/0x21 [ 9.412609][ T182] ? do_raw_spin_lock+0x131/0x280 [ 9.412612][ T182] ? __rwlock_init+0x150/0x150 [ 9.412615][ T182] ? do_raw_spin_lock+0x131/0x280 [ 9.412618][ T182] do_exit.cold+0x82/0x9c [ 9.412622][ T182] ? exit_notify+0x890/0x890 [ 9.412624][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 9.412626][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.412630][ T182] do_group_exit+0xb8/0x370 [ 9.412633][ T182] __x64_sys_exit_group+0x3c/0x50 [ 9.412635][ T182] x64_sys_call+0x1567/0x1570 [ 9.412638][ T182] do_syscall_64+0x10e/0x570 [ 9.412641][ T182] ? exc_page_fault+0xee/0x100 [ 9.412644][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.412646][ T182] RIP: 0033:0x7f786b1e01b8 [ 9.412648][ T182] Code: Unable to access opcode bytes at 0x7f786b1e018e. [ 9.412649][ T182] RSP: 002b:00007ffe4c8f8908 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.412652][ T182] RAX: ffffffffffffffda RBX: 00007f786b310f88 RCX: 00007f786b1e01b8 [ 9.412653][ T182] RDX: 00007f786af2afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.412654][ T182] RBP: 00007ffe4c8f8960 R08: 0000000000000000 R09: 0000000000000050 [ 9.412655][ T182] R10: 00007ffe4c8f8720 R11: 0000000000000246 R12: 0000000000000001 [ 9.412656][ T182] R13: 0000000000000000 R14: 00007f786b30f680 R15: 00007f786b310fa0 [ 9.412662][ T182]