[ 9.984955][ T194] ip (194) used greatest stack depth: 23920 bytes left [ 9.984971][ T194] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.984972][ T194] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 194, name: ip [ 9.984974][ T194] preempt_count: 2, expected: 0 [ 9.984975][ T194] RCU nest depth: 0, expected: 0 [ 9.984976][ T194] locks held by ip/194: 5, last CPU#2: [ 9.984978][ T194] #0: ffffffff94602f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 9.984990][ T194] #1: ffffffff9476a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.984995][ T194] #2: ffffffff9476a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.984999][ T194] #3: ffffffff94689de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.985002][ T194] #4: ffffffff94689ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.985005][ T194] irq event stamp: 39308 [ 9.985006][ T194] hardirqs last enabled at (39307): [] __down_trylock_console_sem+0x86/0xa0 [ 9.985009][ T194] hardirqs last disabled at (39308): [] console_emit_next_record+0x3d4/0x4c0 [ 9.985011][ T194] softirqs last enabled at (39038): [] handle_softirqs+0x67c/0x900 [ 9.985013][ T194] softirqs last disabled at (39029): [] __irq_exit_rcu+0x145/0x1c0 [ 9.985016][ T194] Preemption disabled at: [ 9.985016][ T194] [<0000000000000000>] 0x0 [ 9.985023][ T194] CPU: 2 UID: 0 PID: 194 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.985026][ T194] Tainted: [W]=WARN [ 9.985027][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.985029][ T194] Call Trace: [ 9.985031][ T194] [ 9.985032][ T194] dump_stack_lvl+0x6f/0xa0 [ 9.985038][ T194] __might_resched.cold+0x1fe/0x2c1 [ 9.985042][ T194] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.985046][ T194] ? __kmalloc_noprof+0xdb/0x760 [ 9.985051][ T194] __kmalloc_noprof+0x443/0x760 [ 9.985053][ T194] ? alloc_buf.isra.0+0x4b/0x260 [ 9.985060][ T194] ? do_raw_spin_unlock+0x59/0x250 [ 9.985063][ T194] alloc_buf.isra.0+0x4b/0x260 [ 9.985066][ T194] put_chars+0x1e1/0x2f0 [ 9.985069][ T194] ? __send_to_port+0x420/0x420 [ 9.985075][ T194] hvc_console_print+0x292/0x780 [ 9.985082][ T194] ? hvc_write+0x3a0/0x3a0 [ 9.985085][ T194] ? lock_acquire+0x13c/0x160 [ 9.985089][ T194] console_emit_next_record+0x22f/0x4c0 [ 9.985093][ T194] ? devkmsg_read+0x4b0/0x4b0 [ 9.985094][ T194] ? console_flush_one_record+0x106/0x710 [ 9.985096][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.985100][ T194] ? lock_acquire+0x13c/0x160 [ 9.985104][ T194] console_flush_one_record+0x46f/0x710 [ 9.985107][ T194] ? console_emit_next_record+0x4c0/0x4c0 [ 9.985109][ T194] ? __lock_acquire+0x518/0xc20 [ 9.985114][ T194] console_unlock+0xee/0x1f0 [ 9.985116][ T194] ? console_flush_one_record+0x710/0x710 [ 9.985117][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.985119][ T194] ? lock_acquire+0x60/0x160 [ 9.985123][ T194] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.985125][ T194] ? vprintk_emit+0x320/0x3e0 [ 9.985127][ T194] vprintk_emit+0x37c/0x3e0 [ 9.985131][ T194] ? wake_up_klogd_work_func+0x90/0x90 [ 9.985134][ T194] ? __lock_acquire+0x518/0xc20 [ 9.985137][ T194] _printk+0xc7/0x100 [ 9.985141][ T194] ? snapshot_read.cold+0x21/0x21 [ 9.985144][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.985146][ T194] ? __rwlock_init+0x150/0x150 [ 9.985150][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.985153][ T194] do_exit.cold+0x82/0x9c [ 9.985157][ T194] ? exit_notify+0x890/0x890 [ 9.985159][ T194] ? __lock_release.isra.0+0x69/0x1a0 [ 9.985162][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.985165][ T194] do_group_exit+0xb8/0x370 [ 9.985168][ T194] __x64_sys_exit_group+0x3c/0x50 [ 9.985170][ T194] x64_sys_call+0x1567/0x1570 [ 9.985173][ T194] do_syscall_64+0x10e/0x570 [ 9.985177][ T194] ? exc_page_fault+0xee/0x100 [ 9.985180][ T194] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.985182][ T194] RIP: 0033:0x7f091d9fd1b8 [ 9.985185][ T194] Code: Unable to access opcode bytes at 0x7f091d9fd18e. [ 9.985186][ T194] RSP: 002b:00007ffda49a6908 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.985188][ T194] RAX: ffffffffffffffda RBX: 00007f091db2df88 RCX: 00007f091d9fd1b8 [ 9.985189][ T194] RDX: 00007f091d747fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.985190][ T194] RBP: 00007ffda49a6960 R08: 0000000000000000 R09: 0000000000000000 [ 9.985191][ T194] R10: 00007ffda49a6720 R11: 0000000000000246 R12: 0000000000000001 [ 9.985192][ T194] R13: 0000000000000000 R14: 00007f091db2c680 R15: 00007f091db2dfa0 [ 9.985198][ T194]