[ 10.078453][ T184] ip (184) used greatest stack depth: 24384 bytes left [ 10.078471][ T184] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.078473][ T184] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 184, name: ip [ 10.078475][ T184] preempt_count: 2, expected: 0 [ 10.078476][ T184] RCU nest depth: 0, expected: 0 [ 10.078477][ T184] locks held by ip/184: 5, last CPU#2: [ 10.078479][ T184] #0: ffffffff9de02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.078490][ T184] #1: ffffffff9df6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.078495][ T184] #2: ffffffff9df6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.078499][ T184] #3: ffffffff9de89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.078502][ T184] #4: ffffffff9de89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.078505][ T184] irq event stamp: 46448 [ 10.078506][ T184] hardirqs last enabled at (46447): [] __down_trylock_console_sem+0x86/0xa0 [ 10.078509][ T184] hardirqs last disabled at (46448): [] console_emit_next_record+0x3d4/0x4c0 [ 10.078511][ T184] softirqs last enabled at (45280): [] handle_softirqs+0x67c/0x900 [ 10.078513][ T184] softirqs last disabled at (43715): [] __irq_exit_rcu+0x145/0x1c0 [ 10.078516][ T184] Preemption disabled at: [ 10.078516][ T184] [<0000000000000000>] 0x0 [ 10.078523][ T184] CPU: 2 UID: 0 PID: 184 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.078526][ T184] Tainted: [W]=WARN [ 10.078527][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.078528][ T184] Call Trace: [ 10.078530][ T184] [ 10.078532][ T184] dump_stack_lvl+0x6f/0xa0 [ 10.078537][ T184] __might_resched.cold+0x1fe/0x2c1 [ 10.078542][ T184] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.078545][ T184] ? __kmalloc_noprof+0xdb/0x760 [ 10.078551][ T184] __kmalloc_noprof+0x443/0x760 [ 10.078554][ T184] ? alloc_buf.isra.0+0x4b/0x260 [ 10.078561][ T184] ? do_raw_spin_unlock+0x59/0x250 [ 10.078564][ T184] alloc_buf.isra.0+0x4b/0x260 [ 10.078568][ T184] put_chars+0x1e1/0x2f0 [ 10.078571][ T184] ? __send_to_port+0x420/0x420 [ 10.078579][ T184] hvc_console_print+0x292/0x780 [ 10.078587][ T184] ? hvc_write+0x3a0/0x3a0 [ 10.078590][ T184] ? lock_acquire+0x13c/0x160 [ 10.078595][ T184] console_emit_next_record+0x22f/0x4c0 [ 10.078599][ T184] ? devkmsg_read+0x4b0/0x4b0 [ 10.078601][ T184] ? console_flush_one_record+0x106/0x710 [ 10.078604][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.078607][ T184] ? lock_acquire+0x13c/0x160 [ 10.078612][ T184] console_flush_one_record+0x46f/0x710 [ 10.078617][ T184] ? console_emit_next_record+0x4c0/0x4c0 [ 10.078618][ T184] ? __lock_acquire+0x518/0xc20 [ 10.078625][ T184] console_unlock+0xee/0x1f0 [ 10.078627][ T184] ? console_flush_one_record+0x710/0x710 [ 10.078628][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.078631][ T184] ? lock_acquire+0x60/0x160 [ 10.078635][ T184] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.078637][ T184] ? vprintk_emit+0x320/0x3e0 [ 10.078641][ T184] vprintk_emit+0x37c/0x3e0 [ 10.078644][ T184] ? wake_up_klogd_work_func+0x90/0x90 [ 10.078648][ T184] ? __lock_acquire+0x518/0xc20 [ 10.078652][ T184] _printk+0xc7/0x100 [ 10.078656][ T184] ? snapshot_read.cold+0x21/0x21 [ 10.078659][ T184] ? do_raw_spin_lock+0x131/0x280 [ 10.078662][ T184] ? __rwlock_init+0x150/0x150 [ 10.078667][ T184] ? do_raw_spin_lock+0x131/0x280 [ 10.078670][ T184] do_exit.cold+0x82/0x9c [ 10.078674][ T184] ? exit_notify+0x890/0x890 [ 10.078676][ T184] ? __lock_release.isra.0+0x69/0x1a0 [ 10.078679][ T184] ? rcu_is_watching+0x16/0xd0 [ 10.078684][ T184] do_group_exit+0xb8/0x370 [ 10.078687][ T184] __x64_sys_exit_group+0x3c/0x50 [ 10.078690][ T184] x64_sys_call+0x1567/0x1570 [ 10.078692][ T184] do_syscall_64+0x10e/0x570 [ 10.078696][ T184] ? exc_page_fault+0xee/0x100 [ 10.078699][ T184] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.078702][ T184] RIP: 0033:0x7f74176501b8 [ 10.078704][ T184] Code: Unable to access opcode bytes at 0x7f741765018e. [ 10.078705][ T184] RSP: 002b:00007ffcb0f1a6c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.078707][ T184] RAX: ffffffffffffffda RBX: 00007f7417780f88 RCX: 00007f74176501b8 [ 10.078709][ T184] RDX: 00007f741739afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.078710][ T184] RBP: 00007ffcb0f1a720 R08: 0000000000000000 R09: 0000000000008010 [ 10.078710][ T184] R10: 00007ffcb0f1a4e0 R11: 0000000000000246 R12: 0000000000000001 [ 10.078711][ T184] R13: 0000000000000000 R14: 00007f741777f680 R15: 00007f7417780fa0 [ 10.078720][ T184]