[ 9.901333][ T187] ip (187) used greatest stack depth: 23680 bytes left [ 9.901350][ T187] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.901352][ T187] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 187, name: ip [ 9.901354][ T187] preempt_count: 2, expected: 0 [ 9.901355][ T187] RCU nest depth: 0, expected: 0 [ 9.901356][ T187] locks held by ip/187: 5, last CPU#0: [ 9.901358][ T187] #0: ffffffffbb0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.901370][ T187] #1: ffffffffbb169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.901376][ T187] #2: ffffffffbb169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.901380][ T187] #3: ffffffffbb089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.901384][ T187] #4: ffffffffbb089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.901387][ T187] irq event stamp: 36548 [ 9.901388][ T187] hardirqs last enabled at (36547): [] __down_trylock_console_sem+0x86/0xa0 [ 9.901391][ T187] hardirqs last disabled at (36548): [] console_emit_next_record+0x3d4/0x4c0 [ 9.901393][ T187] softirqs last enabled at (36000): [] handle_softirqs+0x67c/0x900 [ 9.901394][ T187] softirqs last disabled at (35991): [] __irq_exit_rcu+0x145/0x1c0 [ 9.901397][ T187] Preemption disabled at: [ 9.901397][ T187] [<0000000000000000>] 0x0 [ 9.901404][ T187] CPU: 0 UID: 0 PID: 187 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.901408][ T187] Tainted: [W]=WARN [ 9.901409][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.901410][ T187] Call Trace: [ 9.901412][ T187] [ 9.901413][ T187] dump_stack_lvl+0x6f/0xa0 [ 9.901419][ T187] __might_resched.cold+0x1fe/0x2c1 [ 9.901424][ T187] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.901428][ T187] ? __kmalloc_noprof+0xdb/0x760 [ 9.901433][ T187] __kmalloc_noprof+0x443/0x760 [ 9.901436][ T187] ? alloc_buf.isra.0+0x4b/0x260 [ 9.901442][ T187] ? do_raw_spin_unlock+0x59/0x250 [ 9.901444][ T187] alloc_buf.isra.0+0x4b/0x260 [ 9.901447][ T187] put_chars+0x1e1/0x2f0 [ 9.901450][ T187] ? __send_to_port+0x420/0x420 [ 9.901451][ T187] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.901456][ T187] ? validate_chain+0x38b/0xc20 [ 9.901461][ T187] hvc_console_print+0x292/0x780 [ 9.901467][ T187] ? hvc_write+0x3a0/0x3a0 [ 9.901469][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.901472][ T187] ? lock_acquire+0x13c/0x160 [ 9.901475][ T187] console_emit_next_record+0x22f/0x4c0 [ 9.901479][ T187] ? devkmsg_read+0x4b0/0x4b0 [ 9.901481][ T187] ? console_flush_one_record+0x106/0x710 [ 9.901484][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.901486][ T187] ? lock_acquire+0x13c/0x160 [ 9.901490][ T187] console_flush_one_record+0x46f/0x710 [ 9.901494][ T187] ? console_emit_next_record+0x4c0/0x4c0 [ 9.901496][ T187] ? __lock_acquire+0x518/0xc20 [ 9.901501][ T187] console_unlock+0xee/0x1f0 [ 9.901504][ T187] ? console_flush_one_record+0x710/0x710 [ 9.901505][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.901508][ T187] ? lock_acquire+0x60/0x160 [ 9.901511][ T187] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.901513][ T187] ? vprintk_emit+0x320/0x3e0 [ 9.901516][ T187] vprintk_emit+0x37c/0x3e0 [ 9.901520][ T187] ? wake_up_klogd_work_func+0x90/0x90 [ 9.901523][ T187] ? __lock_acquire+0x518/0xc20 [ 9.901527][ T187] _printk+0xc7/0x100 [ 9.901530][ T187] ? snapshot_read.cold+0x21/0x21 [ 9.901533][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.901536][ T187] ? __rwlock_init+0x150/0x150 [ 9.901539][ T187] ? do_raw_spin_lock+0x131/0x280 [ 9.901542][ T187] do_exit.cold+0x82/0x9c [ 9.901545][ T187] ? exit_notify+0x890/0x890 [ 9.901547][ T187] ? __lock_release.isra.0+0x69/0x1a0 [ 9.901550][ T187] ? rcu_is_watching+0x16/0xd0 [ 9.901554][ T187] do_group_exit+0xb8/0x370 [ 9.901557][ T187] __x64_sys_exit_group+0x3c/0x50 [ 9.901558][ T187] x64_sys_call+0x1567/0x1570 [ 9.901560][ T187] do_syscall_64+0xff/0x530 [ 9.901564][ T187] ? exc_page_fault+0xee/0x100 [ 9.901567][ T187] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.901569][ T187] RIP: 0033:0x7fe1776611b8 [ 9.901571][ T187] Code: Unable to access opcode bytes at 0x7fe17766118e. [ 9.901573][ T187] RSP: 002b:00007ffc9351b578 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.901575][ T187] RAX: ffffffffffffffda RBX: 00007fe177791f88 RCX: 00007fe1776611b8 [ 9.901576][ T187] RDX: 00007fe1773abfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.901577][ T187] RBP: 00007ffc9351b5d0 R08: 0000000000000000 R09: 0000000000008010 [ 9.901578][ T187] R10: 00007ffc9351b390 R11: 0000000000000246 R12: 0000000000000001 [ 9.901578][ T187] R13: 0000000000000000 R14: 00007fe177790680 R15: 00007fe177791fa0 [ 9.901585][ T187]