[ 9.247761][ T201] ip (201) used greatest stack depth: 24432 bytes left [ 9.247777][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.247779][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: ip [ 9.247781][ T201] preempt_count: 2, expected: 0 [ 9.247782][ T201] RCU nest depth: 0, expected: 0 [ 9.247783][ T201] locks held by ip/201: 5, last CPU#1: [ 9.247784][ T201] #0: ffffffff8e4167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.247796][ T201] #1: ffffffff8e57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.247800][ T201] #2: ffffffff8e57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.247805][ T201] #3: ffffffff8e49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.247808][ T201] #4: ffffffff8e49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.247813][ T201] irq event stamp: 22166 [ 9.247813][ T201] hardirqs last enabled at (22165): [] __down_trylock_console_sem+0x86/0xa0 [ 9.247816][ T201] hardirqs last disabled at (22166): [] console_emit_next_record+0x3d4/0x4c0 [ 9.247819][ T201] softirqs last enabled at (22160): [] handle_softirqs+0x67c/0x900 [ 9.247820][ T201] softirqs last disabled at (22155): [] __irq_exit_rcu+0x145/0x1c0 [ 9.247823][ T201] Preemption disabled at: [ 9.247824][ T201] [<0000000000000000>] 0x0 [ 9.247830][ T201] CPU: 1 UID: 0 PID: 201 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.247833][ T201] Tainted: [W]=WARN [ 9.247834][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.247836][ T201] Call Trace: [ 9.247837][ T201] [ 9.247839][ T201] dump_stack_lvl+0x6f/0xa0 [ 9.247845][ T201] __might_resched.cold+0x1fe/0x2c1 [ 9.247850][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.247854][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 9.247859][ T201] __kmalloc_noprof+0x443/0x760 [ 9.247860][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 9.247867][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 9.247870][ T201] alloc_buf.isra.0+0x4b/0x260 [ 9.247874][ T201] put_chars+0x1e1/0x2f0 [ 9.247876][ T201] ? __send_to_port+0x420/0x420 [ 9.247877][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.247881][ T201] ? validate_chain+0x38b/0xc20 [ 9.247886][ T201] hvc_console_print+0x292/0x780 [ 9.247893][ T201] ? hvc_write+0x3a0/0x3a0 [ 9.247902][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.247903][ T201] ? lock_acquire+0x13c/0x160 [ 9.247907][ T201] console_emit_next_record+0x22f/0x4c0 [ 9.247912][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 9.247913][ T201] ? console_flush_one_record+0x106/0x710 [ 9.247917][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.247919][ T201] ? lock_acquire+0x13c/0x160 [ 9.247922][ T201] console_flush_one_record+0x46f/0x710 [ 9.247927][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 9.247929][ T201] ? __lock_acquire+0x518/0xc20 [ 9.247934][ T201] console_unlock+0xee/0x1f0 [ 9.247937][ T201] ? console_flush_one_record+0x710/0x710 [ 9.247939][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.247940][ T201] ? lock_acquire+0xe0/0x160 [ 9.247944][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.247946][ T201] ? vprintk_emit+0x320/0x3e0 [ 9.247949][ T201] vprintk_emit+0x37c/0x3e0 [ 9.247952][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 9.247955][ T201] ? __lock_acquire+0x518/0xc20 [ 9.247958][ T201] _printk+0xc7/0x100 [ 9.247962][ T201] ? snapshot_read.cold+0x21/0x21 [ 9.247965][ T201] ? do_raw_spin_lock+0x131/0x280 [ 9.247967][ T201] ? __rwlock_init+0x150/0x150 [ 9.247971][ T201] ? do_raw_spin_lock+0x131/0x280 [ 9.247974][ T201] do_exit.cold+0x82/0x9c [ 9.247978][ T201] ? exit_notify+0x890/0x890 [ 9.247979][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 9.247982][ T201] ? rcu_is_watching+0x16/0xd0 [ 9.247985][ T201] do_group_exit+0xb8/0x370 [ 9.247988][ T201] __x64_sys_exit_group+0x3c/0x50 [ 9.247990][ T201] x64_sys_call+0x1567/0x1570 [ 9.247992][ T201] do_syscall_64+0xff/0x530 [ 9.247996][ T201] ? exc_page_fault+0xee/0x100 [ 9.247999][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.248001][ T201] RIP: 0033:0x7f55717171b8 [ 9.248003][ T201] Code: Unable to access opcode bytes at 0x7f557171718e. [ 9.248004][ T201] RSP: 002b:00007ffc37fe6af8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.248007][ T201] RAX: ffffffffffffffda RBX: 00007f5571847f88 RCX: 00007f55717171b8 [ 9.248008][ T201] RDX: 00007f5571461fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.248009][ T201] RBP: 00007ffc37fe6b50 R08: 0000000000000000 R09: 0000000000000050 [ 9.248010][ T201] R10: 00007ffc37fe6910 R11: 0000000000000246 R12: 0000000000000001 [ 9.248011][ T201] R13: 0000000000000000 R14: 00007f5571846680 R15: 00007f5571847fa0 [ 9.248017][ T201]