[ 9.953799][ T231] ip (231) used greatest stack depth: 24048 bytes left [ 9.953814][ T231] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.953816][ T231] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 231, name: ip [ 9.953818][ T231] preempt_count: 2, expected: 0 [ 9.953819][ T231] RCU nest depth: 0, expected: 0 [ 9.953820][ T231] locks held by ip/231: 5, last CPU#1: [ 9.953821][ T231] #0: ffffffff8b4167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.953833][ T231] #1: ffffffff8b57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.953838][ T231] #2: ffffffff8b57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.953842][ T231] #3: ffffffff8b49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.953845][ T231] #4: ffffffff8b49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.953849][ T231] irq event stamp: 48472 [ 9.953850][ T231] hardirqs last enabled at (48471): [] __down_trylock_console_sem+0x86/0xa0 [ 9.953853][ T231] hardirqs last disabled at (48472): [] console_emit_next_record+0x3d4/0x4c0 [ 9.953856][ T231] softirqs last enabled at (48228): [] handle_softirqs+0x67c/0x900 [ 9.953858][ T231] softirqs last disabled at (48223): [] __irq_exit_rcu+0x145/0x1c0 [ 9.953861][ T231] Preemption disabled at: [ 9.953862][ T231] [<0000000000000000>] 0x0 [ 9.953869][ T231] CPU: 1 UID: 0 PID: 231 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.953872][ T231] Tainted: [W]=WARN [ 9.953873][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.953875][ T231] Call Trace: [ 9.953876][ T231] [ 9.953878][ T231] dump_stack_lvl+0x6f/0xa0 [ 9.953885][ T231] __might_resched.cold+0x1fe/0x2c1 [ 9.953889][ T231] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.953894][ T231] ? __kmalloc_noprof+0xdb/0x760 [ 9.953902][ T231] __kmalloc_noprof+0x443/0x760 [ 9.953904][ T231] ? alloc_buf.isra.0+0x4b/0x260 [ 9.953912][ T231] ? do_raw_spin_unlock+0x59/0x250 [ 9.953915][ T231] alloc_buf.isra.0+0x4b/0x260 [ 9.953919][ T231] put_chars+0x1e1/0x2f0 [ 9.953921][ T231] ? __send_to_port+0x420/0x420 [ 9.953923][ T231] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.953926][ T231] ? validate_chain+0x38b/0xc20 [ 9.953931][ T231] hvc_console_print+0x292/0x780 [ 9.953939][ T231] ? hvc_write+0x3a0/0x3a0 [ 9.953942][ T231] ? rcu_is_watching+0x16/0xd0 [ 9.953944][ T231] ? lock_acquire+0x13c/0x160 [ 9.953948][ T231] console_emit_next_record+0x22f/0x4c0 [ 9.953952][ T231] ? devkmsg_read+0x4b0/0x4b0 [ 9.953954][ T231] ? console_flush_one_record+0x106/0x710 [ 9.953957][ T231] ? rcu_is_watching+0x16/0xd0 [ 9.953959][ T231] ? lock_acquire+0x13c/0x160 [ 9.953963][ T231] console_flush_one_record+0x46f/0x710 [ 9.953967][ T231] ? console_emit_next_record+0x4c0/0x4c0 [ 9.953969][ T231] ? __lock_acquire+0x518/0xc20 [ 9.953975][ T231] console_unlock+0xee/0x1f0 [ 9.953978][ T231] ? console_flush_one_record+0x710/0x710 [ 9.953980][ T231] ? rcu_is_watching+0x16/0xd0 [ 9.953982][ T231] ? lock_acquire+0xe0/0x160 [ 9.953985][ T231] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.953987][ T231] ? vprintk_emit+0x320/0x3e0 [ 9.953990][ T231] vprintk_emit+0x37c/0x3e0 [ 9.953993][ T231] ? wake_up_klogd_work_func+0x90/0x90 [ 9.953996][ T231] ? __lock_acquire+0x518/0xc20 [ 9.954000][ T231] _printk+0xc7/0x100 [ 9.954004][ T231] ? snapshot_read.cold+0x21/0x21 [ 9.954007][ T231] ? do_raw_spin_lock+0x131/0x280 [ 9.954010][ T231] ? __rwlock_init+0x150/0x150 [ 9.954014][ T231] ? do_raw_spin_lock+0x131/0x280 [ 9.954017][ T231] do_exit.cold+0x82/0x9c [ 9.954021][ T231] ? exit_notify+0x890/0x890 [ 9.954022][ T231] ? __lock_release.isra.0+0x69/0x1a0 [ 9.954025][ T231] ? rcu_is_watching+0x16/0xd0 [ 9.954029][ T231] do_group_exit+0xb8/0x370 [ 9.954032][ T231] __x64_sys_exit_group+0x3c/0x50 [ 9.954034][ T231] x64_sys_call+0x1567/0x1570 [ 9.954036][ T231] do_syscall_64+0xff/0x530 [ 9.954040][ T231] ? exc_page_fault+0xee/0x100 [ 9.954043][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.954045][ T231] RIP: 0033:0x7f880c1c51b8 [ 9.954048][ T231] Code: Unable to access opcode bytes at 0x7f880c1c518e. [ 9.954049][ T231] RSP: 002b:00007ffca6967948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.954051][ T231] RAX: ffffffffffffffda RBX: 00007f880c2f5f88 RCX: 00007f880c1c51b8 [ 9.954052][ T231] RDX: 00007f880bf0ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.954053][ T231] RBP: 00007ffca69679a0 R08: 0000000000000000 R09: 0000000000000050 [ 9.954054][ T231] R10: 00007ffca6967760 R11: 0000000000000246 R12: 0000000000000001 [ 9.954055][ T231] R13: 0000000000000000 R14: 00007f880c2f4680 R15: 00007f880c2f5fa0 [ 9.954061][ T231] [ 10.412367][ T250] ip (250) used greatest stack depth: 24016 bytes left