[ 10.645904][ T185] ip (185) used greatest stack depth: 23920 bytes left [ 10.645921][ T185] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.645923][ T185] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 185, name: ip [ 10.645925][ T185] preempt_count: 2, expected: 0 [ 10.645926][ T185] RCU nest depth: 0, expected: 0 [ 10.645927][ T185] locks held by ip/185: 5, last CPU#3: [ 10.645929][ T185] #0: ffffffff9ee02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.645942][ T185] #1: ffffffff9ef6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.645947][ T185] #2: ffffffff9ef6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.645951][ T185] #3: ffffffff9ee89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.645954][ T185] #4: ffffffff9ee89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.645958][ T185] irq event stamp: 30368 [ 10.645959][ T185] hardirqs last enabled at (30367): [] __down_trylock_console_sem+0x86/0xa0 [ 10.645963][ T185] hardirqs last disabled at (30368): [] console_emit_next_record+0x3d4/0x4c0 [ 10.645964][ T185] softirqs last enabled at (29278): [] handle_softirqs+0x67c/0x900 [ 10.645967][ T185] softirqs last disabled at (29273): [] __irq_exit_rcu+0x145/0x1c0 [ 10.645969][ T185] Preemption disabled at: [ 10.645970][ T185] [<0000000000000000>] 0x0 [ 10.645977][ T185] CPU: 3 UID: 0 PID: 185 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.645981][ T185] Tainted: [W]=WARN [ 10.645982][ T185] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.645983][ T185] Call Trace: [ 10.645985][ T185] [ 10.645986][ T185] dump_stack_lvl+0x6f/0xa0 [ 10.645992][ T185] __might_resched.cold+0x1fe/0x2c1 [ 10.645996][ T185] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.646000][ T185] ? __kmalloc_noprof+0xdb/0x760 [ 10.646005][ T185] __kmalloc_noprof+0x443/0x760 [ 10.646007][ T185] ? alloc_buf.isra.0+0x4b/0x260 [ 10.646014][ T185] ? do_raw_spin_unlock+0x59/0x250 [ 10.646017][ T185] alloc_buf.isra.0+0x4b/0x260 [ 10.646021][ T185] put_chars+0x1e1/0x2f0 [ 10.646024][ T185] ? __send_to_port+0x420/0x420 [ 10.646031][ T185] hvc_console_print+0x292/0x780 [ 10.646039][ T185] ? hvc_write+0x3a0/0x3a0 [ 10.646042][ T185] ? lock_acquire+0x13c/0x160 [ 10.646048][ T185] console_emit_next_record+0x22f/0x4c0 [ 10.646051][ T185] ? devkmsg_read+0x4b0/0x4b0 [ 10.646053][ T185] ? console_flush_one_record+0x106/0x710 [ 10.646056][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.646060][ T185] ? lock_acquire+0x13c/0x160 [ 10.646065][ T185] console_flush_one_record+0x46f/0x710 [ 10.646069][ T185] ? console_emit_next_record+0x4c0/0x4c0 [ 10.646071][ T185] ? __lock_acquire+0x518/0xc20 [ 10.646077][ T185] console_unlock+0xee/0x1f0 [ 10.646079][ T185] ? console_flush_one_record+0x710/0x710 [ 10.646081][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.646083][ T185] ? lock_acquire+0x60/0x160 [ 10.646088][ T185] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.646090][ T185] ? vprintk_emit+0x320/0x3e0 [ 10.646093][ T185] vprintk_emit+0x37c/0x3e0 [ 10.646097][ T185] ? wake_up_klogd_work_func+0x90/0x90 [ 10.646103][ T185] _printk+0xc7/0x100 [ 10.646107][ T185] ? snapshot_read.cold+0x21/0x21 [ 10.646110][ T185] ? do_raw_spin_lock+0x131/0x280 [ 10.646114][ T185] ? __rwlock_init+0x150/0x150 [ 10.646118][ T185] ? do_raw_spin_lock+0x131/0x280 [ 10.646122][ T185] do_exit.cold+0x82/0x9c [ 10.646126][ T185] ? exit_notify+0x890/0x890 [ 10.646127][ T185] ? __lock_release.isra.0+0x69/0x1a0 [ 10.646131][ T185] ? rcu_is_watching+0x16/0xd0 [ 10.646135][ T185] do_group_exit+0xb8/0x370 [ 10.646139][ T185] __x64_sys_exit_group+0x3c/0x50 [ 10.646141][ T185] x64_sys_call+0x1567/0x1570 [ 10.646144][ T185] do_syscall_64+0x10e/0x570 [ 10.646148][ T185] ? exc_page_fault+0xee/0x100 [ 10.646152][ T185] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.646154][ T185] RIP: 0033:0x7f954a4511b8 [ 10.646156][ T185] Code: Unable to access opcode bytes at 0x7f954a45118e. [ 10.646158][ T185] RSP: 002b:00007ffe3049f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.646160][ T185] RAX: ffffffffffffffda RBX: 00007f954a581f88 RCX: 00007f954a4511b8 [ 10.646161][ T185] RDX: 00007f954a19bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.646162][ T185] RBP: 00007ffe3049f090 R08: 0000000000000000 R09: 0000000000000000 [ 10.646163][ T185] R10: 00007ffe3049ee50 R11: 0000000000000246 R12: 0000000000000001 [ 10.646164][ T185] R13: 0000000000000000 R14: 00007f954a580680 R15: 00007f954a581fa0 [ 10.646172][ T185]