[ 10.655046][ T208] ip (208) used greatest stack depth: 24560 bytes left [ 10.655066][ T208] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.655068][ T208] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 208, name: ip [ 10.655070][ T208] preempt_count: 2, expected: 0 [ 10.655071][ T208] RCU nest depth: 0, expected: 0 [ 10.655071][ T208] locks held by ip/208: 5, last CPU#3: [ 10.655073][ T208] #0: ffffffff9c8167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.655084][ T208] #1: ffffffff9c97ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.655089][ T208] #2: ffffffff9c97de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.655094][ T208] #3: ffffffff9c89d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.655097][ T208] #4: ffffffff9c89d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.655101][ T208] irq event stamp: 35056 [ 10.655102][ T208] hardirqs last enabled at (35055): [] __down_trylock_console_sem+0x86/0xa0 [ 10.655105][ T208] hardirqs last disabled at (35056): [] console_emit_next_record+0x3d4/0x4c0 [ 10.655107][ T208] softirqs last enabled at (33680): [] handle_softirqs+0x67c/0x900 [ 10.655110][ T208] softirqs last disabled at (32949): [] __irq_exit_rcu+0x145/0x1c0 [ 10.655112][ T208] Preemption disabled at: [ 10.655113][ T208] [<0000000000000000>] 0x0 [ 10.655120][ T208] CPU: 3 UID: 0 PID: 208 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.655123][ T208] Tainted: [W]=WARN [ 10.655124][ T208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.655126][ T208] Call Trace: [ 10.655127][ T208] [ 10.655129][ T208] dump_stack_lvl+0x6f/0xa0 [ 10.655135][ T208] __might_resched.cold+0x1fe/0x2c1 [ 10.655140][ T208] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.655144][ T208] ? __kmalloc_noprof+0xdb/0x760 [ 10.655148][ T208] __kmalloc_noprof+0x443/0x760 [ 10.655150][ T208] ? alloc_buf.isra.0+0x4b/0x260 [ 10.655157][ T208] ? do_raw_spin_unlock+0x59/0x250 [ 10.655160][ T208] alloc_buf.isra.0+0x4b/0x260 [ 10.655164][ T208] put_chars+0x1e1/0x2f0 [ 10.655166][ T208] ? __send_to_port+0x420/0x420 [ 10.655168][ T208] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.655171][ T208] ? validate_chain+0x38b/0xc20 [ 10.655177][ T208] hvc_console_print+0x292/0x780 [ 10.655184][ T208] ? hvc_write+0x3a0/0x3a0 [ 10.655187][ T208] ? rcu_is_watching+0x16/0xd0 [ 10.655189][ T208] ? lock_acquire+0x13c/0x160 [ 10.655193][ T208] console_emit_next_record+0x22f/0x4c0 [ 10.655197][ T208] ? devkmsg_read+0x4b0/0x4b0 [ 10.655199][ T208] ? console_flush_one_record+0x106/0x710 [ 10.655202][ T208] ? rcu_is_watching+0x16/0xd0 [ 10.655204][ T208] ? lock_acquire+0x13c/0x160 [ 10.655208][ T208] console_flush_one_record+0x46f/0x710 [ 10.655217][ T208] ? console_emit_next_record+0x4c0/0x4c0 [ 10.655219][ T208] ? __lock_acquire+0x518/0xc20 [ 10.655224][ T208] console_unlock+0xee/0x1f0 [ 10.655227][ T208] ? console_flush_one_record+0x710/0x710 [ 10.655229][ T208] ? rcu_is_watching+0x16/0xd0 [ 10.655231][ T208] ? lock_acquire+0xe0/0x160 [ 10.655235][ T208] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.655236][ T208] ? vprintk_emit+0x320/0x3e0 [ 10.655239][ T208] vprintk_emit+0x37c/0x3e0 [ 10.655242][ T208] ? wake_up_klogd_work_func+0x90/0x90 [ 10.655245][ T208] ? __lock_acquire+0x518/0xc20 [ 10.655249][ T208] _printk+0xc7/0x100 [ 10.655252][ T208] ? snapshot_read.cold+0x21/0x21 [ 10.655255][ T208] ? do_raw_spin_lock+0x131/0x280 [ 10.655257][ T208] ? __rwlock_init+0x150/0x150 [ 10.655261][ T208] ? do_raw_spin_lock+0x131/0x280 [ 10.655264][ T208] do_exit.cold+0x82/0x9c [ 10.655268][ T208] ? exit_notify+0x890/0x890 [ 10.655269][ T208] ? __lock_release.isra.0+0x69/0x1a0 [ 10.655272][ T208] ? rcu_is_watching+0x16/0xd0 [ 10.655275][ T208] do_group_exit+0xb8/0x370 [ 10.655278][ T208] __x64_sys_exit_group+0x3c/0x50 [ 10.655280][ T208] x64_sys_call+0x1567/0x1570 [ 10.655282][ T208] do_syscall_64+0xff/0x530 [ 10.655287][ T208] ? exc_page_fault+0xee/0x100 [ 10.655290][ T208] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.655292][ T208] RIP: 0033:0x7f6aefb7c1b8 [ 10.655294][ T208] Code: Unable to access opcode bytes at 0x7f6aefb7c18e. [ 10.655295][ T208] RSP: 002b:00007ffd3f6f0a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.655297][ T208] RAX: ffffffffffffffda RBX: 00007f6aefcacf88 RCX: 00007f6aefb7c1b8 [ 10.655299][ T208] RDX: 00007f6aef8c6fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.655300][ T208] RBP: 00007ffd3f6f0aa0 R08: 0000000000000000 R09: 0000000000000050 [ 10.655301][ T208] R10: 00007ffd3f6f0860 R11: 0000000000000246 R12: 0000000000000001 [ 10.655301][ T208] R13: 0000000000000000 R14: 00007f6aefcab680 R15: 00007f6aefcacfa0 [ 10.655308][ T208]