[ 9.460593][ T194] ip (194) used greatest stack depth: 23632 bytes left [ 9.460608][ T194] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.460610][ T194] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 194, name: ip [ 9.460612][ T194] preempt_count: 2, expected: 0 [ 9.460613][ T194] RCU nest depth: 0, expected: 0 [ 9.460613][ T194] locks held by ip/194: 5, last CPU#3: [ 9.460616][ T194] #0: ffffffffae6267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.460629][ T194] #1: ffffffffae78dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.460634][ T194] #2: ffffffffae78dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.460638][ T194] #3: ffffffffae6ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.460642][ T194] #4: ffffffffae6ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.460646][ T194] irq event stamp: 29738 [ 9.460646][ T194] hardirqs last enabled at (29737): [] __down_trylock_console_sem+0x86/0xa0 [ 9.460648][ T194] hardirqs last disabled at (29738): [] console_emit_next_record+0x3d4/0x4c0 [ 9.460650][ T194] softirqs last enabled at (28210): [] handle_softirqs+0x67c/0x900 [ 9.460652][ T194] softirqs last disabled at (28205): [] __irq_exit_rcu+0x145/0x1c0 [ 9.460654][ T194] Preemption disabled at: [ 9.460655][ T194] [<0000000000000000>] 0x0 [ 9.460662][ T194] CPU: 3 UID: 0 PID: 194 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.460665][ T194] Tainted: [W]=WARN [ 9.460666][ T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.460668][ T194] Call Trace: [ 9.460669][ T194] [ 9.460671][ T194] dump_stack_lvl+0x6f/0xa0 [ 9.460677][ T194] __might_resched.cold+0x1fe/0x2c1 [ 9.460682][ T194] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.460686][ T194] ? __kmalloc_noprof+0xdb/0x760 [ 9.460690][ T194] __kmalloc_noprof+0x443/0x760 [ 9.460692][ T194] ? alloc_buf.isra.0+0x4b/0x260 [ 9.460699][ T194] ? do_raw_spin_unlock+0x59/0x250 [ 9.460701][ T194] alloc_buf.isra.0+0x4b/0x260 [ 9.460705][ T194] put_chars+0x1e1/0x2f0 [ 9.460709][ T194] ? __send_to_port+0x420/0x420 [ 9.460711][ T194] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.460715][ T194] ? validate_chain+0x38b/0xc20 [ 9.460720][ T194] hvc_console_print+0x292/0x780 [ 9.460728][ T194] ? hvc_write+0x3a0/0x3a0 [ 9.460730][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.460733][ T194] ? lock_acquire+0x13c/0x160 [ 9.460736][ T194] console_emit_next_record+0x22f/0x4c0 [ 9.460740][ T194] ? devkmsg_read+0x4b0/0x4b0 [ 9.460742][ T194] ? console_flush_one_record+0x106/0x710 [ 9.460745][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.460747][ T194] ? lock_acquire+0x13c/0x160 [ 9.460750][ T194] console_flush_one_record+0x46f/0x710 [ 9.460754][ T194] ? console_emit_next_record+0x4c0/0x4c0 [ 9.460756][ T194] ? __lock_acquire+0x518/0xc20 [ 9.460761][ T194] console_unlock+0xee/0x1f0 [ 9.460763][ T194] ? console_flush_one_record+0x710/0x710 [ 9.460765][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.460767][ T194] ? lock_acquire+0x60/0x160 [ 9.460770][ T194] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.460772][ T194] ? vprintk_emit+0x320/0x3e0 [ 9.460775][ T194] vprintk_emit+0x37c/0x3e0 [ 9.460778][ T194] ? wake_up_klogd_work_func+0x90/0x90 [ 9.460782][ T194] ? __lock_acquire+0x518/0xc20 [ 9.460785][ T194] _printk+0xc7/0x100 [ 9.460789][ T194] ? snapshot_read.cold+0x21/0x21 [ 9.460792][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.460794][ T194] ? __rwlock_init+0x150/0x150 [ 9.460798][ T194] ? do_raw_spin_lock+0x131/0x280 [ 9.460800][ T194] do_exit.cold+0x82/0x9c [ 9.460804][ T194] ? exit_notify+0x890/0x890 [ 9.460806][ T194] ? __lock_release.isra.0+0x69/0x1a0 [ 9.460808][ T194] ? rcu_is_watching+0x16/0xd0 [ 9.460812][ T194] do_group_exit+0xb8/0x370 [ 9.460815][ T194] __x64_sys_exit_group+0x3c/0x50 [ 9.460818][ T194] x64_sys_call+0x1567/0x1570 [ 9.460820][ T194] do_syscall_64+0xff/0x530 [ 9.460823][ T194] ? exc_page_fault+0xee/0x100 [ 9.460829][ T194] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.460831][ T194] RIP: 0033:0x7f9e489661b8 [ 9.460834][ T194] Code: Unable to access opcode bytes at 0x7f9e4896618e. [ 9.460835][ T194] RSP: 002b:00007fff39ed7e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.460837][ T194] RAX: ffffffffffffffda RBX: 00007f9e48a96f88 RCX: 00007f9e489661b8 [ 9.460839][ T194] RDX: 00007f9e486b0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.460840][ T194] RBP: 00007fff39ed7e70 R08: 0000000000000000 R09: 0000000000000050 [ 9.460840][ T194] R10: 00007fff39ed7c30 R11: 0000000000000246 R12: 0000000000000001 [ 9.460841][ T194] R13: 0000000000000000 R14: 00007f9e48a95680 R15: 00007f9e48a96fa0 [ 9.460848][ T194]