[ 9.120221][ T177] ip (177) used greatest stack depth: 23712 bytes left [ 9.120238][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.120239][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 9.120241][ T177] preempt_count: 2, expected: 0 [ 9.120242][ T177] RCU nest depth: 0, expected: 0 [ 9.120243][ T177] locks held by ip/177: 5, last CPU#2: [ 9.120245][ T177] #0: ffffffff896027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.120257][ T177] #1: ffffffff89769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.120262][ T177] #2: ffffffff89769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.120265][ T177] #3: ffffffff89689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.120269][ T177] #4: ffffffff89689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.120272][ T177] irq event stamp: 47490 [ 9.120273][ T177] hardirqs last enabled at (47489): [] __down_trylock_console_sem+0x86/0xa0 [ 9.120277][ T177] hardirqs last disabled at (47490): [] console_emit_next_record+0x3d4/0x4c0 [ 9.120278][ T177] softirqs last enabled at (47412): [] handle_softirqs+0x67c/0x900 [ 9.120280][ T177] softirqs last disabled at (47179): [] __irq_exit_rcu+0x145/0x1c0 [ 9.120283][ T177] Preemption disabled at: [ 9.120283][ T177] [<0000000000000000>] 0x0 [ 9.120290][ T177] CPU: 2 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.120294][ T177] Tainted: [W]=WARN [ 9.120295][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.120296][ T177] Call Trace: [ 9.120297][ T177] [ 9.120299][ T177] dump_stack_lvl+0x6f/0xa0 [ 9.120305][ T177] __might_resched.cold+0x1fe/0x2c1 [ 9.120309][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.120312][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 9.120318][ T177] __kmalloc_noprof+0x443/0x760 [ 9.120320][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 9.120327][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 9.120330][ T177] alloc_buf.isra.0+0x4b/0x260 [ 9.120333][ T177] put_chars+0x1e1/0x2f0 [ 9.120336][ T177] ? __send_to_port+0x420/0x420 [ 9.120338][ T177] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.120343][ T177] ? validate_chain+0x38b/0xc20 [ 9.120348][ T177] hvc_console_print+0x292/0x780 [ 9.120355][ T177] ? hvc_write+0x3a0/0x3a0 [ 9.120357][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.120360][ T177] ? lock_acquire+0x13c/0x160 [ 9.120364][ T177] console_emit_next_record+0x22f/0x4c0 [ 9.120367][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 9.120369][ T177] ? console_flush_one_record+0x106/0x710 [ 9.120371][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.120373][ T177] ? lock_acquire+0x13c/0x160 [ 9.120378][ T177] console_flush_one_record+0x46f/0x710 [ 9.120381][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 9.120383][ T177] ? __lock_acquire+0x518/0xc20 [ 9.120388][ T177] console_unlock+0xee/0x1f0 [ 9.120391][ T177] ? console_flush_one_record+0x710/0x710 [ 9.120392][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.120394][ T177] ? lock_acquire+0x60/0x160 [ 9.120398][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.120400][ T177] ? vprintk_emit+0x320/0x3e0 [ 9.120404][ T177] vprintk_emit+0x37c/0x3e0 [ 9.120410][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 9.120415][ T177] ? __lock_acquire+0x518/0xc20 [ 9.120419][ T177] _printk+0xc7/0x100 [ 9.120423][ T177] ? snapshot_read.cold+0x21/0x21 [ 9.120426][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.120428][ T177] ? __rwlock_init+0x150/0x150 [ 9.120433][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.120436][ T177] do_exit.cold+0x82/0x9c [ 9.120439][ T177] ? exit_notify+0x890/0x890 [ 9.120441][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 9.120444][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.120447][ T177] do_group_exit+0xb8/0x370 [ 9.120451][ T177] __x64_sys_exit_group+0x3c/0x50 [ 9.120453][ T177] x64_sys_call+0x1567/0x1570 [ 9.120455][ T177] do_syscall_64+0xff/0x530 [ 9.120465][ T177] ? exc_page_fault+0xee/0x100 [ 9.120468][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.120470][ T177] RIP: 0033:0x7f11f2fd11b8 [ 9.120473][ T177] Code: Unable to access opcode bytes at 0x7f11f2fd118e. [ 9.120474][ T177] RSP: 002b:00007ffe68499508 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.120477][ T177] RAX: ffffffffffffffda RBX: 00007f11f3101f88 RCX: 00007f11f2fd11b8 [ 9.120478][ T177] RDX: 00007f11f2d1bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.120479][ T177] RBP: 00007ffe68499560 R08: 0000000000000000 R09: 0000000000008010 [ 9.120480][ T177] R10: 00007ffe68499320 R11: 0000000000000246 R12: 0000000000000001 [ 9.120480][ T177] R13: 0000000000000000 R14: 00007f11f3100680 R15: 00007f11f3101fa0 [ 9.120487][ T177]