[ 9.040331][ T182] ip (182) used greatest stack depth: 23896 bytes left [ 9.040347][ T182] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.040349][ T182] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 182, name: ip [ 9.040351][ T182] preempt_count: 2, expected: 0 [ 9.040352][ T182] RCU nest depth: 0, expected: 0 [ 9.040353][ T182] locks held by ip/182: 5, last CPU#3: [ 9.040355][ T182] #0: ffffffff9a0267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.040367][ T182] #1: ffffffff9a18dcc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.040372][ T182] #2: ffffffff9a18dd38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.040376][ T182] #3: ffffffff9a0ad660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.040380][ T182] #4: ffffffff9a0ad560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.040383][ T182] irq event stamp: 22398 [ 9.040384][ T182] hardirqs last enabled at (22397): [] __down_trylock_console_sem+0x86/0xa0 [ 9.040386][ T182] hardirqs last disabled at (22398): [] console_emit_next_record+0x3d4/0x4c0 [ 9.040388][ T182] softirqs last enabled at (20824): [] netlink_release+0x17b/0xcf0 [ 9.040392][ T182] softirqs last disabled at (20822): [] netlink_release+0xd2/0xcf0 [ 9.040395][ T182] Preemption disabled at: [ 9.040395][ T182] [<0000000000000000>] 0x0 [ 9.040402][ T182] CPU: 3 UID: 0 PID: 182 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.040406][ T182] Tainted: [W]=WARN [ 9.040407][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.040408][ T182] Call Trace: [ 9.040410][ T182] [ 9.040411][ T182] dump_stack_lvl+0x6f/0xa0 [ 9.040417][ T182] __might_resched.cold+0x1fe/0x2c1 [ 9.040422][ T182] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.040426][ T182] ? __kmalloc_noprof+0xdb/0x760 [ 9.040430][ T182] __kmalloc_noprof+0x443/0x760 [ 9.040432][ T182] ? alloc_buf.isra.0+0x4b/0x260 [ 9.040438][ T182] ? do_raw_spin_unlock+0x59/0x250 [ 9.040441][ T182] alloc_buf.isra.0+0x4b/0x260 [ 9.040444][ T182] put_chars+0x1e1/0x2f0 [ 9.040448][ T182] ? __send_to_port+0x420/0x420 [ 9.040450][ T182] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.040454][ T182] ? validate_chain+0x38b/0xc20 [ 9.040459][ T182] hvc_console_print+0x292/0x780 [ 9.040467][ T182] ? hvc_write+0x3a0/0x3a0 [ 9.040474][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.040476][ T182] ? lock_acquire+0x13c/0x160 [ 9.040480][ T182] console_emit_next_record+0x22f/0x4c0 [ 9.040484][ T182] ? devkmsg_read+0x4b0/0x4b0 [ 9.040485][ T182] ? console_flush_one_record+0x106/0x710 [ 9.040488][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.040490][ T182] ? lock_acquire+0x13c/0x160 [ 9.040494][ T182] console_flush_one_record+0x46f/0x710 [ 9.040498][ T182] ? console_emit_next_record+0x4c0/0x4c0 [ 9.040500][ T182] ? __lock_acquire+0x518/0xc20 [ 9.040504][ T182] console_unlock+0xee/0x1f0 [ 9.040507][ T182] ? console_flush_one_record+0x710/0x710 [ 9.040509][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.040511][ T182] ? lock_acquire+0x60/0x160 [ 9.040514][ T182] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.040515][ T182] ? vprintk_emit+0x320/0x3e0 [ 9.040519][ T182] vprintk_emit+0x37c/0x3e0 [ 9.040522][ T182] ? wake_up_klogd_work_func+0x90/0x90 [ 9.040525][ T182] ? __lock_acquire+0x518/0xc20 [ 9.040529][ T182] _printk+0xc7/0x100 [ 9.040532][ T182] ? snapshot_read.cold+0x21/0x21 [ 9.040535][ T182] ? do_raw_spin_lock+0x131/0x280 [ 9.040538][ T182] ? __rwlock_init+0x150/0x150 [ 9.040541][ T182] ? do_raw_spin_lock+0x131/0x280 [ 9.040544][ T182] do_exit.cold+0x82/0x9c [ 9.040547][ T182] ? exit_notify+0x890/0x890 [ 9.040549][ T182] ? __lock_release.isra.0+0x69/0x1a0 [ 9.040552][ T182] ? rcu_is_watching+0x16/0xd0 [ 9.040556][ T182] do_group_exit+0xb8/0x370 [ 9.040559][ T182] __x64_sys_exit_group+0x3c/0x50 [ 9.040561][ T182] x64_sys_call+0x1567/0x1570 [ 9.040563][ T182] do_syscall_64+0xff/0x530 [ 9.040566][ T182] ? exc_page_fault+0xee/0x100 [ 9.040570][ T182] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.040572][ T182] RIP: 0033:0x7f8c0387d1b8 [ 9.040574][ T182] Code: Unable to access opcode bytes at 0x7f8c0387d18e. [ 9.040575][ T182] RSP: 002b:00007ffff1c41538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.040577][ T182] RAX: ffffffffffffffda RBX: 00007f8c039adf88 RCX: 00007f8c0387d1b8 [ 9.040579][ T182] RDX: 00007f8c035c7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.040580][ T182] RBP: 00007ffff1c41590 R08: 0000000000000000 R09: 0000000000000050 [ 9.040580][ T182] R10: 00007ffff1c41350 R11: 0000000000000246 R12: 0000000000000001 [ 9.040581][ T182] R13: 0000000000000000 R14: 00007f8c039ac680 R15: 00007f8c039adfa0 [ 9.040588][ T182]