[ 10.067738][ T181] ip (181) used greatest stack depth: 23584 bytes left [ 10.067758][ T181] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.067761][ T181] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 181, name: ip [ 10.067762][ T181] preempt_count: 2, expected: 0 [ 10.067763][ T181] RCU nest depth: 0, expected: 0 [ 10.067764][ T181] locks held by ip/181: 5, last CPU#3: [ 10.067766][ T181] #0: ffffffff90402f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 10.067778][ T181] #1: ffffffff9056a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.067783][ T181] #2: ffffffff9056a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.067787][ T181] #3: ffffffff90489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.067790][ T181] #4: ffffffff90489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.067793][ T181] irq event stamp: 28290 [ 10.067794][ T181] hardirqs last enabled at (28289): [] __down_trylock_console_sem+0x86/0xa0 [ 10.067798][ T181] hardirqs last disabled at (28290): [] console_emit_next_record+0x3d4/0x4c0 [ 10.067799][ T181] softirqs last enabled at (26738): [] netlink_release+0x17b/0xcf0 [ 10.067803][ T181] softirqs last disabled at (26736): [] netlink_release+0xd2/0xcf0 [ 10.067806][ T181] Preemption disabled at: [ 10.067806][ T181] [<0000000000000000>] 0x0 [ 10.067813][ T181] CPU: 3 UID: 0 PID: 181 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.067817][ T181] Tainted: [W]=WARN [ 10.067818][ T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.067820][ T181] Call Trace: [ 10.067821][ T181] [ 10.067823][ T181] dump_stack_lvl+0x6f/0xa0 [ 10.067828][ T181] __might_resched.cold+0x1fe/0x2c1 [ 10.067832][ T181] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.067836][ T181] ? __kmalloc_noprof+0xdb/0x760 [ 10.067841][ T181] __kmalloc_noprof+0x443/0x760 [ 10.067843][ T181] ? alloc_buf.isra.0+0x4b/0x260 [ 10.067849][ T181] ? do_raw_spin_unlock+0x59/0x250 [ 10.067852][ T181] alloc_buf.isra.0+0x4b/0x260 [ 10.067855][ T181] put_chars+0x1e1/0x2f0 [ 10.067858][ T181] ? __send_to_port+0x420/0x420 [ 10.067865][ T181] hvc_console_print+0x292/0x780 [ 10.067872][ T181] ? hvc_write+0x3a0/0x3a0 [ 10.067875][ T181] ? lock_acquire+0x13c/0x160 [ 10.067880][ T181] console_emit_next_record+0x22f/0x4c0 [ 10.067884][ T181] ? devkmsg_read+0x4b0/0x4b0 [ 10.067885][ T181] ? console_flush_one_record+0x106/0x710 [ 10.067888][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.067891][ T181] ? lock_acquire+0x13c/0x160 [ 10.067896][ T181] console_flush_one_record+0x46f/0x710 [ 10.067900][ T181] ? console_emit_next_record+0x4c0/0x4c0 [ 10.067901][ T181] ? __lock_acquire+0x518/0xc20 [ 10.067908][ T181] console_unlock+0xee/0x1f0 [ 10.067911][ T181] ? console_flush_one_record+0x710/0x710 [ 10.067912][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.067914][ T181] ? lock_acquire+0x60/0x160 [ 10.067918][ T181] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.067920][ T181] ? vprintk_emit+0x320/0x3e0 [ 10.067923][ T181] vprintk_emit+0x37c/0x3e0 [ 10.067927][ T181] ? wake_up_klogd_work_func+0x90/0x90 [ 10.067930][ T181] ? __lock_acquire+0x518/0xc20 [ 10.067934][ T181] _printk+0xc7/0x100 [ 10.067937][ T181] ? snapshot_read.cold+0x21/0x21 [ 10.067940][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.067943][ T181] ? __rwlock_init+0x150/0x150 [ 10.067947][ T181] ? do_raw_spin_lock+0x131/0x280 [ 10.067950][ T181] do_exit.cold+0x82/0x9c [ 10.067954][ T181] ? exit_notify+0x890/0x890 [ 10.067956][ T181] ? __lock_release.isra.0+0x69/0x1a0 [ 10.067959][ T181] ? rcu_is_watching+0x16/0xd0 [ 10.067963][ T181] do_group_exit+0xb8/0x370 [ 10.067966][ T181] __x64_sys_exit_group+0x3c/0x50 [ 10.067968][ T181] x64_sys_call+0x1567/0x1570 [ 10.067971][ T181] do_syscall_64+0x10e/0x570 [ 10.067974][ T181] ? exc_page_fault+0xee/0x100 [ 10.067978][ T181] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.067980][ T181] RIP: 0033:0x7f0efc50b1b8 [ 10.067982][ T181] Code: Unable to access opcode bytes at 0x7f0efc50b18e. [ 10.067983][ T181] RSP: 002b:00007ffe9393d028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.067986][ T181] RAX: ffffffffffffffda RBX: 00007f0efc63bf88 RCX: 00007f0efc50b1b8 [ 10.067987][ T181] RDX: 00007f0efc255fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.067988][ T181] RBP: 00007ffe9393d080 R08: 0000000000000000 R09: 0000000000000050 [ 10.067989][ T181] R10: 00007ffe9393ce40 R11: 0000000000000246 R12: 0000000000000001 [ 10.067990][ T181] R13: 0000000000000000 R14: 00007f0efc63a680 R15: 00007f0efc63bfa0 [ 10.067997][ T181]