[ 8.975259][ T176] ip (176) used greatest stack depth: 23816 bytes left [ 8.975274][ T176] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 8.975276][ T176] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 176, name: ip [ 8.975277][ T176] preempt_count: 2, expected: 0 [ 8.975278][ T176] RCU nest depth: 0, expected: 0 [ 8.975279][ T176] locks held by ip/176: 5, last CPU#2: [ 8.975282][ T176] #0: ffffffff8f602f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0 [ 8.975293][ T176] #1: ffffffff8f76a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 8.975298][ T176] #2: ffffffff8f76a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 8.975301][ T176] #3: ffffffff8f689de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 8.975305][ T176] #4: ffffffff8f689ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 8.975308][ T176] irq event stamp: 35100 [ 8.975308][ T176] hardirqs last enabled at (35099): [] __down_trylock_console_sem+0x86/0xa0 [ 8.975312][ T176] hardirqs last disabled at (35100): [] console_emit_next_record+0x3d4/0x4c0 [ 8.975313][ T176] softirqs last enabled at (33526): [] netlink_release+0x17b/0xcf0 [ 8.975317][ T176] softirqs last disabled at (33524): [] netlink_release+0xd2/0xcf0 [ 8.975319][ T176] Preemption disabled at: [ 8.975320][ T176] [<0000000000000000>] 0x0 [ 8.975326][ T176] CPU: 2 UID: 0 PID: 176 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 8.975329][ T176] Tainted: [W]=WARN [ 8.975330][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.975331][ T176] Call Trace: [ 8.975333][ T176] [ 8.975334][ T176] dump_stack_lvl+0x6f/0xa0 [ 8.975340][ T176] __might_resched.cold+0x1fe/0x2c1 [ 8.975344][ T176] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 8.975347][ T176] ? __kmalloc_noprof+0xdb/0x760 [ 8.975352][ T176] __kmalloc_noprof+0x443/0x760 [ 8.975355][ T176] ? alloc_buf.isra.0+0x4b/0x260 [ 8.975361][ T176] ? do_raw_spin_unlock+0x59/0x250 [ 8.975364][ T176] alloc_buf.isra.0+0x4b/0x260 [ 8.975367][ T176] put_chars+0x1e1/0x2f0 [ 8.975369][ T176] ? __send_to_port+0x420/0x420 [ 8.975376][ T176] hvc_console_print+0x292/0x780 [ 8.975382][ T176] ? hvc_write+0x3a0/0x3a0 [ 8.975385][ T176] ? lock_acquire+0x13c/0x160 [ 8.975389][ T176] console_emit_next_record+0x22f/0x4c0 [ 8.975393][ T176] ? devkmsg_read+0x4b0/0x4b0 [ 8.975394][ T176] ? console_flush_one_record+0x106/0x710 [ 8.975396][ T176] ? rcu_is_watching+0x16/0xd0 [ 8.975400][ T176] ? lock_acquire+0x13c/0x160 [ 8.975404][ T176] console_flush_one_record+0x46f/0x710 [ 8.975407][ T176] ? console_emit_next_record+0x4c0/0x4c0 [ 8.975409][ T176] ? __lock_acquire+0x518/0xc20 [ 8.975414][ T176] console_unlock+0xee/0x1f0 [ 8.975416][ T176] ? console_flush_one_record+0x710/0x710 [ 8.975417][ T176] ? rcu_is_watching+0x16/0xd0 [ 8.975419][ T176] ? lock_acquire+0x60/0x160 [ 8.975423][ T176] ? __down_trylock_console_sem+0x5e/0xa0 [ 8.975424][ T176] ? vprintk_emit+0x320/0x3e0 [ 8.975427][ T176] vprintk_emit+0x37c/0x3e0 [ 8.975430][ T176] ? wake_up_klogd_work_func+0x90/0x90 [ 8.975433][ T176] ? __lock_acquire+0x518/0xc20 [ 8.975437][ T176] _printk+0xc7/0x100 [ 8.975440][ T176] ? snapshot_read.cold+0x21/0x21 [ 8.975443][ T176] ? do_raw_spin_lock+0x131/0x280 [ 8.975445][ T176] ? __rwlock_init+0x150/0x150 [ 8.975449][ T176] ? do_raw_spin_lock+0x131/0x280 [ 8.975452][ T176] do_exit.cold+0x82/0x9c [ 8.975456][ T176] ? exit_notify+0x890/0x890 [ 8.975457][ T176] ? __lock_release.isra.0+0x69/0x1a0 [ 8.975460][ T176] ? rcu_is_watching+0x16/0xd0 [ 8.975464][ T176] do_group_exit+0xb8/0x370 [ 8.975467][ T176] __x64_sys_exit_group+0x3c/0x50 [ 8.975469][ T176] x64_sys_call+0x1567/0x1570 [ 8.975471][ T176] do_syscall_64+0x10e/0x570 [ 8.975475][ T176] ? exc_page_fault+0xee/0x100 [ 8.975478][ T176] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 8.975480][ T176] RIP: 0033:0x7f6f3ce921b8 [ 8.975482][ T176] Code: Unable to access opcode bytes at 0x7f6f3ce9218e. [ 8.975483][ T176] RSP: 002b:00007ffd32c159b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.975486][ T176] RAX: ffffffffffffffda RBX: 00007f6f3cfc2f88 RCX: 00007f6f3ce921b8 [ 8.975487][ T176] RDX: 00007f6f3cbdcfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 8.975488][ T176] RBP: 00007ffd32c15a10 R08: 0000000000000000 R09: 0000000000000050 [ 8.975489][ T176] R10: 00007ffd32c157d0 R11: 0000000000000246 R12: 0000000000000001 [ 8.975490][ T176] R13: 0000000000000000 R14: 00007f6f3cfc1680 R15: 00007f6f3cfc2fa0 [ 8.975496][ T176]