[ 10.364289][ T167] icmps-discard_i (167) used greatest stack depth: 24384 bytes left [ 10.364309][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.364311][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: icmps-discard_i [ 10.364313][ T167] preempt_count: 2, expected: 0 [ 10.364314][ T167] RCU nest depth: 0, expected: 0 [ 10.364315][ T167] locks held by icmps-discard_i/167: 5, last CPU#1: [ 10.364317][ T167] #0: ffffffff85e127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.364329][ T167] #1: ffffffff85f79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.364335][ T167] #2: ffffffff85f79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.364339][ T167] #3: ffffffff85e99660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.364343][ T167] #4: ffffffff85e99560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.364347][ T167] irq event stamp: 289194 [ 10.364348][ T167] hardirqs last enabled at (289193): [] __down_trylock_console_sem+0x86/0xa0 [ 10.364351][ T167] hardirqs last disabled at (289194): [] console_emit_next_record+0x3d4/0x4c0 [ 10.364353][ T167] softirqs last enabled at (289162): [] handle_softirqs+0x67c/0x900 [ 10.364355][ T167] softirqs last disabled at (289155): [] __irq_exit_rcu+0x145/0x1c0 [ 10.364357][ T167] Preemption disabled at: [ 10.364358][ T167] [<0000000000000000>] 0x0 [ 10.364365][ T167] CPU: 1 UID: 0 PID: 167 Comm: icmps-discard_i Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.364369][ T167] Tainted: [W]=WARN [ 10.364369][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.364371][ T167] Call Trace: [ 10.364373][ T167] [ 10.364375][ T167] dump_stack_lvl+0x6f/0xa0 [ 10.364381][ T167] __might_resched.cold+0x1fe/0x2c1 [ 10.364386][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.364391][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 10.364396][ T167] __kmalloc_noprof+0x443/0x760 [ 10.364398][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 10.364405][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 10.364407][ T167] alloc_buf.isra.0+0x4b/0x260 [ 10.364411][ T167] put_chars+0x1e1/0x2f0 [ 10.364414][ T167] ? __send_to_port+0x420/0x420 [ 10.364415][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.364421][ T167] ? validate_chain+0x38b/0xc20 [ 10.364426][ T167] hvc_console_print+0x292/0x780 [ 10.364433][ T167] ? hvc_write+0x3a0/0x3a0 [ 10.364435][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.364438][ T167] ? lock_acquire+0x13c/0x160 [ 10.364442][ T167] console_emit_next_record+0x22f/0x4c0 [ 10.364446][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 10.364448][ T167] ? console_flush_one_record+0x106/0x710 [ 10.364451][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.364453][ T167] ? lock_acquire+0x13c/0x160 [ 10.364457][ T167] console_flush_one_record+0x46f/0x710 [ 10.364461][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 10.364463][ T167] ? __lock_acquire+0x518/0xc20 [ 10.364469][ T167] console_unlock+0xee/0x1f0 [ 10.364471][ T167] ? console_flush_one_record+0x710/0x710 [ 10.364473][ T167] ? rcu_is_watching+0x16/0xd0 [ 10.364476][ T167] ? lock_acquire+0x60/0x160 [ 10.364479][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.364481][ T167] ? vprintk_emit+0x320/0x3e0 [ 10.364485][ T167] vprintk_emit+0x37c/0x3e0 [ 10.364489][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 10.364492][ T167] ? __lock_acquire+0x518/0xc20 [ 10.364496][ T167] _printk+0xc7/0x100 [ 10.364500][ T167] ? snapshot_read.cold+0x21/0x21 [ 10.364503][ T167] ? do_raw_spin_lock+0x131/0x280 [ 10.364505][ T167] ? __rwlock_init+0x150/0x150 [ 10.364509][ T167] ? do_raw_spin_lock+0x131/0x280 [ 10.364512][ T167] do_exit.cold+0x82/0x9c [ 10.364517][ T167] ? exit_notify+0x890/0x890 [ 10.364519][ T167] ? preempt_schedule_thunk+0x16/0x30 [ 10.364524][ T167] do_group_exit+0xb8/0x370 [ 10.364527][ T167] __x64_sys_exit_group+0x3c/0x50 [ 10.364529][ T167] x64_sys_call+0x1567/0x1570 [ 10.364531][ T167] do_syscall_64+0xff/0x530 [ 10.364535][ T167] ? exc_page_fault+0xee/0x100 [ 10.364538][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.364540][ T167] RIP: 0033:0x7f77088f31b8 [ 10.364543][ T167] Code: Unable to access opcode bytes at 0x7f77088f318e. [ 10.364544][ T167] RSP: 002b:00007ffee9513f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.364546][ T167] RAX: ffffffffffffffda RBX: 00007f7708a23f88 RCX: 00007f77088f31b8 [ 10.364548][ T167] RDX: 00007f7708830a88 RSI: ffffffffffffff90 RDI: 0000000000000000 [ 10.364549][ T167] RBP: 00007ffee9513fb0 R08: 0000000000000000 R09: 0000000000000000 [ 10.364549][ T167] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000415df0 [ 10.364550][ T167] R13: 0000000000000000 R14: 00007f7708a22680 R15: 00007f7708a23fa0 [ 10.364558][ T167]