[ 9.814366][ T186] ip (186) used greatest stack depth: 24336 bytes left [ 9.814387][ T186] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.814389][ T186] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 186, name: ip [ 9.814390][ T186] preempt_count: 2, expected: 0 [ 9.814391][ T186] RCU nest depth: 0, expected: 0 [ 9.814392][ T186] locks held by ip/186: 5, last CPU#2: [ 9.814395][ T186] #0: ffffffffb84027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.814409][ T186] #1: ffffffffb8569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.814415][ T186] #2: ffffffffb8569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.814419][ T186] #3: ffffffffb8489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.814423][ T186] #4: ffffffffb8489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.814427][ T186] irq event stamp: 40948 [ 9.814428][ T186] hardirqs last enabled at (40947): [] __down_trylock_console_sem+0x86/0xa0 [ 9.814431][ T186] hardirqs last disabled at (40948): [] console_emit_next_record+0x3d4/0x4c0 [ 9.814433][ T186] softirqs last enabled at (40398): [] handle_softirqs+0x67c/0x900 [ 9.814435][ T186] softirqs last disabled at (39715): [] __irq_exit_rcu+0x145/0x1c0 [ 9.814437][ T186] Preemption disabled at: [ 9.814438][ T186] [<0000000000000000>] 0x0 [ 9.814445][ T186] CPU: 2 UID: 0 PID: 186 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.814449][ T186] Tainted: [W]=WARN [ 9.814450][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.814452][ T186] Call Trace: [ 9.814453][ T186] [ 9.814455][ T186] dump_stack_lvl+0x6f/0xa0 [ 9.814462][ T186] __might_resched.cold+0x1fe/0x2c1 [ 9.814466][ T186] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.814471][ T186] ? __kmalloc_noprof+0xdb/0x760 [ 9.814476][ T186] __kmalloc_noprof+0x443/0x760 [ 9.814478][ T186] ? alloc_buf.isra.0+0x4b/0x260 [ 9.814484][ T186] ? do_raw_spin_unlock+0x59/0x250 [ 9.814487][ T186] alloc_buf.isra.0+0x4b/0x260 [ 9.814490][ T186] put_chars+0x1e1/0x2f0 [ 9.814493][ T186] ? __send_to_port+0x420/0x420 [ 9.814495][ T186] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.814499][ T186] ? validate_chain+0x38b/0xc20 [ 9.814505][ T186] hvc_console_print+0x292/0x780 [ 9.814511][ T186] ? hvc_write+0x3a0/0x3a0 [ 9.814513][ T186] ? rcu_is_watching+0x16/0xd0 [ 9.814515][ T186] ? lock_acquire+0x13c/0x160 [ 9.814519][ T186] console_emit_next_record+0x22f/0x4c0 [ 9.814523][ T186] ? devkmsg_read+0x4b0/0x4b0 [ 9.814525][ T186] ? console_flush_one_record+0x106/0x710 [ 9.814528][ T186] ? rcu_is_watching+0x16/0xd0 [ 9.814531][ T186] ? lock_acquire+0x13c/0x160 [ 9.814535][ T186] console_flush_one_record+0x46f/0x710 [ 9.814539][ T186] ? console_emit_next_record+0x4c0/0x4c0 [ 9.814541][ T186] ? __lock_acquire+0x518/0xc20 [ 9.814546][ T186] console_unlock+0xee/0x1f0 [ 9.814549][ T186] ? console_flush_one_record+0x710/0x710 [ 9.814551][ T186] ? rcu_is_watching+0x16/0xd0 [ 9.814553][ T186] ? lock_acquire+0x60/0x160 [ 9.814557][ T186] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.814558][ T186] ? vprintk_emit+0x320/0x3e0 [ 9.814562][ T186] vprintk_emit+0x37c/0x3e0 [ 9.814566][ T186] ? wake_up_klogd_work_func+0x90/0x90 [ 9.814569][ T186] ? __lock_acquire+0x518/0xc20 [ 9.814573][ T186] _printk+0xc7/0x100 [ 9.814577][ T186] ? snapshot_read.cold+0x21/0x21 [ 9.814579][ T186] ? do_raw_spin_lock+0x131/0x280 [ 9.814582][ T186] ? __rwlock_init+0x150/0x150 [ 9.814586][ T186] ? do_raw_spin_lock+0x131/0x280 [ 9.814589][ T186] do_exit.cold+0x82/0x9c [ 9.814593][ T186] ? exit_notify+0x890/0x890 [ 9.814595][ T186] ? __lock_release.isra.0+0x69/0x1a0 [ 9.814597][ T186] ? rcu_is_watching+0x16/0xd0 [ 9.814602][ T186] do_group_exit+0xb8/0x370 [ 9.814604][ T186] __x64_sys_exit_group+0x3c/0x50 [ 9.814606][ T186] x64_sys_call+0x1567/0x1570 [ 9.814608][ T186] do_syscall_64+0xff/0x530 [ 9.814612][ T186] ? exc_page_fault+0xee/0x100 [ 9.814615][ T186] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.814617][ T186] RIP: 0033:0x7f6aa17b31b8 [ 9.814619][ T186] Code: Unable to access opcode bytes at 0x7f6aa17b318e. [ 9.814621][ T186] RSP: 002b:00007ffd5655b928 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.814623][ T186] RAX: ffffffffffffffda RBX: 00007f6aa18e3f88 RCX: 00007f6aa17b31b8 [ 9.814625][ T186] RDX: 00007f6aa14fdfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.814626][ T186] RBP: 00007ffd5655b980 R08: 0000000000000000 R09: 0000000000008010 [ 9.814626][ T186] R10: 00007ffd5655b740 R11: 0000000000000246 R12: 0000000000000001 [ 9.814627][ T186] R13: 0000000000000000 R14: 00007f6aa18e2680 R15: 00007f6aa18e3fa0 [ 9.814634][ T186] [ 9.994878][ T194] ip (194) used greatest stack depth: 24128 bytes left [ 10.592420][ T223] 8021q: 802.1Q VLAN Support v1.8