[ 9.853034][ T177] ip (177) used greatest stack depth: 23344 bytes left [ 9.853053][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.853055][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 9.853057][ T177] preempt_count: 2, expected: 0 [ 9.853058][ T177] RCU nest depth: 0, expected: 0 [ 9.853059][ T177] locks held by ip/177: 5, last CPU#1: [ 9.853061][ T177] #0: ffffffff854127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.853072][ T177] #1: ffffffff85579cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.853078][ T177] #2: ffffffff85579d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.853082][ T177] #3: ffffffff85499660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.853086][ T177] #4: ffffffff85499560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.853089][ T177] irq event stamp: 34196 [ 9.853090][ T177] hardirqs last enabled at (34195): [] __down_trylock_console_sem+0x86/0xa0 [ 9.853093][ T177] hardirqs last disabled at (34196): [] console_emit_next_record+0x3d4/0x4c0 [ 9.853095][ T177] softirqs last enabled at (33838): [] handle_softirqs+0x67c/0x900 [ 9.853097][ T177] softirqs last disabled at (33833): [] __irq_exit_rcu+0x145/0x1c0 [ 9.853099][ T177] Preemption disabled at: [ 9.853100][ T177] [<0000000000000000>] 0x0 [ 9.853107][ T177] CPU: 1 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.853111][ T177] Tainted: [W]=WARN [ 9.853111][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.853113][ T177] Call Trace: [ 9.853115][ T177] [ 9.853116][ T177] dump_stack_lvl+0x6f/0xa0 [ 9.853122][ T177] __might_resched.cold+0x1fe/0x2c1 [ 9.853127][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.853131][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 9.853136][ T177] __kmalloc_noprof+0x443/0x760 [ 9.853138][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 9.853144][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 9.853147][ T177] alloc_buf.isra.0+0x4b/0x260 [ 9.853150][ T177] put_chars+0x1e1/0x2f0 [ 9.853153][ T177] ? __send_to_port+0x420/0x420 [ 9.853154][ T177] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.853159][ T177] ? validate_chain+0x38b/0xc20 [ 9.853164][ T177] hvc_console_print+0x292/0x780 [ 9.853170][ T177] ? hvc_write+0x3a0/0x3a0 [ 9.853173][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.853175][ T177] ? lock_acquire+0x13c/0x160 [ 9.853179][ T177] console_emit_next_record+0x22f/0x4c0 [ 9.853183][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 9.853185][ T177] ? console_flush_one_record+0x106/0x710 [ 9.853188][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.853190][ T177] ? lock_acquire+0x13c/0x160 [ 9.853194][ T177] console_flush_one_record+0x46f/0x710 [ 9.853198][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 9.853199][ T177] ? __lock_acquire+0x518/0xc20 [ 9.853204][ T177] console_unlock+0xee/0x1f0 [ 9.853207][ T177] ? console_flush_one_record+0x710/0x710 [ 9.853209][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.853211][ T177] ? lock_acquire+0x60/0x160 [ 9.853215][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.853217][ T177] ? vprintk_emit+0x320/0x3e0 [ 9.853220][ T177] vprintk_emit+0x37c/0x3e0 [ 9.853224][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 9.853227][ T177] ? __lock_acquire+0x518/0xc20 [ 9.853230][ T177] _printk+0xc7/0x100 [ 9.853234][ T177] ? snapshot_read.cold+0x21/0x21 [ 9.853237][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.853239][ T177] ? __rwlock_init+0x150/0x150 [ 9.853243][ T177] ? do_raw_spin_lock+0x131/0x280 [ 9.853245][ T177] do_exit.cold+0x82/0x9c [ 9.853249][ T177] ? exit_notify+0x890/0x890 [ 9.853250][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 9.853253][ T177] ? rcu_is_watching+0x16/0xd0 [ 9.853257][ T177] do_group_exit+0xb8/0x370 [ 9.853260][ T177] __x64_sys_exit_group+0x3c/0x50 [ 9.853261][ T177] x64_sys_call+0x1567/0x1570 [ 9.853264][ T177] do_syscall_64+0xff/0x530 [ 9.853268][ T177] ? exc_page_fault+0xee/0x100 [ 9.853270][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.853273][ T177] RIP: 0033:0x7f2c57da61b8 [ 9.853275][ T177] Code: Unable to access opcode bytes at 0x7f2c57da618e. [ 9.853276][ T177] RSP: 002b:00007ffeda6d19f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.853279][ T177] RAX: ffffffffffffffda RBX: 00007f2c57ed6f88 RCX: 00007f2c57da61b8 [ 9.853280][ T177] RDX: 00007f2c57af0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.853281][ T177] RBP: 00007ffeda6d1a50 R08: 0000000000000000 R09: 0000000000000050 [ 9.853282][ T177] R10: 00007ffeda6d1810 R11: 0000000000000246 R12: 0000000000000001 [ 9.853282][ T177] R13: 0000000000000000 R14: 00007f2c57ed5680 R15: 00007f2c57ed6fa0 [ 9.853289][ T177] [ 10.037811][ T180] PPP generic driver version 2.4.2 [ 10.063227][ T180] NET: Registered PF_PPPOX protocol family [ 18.080422][ T248] iperf3 (248) used greatest stack depth: 23280 bytes left [ 18.080442][ T248] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 18.080444][ T248] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 248, name: iperf3 [ 18.080446][ T248] preempt_count: 2, expected: 0 [ 18.080447][ T248] RCU nest depth: 0, expected: 0 [ 18.080448][ T248] locks held by iperf3/248: 5, last CPU#2: [ 18.080450][ T248] #0: ffffffff854127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 18.080461][ T248] #1: ffffffff85579cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 18.080467][ T248] #2: ffffffff85579d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 18.080470][ T248] #3: ffffffff85499660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 18.080474][ T248] #4: ffffffff85499560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 18.080479][ T248] irq event stamp: 1438332 [ 18.080480][ T248] hardirqs last enabled at (1438331): [] __down_trylock_console_sem+0x86/0xa0 [ 18.080482][ T248] hardirqs last disabled at (1438332): [] console_emit_next_record+0x3d4/0x4c0 [ 18.080484][ T248] softirqs last enabled at (1437976): [] handle_softirqs+0x67c/0x900 [ 18.080487][ T248] softirqs last disabled at (1437971): [] __irq_exit_rcu+0x145/0x1c0 [ 18.080489][ T248] Preemption disabled at: [ 18.080489][ T248] [<0000000000000000>] 0x0 [ 18.080496][ T248] CPU: 2 UID: 0 PID: 248 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.080500][ T248] Tainted: [W]=WARN [ 18.080501][ T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.080502][ T248] Call Trace: [ 18.080504][ T248] [ 18.080506][ T248] dump_stack_lvl+0x6f/0xa0 [ 18.080512][ T248] __might_resched.cold+0x1fe/0x2c1 [ 18.080517][ T248] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 18.080521][ T248] ? __kmalloc_noprof+0xdb/0x760 [ 18.080526][ T248] __kmalloc_noprof+0x443/0x760 [ 18.080528][ T248] ? alloc_buf.isra.0+0x4b/0x260 [ 18.080534][ T248] ? do_raw_spin_unlock+0x59/0x250 [ 18.080537][ T248] alloc_buf.isra.0+0x4b/0x260 [ 18.080540][ T248] put_chars+0x1e1/0x2f0 [ 18.080542][ T248] ? prb_final_commit+0x50/0x50 [ 18.080545][ T248] ? __send_to_port+0x420/0x420 [ 18.080548][ T248] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 18.080552][ T248] ? rcu_read_lock_any_held+0x3c/0x90 [ 18.080554][ T248] ? validate_chain+0x38b/0xc20 [ 18.080558][ T248] hvc_console_print+0x292/0x780 [ 18.080561][ T248] ? mark_usage+0x61/0x170 [ 18.080563][ T248] ? __lock_acquire+0x518/0xc20 [ 18.080565][ T248] ? __lock_acquire+0x518/0xc20 [ 18.080568][ T248] ? hvc_write+0x3a0/0x3a0 [ 18.080571][ T248] ? console_emit_next_record+0x1df/0x4c0 [ 18.080574][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.080576][ T248] ? lock_acquire+0x13c/0x160 [ 18.080580][ T248] console_emit_next_record+0x22f/0x4c0 [ 18.080584][ T248] ? devkmsg_read+0x4b0/0x4b0 [ 18.080586][ T248] ? console_flush_one_record+0x106/0x710 [ 18.080589][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.080591][ T248] ? lock_acquire+0x13c/0x160 [ 18.080595][ T248] console_flush_one_record+0x46f/0x710 [ 18.080599][ T248] ? console_emit_next_record+0x4c0/0x4c0 [ 18.080601][ T248] ? __lock_acquire+0x518/0xc20 [ 18.080605][ T248] console_unlock+0xee/0x1f0 [ 18.080608][ T248] ? console_flush_one_record+0x710/0x710 [ 18.080610][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.080612][ T248] ? lock_acquire+0x60/0x160 [ 18.080616][ T248] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.080617][ T248] ? vprintk_emit+0x320/0x3e0 [ 18.080621][ T248] vprintk_emit+0x37c/0x3e0 [ 18.080624][ T248] ? wake_up_klogd_work_func+0x90/0x90 [ 18.080628][ T248] ? __lock_acquire+0x518/0xc20 [ 18.080631][ T248] _printk+0xc7/0x100 [ 18.080635][ T248] ? snapshot_read.cold+0x21/0x21 [ 18.080638][ T248] ? do_raw_spin_lock+0x131/0x280 [ 18.080640][ T248] ? __rwlock_init+0x150/0x150 [ 18.080644][ T248] ? do_raw_spin_lock+0x131/0x280 [ 18.080646][ T248] do_exit.cold+0x82/0x9c [ 18.080650][ T248] ? exit_notify+0x890/0x890 [ 18.080655][ T248] __x64_sys_exit+0x42/0x50 [ 18.080657][ T248] x64_sys_call+0x156c/0x1570 [ 18.080659][ T248] do_syscall_64+0xff/0x530 [ 18.080663][ T248] ? exc_page_fault+0xee/0x100 [ 18.080666][ T248] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.080668][ T248] RIP: 0033:0x7f731bb7ac49 [ 18.080670][ T248] Code: Unable to access opcode bytes at 0x7f731bb7ac1f. [ 18.080672][ T248] RSP: 002b:00007f731b339e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 18.080674][ T248] RAX: ffffffffffffffda RBX: 00007f731b33a6c0 RCX: 00007f731bb7ac49 [ 18.080675][ T248] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 18.080676][ T248] RBP: 00007f731b339f70 R08: 0000000000000001 R09: 00007f731b33a6c0 [ 18.080677][ T248] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f731ab3a000 [ 18.080678][ T248] R13: 00007ffc5cd7dcf0 R14: 0000000000000002 R15: 00007ffc5cd7ddf7 [ 18.080684][ T248]