[ 10.041486][ T177] ip (177) used greatest stack depth: 23784 bytes left [ 10.041505][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.041508][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 10.041510][ T177] preempt_count: 2, expected: 0 [ 10.041511][ T177] RCU nest depth: 0, expected: 0 [ 10.041513][ T177] locks held by ip/177: 5, last CPU#2: [ 10.041516][ T177] #0: ffffffffaf8127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.041530][ T177] #1: ffffffffaf979cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.041538][ T177] #2: ffffffffaf979d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.041543][ T177] #3: ffffffffaf899660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.041549][ T177] #4: ffffffffaf899560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.041555][ T177] irq event stamp: 23926 [ 10.041556][ T177] hardirqs last enabled at (23925): [] __down_trylock_console_sem+0x86/0xa0 [ 10.041560][ T177] hardirqs last disabled at (23926): [] console_emit_next_record+0x3d4/0x4c0 [ 10.041563][ T177] softirqs last enabled at (23454): [] handle_softirqs+0x67c/0x900 [ 10.041566][ T177] softirqs last disabled at (23449): [] __irq_exit_rcu+0x145/0x1c0 [ 10.041569][ T177] Preemption disabled at: [ 10.041570][ T177] [<0000000000000000>] 0x0 [ 10.041579][ T177] CPU: 2 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.041584][ T177] Tainted: [W]=WARN [ 10.041585][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.041587][ T177] Call Trace: [ 10.041589][ T177] [ 10.041591][ T177] dump_stack_lvl+0x6f/0xa0 [ 10.041600][ T177] __might_resched.cold+0x1fe/0x2c1 [ 10.041605][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.041611][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 10.041619][ T177] __kmalloc_noprof+0x443/0x760 [ 10.041622][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 10.041631][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 10.041635][ T177] alloc_buf.isra.0+0x4b/0x260 [ 10.041642][ T177] put_chars+0x1e1/0x2f0 [ 10.041647][ T177] ? __send_to_port+0x420/0x420 [ 10.041649][ T177] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.041656][ T177] ? validate_chain+0x38b/0xc20 [ 10.041665][ T177] hvc_console_print+0x292/0x780 [ 10.041676][ T177] ? hvc_write+0x3a0/0x3a0 [ 10.041680][ T177] ? rcu_is_watching+0x16/0xd0 [ 10.041683][ T177] ? lock_acquire+0x13c/0x160 [ 10.041690][ T177] console_emit_next_record+0x22f/0x4c0 [ 10.041697][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 10.041699][ T177] ? console_flush_one_record+0x106/0x710 [ 10.041704][ T177] ? rcu_is_watching+0x16/0xd0 [ 10.041708][ T177] ? lock_acquire+0x13c/0x160 [ 10.041715][ T177] console_flush_one_record+0x46f/0x710 [ 10.041721][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 10.041724][ T177] ? __lock_acquire+0x518/0xc20 [ 10.041733][ T177] console_unlock+0xee/0x1f0 [ 10.041738][ T177] ? console_flush_one_record+0x710/0x710 [ 10.041740][ T177] ? rcu_is_watching+0x16/0xd0 [ 10.041744][ T177] ? lock_acquire+0x60/0x160 [ 10.041750][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.041753][ T177] ? vprintk_emit+0x320/0x3e0 [ 10.041758][ T177] vprintk_emit+0x37c/0x3e0 [ 10.041764][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 10.041770][ T177] ? __lock_acquire+0x518/0xc20 [ 10.041776][ T177] _printk+0xc7/0x100 [ 10.041781][ T177] ? snapshot_read.cold+0x21/0x21 [ 10.041786][ T177] ? do_raw_spin_lock+0x131/0x280 [ 10.041790][ T177] ? __rwlock_init+0x150/0x150 [ 10.041796][ T177] ? do_raw_spin_lock+0x131/0x280 [ 10.041801][ T177] do_exit.cold+0x82/0x9c [ 10.041806][ T177] ? exit_notify+0x890/0x890 [ 10.041808][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 10.041813][ T177] ? rcu_is_watching+0x16/0xd0 [ 10.041820][ T177] do_group_exit+0xb8/0x370 [ 10.041825][ T177] __x64_sys_exit_group+0x3c/0x50 [ 10.041827][ T177] x64_sys_call+0x1567/0x1570 [ 10.041831][ T177] do_syscall_64+0xff/0x530 [ 10.041836][ T177] ? exc_page_fault+0xee/0x100 [ 10.041840][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.041843][ T177] RIP: 0033:0x7ff0094311b8 [ 10.041847][ T177] Code: Unable to access opcode bytes at 0x7ff00943118e. [ 10.041848][ T177] RSP: 002b:00007ffe4ada3908 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.041851][ T177] RAX: ffffffffffffffda RBX: 00007ff009561f88 RCX: 00007ff0094311b8 [ 10.041853][ T177] RDX: 00007ff00917bfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.041855][ T177] RBP: 00007ffe4ada3960 R08: 0000000000000000 R09: 0000000000000050 [ 10.041856][ T177] R10: 00007ffe4ada3720 R11: 0000000000000246 R12: 0000000000000001 [ 10.041857][ T177] R13: 0000000000000000 R14: 00007ff009560680 R15: 00007ff009561fa0 [ 10.041870][ T177] [ 10.225733][ T180] PPP generic driver version 2.4.2 [ 10.233555][ T180] NET: Registered PF_PPPOX protocol family [ 18.353063][ T248] iperf3 (248) used greatest stack depth: 23328 bytes left [ 18.353087][ T248] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 18.353090][ T248] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 248, name: iperf3 [ 18.353092][ T248] preempt_count: 2, expected: 0 [ 18.353094][ T248] RCU nest depth: 0, expected: 0 [ 18.353095][ T248] locks held by iperf3/248: 5, last CPU#1: [ 18.353098][ T248] #0: ffffffffaf8127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 18.353113][ T248] #1: ffffffffaf979cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 18.353121][ T248] #2: ffffffffaf979d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 18.353128][ T248] #3: ffffffffaf899660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 18.353134][ T248] #4: ffffffffaf899560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 18.353141][ T248] irq event stamp: 1100906 [ 18.353142][ T248] hardirqs last enabled at (1100905): [] __down_trylock_console_sem+0x86/0xa0 [ 18.353146][ T248] hardirqs last disabled at (1100906): [] console_emit_next_record+0x3d4/0x4c0 [ 18.353149][ T248] softirqs last enabled at (1100136): [] handle_softirqs+0x67c/0x900 [ 18.353153][ T248] softirqs last disabled at (1100129): [] __irq_exit_rcu+0x145/0x1c0 [ 18.353156][ T248] Preemption disabled at: [ 18.353157][ T248] [<0000000000000000>] 0x0 [ 18.353166][ T248] CPU: 1 UID: 0 PID: 248 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.353170][ T248] Tainted: [W]=WARN [ 18.353172][ T248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.353174][ T248] Call Trace: [ 18.353177][ T248] [ 18.353179][ T248] dump_stack_lvl+0x6f/0xa0 [ 18.353187][ T248] __might_resched.cold+0x1fe/0x2c1 [ 18.353194][ T248] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 18.353200][ T248] ? __kmalloc_noprof+0xdb/0x760 [ 18.353207][ T248] __kmalloc_noprof+0x443/0x760 [ 18.353211][ T248] ? alloc_buf.isra.0+0x4b/0x260 [ 18.353220][ T248] ? do_raw_spin_unlock+0x59/0x250 [ 18.353224][ T248] alloc_buf.isra.0+0x4b/0x260 [ 18.353229][ T248] put_chars+0x1e1/0x2f0 [ 18.353233][ T248] ? prb_final_commit+0x50/0x50 [ 18.353237][ T248] ? __send_to_port+0x420/0x420 [ 18.353242][ T248] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 18.353248][ T248] ? rcu_read_lock_any_held+0x3c/0x90 [ 18.353252][ T248] ? validate_chain+0x38b/0xc20 [ 18.353258][ T248] hvc_console_print+0x292/0x780 [ 18.353263][ T248] ? mark_usage+0x61/0x170 [ 18.353266][ T248] ? __lock_acquire+0x518/0xc20 [ 18.353268][ T248] ? __lock_acquire+0x518/0xc20 [ 18.353275][ T248] ? hvc_write+0x3a0/0x3a0 [ 18.353279][ T248] ? console_emit_next_record+0x1df/0x4c0 [ 18.353284][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.353288][ T248] ? lock_acquire+0x13c/0x160 [ 18.353295][ T248] console_emit_next_record+0x22f/0x4c0 [ 18.353302][ T248] ? devkmsg_read+0x4b0/0x4b0 [ 18.353304][ T248] ? console_flush_one_record+0x106/0x710 [ 18.353310][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.353313][ T248] ? lock_acquire+0x13c/0x160 [ 18.353320][ T248] console_flush_one_record+0x46f/0x710 [ 18.353328][ T248] ? console_emit_next_record+0x4c0/0x4c0 [ 18.353330][ T248] ? __lock_acquire+0x518/0xc20 [ 18.353340][ T248] console_unlock+0xee/0x1f0 [ 18.353345][ T248] ? console_flush_one_record+0x710/0x710 [ 18.353348][ T248] ? rcu_is_watching+0x16/0xd0 [ 18.353352][ T248] ? lock_acquire+0x60/0x160 [ 18.353358][ T248] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.353361][ T248] ? vprintk_emit+0x320/0x3e0 [ 18.353367][ T248] vprintk_emit+0x37c/0x3e0 [ 18.353373][ T248] ? wake_up_klogd_work_func+0x90/0x90 [ 18.353379][ T248] ? __lock_acquire+0x518/0xc20 [ 18.353386][ T248] _printk+0xc7/0x100 [ 18.353390][ T248] ? snapshot_read.cold+0x21/0x21 [ 18.353395][ T248] ? do_raw_spin_lock+0x131/0x280 [ 18.353399][ T248] ? __rwlock_init+0x150/0x150 [ 18.353406][ T248] ? do_raw_spin_lock+0x131/0x280 [ 18.353411][ T248] do_exit.cold+0x82/0x9c [ 18.353416][ T248] ? exit_notify+0x890/0x890 [ 18.353426][ T248] __x64_sys_exit+0x42/0x50 [ 18.353429][ T248] x64_sys_call+0x156c/0x1570 [ 18.353433][ T248] do_syscall_64+0xff/0x530 [ 18.353438][ T248] ? exc_page_fault+0xee/0x100 [ 18.353442][ T248] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.353446][ T248] RIP: 0033:0x7fbea85c4c49 [ 18.353449][ T248] Code: Unable to access opcode bytes at 0x7fbea85c4c1f. [ 18.353451][ T248] RSP: 002b:00007fbea7d83e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 18.353454][ T248] RAX: ffffffffffffffda RBX: 00007fbea7d846c0 RCX: 00007fbea85c4c49 [ 18.353456][ T248] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 18.353457][ T248] RBP: 00007fbea7d83f70 R08: 0000000000000001 R09: 00007fbea7d846c0 [ 18.353459][ T248] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fbea7584000 [ 18.353460][ T248] R13: 00007ffe09379150 R14: 0000000000000002 R15: 00007ffe09379257 [ 18.353473][ T248]