[ 8.839409][ T177] ip (177) used greatest stack depth: 23488 bytes left [ 8.839474][ T177] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 8.839477][ T177] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 177, name: ip [ 8.839479][ T177] preempt_count: 2, expected: 0 [ 8.839479][ T177] RCU nest depth: 0, expected: 0 [ 8.839480][ T177] locks held by ip/177: 5, last CPU#3: [ 8.839483][ T177] #0: ffffffffa0e127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 8.839494][ T177] #1: ffffffffa0f79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 8.839499][ T177] #2: ffffffffa0f79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 8.839503][ T177] #3: ffffffffa0e99660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 8.839507][ T177] #4: ffffffffa0e99560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 8.839511][ T177] irq event stamp: 22058 [ 8.839511][ T177] hardirqs last enabled at (22057): [] __down_trylock_console_sem+0x86/0xa0 [ 8.839514][ T177] hardirqs last disabled at (22058): [] console_emit_next_record+0x3d4/0x4c0 [ 8.839516][ T177] softirqs last enabled at (20884): [] handle_softirqs+0x67c/0x900 [ 8.839518][ T177] softirqs last disabled at (20079): [] __irq_exit_rcu+0x145/0x1c0 [ 8.839520][ T177] Preemption disabled at: [ 8.839521][ T177] [<0000000000000000>] 0x0 [ 8.839527][ T177] CPU: 3 UID: 0 PID: 177 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 8.839531][ T177] Tainted: [W]=WARN [ 8.839532][ T177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.839533][ T177] Call Trace: [ 8.839535][ T177] [ 8.839536][ T177] dump_stack_lvl+0x6f/0xa0 [ 8.839542][ T177] __might_resched.cold+0x1fe/0x2c1 [ 8.839547][ T177] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 8.839551][ T177] ? __kmalloc_noprof+0xdb/0x760 [ 8.839555][ T177] __kmalloc_noprof+0x443/0x760 [ 8.839557][ T177] ? alloc_buf.isra.0+0x4b/0x260 [ 8.839563][ T177] ? do_raw_spin_unlock+0x59/0x250 [ 8.839566][ T177] alloc_buf.isra.0+0x4b/0x260 [ 8.839569][ T177] put_chars+0x1e1/0x2f0 [ 8.839572][ T177] ? __send_to_port+0x420/0x420 [ 8.839574][ T177] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 8.839578][ T177] ? validate_chain+0x38b/0xc20 [ 8.839583][ T177] hvc_console_print+0x292/0x780 [ 8.839590][ T177] ? hvc_write+0x3a0/0x3a0 [ 8.839592][ T177] ? rcu_is_watching+0x16/0xd0 [ 8.839594][ T177] ? lock_acquire+0x13c/0x160 [ 8.839598][ T177] console_emit_next_record+0x22f/0x4c0 [ 8.839602][ T177] ? devkmsg_read+0x4b0/0x4b0 [ 8.839604][ T177] ? console_flush_one_record+0x106/0x710 [ 8.839607][ T177] ? rcu_is_watching+0x16/0xd0 [ 8.839609][ T177] ? lock_acquire+0x13c/0x160 [ 8.839613][ T177] console_flush_one_record+0x46f/0x710 [ 8.839617][ T177] ? console_emit_next_record+0x4c0/0x4c0 [ 8.839618][ T177] ? __lock_acquire+0x518/0xc20 [ 8.839623][ T177] console_unlock+0xee/0x1f0 [ 8.839626][ T177] ? console_flush_one_record+0x710/0x710 [ 8.839628][ T177] ? rcu_is_watching+0x16/0xd0 [ 8.839630][ T177] ? lock_acquire+0x60/0x160 [ 8.839633][ T177] ? __down_trylock_console_sem+0x5e/0xa0 [ 8.839635][ T177] ? vprintk_emit+0x320/0x3e0 [ 8.839638][ T177] vprintk_emit+0x37c/0x3e0 [ 8.839642][ T177] ? wake_up_klogd_work_func+0x90/0x90 [ 8.839645][ T177] ? __lock_acquire+0x518/0xc20 [ 8.839648][ T177] _printk+0xc7/0x100 [ 8.839652][ T177] ? snapshot_read.cold+0x21/0x21 [ 8.839654][ T177] ? do_raw_spin_lock+0x131/0x280 [ 8.839657][ T177] ? __rwlock_init+0x150/0x150 [ 8.839660][ T177] ? do_raw_spin_lock+0x131/0x280 [ 8.839663][ T177] do_exit.cold+0x82/0x9c [ 8.839667][ T177] ? exit_notify+0x890/0x890 [ 8.839668][ T177] ? __lock_release.isra.0+0x69/0x1a0 [ 8.839671][ T177] ? rcu_is_watching+0x16/0xd0 [ 8.839675][ T177] do_group_exit+0xb8/0x370 [ 8.839677][ T177] __x64_sys_exit_group+0x3c/0x50 [ 8.839679][ T177] x64_sys_call+0x1567/0x1570 [ 8.839682][ T177] do_syscall_64+0xff/0x530 [ 8.839685][ T177] ? exc_page_fault+0xee/0x100 [ 8.839688][ T177] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 8.839690][ T177] RIP: 0033:0x7fedfb0e91b8 [ 8.839693][ T177] Code: Unable to access opcode bytes at 0x7fedfb0e918e. [ 8.839694][ T177] RSP: 002b:00007fff8375f848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.839696][ T177] RAX: ffffffffffffffda RBX: 00007fedfb219f88 RCX: 00007fedfb0e91b8 [ 8.839698][ T177] RDX: 00007fedfae33fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 8.839699][ T177] RBP: 00007fff8375f8a0 R08: 0000000000000000 R09: 0000000000000050 [ 8.839699][ T177] R10: 00007fff8375f660 R11: 0000000000000246 R12: 0000000000000001 [ 8.839700][ T177] R13: 0000000000000000 R14: 00007fedfb218680 R15: 00007fedfb219fa0 [ 8.839707][ T177] [ 9.007127][ T180] PPP generic driver version 2.4.2 [ 9.013452][ T180] NET: Registered PF_PPPOX protocol family [ 17.010110][ T240] iperf3 (240) used greatest stack depth: 22976 bytes left [ 17.010129][ T240] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 17.010131][ T240] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 240, name: iperf3 [ 17.010133][ T240] preempt_count: 2, expected: 0 [ 17.010134][ T240] RCU nest depth: 0, expected: 0 [ 17.010135][ T240] locks held by iperf3/240: 5, last CPU#1: [ 17.010137][ T240] #0: ffffffffa0e127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 17.010149][ T240] #1: ffffffffa0f79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 17.010156][ T240] #2: ffffffffa0f79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 17.010160][ T240] #3: ffffffffa0e99660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 17.010164][ T240] #4: ffffffffa0e99560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 17.010168][ T240] irq event stamp: 1592108 [ 17.010169][ T240] hardirqs last enabled at (1592107): [] __down_trylock_console_sem+0x86/0xa0 [ 17.010172][ T240] hardirqs last disabled at (1592108): [] console_emit_next_record+0x3d4/0x4c0 [ 17.010174][ T240] softirqs last enabled at (1590102): [] handle_softirqs+0x67c/0x900 [ 17.010176][ T240] softirqs last disabled at (1589717): [] __irq_exit_rcu+0x145/0x1c0 [ 17.010178][ T240] Preemption disabled at: [ 17.010179][ T240] [<0000000000000000>] 0x0 [ 17.010186][ T240] CPU: 1 UID: 0 PID: 240 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 17.010190][ T240] Tainted: [W]=WARN [ 17.010191][ T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.010193][ T240] Call Trace: [ 17.010194][ T240] [ 17.010196][ T240] dump_stack_lvl+0x6f/0xa0 [ 17.010202][ T240] __might_resched.cold+0x1fe/0x2c1 [ 17.010207][ T240] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 17.010212][ T240] ? __kmalloc_noprof+0xdb/0x760 [ 17.010217][ T240] __kmalloc_noprof+0x443/0x760 [ 17.010219][ T240] ? alloc_buf.isra.0+0x4b/0x260 [ 17.010226][ T240] ? do_raw_spin_unlock+0x59/0x250 [ 17.010229][ T240] alloc_buf.isra.0+0x4b/0x260 [ 17.010232][ T240] put_chars+0x1e1/0x2f0 [ 17.010235][ T240] ? prb_final_commit+0x50/0x50 [ 17.010237][ T240] ? __send_to_port+0x420/0x420 [ 17.010241][ T240] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 17.010245][ T240] ? rcu_read_lock_any_held+0x3c/0x90 [ 17.010248][ T240] ? validate_chain+0x38b/0xc20 [ 17.010252][ T240] hvc_console_print+0x292/0x780 [ 17.010255][ T240] ? mark_usage+0x61/0x170 [ 17.010257][ T240] ? __lock_acquire+0x518/0xc20 [ 17.010259][ T240] ? __lock_acquire+0x518/0xc20 [ 17.010263][ T240] ? hvc_write+0x3a0/0x3a0 [ 17.010266][ T240] ? console_emit_next_record+0x1df/0x4c0 [ 17.010270][ T240] ? rcu_is_watching+0x16/0xd0 [ 17.010273][ T240] ? lock_acquire+0x13c/0x160 [ 17.010278][ T240] console_emit_next_record+0x22f/0x4c0 [ 17.010282][ T240] ? devkmsg_read+0x4b0/0x4b0 [ 17.010284][ T240] ? console_flush_one_record+0x106/0x710 [ 17.010288][ T240] ? rcu_is_watching+0x16/0xd0 [ 17.010291][ T240] ? lock_acquire+0x13c/0x160 [ 17.010296][ T240] console_flush_one_record+0x46f/0x710 [ 17.010301][ T240] ? console_emit_next_record+0x4c0/0x4c0 [ 17.010303][ T240] ? __lock_acquire+0x518/0xc20 [ 17.010310][ T240] console_unlock+0xee/0x1f0 [ 17.010313][ T240] ? console_flush_one_record+0x710/0x710 [ 17.010315][ T240] ? rcu_is_watching+0x16/0xd0 [ 17.010317][ T240] ? lock_acquire+0x60/0x160 [ 17.010322][ T240] ? __down_trylock_console_sem+0x5e/0xa0 [ 17.010324][ T240] ? vprintk_emit+0x320/0x3e0 [ 17.010327][ T240] vprintk_emit+0x37c/0x3e0 [ 17.010332][ T240] ? wake_up_klogd_work_func+0x90/0x90 [ 17.010336][ T240] ? __lock_acquire+0x518/0xc20 [ 17.010340][ T240] _printk+0xc7/0x100 [ 17.010344][ T240] ? snapshot_read.cold+0x21/0x21 [ 17.010347][ T240] ? do_raw_spin_lock+0x131/0x280 [ 17.010350][ T240] ? __rwlock_init+0x150/0x150 [ 17.010354][ T240] ? do_raw_spin_lock+0x131/0x280 [ 17.010357][ T240] do_exit.cold+0x82/0x9c [ 17.010361][ T240] ? exit_notify+0x890/0x890 [ 17.010368][ T240] __x64_sys_exit+0x42/0x50 [ 17.010370][ T240] x64_sys_call+0x156c/0x1570 [ 17.010373][ T240] do_syscall_64+0xff/0x530 [ 17.010377][ T240] ? exc_page_fault+0xee/0x100 [ 17.010381][ T240] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.010384][ T240] RIP: 0033:0x7f8065e84c49 [ 17.010386][ T240] Code: Unable to access opcode bytes at 0x7f8065e84c1f. [ 17.010388][ T240] RSP: 002b:00007f8065643e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 17.010391][ T240] RAX: ffffffffffffffda RBX: 00007f80656446c0 RCX: 00007f8065e84c49 [ 17.010392][ T240] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 17.010393][ T240] RBP: 00007f8065643f70 R08: 0000000000000001 R09: 00007f80656446c0 [ 17.010394][ T240] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f8064e44000 [ 17.010395][ T240] R13: 00007ffd9dd27420 R14: 0000000000000002 R15: 00007ffd9dd27527 [ 17.010404][ T240]