[ 10.119064][ T174] ip (174) used greatest stack depth: 24072 bytes left [ 10.119081][ T174] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.119083][ T174] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 174, name: ip [ 10.119085][ T174] preempt_count: 2, expected: 0 [ 10.119086][ T174] RCU nest depth: 0, expected: 0 [ 10.119087][ T174] locks held by ip/174: 5, last CPU#2: [ 10.119089][ T174] #0: ffffffff9f6127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.119100][ T174] #1: ffffffff9f779cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.119105][ T174] #2: ffffffff9f779d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.119109][ T174] #3: ffffffff9f699660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.119113][ T174] #4: ffffffff9f699560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.119116][ T174] irq event stamp: 28618 [ 10.119117][ T174] hardirqs last enabled at (28617): [] __down_trylock_console_sem+0x86/0xa0 [ 10.119119][ T174] hardirqs last disabled at (28618): [] console_emit_next_record+0x3d4/0x4c0 [ 10.119121][ T174] softirqs last enabled at (27516): [] handle_softirqs+0x67c/0x900 [ 10.119123][ T174] softirqs last disabled at (27511): [] __irq_exit_rcu+0x145/0x1c0 [ 10.119126][ T174] Preemption disabled at: [ 10.119126][ T174] [<0000000000000000>] 0x0 [ 10.119133][ T174] CPU: 2 UID: 0 PID: 174 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.119136][ T174] Tainted: [W]=WARN [ 10.119137][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.119139][ T174] Call Trace: [ 10.119141][ T174] [ 10.119142][ T174] dump_stack_lvl+0x6f/0xa0 [ 10.119148][ T174] __might_resched.cold+0x1fe/0x2c1 [ 10.119153][ T174] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.119157][ T174] ? __kmalloc_noprof+0xdb/0x760 [ 10.119162][ T174] __kmalloc_noprof+0x443/0x760 [ 10.119164][ T174] ? alloc_buf.isra.0+0x4b/0x260 [ 10.119170][ T174] ? do_raw_spin_unlock+0x59/0x250 [ 10.119173][ T174] alloc_buf.isra.0+0x4b/0x260 [ 10.119176][ T174] put_chars+0x1e1/0x2f0 [ 10.119179][ T174] ? __send_to_port+0x420/0x420 [ 10.119181][ T174] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.119186][ T174] ? validate_chain+0x38b/0xc20 [ 10.119191][ T174] hvc_console_print+0x292/0x780 [ 10.119197][ T174] ? hvc_write+0x3a0/0x3a0 [ 10.119199][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.119202][ T174] ? lock_acquire+0x13c/0x160 [ 10.119205][ T174] console_emit_next_record+0x22f/0x4c0 [ 10.119209][ T174] ? devkmsg_read+0x4b0/0x4b0 [ 10.119211][ T174] ? console_flush_one_record+0x106/0x710 [ 10.119214][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.119216][ T174] ? lock_acquire+0x13c/0x160 [ 10.119220][ T174] console_flush_one_record+0x46f/0x710 [ 10.119224][ T174] ? console_emit_next_record+0x4c0/0x4c0 [ 10.119226][ T174] ? __lock_acquire+0x518/0xc20 [ 10.119230][ T174] console_unlock+0xee/0x1f0 [ 10.119233][ T174] ? console_flush_one_record+0x710/0x710 [ 10.119235][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.119237][ T174] ? lock_acquire+0x60/0x160 [ 10.119241][ T174] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.119242][ T174] ? vprintk_emit+0x320/0x3e0 [ 10.119246][ T174] vprintk_emit+0x37c/0x3e0 [ 10.119249][ T174] ? wake_up_klogd_work_func+0x90/0x90 [ 10.119253][ T174] ? __lock_acquire+0x518/0xc20 [ 10.119256][ T174] _printk+0xc7/0x100 [ 10.119259][ T174] ? snapshot_read.cold+0x21/0x21 [ 10.119262][ T174] ? do_raw_spin_lock+0x131/0x280 [ 10.119265][ T174] ? __rwlock_init+0x150/0x150 [ 10.119268][ T174] ? do_raw_spin_lock+0x131/0x280 [ 10.119271][ T174] do_exit.cold+0x82/0x9c [ 10.119275][ T174] ? exit_notify+0x890/0x890 [ 10.119276][ T174] ? __lock_release.isra.0+0x69/0x1a0 [ 10.119278][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.119283][ T174] do_group_exit+0xb8/0x370 [ 10.119285][ T174] __x64_sys_exit_group+0x3c/0x50 [ 10.119287][ T174] x64_sys_call+0x1567/0x1570 [ 10.119290][ T174] do_syscall_64+0xff/0x530 [ 10.119294][ T174] ? exc_page_fault+0xee/0x100 [ 10.119296][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.119298][ T174] RIP: 0033:0x7f2770ab01b8 [ 10.119301][ T174] Code: Unable to access opcode bytes at 0x7f2770ab018e. [ 10.119302][ T174] RSP: 002b:00007ffc2ea2cb38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.119304][ T174] RAX: ffffffffffffffda RBX: 00007f2770be0f88 RCX: 00007f2770ab01b8 [ 10.119305][ T174] RDX: 00007f27707fafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.119306][ T174] RBP: 00007ffc2ea2cb90 R08: 0000000000000000 R09: 0000000000000050 [ 10.119307][ T174] R10: 00007ffc2ea2c950 R11: 0000000000000246 R12: 0000000000000001 [ 10.119308][ T174] R13: 0000000000000000 R14: 00007f2770bdf680 R15: 00007f2770be0fa0 [ 10.119314][ T174] [ 10.460304][ T182] PPP generic driver version 2.4.2 [ 10.469145][ T182] NET: Registered PF_PPPOX protocol family [ 18.646900][ T250] iperf3 (250) used greatest stack depth: 23056 bytes left [ 18.646923][ T250] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 18.646925][ T250] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 250, name: iperf3 [ 18.646927][ T250] preempt_count: 2, expected: 0 [ 18.646928][ T250] RCU nest depth: 0, expected: 0 [ 18.646929][ T250] locks held by iperf3/250: 5, last CPU#1: [ 18.646931][ T250] #0: ffffffff9f6127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 18.646943][ T250] #1: ffffffff9f779cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 18.646949][ T250] #2: ffffffff9f779d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 18.646952][ T250] #3: ffffffff9f699660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 18.646956][ T250] #4: ffffffff9f699560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 18.646960][ T250] irq event stamp: 1418958 [ 18.646961][ T250] hardirqs last enabled at (1418957): [] __down_trylock_console_sem+0x86/0xa0 [ 18.646963][ T250] hardirqs last disabled at (1418958): [] console_emit_next_record+0x3d4/0x4c0 [ 18.646965][ T250] softirqs last enabled at (1418850): [] tcp_sendmsg+0x39/0x50 [ 18.646969][ T250] softirqs last disabled at (1418848): [] __release_sock+0x205/0x3a0 [ 18.646973][ T250] Preemption disabled at: [ 18.646974][ T250] [<0000000000000000>] 0x0 [ 18.646981][ T250] CPU: 1 UID: 0 PID: 250 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.646984][ T250] Tainted: [W]=WARN [ 18.646985][ T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.646987][ T250] Call Trace: [ 18.646989][ T250] [ 18.646990][ T250] dump_stack_lvl+0x6f/0xa0 [ 18.646997][ T250] __might_resched.cold+0x1fe/0x2c1 [ 18.647001][ T250] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 18.647005][ T250] ? __kmalloc_noprof+0xdb/0x760 [ 18.647010][ T250] __kmalloc_noprof+0x443/0x760 [ 18.647012][ T250] ? alloc_buf.isra.0+0x4b/0x260 [ 18.647018][ T250] ? do_raw_spin_unlock+0x59/0x250 [ 18.647020][ T250] alloc_buf.isra.0+0x4b/0x260 [ 18.647024][ T250] put_chars+0x1e1/0x2f0 [ 18.647026][ T250] ? prb_final_commit+0x50/0x50 [ 18.647028][ T250] ? __send_to_port+0x420/0x420 [ 18.647031][ T250] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 18.647036][ T250] ? rcu_read_lock_any_held+0x3c/0x90 [ 18.647038][ T250] ? validate_chain+0x38b/0xc20 [ 18.647041][ T250] hvc_console_print+0x292/0x780 [ 18.647045][ T250] ? mark_usage+0x61/0x170 [ 18.647046][ T250] ? __lock_acquire+0x518/0xc20 [ 18.647048][ T250] ? __lock_acquire+0x518/0xc20 [ 18.647052][ T250] ? hvc_write+0x3a0/0x3a0 [ 18.647054][ T250] ? console_emit_next_record+0x1df/0x4c0 [ 18.647057][ T250] ? rcu_is_watching+0x16/0xd0 [ 18.647059][ T250] ? lock_acquire+0x13c/0x160 [ 18.647063][ T250] console_emit_next_record+0x22f/0x4c0 [ 18.647067][ T250] ? devkmsg_read+0x4b0/0x4b0 [ 18.647068][ T250] ? console_flush_one_record+0x106/0x710 [ 18.647071][ T250] ? rcu_is_watching+0x16/0xd0 [ 18.647074][ T250] ? lock_acquire+0x13c/0x160 [ 18.647077][ T250] console_flush_one_record+0x46f/0x710 [ 18.647081][ T250] ? console_emit_next_record+0x4c0/0x4c0 [ 18.647083][ T250] ? __lock_acquire+0x518/0xc20 [ 18.647088][ T250] console_unlock+0xee/0x1f0 [ 18.647091][ T250] ? console_flush_one_record+0x710/0x710 [ 18.647093][ T250] ? rcu_is_watching+0x16/0xd0 [ 18.647095][ T250] ? lock_acquire+0x60/0x160 [ 18.647098][ T250] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.647100][ T250] ? vprintk_emit+0x320/0x3e0 [ 18.647103][ T250] vprintk_emit+0x37c/0x3e0 [ 18.647107][ T250] ? wake_up_klogd_work_func+0x90/0x90 [ 18.647110][ T250] ? __lock_acquire+0x518/0xc20 [ 18.647114][ T250] _printk+0xc7/0x100 [ 18.647117][ T250] ? snapshot_read.cold+0x21/0x21 [ 18.647120][ T250] ? do_raw_spin_lock+0x131/0x280 [ 18.647122][ T250] ? __rwlock_init+0x150/0x150 [ 18.647126][ T250] ? do_raw_spin_lock+0x131/0x280 [ 18.647128][ T250] do_exit.cold+0x82/0x9c [ 18.647132][ T250] ? exit_notify+0x890/0x890 [ 18.647134][ T250] ? __ia32_sys_sendfile+0x200/0x200 [ 18.647138][ T250] ? restore_fpregs_from_fpstate+0x44/0x130 [ 18.647143][ T250] __x64_sys_exit+0x42/0x50 [ 18.647145][ T250] x64_sys_call+0x156c/0x1570 [ 18.647147][ T250] do_syscall_64+0xff/0x530 [ 18.647151][ T250] ? irq_exit_rcu+0x1a/0x30 [ 18.647154][ T250] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.647156][ T250] RIP: 0033:0x7f7a51a49c49 [ 18.647158][ T250] Code: Unable to access opcode bytes at 0x7f7a51a49c1f. [ 18.647160][ T250] RSP: 002b:00007f7a51208e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 18.647162][ T250] RAX: ffffffffffffffda RBX: 00007f7a512096c0 RCX: 00007f7a51a49c49 [ 18.647164][ T250] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 18.647165][ T250] RBP: 00007f7a51208f70 R08: 0000000000000001 R09: 00007f7a512096c0 [ 18.647165][ T250] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f7a50a09000 [ 18.647166][ T250] R13: 00007ffdbc8035c0 R14: 0000000000000002 R15: 00007ffdbc8036c7 [ 18.647172][ T250]