[ 13.509152][ T199] packetdrill (199) used greatest stack depth: 24552 bytes left [ 13.509171][ T199] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.509173][ T199] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 199, name: packetdrill [ 13.509175][ T199] preempt_count: 2, expected: 0 [ 13.509176][ T199] RCU nest depth: 0, expected: 0 [ 13.509177][ T199] locks held by packetdrill/199: 5, last CPU#3: [ 13.509179][ T199] #0: ffffffff990027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.509192][ T199] #1: ffffffff99169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.509198][ T199] #2: ffffffff99169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.509202][ T199] #3: ffffffff99089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.509205][ T199] #4: ffffffff99089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.509209][ T199] irq event stamp: 3905906 [ 13.509209][ T199] hardirqs last enabled at (3905905): [] __down_trylock_console_sem+0x86/0xa0 [ 13.509212][ T199] hardirqs last disabled at (3905906): [] console_emit_next_record+0x3d4/0x4c0 [ 13.509214][ T199] softirqs last enabled at (3905830): [] handle_softirqs+0x67c/0x900 [ 13.509216][ T199] softirqs last disabled at (3905403): [] __irq_exit_rcu+0x145/0x1c0 [ 13.509219][ T199] Preemption disabled at: [ 13.509219][ T199] [<0000000000000000>] 0x0 [ 13.509227][ T199] CPU: 3 UID: 0 PID: 199 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.509230][ T199] Tainted: [W]=WARN [ 13.509231][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.509233][ T199] Call Trace: [ 13.509235][ T199] [ 13.509236][ T199] dump_stack_lvl+0x6f/0xa0 [ 13.509242][ T199] __might_resched.cold+0x1fe/0x2c1 [ 13.509246][ T199] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.509250][ T199] ? __kmalloc_noprof+0xdb/0x760 [ 13.509255][ T199] __kmalloc_noprof+0x443/0x760 [ 13.509257][ T199] ? alloc_buf.isra.0+0x4b/0x260 [ 13.509264][ T199] ? do_raw_spin_unlock+0x59/0x250 [ 13.509267][ T199] alloc_buf.isra.0+0x4b/0x260 [ 13.509270][ T199] put_chars+0x1e1/0x2f0 [ 13.509273][ T199] ? __send_to_port+0x420/0x420 [ 13.509275][ T199] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.509279][ T199] ? validate_chain+0x38b/0xc20 [ 13.509284][ T199] hvc_console_print+0x292/0x780 [ 13.509291][ T199] ? hvc_write+0x3a0/0x3a0 [ 13.509293][ T199] ? rcu_is_watching+0x16/0xd0 [ 13.509295][ T199] ? lock_acquire+0x13c/0x160 [ 13.509300][ T199] console_emit_next_record+0x22f/0x4c0 [ 13.509303][ T199] ? devkmsg_read+0x4b0/0x4b0 [ 13.509305][ T199] ? console_flush_one_record+0x106/0x710 [ 13.509307][ T199] ? rcu_is_watching+0x16/0xd0 [ 13.509309][ T199] ? lock_acquire+0x13c/0x160 [ 13.509313][ T199] console_flush_one_record+0x46f/0x710 [ 13.509317][ T199] ? console_emit_next_record+0x4c0/0x4c0 [ 13.509318][ T199] ? __lock_acquire+0x518/0xc20 [ 13.509324][ T199] console_unlock+0xee/0x1f0 [ 13.509326][ T199] ? console_flush_one_record+0x710/0x710 [ 13.509327][ T199] ? rcu_is_watching+0x16/0xd0 [ 13.509329][ T199] ? lock_acquire+0x60/0x160 [ 13.509333][ T199] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.509335][ T199] ? vprintk_emit+0x320/0x3e0 [ 13.509338][ T199] vprintk_emit+0x37c/0x3e0 [ 13.509341][ T199] ? wake_up_klogd_work_func+0x90/0x90 [ 13.509344][ T199] ? __lock_acquire+0x518/0xc20 [ 13.509348][ T199] _printk+0xc7/0x100 [ 13.509352][ T199] ? snapshot_read.cold+0x21/0x21 [ 13.509355][ T199] ? do_raw_spin_lock+0x131/0x280 [ 13.509358][ T199] ? __rwlock_init+0x150/0x150 [ 13.509362][ T199] ? do_raw_spin_lock+0x131/0x280 [ 13.509365][ T199] do_exit.cold+0x82/0x9c [ 13.509369][ T199] ? exit_notify+0x890/0x890 [ 13.509370][ T199] ? __lock_release.isra.0+0x69/0x1a0 [ 13.509373][ T199] ? rcu_is_watching+0x16/0xd0 [ 13.509377][ T199] do_group_exit+0xb8/0x370 [ 13.509380][ T199] __x64_sys_exit_group+0x3c/0x50 [ 13.509382][ T199] x64_sys_call+0x1567/0x1570 [ 13.509385][ T199] do_syscall_64+0xff/0x530 [ 13.509389][ T199] ? irq_exit_rcu+0x1a/0x30 [ 13.509392][ T199] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.509394][ T199] RIP: 0033:0x479678 [ 13.509396][ T199] Code: Unable to access opcode bytes at 0x47964e. [ 13.509397][ T199] RSP: 002b:00007ffe28ff65f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.509400][ T199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 13.509401][ T199] RDX: 0000000003098708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 13.509402][ T199] RBP: 00007ffe28ff6650 R08: 0000000000000000 R09: 00000000030993e0 [ 13.509403][ T199] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe28ff6788 [ 13.509404][ T199] R13: 00007ffe28ff6810 R14: 0000000000000000 R15: 000000000054d560 [ 13.509411][ T199] [ 15.254470][ T155] perl (155) used greatest stack depth: 23840 bytes left [ 15.254486][ T155] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 15.254489][ T155] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 155, name: perl [ 15.254490][ T155] preempt_count: 2, expected: 0 [ 15.254491][ T155] RCU nest depth: 0, expected: 0 [ 15.254492][ T155] locks held by perl/155: 5, last CPU#3: [ 15.254494][ T155] #0: ffffffff990027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 15.254507][ T155] #1: ffffffff99169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 15.254513][ T155] #2: ffffffff99169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 15.254517][ T155] #3: ffffffff99089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 15.254520][ T155] #4: ffffffff99089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 15.254524][ T155] irq event stamp: 77576 [ 15.254524][ T155] hardirqs last enabled at (77575): [] __down_trylock_console_sem+0x86/0xa0 [ 15.254528][ T155] hardirqs last disabled at (77576): [] console_emit_next_record+0x3d4/0x4c0 [ 15.254529][ T155] softirqs last enabled at (77242): [] handle_softirqs+0x67c/0x900 [ 15.254532][ T155] softirqs last disabled at (77093): [] __irq_exit_rcu+0x145/0x1c0 [ 15.254534][ T155] Preemption disabled at: [ 15.254535][ T155] [<0000000000000000>] 0x0 [ 15.254542][ T155] CPU: 3 UID: 0 PID: 155 Comm: perl Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 15.254545][ T155] Tainted: [W]=WARN [ 15.254546][ T155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.254548][ T155] Call Trace: [ 15.254549][ T155] [ 15.254551][ T155] dump_stack_lvl+0x6f/0xa0 [ 15.254557][ T155] __might_resched.cold+0x1fe/0x2c1 [ 15.254561][ T155] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 15.254565][ T155] ? __kmalloc_noprof+0xdb/0x760 [ 15.254570][ T155] __kmalloc_noprof+0x443/0x760 [ 15.254573][ T155] ? alloc_buf.isra.0+0x4b/0x260 [ 15.254579][ T155] ? do_raw_spin_unlock+0x59/0x250 [ 15.254582][ T155] alloc_buf.isra.0+0x4b/0x260 [ 15.254585][ T155] put_chars+0x1e1/0x2f0 [ 15.254588][ T155] ? __send_to_port+0x420/0x420 [ 15.254590][ T155] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 15.254594][ T155] ? validate_chain+0x38b/0xc20 [ 15.254600][ T155] hvc_console_print+0x292/0x780 [ 15.254607][ T155] ? hvc_write+0x3a0/0x3a0 [ 15.254609][ T155] ? rcu_is_watching+0x16/0xd0 [ 15.254611][ T155] ? lock_acquire+0x13c/0x160 [ 15.254615][ T155] console_emit_next_record+0x22f/0x4c0 [ 15.254619][ T155] ? devkmsg_read+0x4b0/0x4b0 [ 15.254620][ T155] ? console_flush_one_record+0x106/0x710 [ 15.254623][ T155] ? rcu_is_watching+0x16/0xd0 [ 15.254625][ T155] ? lock_acquire+0x13c/0x160 [ 15.254629][ T155] console_flush_one_record+0x46f/0x710 [ 15.254632][ T155] ? console_emit_next_record+0x4c0/0x4c0 [ 15.254634][ T155] ? __lock_acquire+0x518/0xc20 [ 15.254639][ T155] console_unlock+0xee/0x1f0 [ 15.254641][ T155] ? console_flush_one_record+0x710/0x710 [ 15.254643][ T155] ? rcu_is_watching+0x16/0xd0 [ 15.254645][ T155] ? lock_acquire+0x60/0x160 [ 15.254649][ T155] ? __down_trylock_console_sem+0x5e/0xa0 [ 15.254651][ T155] ? vprintk_emit+0x320/0x3e0 [ 15.254653][ T155] vprintk_emit+0x37c/0x3e0 [ 15.254657][ T155] ? wake_up_klogd_work_func+0x90/0x90 [ 15.254660][ T155] ? __lock_acquire+0x518/0xc20 [ 15.254664][ T155] _printk+0xc7/0x100 [ 15.254668][ T155] ? snapshot_read.cold+0x21/0x21 [ 15.254670][ T155] ? do_raw_spin_lock+0x131/0x280 [ 15.254673][ T155] ? __rwlock_init+0x150/0x150 [ 15.254677][ T155] ? do_raw_spin_lock+0x131/0x280 [ 15.254680][ T155] do_exit.cold+0x82/0x9c [ 15.254684][ T155] ? exit_notify+0x890/0x890 [ 15.254685][ T155] ? __lock_release.isra.0+0x69/0x1a0 [ 15.254688][ T155] ? rcu_is_watching+0x16/0xd0 [ 15.254692][ T155] do_group_exit+0xb8/0x370 [ 15.254695][ T155] __x64_sys_exit_group+0x3c/0x50 [ 15.254697][ T155] x64_sys_call+0x1567/0x1570 [ 15.254700][ T155] do_syscall_64+0xff/0x530 [ 15.254704][ T155] ? exc_page_fault+0xee/0x100 [ 15.254707][ T155] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.254709][ T155] RIP: 0033:0x7f8c4b03f1b8 [ 15.254711][ T155] Code: Unable to access opcode bytes at 0x7f8c4b03f18e. [ 15.254712][ T155] RSP: 002b:00007fff91f97e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.254715][ T155] RAX: ffffffffffffffda RBX: 00007f8c4b16ff88 RCX: 00007f8c4b03f1b8 [ 15.254716][ T155] RDX: 00007f8c4ae2dcc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 15.254717][ T155] RBP: 00007fff91f97eb0 R08: 0000000000000000 R09: 0000000000000050 [ 15.254718][ T155] R10: 00007fff91f97cb0 R11: 0000000000000246 R12: 0000000000000001 [ 15.254719][ T155] R13: 0000000000000000 R14: 00007f8c4b16e680 R15: 00007f8c4b16ffa0 [ 15.254726][ T155]