[ 10.035586][ T200] packetdrill (200) used greatest stack depth: 23744 bytes left [ 10.035602][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.035604][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 10.035605][ T200] preempt_count: 2, expected: 0 [ 10.035606][ T200] RCU nest depth: 0, expected: 0 [ 10.035607][ T200] locks held by packetdrill/200: 5, last CPU#3: [ 10.035609][ T200] #0: ffffffffaa0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.035621][ T200] #1: ffffffffaa169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.035626][ T200] #2: ffffffffaa169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.035629][ T200] #3: ffffffffaa089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.035632][ T200] #4: ffffffffaa089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.035636][ T200] irq event stamp: 4259002 [ 10.035637][ T200] hardirqs last enabled at (4259001): [] __down_trylock_console_sem+0x86/0xa0 [ 10.035640][ T200] hardirqs last disabled at (4259002): [] console_emit_next_record+0x3d4/0x4c0 [ 10.035642][ T200] softirqs last enabled at (4258770): [] tcp_close+0x2b/0xb0 [ 10.035646][ T200] softirqs last disabled at (4258768): [] release_sock+0x21/0x240 [ 10.035649][ T200] Preemption disabled at: [ 10.035650][ T200] [<0000000000000000>] 0x0 [ 10.035656][ T200] CPU: 3 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.035660][ T200] Tainted: [W]=WARN [ 10.035661][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.035662][ T200] Call Trace: [ 10.035664][ T200] [ 10.035665][ T200] dump_stack_lvl+0x6f/0xa0 [ 10.035671][ T200] __might_resched.cold+0x1fe/0x2c1 [ 10.035675][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.035678][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 10.035684][ T200] __kmalloc_noprof+0x443/0x760 [ 10.035686][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 10.035692][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 10.035695][ T200] alloc_buf.isra.0+0x4b/0x260 [ 10.035698][ T200] put_chars+0x1e1/0x2f0 [ 10.035701][ T200] ? __send_to_port+0x420/0x420 [ 10.035702][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.035707][ T200] ? validate_chain+0x38b/0xc20 [ 10.035712][ T200] hvc_console_print+0x292/0x780 [ 10.035718][ T200] ? hvc_write+0x3a0/0x3a0 [ 10.035721][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.035723][ T200] ? lock_acquire+0x13c/0x160 [ 10.035727][ T200] console_emit_next_record+0x22f/0x4c0 [ 10.035730][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 10.035731][ T200] ? console_flush_one_record+0x106/0x710 [ 10.035734][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.035735][ T200] ? lock_acquire+0x13c/0x160 [ 10.035739][ T200] console_flush_one_record+0x46f/0x710 [ 10.035743][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 10.035744][ T200] ? __lock_acquire+0x518/0xc20 [ 10.035749][ T200] console_unlock+0xee/0x1f0 [ 10.035751][ T200] ? console_flush_one_record+0x710/0x710 [ 10.035753][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.035754][ T200] ? lock_acquire+0x60/0x160 [ 10.035758][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.035760][ T200] ? vprintk_emit+0x320/0x3e0 [ 10.035763][ T200] vprintk_emit+0x37c/0x3e0 [ 10.035766][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 10.035768][ T200] ? __lock_acquire+0x518/0xc20 [ 10.035772][ T200] _printk+0xc7/0x100 [ 10.035776][ T200] ? snapshot_read.cold+0x21/0x21 [ 10.035778][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.035781][ T200] ? __rwlock_init+0x150/0x150 [ 10.035785][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.035788][ T200] do_exit.cold+0x82/0x9c [ 10.035791][ T200] ? exit_notify+0x890/0x890 [ 10.035793][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 10.035795][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.035799][ T200] do_group_exit+0xb8/0x370 [ 10.035802][ T200] __x64_sys_exit_group+0x3c/0x50 [ 10.035804][ T200] x64_sys_call+0x1567/0x1570 [ 10.035807][ T200] do_syscall_64+0xff/0x530 [ 10.035810][ T200] ? irq_exit_rcu+0x1a/0x30 [ 10.035813][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.035815][ T200] RIP: 0033:0x479678 [ 10.035817][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 10.035818][ T200] RSP: 002b:00007ffe669ffbb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.035821][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.035822][ T200] RDX: 000000003c571708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.035823][ T200] RBP: 00007ffe669ffc10 R08: 0000000000000000 R09: 000000003c5723e0 [ 10.035824][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe669ffd48 [ 10.035825][ T200] R13: 00007ffe669ffdd0 R14: 0000000000000000 R15: 000000000054d560 [ 10.035831][ T200]