[ 11.581260][ T200] packetdrill (200) used greatest stack depth: 23504 bytes left [ 11.581276][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.581278][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 11.581280][ T200] preempt_count: 2, expected: 0 [ 11.581280][ T200] RCU nest depth: 0, expected: 0 [ 11.581281][ T200] locks held by packetdrill/200: 5, last CPU#1: [ 11.581284][ T200] #0: ffffffffa16027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.581296][ T200] #1: ffffffffa1769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.581301][ T200] #2: ffffffffa1769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.581304][ T200] #3: ffffffffa1689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.581307][ T200] #4: ffffffffa1689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.581311][ T200] irq event stamp: 3930450 [ 11.581312][ T200] hardirqs last enabled at (3930449): [] __down_trylock_console_sem+0x86/0xa0 [ 11.581315][ T200] hardirqs last disabled at (3930450): [] console_emit_next_record+0x3d4/0x4c0 [ 11.581317][ T200] softirqs last enabled at (3930220): [] tcp_close+0x2b/0xb0 [ 11.581321][ T200] softirqs last disabled at (3930218): [] release_sock+0x21/0x240 [ 11.581325][ T200] Preemption disabled at: [ 11.581326][ T200] [<0000000000000000>] 0x0 [ 11.581333][ T200] CPU: 1 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.581336][ T200] Tainted: [W]=WARN [ 11.581337][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.581339][ T200] Call Trace: [ 11.581341][ T200] [ 11.581342][ T200] dump_stack_lvl+0x6f/0xa0 [ 11.581348][ T200] __might_resched.cold+0x1fe/0x2c1 [ 11.581352][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.581355][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 11.581361][ T200] __kmalloc_noprof+0x443/0x760 [ 11.581363][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 11.581369][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.581372][ T200] alloc_buf.isra.0+0x4b/0x260 [ 11.581376][ T200] put_chars+0x1e1/0x2f0 [ 11.581379][ T200] ? __send_to_port+0x420/0x420 [ 11.581380][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.581385][ T200] ? validate_chain+0x38b/0xc20 [ 11.581390][ T200] hvc_console_print+0x292/0x780 [ 11.581397][ T200] ? hvc_write+0x3a0/0x3a0 [ 11.581399][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.581401][ T200] ? lock_acquire+0x13c/0x160 [ 11.581405][ T200] console_emit_next_record+0x22f/0x4c0 [ 11.581409][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 11.581410][ T200] ? console_flush_one_record+0x106/0x710 [ 11.581413][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.581415][ T200] ? lock_acquire+0x13c/0x160 [ 11.581419][ T200] console_flush_one_record+0x46f/0x710 [ 11.581423][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 11.581424][ T200] ? __lock_acquire+0x518/0xc20 [ 11.581429][ T200] console_unlock+0xee/0x1f0 [ 11.581432][ T200] ? console_flush_one_record+0x710/0x710 [ 11.581433][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.581435][ T200] ? lock_acquire+0x60/0x160 [ 11.581439][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.581441][ T200] ? vprintk_emit+0x320/0x3e0 [ 11.581443][ T200] vprintk_emit+0x37c/0x3e0 [ 11.581447][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 11.581448][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.581451][ T200] ? __lock_acquire+0x518/0xc20 [ 11.581455][ T200] _printk+0xc7/0x100 [ 11.581459][ T200] ? snapshot_read.cold+0x21/0x21 [ 11.581462][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.581465][ T200] ? __rwlock_init+0x150/0x150 [ 11.581469][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.581472][ T200] do_exit.cold+0x82/0x9c [ 11.581475][ T200] ? exit_notify+0x890/0x890 [ 11.581477][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 11.581480][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.581484][ T200] do_group_exit+0xb8/0x370 [ 11.581490][ T200] __x64_sys_exit_group+0x3c/0x50 [ 11.581492][ T200] x64_sys_call+0x1567/0x1570 [ 11.581495][ T200] do_syscall_64+0xff/0x530 [ 11.581499][ T200] ? irq_exit_rcu+0x1a/0x30 [ 11.581502][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.581505][ T200] RIP: 0033:0x479678 [ 11.581507][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 11.581508][ T200] RSP: 002b:00007ffd29d489b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.581510][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.581512][ T200] RDX: 000000002e936708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.581513][ T200] RBP: 00007ffd29d48a10 R08: 0000000000000000 R09: 000000002e9373e0 [ 11.581514][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd29d48b48 [ 11.581515][ T200] R13: 00007ffd29d48bd0 R14: 0000000000000000 R15: 000000000054d560 [ 11.581521][ T200]