[ 11.001283][ T200] packetdrill (200) used greatest stack depth: 24040 bytes left [ 11.001301][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.001303][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 11.001306][ T200] preempt_count: 2, expected: 0 [ 11.001307][ T200] RCU nest depth: 0, expected: 0 [ 11.001309][ T200] locks held by packetdrill/200: 5, last CPU#2: [ 11.001311][ T200] #0: ffffffffa44027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.001325][ T200] #1: ffffffffa4569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.001330][ T200] #2: ffffffffa4569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.001334][ T200] #3: ffffffffa4489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.001338][ T200] #4: ffffffffa4489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.001341][ T200] irq event stamp: 4231210 [ 11.001342][ T200] hardirqs last enabled at (4231209): [] __down_trylock_console_sem+0x86/0xa0 [ 11.001345][ T200] hardirqs last disabled at (4231210): [] console_emit_next_record+0x3d4/0x4c0 [ 11.001347][ T200] softirqs last enabled at (4230980): [] tcp_close+0x2b/0xb0 [ 11.001351][ T200] softirqs last disabled at (4230978): [] release_sock+0x21/0x240 [ 11.001355][ T200] Preemption disabled at: [ 11.001355][ T200] [<0000000000000000>] 0x0 [ 11.001363][ T200] CPU: 2 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.001367][ T200] Tainted: [W]=WARN [ 11.001368][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.001369][ T200] Call Trace: [ 11.001371][ T200] [ 11.001372][ T200] dump_stack_lvl+0x6f/0xa0 [ 11.001378][ T200] __might_resched.cold+0x1fe/0x2c1 [ 11.001382][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.001386][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 11.001391][ T200] __kmalloc_noprof+0x443/0x760 [ 11.001394][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 11.001400][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.001403][ T200] alloc_buf.isra.0+0x4b/0x260 [ 11.001407][ T200] put_chars+0x1e1/0x2f0 [ 11.001410][ T200] ? __send_to_port+0x420/0x420 [ 11.001411][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.001416][ T200] ? validate_chain+0x38b/0xc20 [ 11.001421][ T200] hvc_console_print+0x292/0x780 [ 11.001428][ T200] ? hvc_write+0x3a0/0x3a0 [ 11.001431][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.001433][ T200] ? lock_acquire+0x13c/0x160 [ 11.001437][ T200] console_emit_next_record+0x22f/0x4c0 [ 11.001440][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 11.001442][ T200] ? console_flush_one_record+0x106/0x710 [ 11.001445][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.001447][ T200] ? lock_acquire+0x13c/0x160 [ 11.001451][ T200] console_flush_one_record+0x46f/0x710 [ 11.001454][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 11.001456][ T200] ? __lock_acquire+0x518/0xc20 [ 11.001461][ T200] console_unlock+0xee/0x1f0 [ 11.001464][ T200] ? console_flush_one_record+0x710/0x710 [ 11.001465][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.001467][ T200] ? lock_acquire+0x60/0x160 [ 11.001471][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.001473][ T200] ? vprintk_emit+0x320/0x3e0 [ 11.001476][ T200] vprintk_emit+0x37c/0x3e0 [ 11.001479][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 11.001482][ T200] ? __lock_acquire+0x518/0xc20 [ 11.001486][ T200] _printk+0xc7/0x100 [ 11.001490][ T200] ? snapshot_read.cold+0x21/0x21 [ 11.001493][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.001496][ T200] ? __rwlock_init+0x150/0x150 [ 11.001500][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.001503][ T200] do_exit.cold+0x82/0x9c [ 11.001506][ T200] ? exit_notify+0x890/0x890 [ 11.001508][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 11.001511][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.001515][ T200] do_group_exit+0xb8/0x370 [ 11.001518][ T200] __x64_sys_exit_group+0x3c/0x50 [ 11.001520][ T200] x64_sys_call+0x1567/0x1570 [ 11.001523][ T200] do_syscall_64+0xff/0x530 [ 11.001527][ T200] ? irq_exit_rcu+0x1a/0x30 [ 11.001530][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.001532][ T200] RIP: 0033:0x479678 [ 11.001535][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 11.001536][ T200] RSP: 002b:00007ffe08d218b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.001539][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.001540][ T200] RDX: 0000000008a01708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.001541][ T200] RBP: 00007ffe08d21910 R08: 0000000000000000 R09: 0000000008a023e0 [ 11.001542][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe08d21a48 [ 11.001543][ T200] R13: 00007ffe08d21ad0 R14: 0000000000000000 R15: 000000000054d560 [ 11.001549][ T200]