[ 12.079191][ T168] packetdrill (168) used greatest stack depth: 24152 bytes left [ 12.079207][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.079209][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 12.079211][ T168] preempt_count: 2, expected: 0 [ 12.079212][ T168] RCU nest depth: 0, expected: 0 [ 12.079213][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 12.079215][ T168] #0: ffffffff89a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.079227][ T168] #1: ffffffff89b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.079232][ T168] #2: ffffffff89b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.079236][ T168] #3: ffffffff89a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.079239][ T168] #4: ffffffff89a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.079242][ T168] irq event stamp: 2207532 [ 12.079243][ T168] hardirqs last enabled at (2207531): [] __down_trylock_console_sem+0x86/0xa0 [ 12.079246][ T168] hardirqs last disabled at (2207532): [] console_emit_next_record+0x3d4/0x4c0 [ 12.079248][ T168] softirqs last enabled at (2207282): [] tcp_close+0x2b/0xb0 [ 12.079252][ T168] softirqs last disabled at (2207280): [] release_sock+0x21/0x240 [ 12.079256][ T168] Preemption disabled at: [ 12.079257][ T168] [<0000000000000000>] 0x0 [ 12.079263][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.079267][ T168] Tainted: [W]=WARN [ 12.079268][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.079269][ T168] Call Trace: [ 12.079271][ T168] [ 12.079272][ T168] dump_stack_lvl+0x6f/0xa0 [ 12.079278][ T168] __might_resched.cold+0x1fe/0x2c1 [ 12.079282][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.079286][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 12.079291][ T168] __kmalloc_noprof+0x443/0x760 [ 12.079294][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 12.079300][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 12.079303][ T168] alloc_buf.isra.0+0x4b/0x260 [ 12.079306][ T168] put_chars+0x1e1/0x2f0 [ 12.079309][ T168] ? __send_to_port+0x420/0x420 [ 12.079311][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.079315][ T168] ? validate_chain+0x38b/0xc20 [ 12.079321][ T168] hvc_console_print+0x292/0x780 [ 12.079328][ T168] ? hvc_write+0x3a0/0x3a0 [ 12.079330][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.079332][ T168] ? lock_acquire+0x13c/0x160 [ 12.079337][ T168] console_emit_next_record+0x22f/0x4c0 [ 12.079340][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 12.079341][ T168] ? console_flush_one_record+0x106/0x710 [ 12.079344][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.079346][ T168] ? lock_acquire+0x13c/0x160 [ 12.079350][ T168] console_flush_one_record+0x46f/0x710 [ 12.079354][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 12.079356][ T168] ? __lock_acquire+0x518/0xc20 [ 12.079361][ T168] console_unlock+0xee/0x1f0 [ 12.079364][ T168] ? console_flush_one_record+0x710/0x710 [ 12.079365][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.079367][ T168] ? lock_acquire+0x60/0x160 [ 12.079371][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.079373][ T168] ? vprintk_emit+0x320/0x3e0 [ 12.079376][ T168] vprintk_emit+0x37c/0x3e0 [ 12.079379][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 12.079380][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 12.079384][ T168] ? __lock_acquire+0x518/0xc20 [ 12.079388][ T168] _printk+0xc7/0x100 [ 12.079392][ T168] ? snapshot_read.cold+0x21/0x21 [ 12.079395][ T168] ? do_raw_spin_lock+0x131/0x280 [ 12.079397][ T168] ? __rwlock_init+0x150/0x150 [ 12.079402][ T168] ? do_raw_spin_lock+0x131/0x280 [ 12.079405][ T168] do_exit.cold+0x82/0x9c [ 12.079408][ T168] ? exit_notify+0x890/0x890 [ 12.079410][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 12.079413][ T168] ? rcu_is_watching+0x16/0xd0 [ 12.079416][ T168] do_group_exit+0xb8/0x370 [ 12.079419][ T168] __x64_sys_exit_group+0x3c/0x50 [ 12.079421][ T168] x64_sys_call+0x1567/0x1570 [ 12.079424][ T168] do_syscall_64+0xff/0x530 [ 12.079428][ T168] ? irq_exit_rcu+0x1a/0x30 [ 12.079431][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.079433][ T168] RIP: 0033:0x479678 [ 12.079435][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 12.079436][ T168] RSP: 002b:00007fff28d5af78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.079439][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.079440][ T168] RDX: 000000000748d708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.079441][ T168] RBP: 00007fff28d5afd0 R08: 0000000000000000 R09: 000000000748e3e0 [ 12.079442][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff28d5b108 [ 12.079443][ T168] R13: 00007fff28d5b190 R14: 0000000000000000 R15: 000000000054d560 [ 12.079450][ T168]