[ 9.695225][ T167] packetdrill (167) used greatest stack depth: 24752 bytes left [ 9.695242][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.695244][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: packetdrill [ 9.695246][ T167] preempt_count: 2, expected: 0 [ 9.695247][ T167] RCU nest depth: 0, expected: 0 [ 9.695247][ T167] locks held by packetdrill/167: 5, last CPU#2: [ 9.695249][ T167] #0: ffffffffb5e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.695262][ T167] #1: ffffffffb5f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.695267][ T167] #2: ffffffffb5f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.695270][ T167] #3: ffffffffb5e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.695273][ T167] #4: ffffffffb5e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.695277][ T167] irq event stamp: 4022030 [ 9.695278][ T167] hardirqs last enabled at (4022029): [] __down_trylock_console_sem+0x86/0xa0 [ 9.695281][ T167] hardirqs last disabled at (4022030): [] console_emit_next_record+0x3d4/0x4c0 [ 9.695282][ T167] softirqs last enabled at (4021802): [] tcp_close+0x2b/0xb0 [ 9.695286][ T167] softirqs last disabled at (4021800): [] release_sock+0x21/0x240 [ 9.695290][ T167] Preemption disabled at: [ 9.695291][ T167] [<0000000000000000>] 0x0 [ 9.695297][ T167] CPU: 2 UID: 0 PID: 167 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.695301][ T167] Tainted: [W]=WARN [ 9.695302][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.695304][ T167] Call Trace: [ 9.695305][ T167] [ 9.695307][ T167] dump_stack_lvl+0x6f/0xa0 [ 9.695312][ T167] __might_resched.cold+0x1fe/0x2c1 [ 9.695317][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.695320][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 9.695325][ T167] __kmalloc_noprof+0x443/0x760 [ 9.695328][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 9.695333][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 9.695336][ T167] alloc_buf.isra.0+0x4b/0x260 [ 9.695339][ T167] put_chars+0x1e1/0x2f0 [ 9.695342][ T167] ? __send_to_port+0x420/0x420 [ 9.695344][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.695348][ T167] ? validate_chain+0x38b/0xc20 [ 9.695353][ T167] hvc_console_print+0x292/0x780 [ 9.695360][ T167] ? hvc_write+0x3a0/0x3a0 [ 9.695362][ T167] ? rcu_is_watching+0x16/0xd0 [ 9.695364][ T167] ? lock_acquire+0x13c/0x160 [ 9.695368][ T167] console_emit_next_record+0x22f/0x4c0 [ 9.695371][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 9.695372][ T167] ? console_flush_one_record+0x106/0x710 [ 9.695375][ T167] ? rcu_is_watching+0x16/0xd0 [ 9.695377][ T167] ? lock_acquire+0x13c/0x160 [ 9.695380][ T167] console_flush_one_record+0x46f/0x710 [ 9.695384][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 9.695385][ T167] ? __lock_acquire+0x518/0xc20 [ 9.695391][ T167] console_unlock+0xee/0x1f0 [ 9.695393][ T167] ? console_flush_one_record+0x710/0x710 [ 9.695394][ T167] ? rcu_is_watching+0x16/0xd0 [ 9.695396][ T167] ? lock_acquire+0x60/0x160 [ 9.695399][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.695401][ T167] ? vprintk_emit+0x320/0x3e0 [ 9.695404][ T167] vprintk_emit+0x37c/0x3e0 [ 9.695407][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 9.695410][ T167] ? __lock_acquire+0x518/0xc20 [ 9.695413][ T167] _printk+0xc7/0x100 [ 9.695417][ T167] ? snapshot_read.cold+0x21/0x21 [ 9.695420][ T167] ? do_raw_spin_lock+0x131/0x280 [ 9.695422][ T167] ? __rwlock_init+0x150/0x150 [ 9.695426][ T167] ? do_raw_spin_lock+0x131/0x280 [ 9.695429][ T167] do_exit.cold+0x82/0x9c [ 9.695432][ T167] ? exit_notify+0x890/0x890 [ 9.695434][ T167] ? __lock_release.isra.0+0x69/0x1a0 [ 9.695436][ T167] ? rcu_is_watching+0x16/0xd0 [ 9.695440][ T167] do_group_exit+0xb8/0x370 [ 9.695443][ T167] __x64_sys_exit_group+0x3c/0x50 [ 9.695445][ T167] x64_sys_call+0x1567/0x1570 [ 9.695447][ T167] do_syscall_64+0xff/0x530 [ 9.695451][ T167] ? irq_exit_rcu+0x1a/0x30 [ 9.695454][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.695456][ T167] RIP: 0033:0x479678 [ 9.695458][ T167] Code: Unable to access opcode bytes at 0x47964e. [ 9.695459][ T167] RSP: 002b:00007ffdd7ff98f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.695462][ T167] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.695463][ T167] RDX: 000000000f5dc708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 9.695464][ T167] RBP: 00007ffdd7ff9950 R08: 0000000000000000 R09: 000000000f5dd3e0 [ 9.695465][ T167] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffdd7ff9a88 [ 9.695466][ T167] R13: 00007ffdd7ff9b10 R14: 0000000000000000 R15: 000000000054d560 [ 9.695472][ T167] [ 10.486939][ T200] packetdrill (200) used greatest stack depth: 24552 bytes left