[ 11.196320][ T168] packetdrill (168) used greatest stack depth: 23856 bytes left [ 11.196339][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.196340][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 11.196343][ T168] preempt_count: 2, expected: 0 [ 11.196344][ T168] RCU nest depth: 0, expected: 0 [ 11.196345][ T168] locks held by packetdrill/168: 5, last CPU#2: [ 11.196347][ T168] #0: ffffffffa62027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.196359][ T168] #1: ffffffffa6369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.196364][ T168] #2: ffffffffa6369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.196368][ T168] #3: ffffffffa6289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.196371][ T168] #4: ffffffffa6289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.196374][ T168] irq event stamp: 4219800 [ 11.196375][ T168] hardirqs last enabled at (4219799): [] __down_trylock_console_sem+0x86/0xa0 [ 11.196379][ T168] hardirqs last disabled at (4219800): [] console_emit_next_record+0x3d4/0x4c0 [ 11.196380][ T168] softirqs last enabled at (4219552): [] tcp_close+0x2b/0xb0 [ 11.196385][ T168] softirqs last disabled at (4219550): [] release_sock+0x21/0x240 [ 11.196388][ T168] Preemption disabled at: [ 11.196389][ T168] [<0000000000000000>] 0x0 [ 11.196396][ T168] CPU: 2 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.196400][ T168] Tainted: [W]=WARN [ 11.196401][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.196403][ T168] Call Trace: [ 11.196404][ T168] [ 11.196406][ T168] dump_stack_lvl+0x6f/0xa0 [ 11.196412][ T168] __might_resched.cold+0x1fe/0x2c1 [ 11.196416][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.196419][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 11.196425][ T168] __kmalloc_noprof+0x443/0x760 [ 11.196427][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 11.196433][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.196436][ T168] alloc_buf.isra.0+0x4b/0x260 [ 11.196439][ T168] put_chars+0x1e1/0x2f0 [ 11.196443][ T168] ? __send_to_port+0x420/0x420 [ 11.196444][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.196448][ T168] ? validate_chain+0x38b/0xc20 [ 11.196454][ T168] hvc_console_print+0x292/0x780 [ 11.196460][ T168] ? hvc_write+0x3a0/0x3a0 [ 11.196462][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.196464][ T168] ? lock_acquire+0x13c/0x160 [ 11.196468][ T168] console_emit_next_record+0x22f/0x4c0 [ 11.196472][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 11.196473][ T168] ? console_flush_one_record+0x106/0x710 [ 11.196476][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.196477][ T168] ? lock_acquire+0x13c/0x160 [ 11.196481][ T168] console_flush_one_record+0x46f/0x710 [ 11.196485][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 11.196486][ T168] ? __lock_acquire+0x518/0xc20 [ 11.196491][ T168] console_unlock+0xee/0x1f0 [ 11.196494][ T168] ? console_flush_one_record+0x710/0x710 [ 11.196495][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.196497][ T168] ? lock_acquire+0x60/0x160 [ 11.196500][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.196502][ T168] ? vprintk_emit+0x320/0x3e0 [ 11.196505][ T168] vprintk_emit+0x37c/0x3e0 [ 11.196508][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 11.196509][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.196513][ T168] ? __lock_acquire+0x518/0xc20 [ 11.196516][ T168] _printk+0xc7/0x100 [ 11.196520][ T168] ? snapshot_read.cold+0x21/0x21 [ 11.196523][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.196525][ T168] ? __rwlock_init+0x150/0x150 [ 11.196529][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.196532][ T168] do_exit.cold+0x82/0x9c [ 11.196536][ T168] ? exit_notify+0x890/0x890 [ 11.196537][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 11.196540][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.196544][ T168] do_group_exit+0xb8/0x370 [ 11.196546][ T168] __x64_sys_exit_group+0x3c/0x50 [ 11.196548][ T168] x64_sys_call+0x1567/0x1570 [ 11.196551][ T168] do_syscall_64+0xff/0x530 [ 11.196555][ T168] ? irq_exit_rcu+0x1a/0x30 [ 11.196557][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.196560][ T168] RIP: 0033:0x479678 [ 11.196562][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 11.196563][ T168] RSP: 002b:00007ffca65bb668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.196566][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.196567][ T168] RDX: 000000001db0b708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.196568][ T168] RBP: 00007ffca65bb6c0 R08: 0000000000000000 R09: 000000001db0c3e0 [ 11.196569][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffca65bb7f8 [ 11.196570][ T168] R13: 00007ffca65bb880 R14: 0000000000000000 R15: 000000000054d560 [ 11.196576][ T168]