[ 11.536337][ T198] packetdrill (198) used greatest stack depth: 24376 bytes left [ 11.536356][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.536359][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 11.536360][ T198] preempt_count: 2, expected: 0 [ 11.536361][ T198] RCU nest depth: 0, expected: 0 [ 11.536362][ T198] locks held by packetdrill/198: 5, last CPU#1: [ 11.536364][ T198] #0: ffffffffb3a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.536377][ T198] #1: ffffffffb3b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.536382][ T198] #2: ffffffffb3b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.536386][ T198] #3: ffffffffb3a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.536389][ T198] #4: ffffffffb3a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.536392][ T198] irq event stamp: 4127810 [ 11.536393][ T198] hardirqs last enabled at (4127809): [] __down_trylock_console_sem+0x86/0xa0 [ 11.536397][ T198] hardirqs last disabled at (4127810): [] console_emit_next_record+0x3d4/0x4c0 [ 11.536399][ T198] softirqs last enabled at (4125880): [] handle_softirqs+0x67c/0x900 [ 11.536401][ T198] softirqs last disabled at (4125619): [] __irq_exit_rcu+0x145/0x1c0 [ 11.536403][ T198] Preemption disabled at: [ 11.536404][ T198] [<0000000000000000>] 0x0 [ 11.536411][ T198] CPU: 1 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.536414][ T198] Tainted: [W]=WARN [ 11.536415][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.536417][ T198] Call Trace: [ 11.536418][ T198] [ 11.536420][ T198] dump_stack_lvl+0x6f/0xa0 [ 11.536425][ T198] __might_resched.cold+0x1fe/0x2c1 [ 11.536430][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.536433][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 11.536439][ T198] __kmalloc_noprof+0x443/0x760 [ 11.536441][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 11.536448][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.536450][ T198] alloc_buf.isra.0+0x4b/0x260 [ 11.536454][ T198] put_chars+0x1e1/0x2f0 [ 11.536457][ T198] ? __send_to_port+0x420/0x420 [ 11.536459][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.536463][ T198] ? validate_chain+0x38b/0xc20 [ 11.536468][ T198] hvc_console_print+0x292/0x780 [ 11.536475][ T198] ? hvc_write+0x3a0/0x3a0 [ 11.536478][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.536479][ T198] ? lock_acquire+0x13c/0x160 [ 11.536484][ T198] console_emit_next_record+0x22f/0x4c0 [ 11.536487][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 11.536488][ T198] ? console_flush_one_record+0x106/0x710 [ 11.536491][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.536493][ T198] ? lock_acquire+0x13c/0x160 [ 11.536497][ T198] console_flush_one_record+0x46f/0x710 [ 11.536500][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 11.536502][ T198] ? __lock_acquire+0x518/0xc20 [ 11.536507][ T198] console_unlock+0xee/0x1f0 [ 11.536509][ T198] ? console_flush_one_record+0x710/0x710 [ 11.536511][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.536513][ T198] ? lock_acquire+0x60/0x160 [ 11.536516][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.536518][ T198] ? vprintk_emit+0x320/0x3e0 [ 11.536521][ T198] vprintk_emit+0x37c/0x3e0 [ 11.536524][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 11.536526][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.536529][ T198] ? __lock_acquire+0x518/0xc20 [ 11.536533][ T198] _printk+0xc7/0x100 [ 11.536537][ T198] ? snapshot_read.cold+0x21/0x21 [ 11.536540][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.536542][ T198] ? __rwlock_init+0x150/0x150 [ 11.536546][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.536549][ T198] do_exit.cold+0x82/0x9c [ 11.536553][ T198] ? exit_notify+0x890/0x890 [ 11.536554][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 11.536557][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.536561][ T198] do_group_exit+0xb8/0x370 [ 11.536564][ T198] __x64_sys_exit_group+0x3c/0x50 [ 11.536566][ T198] x64_sys_call+0x1567/0x1570 [ 11.536569][ T198] do_syscall_64+0xff/0x530 [ 11.536573][ T198] ? irq_exit_rcu+0x1a/0x30 [ 11.536576][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.536578][ T198] RIP: 0033:0x479678 [ 11.536580][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 11.536581][ T198] RSP: 002b:00007fff15650d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.536583][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.536585][ T198] RDX: 000000000deee708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.536586][ T198] RBP: 00007fff15650d80 R08: 0000000000000000 R09: 000000000deef3e0 [ 11.536587][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff15650eb8 [ 11.536588][ T198] R13: 00007fff15650f40 R14: 0000000000000000 R15: 000000000054d560 [ 11.536594][ T198]