[ 12.118080][ T231] packetdrill (231) used greatest stack depth: 24632 bytes left [ 12.118097][ T231] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.118099][ T231] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 231, name: packetdrill [ 12.118101][ T231] preempt_count: 2, expected: 0 [ 12.118102][ T231] RCU nest depth: 0, expected: 0 [ 12.118103][ T231] locks held by packetdrill/231: 5, last CPU#3: [ 12.118105][ T231] #0: ffffffffbba027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.118118][ T231] #1: ffffffffbbb69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.118123][ T231] #2: ffffffffbbb69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.118126][ T231] #3: ffffffffbba89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.118130][ T231] #4: ffffffffbba89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.118133][ T231] irq event stamp: 4274410 [ 12.118134][ T231] hardirqs last enabled at (4274409): [] __down_trylock_console_sem+0x86/0xa0 [ 12.118137][ T231] hardirqs last disabled at (4274410): [] console_emit_next_record+0x3d4/0x4c0 [ 12.118139][ T231] softirqs last enabled at (4274334): [] handle_softirqs+0x67c/0x900 [ 12.118141][ T231] softirqs last disabled at (4274325): [] __irq_exit_rcu+0x145/0x1c0 [ 12.118144][ T231] Preemption disabled at: [ 12.118144][ T231] [<0000000000000000>] 0x0 [ 12.118151][ T231] CPU: 3 UID: 0 PID: 231 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.118155][ T231] Tainted: [W]=WARN [ 12.118156][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.118157][ T231] Call Trace: [ 12.118159][ T231] [ 12.118160][ T231] dump_stack_lvl+0x6f/0xa0 [ 12.118166][ T231] __might_resched.cold+0x1fe/0x2c1 [ 12.118170][ T231] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.118173][ T231] ? __kmalloc_noprof+0xdb/0x760 [ 12.118178][ T231] __kmalloc_noprof+0x443/0x760 [ 12.118181][ T231] ? alloc_buf.isra.0+0x4b/0x260 [ 12.118187][ T231] ? do_raw_spin_unlock+0x59/0x250 [ 12.118190][ T231] alloc_buf.isra.0+0x4b/0x260 [ 12.118193][ T231] put_chars+0x1e1/0x2f0 [ 12.118196][ T231] ? __send_to_port+0x420/0x420 [ 12.118198][ T231] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.118202][ T231] ? validate_chain+0x38b/0xc20 [ 12.118208][ T231] hvc_console_print+0x292/0x780 [ 12.118214][ T231] ? hvc_write+0x3a0/0x3a0 [ 12.118216][ T231] ? rcu_is_watching+0x16/0xd0 [ 12.118218][ T231] ? lock_acquire+0x13c/0x160 [ 12.118223][ T231] console_emit_next_record+0x22f/0x4c0 [ 12.118226][ T231] ? devkmsg_read+0x4b0/0x4b0 [ 12.118227][ T231] ? console_flush_one_record+0x106/0x710 [ 12.118230][ T231] ? rcu_is_watching+0x16/0xd0 [ 12.118232][ T231] ? lock_acquire+0x13c/0x160 [ 12.118236][ T231] console_flush_one_record+0x46f/0x710 [ 12.118239][ T231] ? console_emit_next_record+0x4c0/0x4c0 [ 12.118241][ T231] ? __lock_acquire+0x518/0xc20 [ 12.118246][ T231] console_unlock+0xee/0x1f0 [ 12.118248][ T231] ? console_flush_one_record+0x710/0x710 [ 12.118250][ T231] ? rcu_is_watching+0x16/0xd0 [ 12.118252][ T231] ? lock_acquire+0x60/0x160 [ 12.118255][ T231] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.118257][ T231] ? vprintk_emit+0x320/0x3e0 [ 12.118260][ T231] vprintk_emit+0x37c/0x3e0 [ 12.118263][ T231] ? wake_up_klogd_work_func+0x90/0x90 [ 12.118266][ T231] ? __lock_acquire+0x518/0xc20 [ 12.118270][ T231] _printk+0xc7/0x100 [ 12.118274][ T231] ? snapshot_read.cold+0x21/0x21 [ 12.118277][ T231] ? do_raw_spin_lock+0x131/0x280 [ 12.118280][ T231] ? __rwlock_init+0x150/0x150 [ 12.118284][ T231] ? do_raw_spin_lock+0x131/0x280 [ 12.118287][ T231] do_exit.cold+0x82/0x9c [ 12.118290][ T231] ? exit_notify+0x890/0x890 [ 12.118292][ T231] ? __lock_release.isra.0+0x69/0x1a0 [ 12.118295][ T231] ? rcu_is_watching+0x16/0xd0 [ 12.118299][ T231] do_group_exit+0xb8/0x370 [ 12.118302][ T231] __x64_sys_exit_group+0x3c/0x50 [ 12.118304][ T231] x64_sys_call+0x1567/0x1570 [ 12.118306][ T231] do_syscall_64+0xff/0x530 [ 12.118310][ T231] ? irq_exit_rcu+0x1a/0x30 [ 12.118313][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.118315][ T231] RIP: 0033:0x479678 [ 12.118318][ T231] Code: Unable to access opcode bytes at 0x47964e. [ 12.118319][ T231] RSP: 002b:00007ffd0616df78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.118321][ T231] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.118323][ T231] RDX: 0000000025929708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.118324][ T231] RBP: 00007ffd0616dfd0 R08: 0000000000000000 R09: 000000002592a3e0 [ 12.118325][ T231] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd0616e108 [ 12.118326][ T231] R13: 00007ffd0616e190 R14: 0000000000000000 R15: 000000000054d560 [ 12.118334][ T231]