[ 11.121248][ T167] packetdrill (167) used greatest stack depth: 24032 bytes left [ 11.121268][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.121271][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: packetdrill [ 11.121274][ T167] preempt_count: 2, expected: 0 [ 11.121275][ T167] RCU nest depth: 0, expected: 0 [ 11.121276][ T167] locks held by packetdrill/167: 5, last CPU#1: [ 11.121279][ T167] #0: ffffffffa14027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.121294][ T167] #1: ffffffffa1569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.121301][ T167] #2: ffffffffa1569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.121307][ T167] #3: ffffffffa1489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.121313][ T167] #4: ffffffffa1489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.121319][ T167] irq event stamp: 4144502 [ 11.121321][ T167] hardirqs last enabled at (4144501): [] __down_trylock_console_sem+0x86/0xa0 [ 11.121325][ T167] hardirqs last disabled at (4144502): [] console_emit_next_record+0x3d4/0x4c0 [ 11.121328][ T167] softirqs last enabled at (4142706): [] handle_softirqs+0x67c/0x900 [ 11.121331][ T167] softirqs last disabled at (4142701): [] __irq_exit_rcu+0x145/0x1c0 [ 11.121335][ T167] Preemption disabled at: [ 11.121336][ T167] [<0000000000000000>] 0x0 [ 11.121344][ T167] CPU: 1 UID: 0 PID: 167 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.121349][ T167] Tainted: [W]=WARN [ 11.121351][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.121353][ T167] Call Trace: [ 11.121355][ T167] [ 11.121358][ T167] dump_stack_lvl+0x6f/0xa0 [ 11.121365][ T167] __might_resched.cold+0x1fe/0x2c1 [ 11.121372][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.121377][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 11.121384][ T167] __kmalloc_noprof+0x443/0x760 [ 11.121388][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 11.121398][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 11.121401][ T167] alloc_buf.isra.0+0x4b/0x260 [ 11.121407][ T167] put_chars+0x1e1/0x2f0 [ 11.121411][ T167] ? __send_to_port+0x420/0x420 [ 11.121414][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.121420][ T167] ? validate_chain+0x38b/0xc20 [ 11.121430][ T167] hvc_console_print+0x292/0x780 [ 11.121441][ T167] ? hvc_write+0x3a0/0x3a0 [ 11.121445][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.121448][ T167] ? lock_acquire+0x13c/0x160 [ 11.121456][ T167] console_emit_next_record+0x22f/0x4c0 [ 11.121462][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 11.121464][ T167] ? console_flush_one_record+0x106/0x710 [ 11.121469][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.121472][ T167] ? lock_acquire+0x13c/0x160 [ 11.121479][ T167] console_flush_one_record+0x46f/0x710 [ 11.121486][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 11.121497][ T167] ? __lock_acquire+0x518/0xc20 [ 11.121507][ T167] console_unlock+0xee/0x1f0 [ 11.121511][ T167] ? console_flush_one_record+0x710/0x710 [ 11.121513][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.121516][ T167] ? lock_acquire+0x60/0x160 [ 11.121523][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.121526][ T167] ? vprintk_emit+0x320/0x3e0 [ 11.121531][ T167] vprintk_emit+0x37c/0x3e0 [ 11.121536][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 11.121539][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 11.121544][ T167] ? __lock_acquire+0x518/0xc20 [ 11.121551][ T167] _printk+0xc7/0x100 [ 11.121556][ T167] ? snapshot_read.cold+0x21/0x21 [ 11.121561][ T167] ? do_raw_spin_lock+0x131/0x280 [ 11.121565][ T167] ? __rwlock_init+0x150/0x150 [ 11.121572][ T167] ? do_raw_spin_lock+0x131/0x280 [ 11.121579][ T167] do_exit.cold+0x82/0x9c [ 11.121585][ T167] ? exit_notify+0x890/0x890 [ 11.121588][ T167] ? __lock_release.isra.0+0x69/0x1a0 [ 11.121592][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.121599][ T167] do_group_exit+0xb8/0x370 [ 11.121604][ T167] __x64_sys_exit_group+0x3c/0x50 [ 11.121608][ T167] x64_sys_call+0x1567/0x1570 [ 11.121612][ T167] do_syscall_64+0xff/0x530 [ 11.121617][ T167] ? irq_exit_rcu+0x1a/0x30 [ 11.121622][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.121625][ T167] RIP: 0033:0x479678 [ 11.121629][ T167] Code: Unable to access opcode bytes at 0x47964e. [ 11.121631][ T167] RSP: 002b:00007ffd4452a148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.121634][ T167] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.121636][ T167] RDX: 00000000067dd708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.121637][ T167] RBP: 00007ffd4452a1a0 R08: 0000000000000000 R09: 00000000067de3e0 [ 11.121639][ T167] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd4452a2d8 [ 11.121640][ T167] R13: 00007ffd4452a360 R14: 0000000000000000 R15: 000000000054d560 [ 11.121653][ T167]