[ 11.689468][ T198] packetdrill (198) used greatest stack depth: 23584 bytes left [ 11.689486][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.689488][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 11.689490][ T198] preempt_count: 2, expected: 0 [ 11.689490][ T198] RCU nest depth: 0, expected: 0 [ 11.689491][ T198] locks held by packetdrill/198: 5, last CPU#3: [ 11.689493][ T198] #0: ffffffff9bc027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.689505][ T198] #1: ffffffff9bd69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.689510][ T198] #2: ffffffff9bd69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.689513][ T198] #3: ffffffff9bc89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.689516][ T198] #4: ffffffff9bc89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.689520][ T198] irq event stamp: 3852450 [ 11.689520][ T198] hardirqs last enabled at (3852449): [] __down_trylock_console_sem+0x86/0xa0 [ 11.689524][ T198] hardirqs last disabled at (3852450): [] console_emit_next_record+0x3d4/0x4c0 [ 11.689525][ T198] softirqs last enabled at (3852222): [] tcp_close+0x2b/0xb0 [ 11.689529][ T198] softirqs last disabled at (3852220): [] release_sock+0x21/0x240 [ 11.689533][ T198] Preemption disabled at: [ 11.689534][ T198] [<0000000000000000>] 0x0 [ 11.689541][ T198] CPU: 3 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.689544][ T198] Tainted: [W]=WARN [ 11.689545][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.689547][ T198] Call Trace: [ 11.689549][ T198] [ 11.689550][ T198] dump_stack_lvl+0x6f/0xa0 [ 11.689555][ T198] __might_resched.cold+0x1fe/0x2c1 [ 11.689560][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.689563][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 11.689568][ T198] __kmalloc_noprof+0x443/0x760 [ 11.689570][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 11.689576][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.689578][ T198] alloc_buf.isra.0+0x4b/0x260 [ 11.689582][ T198] put_chars+0x1e1/0x2f0 [ 11.689585][ T198] ? __send_to_port+0x420/0x420 [ 11.689586][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.689590][ T198] ? validate_chain+0x38b/0xc20 [ 11.689595][ T198] hvc_console_print+0x292/0x780 [ 11.689602][ T198] ? hvc_write+0x3a0/0x3a0 [ 11.689604][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.689606][ T198] ? lock_acquire+0x13c/0x160 [ 11.689613][ T198] console_emit_next_record+0x22f/0x4c0 [ 11.689616][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 11.689618][ T198] ? console_flush_one_record+0x106/0x710 [ 11.689620][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.689622][ T198] ? lock_acquire+0x13c/0x160 [ 11.689626][ T198] console_flush_one_record+0x46f/0x710 [ 11.689629][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 11.689631][ T198] ? __lock_acquire+0x518/0xc20 [ 11.689636][ T198] console_unlock+0xee/0x1f0 [ 11.689638][ T198] ? console_flush_one_record+0x710/0x710 [ 11.689640][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.689641][ T198] ? lock_acquire+0x60/0x160 [ 11.689645][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.689647][ T198] ? vprintk_emit+0x320/0x3e0 [ 11.689650][ T198] vprintk_emit+0x37c/0x3e0 [ 11.689653][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 11.689656][ T198] ? __lock_acquire+0x518/0xc20 [ 11.689659][ T198] _printk+0xc7/0x100 [ 11.689663][ T198] ? snapshot_read.cold+0x21/0x21 [ 11.689666][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.689669][ T198] ? __rwlock_init+0x150/0x150 [ 11.689672][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.689675][ T198] do_exit.cold+0x82/0x9c [ 11.689679][ T198] ? exit_notify+0x890/0x890 [ 11.689680][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 11.689683][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.689687][ T198] do_group_exit+0xb8/0x370 [ 11.689690][ T198] __x64_sys_exit_group+0x3c/0x50 [ 11.689692][ T198] x64_sys_call+0x1567/0x1570 [ 11.689694][ T198] do_syscall_64+0xff/0x530 [ 11.689698][ T198] ? irq_exit_rcu+0x1a/0x30 [ 11.689701][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.689703][ T198] RIP: 0033:0x479678 [ 11.689706][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 11.689707][ T198] RSP: 002b:00007ffee2654788 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.689709][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.689711][ T198] RDX: 000000001d316708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.689712][ T198] RBP: 00007ffee26547e0 R08: 0000000000000000 R09: 000000001d3173e0 [ 11.689712][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffee2654918 [ 11.689713][ T198] R13: 00007ffee26549a0 R14: 0000000000000000 R15: 000000000054d560 [ 11.689720][ T198]