[ 14.946118][ T201] packetdrill (201) used greatest stack depth: 23496 bytes left [ 14.946139][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 14.946142][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: packetdrill [ 14.946144][ T201] preempt_count: 2, expected: 0 [ 14.946145][ T201] RCU nest depth: 0, expected: 0 [ 14.946147][ T201] locks held by packetdrill/201: 5, last CPU#0: [ 14.946150][ T201] #0: ffffffffb3e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 14.946170][ T201] #1: ffffffffb3f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 14.946178][ T201] #2: ffffffffb3f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 14.946184][ T201] #3: ffffffffb3e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 14.946190][ T201] #4: ffffffffb3e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 14.946197][ T201] irq event stamp: 3520314 [ 14.946198][ T201] hardirqs last enabled at (3520313): [] __down_trylock_console_sem+0x86/0xa0 [ 14.946203][ T201] hardirqs last disabled at (3520314): [] console_emit_next_record+0x3d4/0x4c0 [ 14.946205][ T201] softirqs last enabled at (3520070): [] tcp_close+0x2b/0xb0 [ 14.946211][ T201] softirqs last disabled at (3520068): [] release_sock+0x21/0x240 [ 14.946215][ T201] Preemption disabled at: [ 14.946217][ T201] [<0000000000000000>] 0x0 [ 14.946226][ T201] CPU: 0 UID: 0 PID: 201 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 14.946230][ T201] Tainted: [W]=WARN [ 14.946231][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.946233][ T201] Call Trace: [ 14.946236][ T201] [ 14.946238][ T201] dump_stack_lvl+0x6f/0xa0 [ 14.946245][ T201] __might_resched.cold+0x1fe/0x2c1 [ 14.946251][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 14.946256][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 14.946263][ T201] __kmalloc_noprof+0x443/0x760 [ 14.946267][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 14.946276][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 14.946280][ T201] alloc_buf.isra.0+0x4b/0x260 [ 14.946285][ T201] put_chars+0x1e1/0x2f0 [ 14.946290][ T201] ? __send_to_port+0x420/0x420 [ 14.946292][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 14.946298][ T201] ? validate_chain+0x38b/0xc20 [ 14.946307][ T201] hvc_console_print+0x292/0x780 [ 14.946318][ T201] ? hvc_write+0x3a0/0x3a0 [ 14.946322][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.946325][ T201] ? lock_acquire+0x13c/0x160 [ 14.946332][ T201] console_emit_next_record+0x22f/0x4c0 [ 14.946338][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 14.946340][ T201] ? console_flush_one_record+0x106/0x710 [ 14.946345][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.946348][ T201] ? lock_acquire+0x13c/0x160 [ 14.946355][ T201] console_flush_one_record+0x46f/0x710 [ 14.946361][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 14.946363][ T201] ? __lock_acquire+0x518/0xc20 [ 14.946373][ T201] console_unlock+0xee/0x1f0 [ 14.946376][ T201] ? console_flush_one_record+0x710/0x710 [ 14.946378][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.946381][ T201] ? lock_acquire+0x60/0x160 [ 14.946388][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 14.946391][ T201] ? vprintk_emit+0x320/0x3e0 [ 14.946396][ T201] vprintk_emit+0x37c/0x3e0 [ 14.946402][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 14.946404][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 14.946409][ T201] ? __lock_acquire+0x518/0xc20 [ 14.946416][ T201] _printk+0xc7/0x100 [ 14.946421][ T201] ? snapshot_read.cold+0x21/0x21 [ 14.946426][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.946430][ T201] ? __rwlock_init+0x150/0x150 [ 14.946437][ T201] ? do_raw_spin_lock+0x131/0x280 [ 14.946442][ T201] do_exit.cold+0x82/0x9c [ 14.946448][ T201] ? exit_notify+0x890/0x890 [ 14.946450][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 14.946464][ T201] ? rcu_is_watching+0x16/0xd0 [ 14.946470][ T201] do_group_exit+0xb8/0x370 [ 14.946476][ T201] __x64_sys_exit_group+0x3c/0x50 [ 14.946479][ T201] x64_sys_call+0x1567/0x1570 [ 14.946483][ T201] do_syscall_64+0xff/0x530 [ 14.946488][ T201] ? irq_exit_rcu+0x1a/0x30 [ 14.946493][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.946496][ T201] RIP: 0033:0x479678 [ 14.946500][ T201] Code: Unable to access opcode bytes at 0x47964e. [ 14.946501][ T201] RSP: 002b:00007ffee944d7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.946505][ T201] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 14.946507][ T201] RDX: 000000000db09708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 14.946508][ T201] RBP: 00007ffee944d820 R08: 0000000000000000 R09: 000000000db0a3e0 [ 14.946510][ T201] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffee944d958 [ 14.946511][ T201] R13: 00007ffee944d9e0 R14: 0000000000000000 R15: 000000000054d560 [ 14.946525][ T201]