[ 11.783243][ T168] packetdrill (168) used greatest stack depth: 24128 bytes left [ 11.783261][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.783263][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 11.783265][ T168] preempt_count: 2, expected: 0 [ 11.783266][ T168] RCU nest depth: 0, expected: 0 [ 11.783267][ T168] locks held by packetdrill/168: 5, last CPU#2: [ 11.783269][ T168] #0: ffffffff8cc027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.783282][ T168] #1: ffffffff8cd69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.783288][ T168] #2: ffffffff8cd69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.783291][ T168] #3: ffffffff8cc89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.783294][ T168] #4: ffffffff8cc89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.783298][ T168] irq event stamp: 3906670 [ 11.783299][ T168] hardirqs last enabled at (3906669): [] __down_trylock_console_sem+0x86/0xa0 [ 11.783303][ T168] hardirqs last disabled at (3906670): [] console_emit_next_record+0x3d4/0x4c0 [ 11.783305][ T168] softirqs last enabled at (3906426): [] tcp_close+0x2b/0xb0 [ 11.783309][ T168] softirqs last disabled at (3906424): [] release_sock+0x21/0x240 [ 11.783313][ T168] Preemption disabled at: [ 11.783314][ T168] [<0000000000000000>] 0x0 [ 11.783322][ T168] CPU: 2 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.783326][ T168] Tainted: [W]=WARN [ 11.783327][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.783328][ T168] Call Trace: [ 11.783330][ T168] [ 11.783331][ T168] dump_stack_lvl+0x6f/0xa0 [ 11.783337][ T168] __might_resched.cold+0x1fe/0x2c1 [ 11.783342][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.783346][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 11.783352][ T168] __kmalloc_noprof+0x443/0x760 [ 11.783355][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 11.783362][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.783365][ T168] alloc_buf.isra.0+0x4b/0x260 [ 11.783368][ T168] put_chars+0x1e1/0x2f0 [ 11.783371][ T168] ? __send_to_port+0x420/0x420 [ 11.783373][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.783377][ T168] ? validate_chain+0x38b/0xc20 [ 11.783383][ T168] hvc_console_print+0x292/0x780 [ 11.783391][ T168] ? hvc_write+0x3a0/0x3a0 [ 11.783393][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.783395][ T168] ? lock_acquire+0x13c/0x160 [ 11.783400][ T168] console_emit_next_record+0x22f/0x4c0 [ 11.783404][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 11.783405][ T168] ? console_flush_one_record+0x106/0x710 [ 11.783408][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.783410][ T168] ? lock_acquire+0x13c/0x160 [ 11.783415][ T168] console_flush_one_record+0x46f/0x710 [ 11.783419][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 11.783420][ T168] ? __lock_acquire+0x518/0xc20 [ 11.783426][ T168] console_unlock+0xee/0x1f0 [ 11.783428][ T168] ? console_flush_one_record+0x710/0x710 [ 11.783430][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.783432][ T168] ? lock_acquire+0x60/0x160 [ 11.783436][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.783438][ T168] ? vprintk_emit+0x320/0x3e0 [ 11.783441][ T168] vprintk_emit+0x37c/0x3e0 [ 11.783444][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 11.783446][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.783449][ T168] ? __lock_acquire+0x518/0xc20 [ 11.783453][ T168] _printk+0xc7/0x100 [ 11.783458][ T168] ? snapshot_read.cold+0x21/0x21 [ 11.783461][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.783464][ T168] ? __rwlock_init+0x150/0x150 [ 11.783468][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.783471][ T168] do_exit.cold+0x82/0x9c [ 11.783475][ T168] ? exit_notify+0x890/0x890 [ 11.783476][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 11.783480][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.783484][ T168] do_group_exit+0xb8/0x370 [ 11.783487][ T168] __x64_sys_exit_group+0x3c/0x50 [ 11.783489][ T168] x64_sys_call+0x1567/0x1570 [ 11.783492][ T168] do_syscall_64+0xff/0x530 [ 11.783496][ T168] ? irq_exit_rcu+0x1a/0x30 [ 11.783499][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.783502][ T168] RIP: 0033:0x479678 [ 11.783504][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 11.783505][ T168] RSP: 002b:00007fff30c45aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.783508][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.783510][ T168] RDX: 0000000001aee708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.783511][ T168] RBP: 00007fff30c45b00 R08: 0000000000000000 R09: 0000000001aef3e0 [ 11.783511][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff30c45c38 [ 11.783512][ T168] R13: 00007fff30c45cc0 R14: 0000000000000000 R15: 000000000054d560 [ 11.783520][ T168]