[ 13.021263][ T168] packetdrill (168) used greatest stack depth: 23544 bytes left [ 13.021279][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.021281][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 13.021283][ T168] preempt_count: 2, expected: 0 [ 13.021283][ T168] RCU nest depth: 0, expected: 0 [ 13.021284][ T168] locks held by packetdrill/168: 5, last CPU#3: [ 13.021286][ T168] #0: ffffffffa00027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.021299][ T168] #1: ffffffffa0169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.021304][ T168] #2: ffffffffa0169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.021308][ T168] #3: ffffffffa0089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.021311][ T168] #4: ffffffffa0089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.021314][ T168] irq event stamp: 4213606 [ 13.021315][ T168] hardirqs last enabled at (4213605): [] __down_trylock_console_sem+0x86/0xa0 [ 13.021319][ T168] hardirqs last disabled at (4213606): [] console_emit_next_record+0x3d4/0x4c0 [ 13.021320][ T168] softirqs last enabled at (4213360): [] tcp_close+0x2b/0xb0 [ 13.021324][ T168] softirqs last disabled at (4213358): [] release_sock+0x21/0x240 [ 13.021328][ T168] Preemption disabled at: [ 13.021329][ T168] [<0000000000000000>] 0x0 [ 13.021336][ T168] CPU: 3 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.021339][ T168] Tainted: [W]=WARN [ 13.021340][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.021342][ T168] Call Trace: [ 13.021344][ T168] [ 13.021345][ T168] dump_stack_lvl+0x6f/0xa0 [ 13.021351][ T168] __might_resched.cold+0x1fe/0x2c1 [ 13.021356][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.021360][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 13.021367][ T168] __kmalloc_noprof+0x443/0x760 [ 13.021370][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 13.021376][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 13.021379][ T168] alloc_buf.isra.0+0x4b/0x260 [ 13.021383][ T168] put_chars+0x1e1/0x2f0 [ 13.021386][ T168] ? __send_to_port+0x420/0x420 [ 13.021388][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.021392][ T168] ? validate_chain+0x38b/0xc20 [ 13.021397][ T168] hvc_console_print+0x292/0x780 [ 13.021404][ T168] ? hvc_write+0x3a0/0x3a0 [ 13.021407][ T168] ? rcu_is_watching+0x16/0xd0 [ 13.021409][ T168] ? lock_acquire+0x13c/0x160 [ 13.021413][ T168] console_emit_next_record+0x22f/0x4c0 [ 13.021417][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 13.021418][ T168] ? console_flush_one_record+0x106/0x710 [ 13.021421][ T168] ? rcu_is_watching+0x16/0xd0 [ 13.021423][ T168] ? lock_acquire+0x13c/0x160 [ 13.021427][ T168] console_flush_one_record+0x46f/0x710 [ 13.021430][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 13.021432][ T168] ? __lock_acquire+0x518/0xc20 [ 13.021437][ T168] console_unlock+0xee/0x1f0 [ 13.021440][ T168] ? console_flush_one_record+0x710/0x710 [ 13.021441][ T168] ? rcu_is_watching+0x16/0xd0 [ 13.021443][ T168] ? lock_acquire+0x60/0x160 [ 13.021447][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.021449][ T168] ? vprintk_emit+0x320/0x3e0 [ 13.021452][ T168] vprintk_emit+0x37c/0x3e0 [ 13.021455][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 13.021456][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 13.021460][ T168] ? __lock_acquire+0x518/0xc20 [ 13.021463][ T168] _printk+0xc7/0x100 [ 13.021472][ T168] ? snapshot_read.cold+0x21/0x21 [ 13.021475][ T168] ? do_raw_spin_lock+0x131/0x280 [ 13.021478][ T168] ? __rwlock_init+0x150/0x150 [ 13.021482][ T168] ? do_raw_spin_lock+0x131/0x280 [ 13.021485][ T168] do_exit.cold+0x82/0x9c [ 13.021489][ T168] ? exit_notify+0x890/0x890 [ 13.021490][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 13.021493][ T168] ? rcu_is_watching+0x16/0xd0 [ 13.021497][ T168] do_group_exit+0xb8/0x370 [ 13.021500][ T168] __x64_sys_exit_group+0x3c/0x50 [ 13.021502][ T168] x64_sys_call+0x1567/0x1570 [ 13.021505][ T168] do_syscall_64+0xff/0x530 [ 13.021509][ T168] ? irq_exit_rcu+0x1a/0x30 [ 13.021512][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.021514][ T168] RIP: 0033:0x479678 [ 13.021517][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 13.021518][ T168] RSP: 002b:00007ffe5c525818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.021520][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 13.021522][ T168] RDX: 000000002ac98708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 13.021523][ T168] RBP: 00007ffe5c525870 R08: 0000000000000000 R09: 000000002ac993e0 [ 13.021524][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe5c5259a8 [ 13.021525][ T168] R13: 00007ffe5c525a30 R14: 0000000000000000 R15: 000000000054d560 [ 13.021531][ T168]