[ 10.057151][ T168] packetdrill (168) used greatest stack depth: 24600 bytes left [ 10.057166][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.057168][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 10.057170][ T168] preempt_count: 2, expected: 0 [ 10.057171][ T168] RCU nest depth: 0, expected: 0 [ 10.057172][ T168] locks held by packetdrill/168: 5, last CPU#2: [ 10.057174][ T168] #0: ffffffff972027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.057186][ T168] #1: ffffffff97369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.057191][ T168] #2: ffffffff97369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.057195][ T168] #3: ffffffff97289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.057198][ T168] #4: ffffffff97289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.057201][ T168] irq event stamp: 3975236 [ 10.057202][ T168] hardirqs last enabled at (3975235): [] __down_trylock_console_sem+0x86/0xa0 [ 10.057205][ T168] hardirqs last disabled at (3975236): [] console_emit_next_record+0x3d4/0x4c0 [ 10.057207][ T168] softirqs last enabled at (3974988): [] tcp_close+0x2b/0xb0 [ 10.057211][ T168] softirqs last disabled at (3974986): [] release_sock+0x21/0x240 [ 10.057215][ T168] Preemption disabled at: [ 10.057215][ T168] [<0000000000000000>] 0x0 [ 10.057223][ T168] CPU: 2 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.057226][ T168] Tainted: [W]=WARN [ 10.057227][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.057229][ T168] Call Trace: [ 10.057230][ T168] [ 10.057232][ T168] dump_stack_lvl+0x6f/0xa0 [ 10.057238][ T168] __might_resched.cold+0x1fe/0x2c1 [ 10.057242][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.057246][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 10.057252][ T168] __kmalloc_noprof+0x443/0x760 [ 10.057254][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 10.057260][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.057264][ T168] alloc_buf.isra.0+0x4b/0x260 [ 10.057267][ T168] put_chars+0x1e1/0x2f0 [ 10.057270][ T168] ? __send_to_port+0x420/0x420 [ 10.057272][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.057276][ T168] ? validate_chain+0x38b/0xc20 [ 10.057281][ T168] hvc_console_print+0x292/0x780 [ 10.057288][ T168] ? hvc_write+0x3a0/0x3a0 [ 10.057291][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.057293][ T168] ? lock_acquire+0x13c/0x160 [ 10.057297][ T168] console_emit_next_record+0x22f/0x4c0 [ 10.057300][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 10.057302][ T168] ? console_flush_one_record+0x106/0x710 [ 10.057304][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.057306][ T168] ? lock_acquire+0x13c/0x160 [ 10.057310][ T168] console_flush_one_record+0x46f/0x710 [ 10.057314][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 10.057315][ T168] ? __lock_acquire+0x518/0xc20 [ 10.057321][ T168] console_unlock+0xee/0x1f0 [ 10.057323][ T168] ? console_flush_one_record+0x710/0x710 [ 10.057325][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.057326][ T168] ? lock_acquire+0x60/0x160 [ 10.057330][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.057332][ T168] ? vprintk_emit+0x320/0x3e0 [ 10.057335][ T168] vprintk_emit+0x37c/0x3e0 [ 10.057338][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 10.057340][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.057343][ T168] ? __lock_acquire+0x518/0xc20 [ 10.057347][ T168] _printk+0xc7/0x100 [ 10.057351][ T168] ? snapshot_read.cold+0x21/0x21 [ 10.057354][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.057356][ T168] ? __rwlock_init+0x150/0x150 [ 10.057361][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.057363][ T168] do_exit.cold+0x82/0x9c [ 10.057367][ T168] ? exit_notify+0x890/0x890 [ 10.057368][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 10.057371][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.057375][ T168] do_group_exit+0xb8/0x370 [ 10.057378][ T168] __x64_sys_exit_group+0x3c/0x50 [ 10.057380][ T168] x64_sys_call+0x1567/0x1570 [ 10.057383][ T168] do_syscall_64+0xff/0x530 [ 10.057387][ T168] ? irq_exit_rcu+0x1a/0x30 [ 10.057390][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.057392][ T168] RIP: 0033:0x479678 [ 10.057394][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 10.057395][ T168] RSP: 002b:00007ffca633b768 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.057398][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.057399][ T168] RDX: 000000001374d708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.057400][ T168] RBP: 00007ffca633b7c0 R08: 0000000000000000 R09: 000000001374e3e0 [ 10.057401][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffca633b8f8 [ 10.057402][ T168] R13: 00007ffca633b980 R14: 0000000000000000 R15: 000000000054d560 [ 10.057409][ T168]