[ 11.172084][ T198] packetdrill (198) used greatest stack depth: 22968 bytes left [ 11.172104][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.172106][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 11.172108][ T198] preempt_count: 2, expected: 0 [ 11.172109][ T198] RCU nest depth: 0, expected: 0 [ 11.172110][ T198] locks held by packetdrill/198: 5, last CPU#2: [ 11.172112][ T198] #0: ffffffffbb2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.172125][ T198] #1: ffffffffbb369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.172130][ T198] #2: ffffffffbb369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.172134][ T198] #3: ffffffffbb289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.172137][ T198] #4: ffffffffbb289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.172141][ T198] irq event stamp: 4227050 [ 11.172142][ T198] hardirqs last enabled at (4227049): [] __down_trylock_console_sem+0x86/0xa0 [ 11.172145][ T198] hardirqs last disabled at (4227050): [] console_emit_next_record+0x3d4/0x4c0 [ 11.172147][ T198] softirqs last enabled at (4226804): [] tcp_close+0x2b/0xb0 [ 11.172151][ T198] softirqs last disabled at (4226802): [] release_sock+0x21/0x240 [ 11.172155][ T198] Preemption disabled at: [ 11.172156][ T198] [<0000000000000000>] 0x0 [ 11.172163][ T198] CPU: 2 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.172167][ T198] Tainted: [W]=WARN [ 11.172167][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.172169][ T198] Call Trace: [ 11.172171][ T198] [ 11.172173][ T198] dump_stack_lvl+0x6f/0xa0 [ 11.172178][ T198] __might_resched.cold+0x1fe/0x2c1 [ 11.172182][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.172186][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 11.172191][ T198] __kmalloc_noprof+0x443/0x760 [ 11.172193][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 11.172199][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.172202][ T198] alloc_buf.isra.0+0x4b/0x260 [ 11.172205][ T198] put_chars+0x1e1/0x2f0 [ 11.172208][ T198] ? __send_to_port+0x420/0x420 [ 11.172210][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.172214][ T198] ? validate_chain+0x38b/0xc20 [ 11.172220][ T198] hvc_console_print+0x292/0x780 [ 11.172227][ T198] ? hvc_write+0x3a0/0x3a0 [ 11.172229][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.172231][ T198] ? lock_acquire+0x13c/0x160 [ 11.172235][ T198] console_emit_next_record+0x22f/0x4c0 [ 11.172239][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 11.172240][ T198] ? console_flush_one_record+0x106/0x710 [ 11.172243][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.172245][ T198] ? lock_acquire+0x13c/0x160 [ 11.172249][ T198] console_flush_one_record+0x46f/0x710 [ 11.172252][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 11.172254][ T198] ? __lock_acquire+0x518/0xc20 [ 11.172259][ T198] console_unlock+0xee/0x1f0 [ 11.172261][ T198] ? console_flush_one_record+0x710/0x710 [ 11.172263][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.172265][ T198] ? lock_acquire+0x60/0x160 [ 11.172268][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.172270][ T198] ? vprintk_emit+0x320/0x3e0 [ 11.172273][ T198] vprintk_emit+0x37c/0x3e0 [ 11.172276][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 11.172278][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 11.172281][ T198] ? __lock_acquire+0x518/0xc20 [ 11.172285][ T198] _printk+0xc7/0x100 [ 11.172289][ T198] ? snapshot_read.cold+0x21/0x21 [ 11.172292][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.172294][ T198] ? __rwlock_init+0x150/0x150 [ 11.172298][ T198] ? do_raw_spin_lock+0x131/0x280 [ 11.172301][ T198] do_exit.cold+0x82/0x9c [ 11.172305][ T198] ? exit_notify+0x890/0x890 [ 11.172307][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 11.172310][ T198] ? rcu_is_watching+0x16/0xd0 [ 11.172313][ T198] do_group_exit+0xb8/0x370 [ 11.172316][ T198] __x64_sys_exit_group+0x3c/0x50 [ 11.172318][ T198] x64_sys_call+0x1567/0x1570 [ 11.172321][ T198] do_syscall_64+0xff/0x530 [ 11.172325][ T198] ? irq_exit_rcu+0x1a/0x30 [ 11.172328][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.172331][ T198] RIP: 0033:0x479678 [ 11.172333][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 11.172334][ T198] RSP: 002b:00007fff940e9548 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.172336][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.172338][ T198] RDX: 0000000031890708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.172339][ T198] RBP: 00007fff940e95a0 R08: 0000000000000000 R09: 00000000318913e0 [ 11.172340][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff940e96d8 [ 11.172340][ T198] R13: 00007fff940e9760 R14: 0000000000000000 R15: 000000000054d560 [ 11.172347][ T198]