[ 10.838309][ T220] packetdrill (220) used greatest stack depth: 24480 bytes left [ 10.838324][ T220] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.838326][ T220] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 220, name: packetdrill [ 10.838328][ T220] preempt_count: 2, expected: 0 [ 10.838329][ T220] RCU nest depth: 0, expected: 0 [ 10.838330][ T220] locks held by packetdrill/220: 5, last CPU#1: [ 10.838332][ T220] #0: ffffffffbb4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.838344][ T220] #1: ffffffffbb569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.838349][ T220] #2: ffffffffbb569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.838352][ T220] #3: ffffffffbb489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.838356][ T220] #4: ffffffffbb489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.838359][ T220] irq event stamp: 4161082 [ 10.838360][ T220] hardirqs last enabled at (4161081): [] __down_trylock_console_sem+0x86/0xa0 [ 10.838363][ T220] hardirqs last disabled at (4161082): [] console_emit_next_record+0x3d4/0x4c0 [ 10.838364][ T220] softirqs last enabled at (4154498): [] handle_softirqs+0x67c/0x900 [ 10.838367][ T220] softirqs last disabled at (4154291): [] __irq_exit_rcu+0x145/0x1c0 [ 10.838369][ T220] Preemption disabled at: [ 10.838370][ T220] [<0000000000000000>] 0x0 [ 10.838376][ T220] CPU: 1 UID: 0 PID: 220 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.838380][ T220] Tainted: [W]=WARN [ 10.838381][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.838382][ T220] Call Trace: [ 10.838384][ T220] [ 10.838385][ T220] dump_stack_lvl+0x6f/0xa0 [ 10.838391][ T220] __might_resched.cold+0x1fe/0x2c1 [ 10.838395][ T220] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.838398][ T220] ? __kmalloc_noprof+0xdb/0x760 [ 10.838404][ T220] __kmalloc_noprof+0x443/0x760 [ 10.838406][ T220] ? alloc_buf.isra.0+0x4b/0x260 [ 10.838412][ T220] ? do_raw_spin_unlock+0x59/0x250 [ 10.838415][ T220] alloc_buf.isra.0+0x4b/0x260 [ 10.838418][ T220] put_chars+0x1e1/0x2f0 [ 10.838421][ T220] ? __send_to_port+0x420/0x420 [ 10.838423][ T220] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.838427][ T220] ? validate_chain+0x38b/0xc20 [ 10.838432][ T220] hvc_console_print+0x292/0x780 [ 10.838438][ T220] ? hvc_write+0x3a0/0x3a0 [ 10.838441][ T220] ? rcu_is_watching+0x16/0xd0 [ 10.838443][ T220] ? lock_acquire+0x13c/0x160 [ 10.838446][ T220] console_emit_next_record+0x22f/0x4c0 [ 10.838450][ T220] ? devkmsg_read+0x4b0/0x4b0 [ 10.838451][ T220] ? console_flush_one_record+0x106/0x710 [ 10.838454][ T220] ? rcu_is_watching+0x16/0xd0 [ 10.838455][ T220] ? lock_acquire+0x13c/0x160 [ 10.838459][ T220] console_flush_one_record+0x46f/0x710 [ 10.838463][ T220] ? console_emit_next_record+0x4c0/0x4c0 [ 10.838464][ T220] ? __lock_acquire+0x518/0xc20 [ 10.838469][ T220] console_unlock+0xee/0x1f0 [ 10.838471][ T220] ? console_flush_one_record+0x710/0x710 [ 10.838472][ T220] ? rcu_is_watching+0x16/0xd0 [ 10.838474][ T220] ? lock_acquire+0x60/0x160 [ 10.838478][ T220] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.838480][ T220] ? vprintk_emit+0x320/0x3e0 [ 10.838482][ T220] vprintk_emit+0x37c/0x3e0 [ 10.838485][ T220] ? wake_up_klogd_work_func+0x90/0x90 [ 10.838487][ T220] ? do_raw_spin_unlock+0x59/0x250 [ 10.838490][ T220] ? __lock_acquire+0x518/0xc20 [ 10.838493][ T220] _printk+0xc7/0x100 [ 10.838497][ T220] ? snapshot_read.cold+0x21/0x21 [ 10.838500][ T220] ? do_raw_spin_lock+0x131/0x280 [ 10.838502][ T220] ? __rwlock_init+0x150/0x150 [ 10.838506][ T220] ? do_raw_spin_lock+0x131/0x280 [ 10.838509][ T220] do_exit.cold+0x82/0x9c [ 10.838512][ T220] ? exit_notify+0x890/0x890 [ 10.838514][ T220] ? __lock_release.isra.0+0x69/0x1a0 [ 10.838516][ T220] ? rcu_is_watching+0x16/0xd0 [ 10.838520][ T220] do_group_exit+0xb8/0x370 [ 10.838523][ T220] __x64_sys_exit_group+0x3c/0x50 [ 10.838525][ T220] x64_sys_call+0x1567/0x1570 [ 10.838528][ T220] do_syscall_64+0xff/0x530 [ 10.838531][ T220] ? irq_exit_rcu+0x1a/0x30 [ 10.838534][ T220] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.838536][ T220] RIP: 0033:0x479678 [ 10.838538][ T220] Code: Unable to access opcode bytes at 0x47964e. [ 10.838539][ T220] RSP: 002b:00007ffc26358298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.838541][ T220] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.838543][ T220] RDX: 000000000eec6708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.838544][ T220] RBP: 00007ffc263582f0 R08: 0000000000000000 R09: 000000000eec73e0 [ 10.838544][ T220] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc26358428 [ 10.838545][ T220] R13: 00007ffc263584b0 R14: 0000000000000000 R15: 000000000054d560 [ 10.838552][ T220]