[ 10.503237][ T198] packetdrill (198) used greatest stack depth: 24360 bytes left [ 10.503255][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.503257][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 10.503259][ T198] preempt_count: 2, expected: 0 [ 10.503260][ T198] RCU nest depth: 0, expected: 0 [ 10.503261][ T198] locks held by packetdrill/198: 5, last CPU#0: [ 10.503263][ T198] #0: ffffffffaf2027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.503276][ T198] #1: ffffffffaf369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.503281][ T198] #2: ffffffffaf369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.503285][ T198] #3: ffffffffaf289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.503289][ T198] #4: ffffffffaf289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.503293][ T198] irq event stamp: 3886732 [ 10.503294][ T198] hardirqs last enabled at (3886731): [] __down_trylock_console_sem+0x86/0xa0 [ 10.503298][ T198] hardirqs last disabled at (3886732): [] console_emit_next_record+0x3d4/0x4c0 [ 10.503299][ T198] softirqs last enabled at (3886484): [] tcp_close+0x2b/0xb0 [ 10.503304][ T198] softirqs last disabled at (3886482): [] release_sock+0x21/0x240 [ 10.503307][ T198] Preemption disabled at: [ 10.503308][ T198] [<0000000000000000>] 0x0 [ 10.503315][ T198] CPU: 0 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.503319][ T198] Tainted: [W]=WARN [ 10.503320][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.503321][ T198] Call Trace: [ 10.503323][ T198] [ 10.503325][ T198] dump_stack_lvl+0x6f/0xa0 [ 10.503331][ T198] __might_resched.cold+0x1fe/0x2c1 [ 10.503337][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.503342][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 10.503348][ T198] __kmalloc_noprof+0x443/0x760 [ 10.503351][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 10.503357][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 10.503360][ T198] alloc_buf.isra.0+0x4b/0x260 [ 10.503364][ T198] put_chars+0x1e1/0x2f0 [ 10.503367][ T198] ? __send_to_port+0x420/0x420 [ 10.503369][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.503372][ T198] ? validate_chain+0x38b/0xc20 [ 10.503378][ T198] hvc_console_print+0x292/0x780 [ 10.503386][ T198] ? hvc_write+0x3a0/0x3a0 [ 10.503388][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.503390][ T198] ? lock_acquire+0x13c/0x160 [ 10.503395][ T198] console_emit_next_record+0x22f/0x4c0 [ 10.503398][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 10.503400][ T198] ? console_flush_one_record+0x106/0x710 [ 10.503402][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.503404][ T198] ? lock_acquire+0x13c/0x160 [ 10.503408][ T198] console_flush_one_record+0x46f/0x710 [ 10.503413][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 10.503414][ T198] ? __lock_acquire+0x518/0xc20 [ 10.503420][ T198] console_unlock+0xee/0x1f0 [ 10.503422][ T198] ? console_flush_one_record+0x710/0x710 [ 10.503423][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.503425][ T198] ? lock_acquire+0x60/0x160 [ 10.503429][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.503431][ T198] ? vprintk_emit+0x320/0x3e0 [ 10.503434][ T198] vprintk_emit+0x37c/0x3e0 [ 10.503437][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 10.503439][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 10.503442][ T198] ? __lock_acquire+0x518/0xc20 [ 10.503446][ T198] _printk+0xc7/0x100 [ 10.503451][ T198] ? snapshot_read.cold+0x21/0x21 [ 10.503456][ T198] ? do_raw_spin_lock+0x131/0x280 [ 10.503460][ T198] ? __rwlock_init+0x150/0x150 [ 10.503464][ T198] ? do_raw_spin_lock+0x131/0x280 [ 10.503467][ T198] do_exit.cold+0x82/0x9c [ 10.503471][ T198] ? exit_notify+0x890/0x890 [ 10.503472][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 10.503475][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.503479][ T198] do_group_exit+0xb8/0x370 [ 10.503482][ T198] __x64_sys_exit_group+0x3c/0x50 [ 10.503485][ T198] x64_sys_call+0x1567/0x1570 [ 10.503487][ T198] do_syscall_64+0xff/0x530 [ 10.503491][ T198] ? irq_exit_rcu+0x1a/0x30 [ 10.503494][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.503497][ T198] RIP: 0033:0x479678 [ 10.503499][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 10.503500][ T198] RSP: 002b:00007ffdd88cd238 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.503503][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.503504][ T198] RDX: 0000000003b78708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.503505][ T198] RBP: 00007ffdd88cd290 R08: 0000000000000000 R09: 0000000003b793e0 [ 10.503506][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffdd88cd3c8 [ 10.503507][ T198] R13: 00007ffdd88cd450 R14: 0000000000000000 R15: 000000000054d560 [ 10.503515][ T198]