[ 9.919369][ T200] packetdrill (200) used greatest stack depth: 23416 bytes left [ 9.919384][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.919386][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 9.919388][ T200] preempt_count: 2, expected: 0 [ 9.919389][ T200] RCU nest depth: 0, expected: 0 [ 9.919389][ T200] locks held by packetdrill/200: 5, last CPU#3: [ 9.919392][ T200] #0: ffffffffb4e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.919407][ T200] #1: ffffffffb4f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.919412][ T200] #2: ffffffffb4f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.919415][ T200] #3: ffffffffb4e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.919418][ T200] #4: ffffffffb4e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.919421][ T200] irq event stamp: 4180254 [ 9.919422][ T200] hardirqs last enabled at (4180253): [] __down_trylock_console_sem+0x86/0xa0 [ 9.919425][ T200] hardirqs last disabled at (4180254): [] console_emit_next_record+0x3d4/0x4c0 [ 9.919427][ T200] softirqs last enabled at (4180154): [] tcp_get_info.part.0+0x1d03/0x2610 [ 9.919431][ T200] softirqs last disabled at (4180152): [] __lock_sock_fast+0x37/0xe0 [ 9.919434][ T200] Preemption disabled at: [ 9.919435][ T200] [<0000000000000000>] 0x0 [ 9.919441][ T200] CPU: 3 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.919445][ T200] Tainted: [W]=WARN [ 9.919446][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.919447][ T200] Call Trace: [ 9.919449][ T200] [ 9.919450][ T200] dump_stack_lvl+0x6f/0xa0 [ 9.919456][ T200] __might_resched.cold+0x1fe/0x2c1 [ 9.919460][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.919463][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 9.919469][ T200] __kmalloc_noprof+0x443/0x760 [ 9.919471][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 9.919477][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 9.919479][ T200] alloc_buf.isra.0+0x4b/0x260 [ 9.919482][ T200] put_chars+0x1e1/0x2f0 [ 9.919485][ T200] ? __send_to_port+0x420/0x420 [ 9.919487][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.919491][ T200] ? validate_chain+0x38b/0xc20 [ 9.919496][ T200] hvc_console_print+0x292/0x780 [ 9.919502][ T200] ? hvc_write+0x3a0/0x3a0 [ 9.919505][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.919507][ T200] ? lock_acquire+0x13c/0x160 [ 9.919510][ T200] console_emit_next_record+0x22f/0x4c0 [ 9.919514][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 9.919515][ T200] ? console_flush_one_record+0x106/0x710 [ 9.919518][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.919519][ T200] ? lock_acquire+0x13c/0x160 [ 9.919523][ T200] console_flush_one_record+0x46f/0x710 [ 9.919527][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 9.919528][ T200] ? __lock_acquire+0x518/0xc20 [ 9.919533][ T200] console_unlock+0xee/0x1f0 [ 9.919535][ T200] ? console_flush_one_record+0x710/0x710 [ 9.919536][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.919538][ T200] ? lock_acquire+0x60/0x160 [ 9.919542][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.919544][ T200] ? vprintk_emit+0x320/0x3e0 [ 9.919546][ T200] vprintk_emit+0x37c/0x3e0 [ 9.919549][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 9.919552][ T200] ? __lock_acquire+0x518/0xc20 [ 9.919556][ T200] _printk+0xc7/0x100 [ 9.919560][ T200] ? snapshot_read.cold+0x21/0x21 [ 9.919562][ T200] ? do_raw_spin_lock+0x131/0x280 [ 9.919565][ T200] ? __rwlock_init+0x150/0x150 [ 9.919569][ T200] ? do_raw_spin_lock+0x131/0x280 [ 9.919572][ T200] do_exit.cold+0x82/0x9c [ 9.919575][ T200] ? exit_notify+0x890/0x890 [ 9.919576][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 9.919579][ T200] ? rcu_is_watching+0x16/0xd0 [ 9.919583][ T200] do_group_exit+0xb8/0x370 [ 9.919586][ T200] __x64_sys_exit_group+0x3c/0x50 [ 9.919588][ T200] x64_sys_call+0x1567/0x1570 [ 9.919590][ T200] do_syscall_64+0xff/0x530 [ 9.919594][ T200] ? irq_exit_rcu+0x1a/0x30 [ 9.919597][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.919599][ T200] RIP: 0033:0x479678 [ 9.919604][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 9.919605][ T200] RSP: 002b:00007ffc1d253008 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.919607][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 9.919609][ T200] RDX: 000000001cc7f708 RSI: fffffffffffffff0 RDI: 0000000000000001 [ 9.919609][ T200] RBP: 00007ffc1d253060 R08: 0000000000000000 R09: 000000001cc803e0 [ 9.919610][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc1d253658 [ 9.919611][ T200] R13: 00007ffc1d2536e0 R14: 0000000000000001 R15: 000000000054d560 [ 9.919618][ T200]