[ 10.599965][ T200] packetdrill (200) used greatest stack depth: 22968 bytes left [ 10.599982][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.599984][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 10.599985][ T200] preempt_count: 2, expected: 0 [ 10.599986][ T200] RCU nest depth: 0, expected: 0 [ 10.599987][ T200] locks held by packetdrill/200: 5, last CPU#3: [ 10.599989][ T200] #0: ffffffff93c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.600002][ T200] #1: ffffffff93d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.600007][ T200] #2: ffffffff93d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.600010][ T200] #3: ffffffff93c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.600014][ T200] #4: ffffffff93c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.600017][ T200] irq event stamp: 4238612 [ 10.600018][ T200] hardirqs last enabled at (4238611): [] __down_trylock_console_sem+0x86/0xa0 [ 10.600022][ T200] hardirqs last disabled at (4238612): [] console_emit_next_record+0x3d4/0x4c0 [ 10.600023][ T200] softirqs last enabled at (4236580): [] handle_softirqs+0x67c/0x900 [ 10.600025][ T200] softirqs last disabled at (4236575): [] __irq_exit_rcu+0x145/0x1c0 [ 10.600028][ T200] Preemption disabled at: [ 10.600029][ T200] [<0000000000000000>] 0x0 [ 10.600036][ T200] CPU: 3 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.600040][ T200] Tainted: [W]=WARN [ 10.600041][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.600042][ T200] Call Trace: [ 10.600044][ T200] [ 10.600046][ T200] dump_stack_lvl+0x6f/0xa0 [ 10.600051][ T200] __might_resched.cold+0x1fe/0x2c1 [ 10.600055][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.600059][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 10.600064][ T200] __kmalloc_noprof+0x443/0x760 [ 10.600067][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 10.600073][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 10.600076][ T200] alloc_buf.isra.0+0x4b/0x260 [ 10.600079][ T200] put_chars+0x1e1/0x2f0 [ 10.600082][ T200] ? __send_to_port+0x420/0x420 [ 10.600084][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.600088][ T200] ? validate_chain+0x38b/0xc20 [ 10.600093][ T200] hvc_console_print+0x292/0x780 [ 10.600100][ T200] ? hvc_write+0x3a0/0x3a0 [ 10.600102][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.600104][ T200] ? lock_acquire+0x13c/0x160 [ 10.600108][ T200] console_emit_next_record+0x22f/0x4c0 [ 10.600111][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 10.600113][ T200] ? console_flush_one_record+0x106/0x710 [ 10.600115][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.600117][ T200] ? lock_acquire+0x13c/0x160 [ 10.600121][ T200] console_flush_one_record+0x46f/0x710 [ 10.600125][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 10.600126][ T200] ? __lock_acquire+0x518/0xc20 [ 10.600131][ T200] console_unlock+0xee/0x1f0 [ 10.600133][ T200] ? console_flush_one_record+0x710/0x710 [ 10.600135][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.600137][ T200] ? lock_acquire+0x60/0x160 [ 10.600140][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.600142][ T200] ? vprintk_emit+0x320/0x3e0 [ 10.600145][ T200] vprintk_emit+0x37c/0x3e0 [ 10.600148][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 10.600150][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 10.600153][ T200] ? __lock_acquire+0x518/0xc20 [ 10.600156][ T200] _printk+0xc7/0x100 [ 10.600160][ T200] ? snapshot_read.cold+0x21/0x21 [ 10.600163][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.600166][ T200] ? __rwlock_init+0x150/0x150 [ 10.600170][ T200] ? do_raw_spin_lock+0x131/0x280 [ 10.600173][ T200] do_exit.cold+0x82/0x9c [ 10.600176][ T200] ? exit_notify+0x890/0x890 [ 10.600178][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 10.600181][ T200] ? rcu_is_watching+0x16/0xd0 [ 10.600184][ T200] do_group_exit+0xb8/0x370 [ 10.600187][ T200] __x64_sys_exit_group+0x3c/0x50 [ 10.600189][ T200] x64_sys_call+0x1567/0x1570 [ 10.600192][ T200] do_syscall_64+0xff/0x530 [ 10.600196][ T200] ? irq_exit_rcu+0x1a/0x30 [ 10.600199][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.600201][ T200] RIP: 0033:0x479678 [ 10.600203][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 10.600204][ T200] RSP: 002b:00007fffb1f831b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.600207][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.600209][ T200] RDX: 000000003e0b9708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.600210][ T200] RBP: 00007fffb1f83210 R08: 0000000000000000 R09: 000000003e0ba3e0 [ 10.600210][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fffb1f83348 [ 10.600211][ T200] R13: 00007fffb1f833d0 R14: 0000000000000000 R15: 000000000054d560 [ 10.600218][ T200]