[ 12.830983][ T203] packetdrill (203) used greatest stack depth: 24000 bytes left [ 12.831000][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.831002][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: packetdrill [ 12.831004][ T203] preempt_count: 2, expected: 0 [ 12.831004][ T203] RCU nest depth: 0, expected: 0 [ 12.831006][ T203] locks held by packetdrill/203: 5, last CPU#3: [ 12.831008][ T203] #0: ffffffffb42027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.831020][ T203] #1: ffffffffb4369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.831026][ T203] #2: ffffffffb4369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.831029][ T203] #3: ffffffffb4289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.831032][ T203] #4: ffffffffb4289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.831035][ T203] irq event stamp: 3957266 [ 12.831036][ T203] hardirqs last enabled at (3957265): [] __down_trylock_console_sem+0x86/0xa0 [ 12.831040][ T203] hardirqs last disabled at (3957266): [] console_emit_next_record+0x3d4/0x4c0 [ 12.831041][ T203] softirqs last enabled at (3957038): [] tcp_close+0x2b/0xb0 [ 12.831045][ T203] softirqs last disabled at (3957036): [] release_sock+0x21/0x240 [ 12.831049][ T203] Preemption disabled at: [ 12.831050][ T203] [<0000000000000000>] 0x0 [ 12.831056][ T203] CPU: 3 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.831060][ T203] Tainted: [W]=WARN [ 12.831060][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.831062][ T203] Call Trace: [ 12.831063][ T203] [ 12.831065][ T203] dump_stack_lvl+0x6f/0xa0 [ 12.831070][ T203] __might_resched.cold+0x1fe/0x2c1 [ 12.831074][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.831077][ T203] ? __kmalloc_noprof+0xdb/0x760 [ 12.831082][ T203] __kmalloc_noprof+0x443/0x760 [ 12.831085][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 12.831091][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 12.831094][ T203] alloc_buf.isra.0+0x4b/0x260 [ 12.831097][ T203] put_chars+0x1e1/0x2f0 [ 12.831100][ T203] ? __send_to_port+0x420/0x420 [ 12.831102][ T203] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.831106][ T203] ? validate_chain+0x38b/0xc20 [ 12.831111][ T203] hvc_console_print+0x292/0x780 [ 12.831117][ T203] ? hvc_write+0x3a0/0x3a0 [ 12.831119][ T203] ? rcu_is_watching+0x16/0xd0 [ 12.831121][ T203] ? lock_acquire+0x13c/0x160 [ 12.831125][ T203] console_emit_next_record+0x22f/0x4c0 [ 12.831129][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 12.831130][ T203] ? console_flush_one_record+0x106/0x710 [ 12.831132][ T203] ? rcu_is_watching+0x16/0xd0 [ 12.831134][ T203] ? lock_acquire+0x13c/0x160 [ 12.831138][ T203] console_flush_one_record+0x46f/0x710 [ 12.831142][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 12.831143][ T203] ? __lock_acquire+0x518/0xc20 [ 12.831148][ T203] console_unlock+0xee/0x1f0 [ 12.831150][ T203] ? console_flush_one_record+0x710/0x710 [ 12.831152][ T203] ? rcu_is_watching+0x16/0xd0 [ 12.831153][ T203] ? lock_acquire+0x60/0x160 [ 12.831157][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.831159][ T203] ? vprintk_emit+0x320/0x3e0 [ 12.831162][ T203] vprintk_emit+0x37c/0x3e0 [ 12.831165][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 12.831167][ T203] ? __lock_acquire+0x518/0xc20 [ 12.831171][ T203] _printk+0xc7/0x100 [ 12.831175][ T203] ? snapshot_read.cold+0x21/0x21 [ 12.831178][ T203] ? do_raw_spin_lock+0x131/0x280 [ 12.831180][ T203] ? __rwlock_init+0x150/0x150 [ 12.831184][ T203] ? do_raw_spin_lock+0x131/0x280 [ 12.831187][ T203] do_exit.cold+0x82/0x9c [ 12.831190][ T203] ? exit_notify+0x890/0x890 [ 12.831192][ T203] ? __lock_release.isra.0+0x69/0x1a0 [ 12.831195][ T203] ? rcu_is_watching+0x16/0xd0 [ 12.831198][ T203] do_group_exit+0xb8/0x370 [ 12.831201][ T203] __x64_sys_exit_group+0x3c/0x50 [ 12.831203][ T203] x64_sys_call+0x1567/0x1570 [ 12.831206][ T203] do_syscall_64+0xff/0x530 [ 12.831209][ T203] ? irq_exit_rcu+0x1a/0x30 [ 12.831212][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.831215][ T203] RIP: 0033:0x479678 [ 12.831217][ T203] Code: Unable to access opcode bytes at 0x47964e. [ 12.831218][ T203] RSP: 002b:00007ffdde2a6018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.831220][ T203] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 12.831222][ T203] RDX: 000000003175e708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 12.831223][ T203] RBP: 00007ffdde2a6070 R08: 0000000000000000 R09: 000000003175f3e0 [ 12.831223][ T203] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffdde2a61a8 [ 12.831224][ T203] R13: 00007ffdde2a6230 R14: 0000000000000000 R15: 000000000054d560 [ 12.831231][ T203]