[ 10.766105][ T168] packetdrill (168) used greatest stack depth: 23408 bytes left [ 10.766121][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.766123][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 10.766125][ T168] preempt_count: 2, expected: 0 [ 10.766126][ T168] RCU nest depth: 0, expected: 0 [ 10.766127][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 10.766129][ T168] #0: ffffffffb7c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.766142][ T168] #1: ffffffffb7d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.766147][ T168] #2: ffffffffb7d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.766150][ T168] #3: ffffffffb7c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.766154][ T168] #4: ffffffffb7c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.766157][ T168] irq event stamp: 3917746 [ 10.766158][ T168] hardirqs last enabled at (3917745): [] __down_trylock_console_sem+0x86/0xa0 [ 10.766161][ T168] hardirqs last disabled at (3917746): [] console_emit_next_record+0x3d4/0x4c0 [ 10.766163][ T168] softirqs last enabled at (3912116): [] handle_softirqs+0x67c/0x900 [ 10.766165][ T168] softirqs last disabled at (3911419): [] __irq_exit_rcu+0x145/0x1c0 [ 10.766167][ T168] Preemption disabled at: [ 10.766168][ T168] [<0000000000000000>] 0x0 [ 10.766175][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.766179][ T168] Tainted: [W]=WARN [ 10.766180][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.766182][ T168] Call Trace: [ 10.766183][ T168] [ 10.766185][ T168] dump_stack_lvl+0x6f/0xa0 [ 10.766190][ T168] __might_resched.cold+0x1fe/0x2c1 [ 10.766195][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.766198][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 10.766204][ T168] __kmalloc_noprof+0x443/0x760 [ 10.766206][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 10.766212][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.766215][ T168] alloc_buf.isra.0+0x4b/0x260 [ 10.766219][ T168] put_chars+0x1e1/0x2f0 [ 10.766222][ T168] ? __send_to_port+0x420/0x420 [ 10.766224][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.766228][ T168] ? validate_chain+0x38b/0xc20 [ 10.766233][ T168] hvc_console_print+0x292/0x780 [ 10.766240][ T168] ? hvc_write+0x3a0/0x3a0 [ 10.766242][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.766244][ T168] ? lock_acquire+0x13c/0x160 [ 10.766248][ T168] console_emit_next_record+0x22f/0x4c0 [ 10.766252][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 10.766253][ T168] ? console_flush_one_record+0x106/0x710 [ 10.766255][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.766257][ T168] ? lock_acquire+0x13c/0x160 [ 10.766261][ T168] console_flush_one_record+0x46f/0x710 [ 10.766265][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 10.766266][ T168] ? __lock_acquire+0x518/0xc20 [ 10.766272][ T168] console_unlock+0xee/0x1f0 [ 10.766274][ T168] ? console_flush_one_record+0x710/0x710 [ 10.766275][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.766277][ T168] ? lock_acquire+0x60/0x160 [ 10.766281][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.766283][ T168] ? vprintk_emit+0x320/0x3e0 [ 10.766286][ T168] vprintk_emit+0x37c/0x3e0 [ 10.766289][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 10.766290][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.766293][ T168] ? __lock_acquire+0x518/0xc20 [ 10.766297][ T168] _printk+0xc7/0x100 [ 10.766301][ T168] ? snapshot_read.cold+0x21/0x21 [ 10.766304][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.766307][ T168] ? __rwlock_init+0x150/0x150 [ 10.766311][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.766314][ T168] do_exit.cold+0x82/0x9c [ 10.766317][ T168] ? exit_notify+0x890/0x890 [ 10.766319][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 10.766322][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.766325][ T168] do_group_exit+0xb8/0x370 [ 10.766328][ T168] __x64_sys_exit_group+0x3c/0x50 [ 10.766330][ T168] x64_sys_call+0x1567/0x1570 [ 10.766333][ T168] do_syscall_64+0xff/0x530 [ 10.766337][ T168] ? irq_exit_rcu+0x1a/0x30 [ 10.766340][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.766342][ T168] RIP: 0033:0x479678 [ 10.766344][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 10.766346][ T168] RSP: 002b:00007fff5ef09288 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.766348][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.766349][ T168] RDX: 000000002edd3708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.766350][ T168] RBP: 00007fff5ef092e0 R08: 0000000000000000 R09: 000000002edd43e0 [ 10.766351][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff5ef09418 [ 10.766352][ T168] R13: 00007fff5ef094a0 R14: 0000000000000000 R15: 000000000054d560 [ 10.766359][ T168]