[ 11.895725][ T201] packetdrill (201) used greatest stack depth: 23520 bytes left [ 11.895745][ T201] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.895747][ T201] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 201, name: packetdrill [ 11.895749][ T201] preempt_count: 2, expected: 0 [ 11.895750][ T201] RCU nest depth: 0, expected: 0 [ 11.895751][ T201] locks held by packetdrill/201: 5, last CPU#1: [ 11.895753][ T201] #0: ffffffffb5c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.895765][ T201] #1: ffffffffb5d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.895771][ T201] #2: ffffffffb5d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.895774][ T201] #3: ffffffffb5c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.895778][ T201] #4: ffffffffb5c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.895781][ T201] irq event stamp: 4239964 [ 11.895782][ T201] hardirqs last enabled at (4239963): [] __down_trylock_console_sem+0x86/0xa0 [ 11.895786][ T201] hardirqs last disabled at (4239964): [] console_emit_next_record+0x3d4/0x4c0 [ 11.895787][ T201] softirqs last enabled at (4239734): [] tcp_close+0x2b/0xb0 [ 11.895792][ T201] softirqs last disabled at (4239732): [] release_sock+0x21/0x240 [ 11.895796][ T201] Preemption disabled at: [ 11.895797][ T201] [<0000000000000000>] 0x0 [ 11.895803][ T201] CPU: 1 UID: 0 PID: 201 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.895807][ T201] Tainted: [W]=WARN [ 11.895808][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.895810][ T201] Call Trace: [ 11.895816][ T201] [ 11.895818][ T201] dump_stack_lvl+0x6f/0xa0 [ 11.895823][ T201] __might_resched.cold+0x1fe/0x2c1 [ 11.895828][ T201] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.895831][ T201] ? __kmalloc_noprof+0xdb/0x760 [ 11.895836][ T201] __kmalloc_noprof+0x443/0x760 [ 11.895839][ T201] ? alloc_buf.isra.0+0x4b/0x260 [ 11.895845][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 11.895848][ T201] alloc_buf.isra.0+0x4b/0x260 [ 11.895852][ T201] put_chars+0x1e1/0x2f0 [ 11.895855][ T201] ? __send_to_port+0x420/0x420 [ 11.895857][ T201] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.895861][ T201] ? validate_chain+0x38b/0xc20 [ 11.895866][ T201] hvc_console_print+0x292/0x780 [ 11.895873][ T201] ? hvc_write+0x3a0/0x3a0 [ 11.895875][ T201] ? rcu_is_watching+0x16/0xd0 [ 11.895877][ T201] ? lock_acquire+0x13c/0x160 [ 11.895882][ T201] console_emit_next_record+0x22f/0x4c0 [ 11.895885][ T201] ? devkmsg_read+0x4b0/0x4b0 [ 11.895886][ T201] ? console_flush_one_record+0x106/0x710 [ 11.895889][ T201] ? rcu_is_watching+0x16/0xd0 [ 11.895891][ T201] ? lock_acquire+0x13c/0x160 [ 11.895895][ T201] console_flush_one_record+0x46f/0x710 [ 11.895899][ T201] ? console_emit_next_record+0x4c0/0x4c0 [ 11.895900][ T201] ? __lock_acquire+0x518/0xc20 [ 11.895906][ T201] console_unlock+0xee/0x1f0 [ 11.895908][ T201] ? console_flush_one_record+0x710/0x710 [ 11.895909][ T201] ? rcu_is_watching+0x16/0xd0 [ 11.895911][ T201] ? lock_acquire+0x60/0x160 [ 11.895915][ T201] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.895917][ T201] ? vprintk_emit+0x320/0x3e0 [ 11.895920][ T201] vprintk_emit+0x37c/0x3e0 [ 11.895924][ T201] ? wake_up_klogd_work_func+0x90/0x90 [ 11.895925][ T201] ? do_raw_spin_unlock+0x59/0x250 [ 11.895928][ T201] ? __lock_acquire+0x518/0xc20 [ 11.895932][ T201] _printk+0xc7/0x100 [ 11.895936][ T201] ? snapshot_read.cold+0x21/0x21 [ 11.895939][ T201] ? do_raw_spin_lock+0x131/0x280 [ 11.895942][ T201] ? __rwlock_init+0x150/0x150 [ 11.895946][ T201] ? do_raw_spin_lock+0x131/0x280 [ 11.895949][ T201] do_exit.cold+0x82/0x9c [ 11.895952][ T201] ? exit_notify+0x890/0x890 [ 11.895954][ T201] ? __lock_release.isra.0+0x69/0x1a0 [ 11.895957][ T201] ? rcu_is_watching+0x16/0xd0 [ 11.895961][ T201] do_group_exit+0xb8/0x370 [ 11.895964][ T201] __x64_sys_exit_group+0x3c/0x50 [ 11.895966][ T201] x64_sys_call+0x1567/0x1570 [ 11.895969][ T201] do_syscall_64+0xff/0x530 [ 11.895972][ T201] ? irq_exit_rcu+0x1a/0x30 [ 11.895975][ T201] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.895978][ T201] RIP: 0033:0x479678 [ 11.895980][ T201] Code: Unable to access opcode bytes at 0x47964e. [ 11.895981][ T201] RSP: 002b:00007ffde33a8ea8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.895984][ T201] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.895985][ T201] RDX: 0000000010218708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.895986][ T201] RBP: 00007ffde33a8f00 R08: 0000000000000000 R09: 00000000102193e0 [ 11.895987][ T201] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffde33a9038 [ 11.895988][ T201] R13: 00007ffde33a90c0 R14: 0000000000000000 R15: 000000000054d560 [ 11.895995][ T201]