[ 11.424533][ T167] packetdrill (167) used greatest stack depth: 24232 bytes left [ 11.424551][ T167] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.424553][ T167] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 167, name: packetdrill [ 11.424555][ T167] preempt_count: 2, expected: 0 [ 11.424556][ T167] RCU nest depth: 0, expected: 0 [ 11.424557][ T167] locks held by packetdrill/167: 5, last CPU#0: [ 11.424559][ T167] #0: ffffffff95c027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.424571][ T167] #1: ffffffff95d69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.424576][ T167] #2: ffffffff95d69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.424579][ T167] #3: ffffffff95c89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.424582][ T167] #4: ffffffff95c89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.424586][ T167] irq event stamp: 2848798 [ 11.424587][ T167] hardirqs last enabled at (2848797): [] __down_trylock_console_sem+0x86/0xa0 [ 11.424590][ T167] hardirqs last disabled at (2848798): [] console_emit_next_record+0x3d4/0x4c0 [ 11.424592][ T167] softirqs last enabled at (2848552): [] tcp_close+0x2b/0xb0 [ 11.424596][ T167] softirqs last disabled at (2848550): [] release_sock+0x21/0x240 [ 11.424599][ T167] Preemption disabled at: [ 11.424600][ T167] [<0000000000000000>] 0x0 [ 11.424607][ T167] CPU: 0 UID: 0 PID: 167 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.424611][ T167] Tainted: [W]=WARN [ 11.424612][ T167] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.424613][ T167] Call Trace: [ 11.424615][ T167] [ 11.424617][ T167] dump_stack_lvl+0x6f/0xa0 [ 11.424622][ T167] __might_resched.cold+0x1fe/0x2c1 [ 11.424627][ T167] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.424630][ T167] ? __kmalloc_noprof+0xdb/0x760 [ 11.424635][ T167] __kmalloc_noprof+0x443/0x760 [ 11.424637][ T167] ? alloc_buf.isra.0+0x4b/0x260 [ 11.424643][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 11.424646][ T167] alloc_buf.isra.0+0x4b/0x260 [ 11.424650][ T167] put_chars+0x1e1/0x2f0 [ 11.424653][ T167] ? __send_to_port+0x420/0x420 [ 11.424654][ T167] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.424659][ T167] ? validate_chain+0x38b/0xc20 [ 11.424664][ T167] hvc_console_print+0x292/0x780 [ 11.424671][ T167] ? hvc_write+0x3a0/0x3a0 [ 11.424673][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.424675][ T167] ? lock_acquire+0x13c/0x160 [ 11.424679][ T167] console_emit_next_record+0x22f/0x4c0 [ 11.424683][ T167] ? devkmsg_read+0x4b0/0x4b0 [ 11.424684][ T167] ? console_flush_one_record+0x106/0x710 [ 11.424687][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.424688][ T167] ? lock_acquire+0x13c/0x160 [ 11.424693][ T167] console_flush_one_record+0x46f/0x710 [ 11.424696][ T167] ? console_emit_next_record+0x4c0/0x4c0 [ 11.424697][ T167] ? __lock_acquire+0x518/0xc20 [ 11.424711][ T167] console_unlock+0xee/0x1f0 [ 11.424713][ T167] ? console_flush_one_record+0x710/0x710 [ 11.424715][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.424717][ T167] ? lock_acquire+0x60/0x160 [ 11.424720][ T167] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.424722][ T167] ? vprintk_emit+0x320/0x3e0 [ 11.424725][ T167] vprintk_emit+0x37c/0x3e0 [ 11.424728][ T167] ? wake_up_klogd_work_func+0x90/0x90 [ 11.424730][ T167] ? do_raw_spin_unlock+0x59/0x250 [ 11.424733][ T167] ? __lock_acquire+0x518/0xc20 [ 11.424737][ T167] _printk+0xc7/0x100 [ 11.424741][ T167] ? snapshot_read.cold+0x21/0x21 [ 11.424744][ T167] ? do_raw_spin_lock+0x131/0x280 [ 11.424747][ T167] ? __rwlock_init+0x150/0x150 [ 11.424751][ T167] ? do_raw_spin_lock+0x131/0x280 [ 11.424754][ T167] do_exit.cold+0x82/0x9c [ 11.424758][ T167] ? exit_notify+0x890/0x890 [ 11.424759][ T167] ? __lock_release.isra.0+0x69/0x1a0 [ 11.424762][ T167] ? rcu_is_watching+0x16/0xd0 [ 11.424766][ T167] do_group_exit+0xb8/0x370 [ 11.424769][ T167] __x64_sys_exit_group+0x3c/0x50 [ 11.424771][ T167] x64_sys_call+0x1567/0x1570 [ 11.424774][ T167] do_syscall_64+0xff/0x530 [ 11.424777][ T167] ? irq_exit_rcu+0x1a/0x30 [ 11.424780][ T167] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.424783][ T167] RIP: 0033:0x479678 [ 11.424785][ T167] Code: Unable to access opcode bytes at 0x47964e. [ 11.424786][ T167] RSP: 002b:00007ffcb7788128 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.424788][ T167] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.424789][ T167] RDX: 000000002542f708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.424790][ T167] RBP: 00007ffcb7788180 R08: 0000000000000000 R09: 00000000254303e0 [ 11.424791][ T167] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffcb77882b8 [ 11.424792][ T167] R13: 00007ffcb7788340 R14: 0000000000000000 R15: 000000000054d560 [ 11.424799][ T167]