[ 10.184327][ T168] packetdrill (168) used greatest stack depth: 24032 bytes left [ 10.184346][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.184349][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 10.184351][ T168] preempt_count: 2, expected: 0 [ 10.184352][ T168] RCU nest depth: 0, expected: 0 [ 10.184354][ T168] locks held by packetdrill/168: 5, last CPU#1: [ 10.184356][ T168] #0: ffffffffb30027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.184371][ T168] #1: ffffffffb3169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.184378][ T168] #2: ffffffffb3169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.184384][ T168] #3: ffffffffb3089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.184389][ T168] #4: ffffffffb3089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.184395][ T168] irq event stamp: 2513744 [ 10.184396][ T168] hardirqs last enabled at (2513743): [] __down_trylock_console_sem+0x86/0xa0 [ 10.184400][ T168] hardirqs last disabled at (2513744): [] console_emit_next_record+0x3d4/0x4c0 [ 10.184403][ T168] softirqs last enabled at (2513510): [] tcp_close+0x2b/0xb0 [ 10.184408][ T168] softirqs last disabled at (2513508): [] release_sock+0x21/0x240 [ 10.184412][ T168] Preemption disabled at: [ 10.184413][ T168] [<0000000000000000>] 0x0 [ 10.184421][ T168] CPU: 1 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.184426][ T168] Tainted: [W]=WARN [ 10.184427][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.184430][ T168] Call Trace: [ 10.184432][ T168] [ 10.184434][ T168] dump_stack_lvl+0x6f/0xa0 [ 10.184441][ T168] __might_resched.cold+0x1fe/0x2c1 [ 10.184447][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.184452][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 10.184459][ T168] __kmalloc_noprof+0x443/0x760 [ 10.184463][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 10.184472][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.184476][ T168] alloc_buf.isra.0+0x4b/0x260 [ 10.184482][ T168] put_chars+0x1e1/0x2f0 [ 10.184486][ T168] ? __send_to_port+0x420/0x420 [ 10.184489][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.184495][ T168] ? validate_chain+0x38b/0xc20 [ 10.184504][ T168] hvc_console_print+0x292/0x780 [ 10.184515][ T168] ? hvc_write+0x3a0/0x3a0 [ 10.184519][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.184522][ T168] ? lock_acquire+0x13c/0x160 [ 10.184529][ T168] console_emit_next_record+0x22f/0x4c0 [ 10.184535][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 10.184537][ T168] ? console_flush_one_record+0x106/0x710 [ 10.184542][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.184545][ T168] ? lock_acquire+0x13c/0x160 [ 10.184552][ T168] console_flush_one_record+0x46f/0x710 [ 10.184558][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 10.184560][ T168] ? __lock_acquire+0x518/0xc20 [ 10.184570][ T168] console_unlock+0xee/0x1f0 [ 10.184574][ T168] ? console_flush_one_record+0x710/0x710 [ 10.184576][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.184579][ T168] ? lock_acquire+0x60/0x160 [ 10.184585][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.184588][ T168] ? vprintk_emit+0x320/0x3e0 [ 10.184593][ T168] vprintk_emit+0x37c/0x3e0 [ 10.184599][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 10.184601][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.184606][ T168] ? __lock_acquire+0x518/0xc20 [ 10.184612][ T168] _printk+0xc7/0x100 [ 10.184618][ T168] ? snapshot_read.cold+0x21/0x21 [ 10.184622][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.184626][ T168] ? __rwlock_init+0x150/0x150 [ 10.184633][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.184638][ T168] do_exit.cold+0x82/0x9c [ 10.184643][ T168] ? exit_notify+0x890/0x890 [ 10.184645][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 10.184650][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.184656][ T168] do_group_exit+0xb8/0x370 [ 10.184661][ T168] __x64_sys_exit_group+0x3c/0x50 [ 10.184670][ T168] x64_sys_call+0x1567/0x1570 [ 10.184673][ T168] do_syscall_64+0xff/0x530 [ 10.184677][ T168] ? irq_exit_rcu+0x1a/0x30 [ 10.184682][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.184685][ T168] RIP: 0033:0x479678 [ 10.184689][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 10.184690][ T168] RSP: 002b:00007ffe0aad4a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.184693][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.184695][ T168] RDX: 0000000015ade708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.184697][ T168] RBP: 00007ffe0aad4aa0 R08: 0000000000000000 R09: 0000000015adf3e0 [ 10.184698][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffe0aad4bd8 [ 10.184700][ T168] R13: 00007ffe0aad4c60 R14: 0000000000000000 R15: 000000000054d560 [ 10.184713][ T168]