[ 13.030446][ T203] packetdrill (203) used greatest stack depth: 23824 bytes left [ 13.030462][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.030464][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: packetdrill [ 13.030466][ T203] preempt_count: 2, expected: 0 [ 13.030467][ T203] RCU nest depth: 0, expected: 0 [ 13.030468][ T203] locks held by packetdrill/203: 5, last CPU#3: [ 13.030470][ T203] #0: ffffffffae4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.030485][ T203] #1: ffffffffae569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.030490][ T203] #2: ffffffffae569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.030493][ T203] #3: ffffffffae489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.030497][ T203] #4: ffffffffae489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.030500][ T203] irq event stamp: 4131088 [ 13.030501][ T203] hardirqs last enabled at (4131087): [] __down_trylock_console_sem+0x86/0xa0 [ 13.030505][ T203] hardirqs last disabled at (4131088): [] console_emit_next_record+0x3d4/0x4c0 [ 13.030507][ T203] softirqs last enabled at (4130858): [] tcp_close+0x2b/0xb0 [ 13.030511][ T203] softirqs last disabled at (4130856): [] release_sock+0x21/0x240 [ 13.030515][ T203] Preemption disabled at: [ 13.030516][ T203] [<0000000000000000>] 0x0 [ 13.030522][ T203] CPU: 3 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.030526][ T203] Tainted: [W]=WARN [ 13.030527][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.030529][ T203] Call Trace: [ 13.030530][ T203] [ 13.030532][ T203] dump_stack_lvl+0x6f/0xa0 [ 13.030538][ T203] __might_resched.cold+0x1fe/0x2c1 [ 13.030543][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.030546][ T203] ? __kmalloc_noprof+0xdb/0x760 [ 13.030552][ T203] __kmalloc_noprof+0x443/0x760 [ 13.030554][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 13.030560][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 13.030564][ T203] alloc_buf.isra.0+0x4b/0x260 [ 13.030567][ T203] put_chars+0x1e1/0x2f0 [ 13.030570][ T203] ? __send_to_port+0x420/0x420 [ 13.030572][ T203] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.030576][ T203] ? validate_chain+0x38b/0xc20 [ 13.030582][ T203] hvc_console_print+0x292/0x780 [ 13.030589][ T203] ? hvc_write+0x3a0/0x3a0 [ 13.030591][ T203] ? rcu_is_watching+0x16/0xd0 [ 13.030593][ T203] ? lock_acquire+0x13c/0x160 [ 13.030598][ T203] console_emit_next_record+0x22f/0x4c0 [ 13.030601][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 13.030603][ T203] ? console_flush_one_record+0x106/0x710 [ 13.030605][ T203] ? rcu_is_watching+0x16/0xd0 [ 13.030607][ T203] ? lock_acquire+0x13c/0x160 [ 13.030612][ T203] console_flush_one_record+0x46f/0x710 [ 13.030615][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 13.030617][ T203] ? __lock_acquire+0x518/0xc20 [ 13.030622][ T203] console_unlock+0xee/0x1f0 [ 13.030625][ T203] ? console_flush_one_record+0x710/0x710 [ 13.030626][ T203] ? rcu_is_watching+0x16/0xd0 [ 13.030628][ T203] ? lock_acquire+0x60/0x160 [ 13.030632][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.030634][ T203] ? vprintk_emit+0x320/0x3e0 [ 13.030637][ T203] vprintk_emit+0x37c/0x3e0 [ 13.030640][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 13.030643][ T203] ? __lock_acquire+0x518/0xc20 [ 13.030647][ T203] _printk+0xc7/0x100 [ 13.030652][ T203] ? snapshot_read.cold+0x21/0x21 [ 13.030654][ T203] ? do_raw_spin_lock+0x131/0x280 [ 13.030657][ T203] ? __rwlock_init+0x150/0x150 [ 13.030662][ T203] ? do_raw_spin_lock+0x131/0x280 [ 13.030665][ T203] do_exit.cold+0x82/0x9c [ 13.030668][ T203] ? exit_notify+0x890/0x890 [ 13.030670][ T203] ? __lock_release.isra.0+0x69/0x1a0 [ 13.030673][ T203] ? rcu_is_watching+0x16/0xd0 [ 13.030677][ T203] do_group_exit+0xb8/0x370 [ 13.030680][ T203] __x64_sys_exit_group+0x3c/0x50 [ 13.030682][ T203] x64_sys_call+0x1567/0x1570 [ 13.030685][ T203] do_syscall_64+0xff/0x530 [ 13.030688][ T203] ? irq_exit_rcu+0x1a/0x30 [ 13.030691][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.030694][ T203] RIP: 0033:0x479678 [ 13.030696][ T203] Code: Unable to access opcode bytes at 0x47964e. [ 13.030697][ T203] RSP: 002b:00007ffffc5ec6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.030700][ T203] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 13.030701][ T203] RDX: 000000003318b708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 13.030702][ T203] RBP: 00007ffffc5ec740 R08: 0000000000000000 R09: 000000003318c3e0 [ 13.030703][ T203] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffffc5ec878 [ 13.030704][ T203] R13: 00007ffffc5ec900 R14: 0000000000000000 R15: 000000000054d560 [ 13.030711][ T203]