[ 13.805458][ T200] packetdrill (200) used greatest stack depth: 24040 bytes left [ 13.805477][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.805479][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 13.805481][ T200] preempt_count: 2, expected: 0 [ 13.805482][ T200] RCU nest depth: 0, expected: 0 [ 13.805483][ T200] locks held by packetdrill/200: 5, last CPU#2: [ 13.805485][ T200] #0: ffffffff982027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.805498][ T200] #1: ffffffff98369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.805503][ T200] #2: ffffffff98369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.805506][ T200] #3: ffffffff98289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.805510][ T200] #4: ffffffff98289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.805513][ T200] irq event stamp: 2518986 [ 13.805514][ T200] hardirqs last enabled at (2518985): [] __down_trylock_console_sem+0x86/0xa0 [ 13.805518][ T200] hardirqs last disabled at (2518986): [] console_emit_next_record+0x3d4/0x4c0 [ 13.805519][ T200] softirqs last enabled at (2518756): [] tcp_close+0x2b/0xb0 [ 13.805524][ T200] softirqs last disabled at (2518754): [] release_sock+0x21/0x240 [ 13.805527][ T200] Preemption disabled at: [ 13.805528][ T200] [<0000000000000000>] 0x0 [ 13.805535][ T200] CPU: 2 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.805539][ T200] Tainted: [W]=WARN [ 13.805540][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.805542][ T200] Call Trace: [ 13.805543][ T200] [ 13.805545][ T200] dump_stack_lvl+0x6f/0xa0 [ 13.805550][ T200] __might_resched.cold+0x1fe/0x2c1 [ 13.805555][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.805558][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 13.805564][ T200] __kmalloc_noprof+0x443/0x760 [ 13.805566][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 13.805572][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 13.805575][ T200] alloc_buf.isra.0+0x4b/0x260 [ 13.805579][ T200] put_chars+0x1e1/0x2f0 [ 13.805582][ T200] ? __send_to_port+0x420/0x420 [ 13.805584][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 13.805588][ T200] ? validate_chain+0x38b/0xc20 [ 13.805593][ T200] hvc_console_print+0x292/0x780 [ 13.805605][ T200] ? hvc_write+0x3a0/0x3a0 [ 13.805607][ T200] ? rcu_is_watching+0x16/0xd0 [ 13.805609][ T200] ? lock_acquire+0x13c/0x160 [ 13.805614][ T200] console_emit_next_record+0x22f/0x4c0 [ 13.805617][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 13.805618][ T200] ? console_flush_one_record+0x106/0x710 [ 13.805621][ T200] ? rcu_is_watching+0x16/0xd0 [ 13.805623][ T200] ? lock_acquire+0x13c/0x160 [ 13.805627][ T200] console_flush_one_record+0x46f/0x710 [ 13.805631][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 13.805632][ T200] ? __lock_acquire+0x518/0xc20 [ 13.805637][ T200] console_unlock+0xee/0x1f0 [ 13.805639][ T200] ? console_flush_one_record+0x710/0x710 [ 13.805641][ T200] ? rcu_is_watching+0x16/0xd0 [ 13.805643][ T200] ? lock_acquire+0x60/0x160 [ 13.805646][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.805648][ T200] ? vprintk_emit+0x320/0x3e0 [ 13.805651][ T200] vprintk_emit+0x37c/0x3e0 [ 13.805654][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 13.805657][ T200] ? __lock_acquire+0x518/0xc20 [ 13.805661][ T200] _printk+0xc7/0x100 [ 13.805665][ T200] ? snapshot_read.cold+0x21/0x21 [ 13.805667][ T200] ? do_raw_spin_lock+0x131/0x280 [ 13.805670][ T200] ? __rwlock_init+0x150/0x150 [ 13.805674][ T200] ? do_raw_spin_lock+0x131/0x280 [ 13.805677][ T200] do_exit.cold+0x82/0x9c [ 13.805681][ T200] ? exit_notify+0x890/0x890 [ 13.805682][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 13.805685][ T200] ? rcu_is_watching+0x16/0xd0 [ 13.805689][ T200] do_group_exit+0xb8/0x370 [ 13.805692][ T200] __x64_sys_exit_group+0x3c/0x50 [ 13.805694][ T200] x64_sys_call+0x1567/0x1570 [ 13.805696][ T200] do_syscall_64+0xff/0x530 [ 13.805700][ T200] ? irq_exit_rcu+0x1a/0x30 [ 13.805703][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.805706][ T200] RIP: 0033:0x479678 [ 13.805708][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 13.805709][ T200] RSP: 002b:00007ffc1f235818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 13.805711][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 13.805713][ T200] RDX: 000000003f3df708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 13.805714][ T200] RBP: 00007ffc1f235870 R08: 0000000000000000 R09: 000000003f3e03e0 [ 13.805715][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc1f2359a8 [ 13.805716][ T200] R13: 00007ffc1f235a30 R14: 0000000000000000 R15: 000000000054d560 [ 13.805722][ T200]