[ 11.925899][ T168] packetdrill (168) used greatest stack depth: 23856 bytes left [ 11.925916][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.925918][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 11.925920][ T168] preempt_count: 2, expected: 0 [ 11.925921][ T168] RCU nest depth: 0, expected: 0 [ 11.925922][ T168] locks held by packetdrill/168: 5, last CPU#2: [ 11.925924][ T168] #0: ffffffffa64027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.925936][ T168] #1: ffffffffa6569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.925942][ T168] #2: ffffffffa6569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.925945][ T168] #3: ffffffffa6489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.925948][ T168] #4: ffffffffa6489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.925952][ T168] irq event stamp: 3895284 [ 11.925953][ T168] hardirqs last enabled at (3895283): [] __down_trylock_console_sem+0x86/0xa0 [ 11.925956][ T168] hardirqs last disabled at (3895284): [] console_emit_next_record+0x3d4/0x4c0 [ 11.925957][ T168] softirqs last enabled at (3895038): [] tcp_close+0x2b/0xb0 [ 11.925962][ T168] softirqs last disabled at (3895036): [] release_sock+0x21/0x240 [ 11.925965][ T168] Preemption disabled at: [ 11.925966][ T168] [<0000000000000000>] 0x0 [ 11.925973][ T168] CPU: 2 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.925976][ T168] Tainted: [W]=WARN [ 11.925977][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.925979][ T168] Call Trace: [ 11.925981][ T168] [ 11.925983][ T168] dump_stack_lvl+0x6f/0xa0 [ 11.925988][ T168] __might_resched.cold+0x1fe/0x2c1 [ 11.925993][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.925996][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 11.926002][ T168] __kmalloc_noprof+0x443/0x760 [ 11.926004][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 11.926010][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.926013][ T168] alloc_buf.isra.0+0x4b/0x260 [ 11.926016][ T168] put_chars+0x1e1/0x2f0 [ 11.926019][ T168] ? __send_to_port+0x420/0x420 [ 11.926021][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.926025][ T168] ? validate_chain+0x38b/0xc20 [ 11.926030][ T168] hvc_console_print+0x292/0x780 [ 11.926037][ T168] ? hvc_write+0x3a0/0x3a0 [ 11.926039][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.926041][ T168] ? lock_acquire+0x13c/0x160 [ 11.926045][ T168] console_emit_next_record+0x22f/0x4c0 [ 11.926049][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 11.926050][ T168] ? console_flush_one_record+0x106/0x710 [ 11.926053][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.926055][ T168] ? lock_acquire+0x13c/0x160 [ 11.926059][ T168] console_flush_one_record+0x46f/0x710 [ 11.926062][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 11.926064][ T168] ? __lock_acquire+0x518/0xc20 [ 11.926069][ T168] console_unlock+0xee/0x1f0 [ 11.926071][ T168] ? console_flush_one_record+0x710/0x710 [ 11.926073][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.926074][ T168] ? lock_acquire+0x60/0x160 [ 11.926078][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.926080][ T168] ? vprintk_emit+0x320/0x3e0 [ 11.926083][ T168] vprintk_emit+0x37c/0x3e0 [ 11.926086][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 11.926087][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.926091][ T168] ? __lock_acquire+0x518/0xc20 [ 11.926094][ T168] _printk+0xc7/0x100 [ 11.926098][ T168] ? snapshot_read.cold+0x21/0x21 [ 11.926101][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.926103][ T168] ? __rwlock_init+0x150/0x150 [ 11.926107][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.926110][ T168] do_exit.cold+0x82/0x9c [ 11.926114][ T168] ? exit_notify+0x890/0x890 [ 11.926115][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 11.926118][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.926122][ T168] do_group_exit+0xb8/0x370 [ 11.926125][ T168] __x64_sys_exit_group+0x3c/0x50 [ 11.926127][ T168] x64_sys_call+0x1567/0x1570 [ 11.926130][ T168] do_syscall_64+0xff/0x530 [ 11.926133][ T168] ? irq_exit_rcu+0x1a/0x30 [ 11.926136][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.926138][ T168] RIP: 0033:0x479678 [ 11.926141][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 11.926142][ T168] RSP: 002b:00007ffd6af4de38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.926144][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.926146][ T168] RDX: 00000000016c6708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.926147][ T168] RBP: 00007ffd6af4de90 R08: 0000000000000000 R09: 00000000016c73e0 [ 11.926148][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd6af4dfc8 [ 11.926148][ T168] R13: 00007ffd6af4e050 R14: 0000000000000000 R15: 000000000054d560 [ 11.926155][ T168]