[ 11.028239][ T168] packetdrill (168) used greatest stack depth: 23832 bytes left [ 11.028260][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.028263][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 11.028265][ T168] preempt_count: 2, expected: 0 [ 11.028267][ T168] RCU nest depth: 0, expected: 0 [ 11.028268][ T168] locks held by packetdrill/168: 5, last CPU#3: [ 11.028271][ T168] #0: ffffffffa1e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.028286][ T168] #1: ffffffffa1f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.028293][ T168] #2: ffffffffa1f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.028299][ T168] #3: ffffffffa1e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.028304][ T168] #4: ffffffffa1e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.028310][ T168] irq event stamp: 4140772 [ 11.028311][ T168] hardirqs last enabled at (4140771): [] __down_trylock_console_sem+0x86/0xa0 [ 11.028316][ T168] hardirqs last disabled at (4140772): [] console_emit_next_record+0x3d4/0x4c0 [ 11.028318][ T168] softirqs last enabled at (4140526): [] tcp_close+0x2b/0xb0 [ 11.028323][ T168] softirqs last disabled at (4140524): [] release_sock+0x21/0x240 [ 11.028328][ T168] Preemption disabled at: [ 11.028329][ T168] [<0000000000000000>] 0x0 [ 11.028338][ T168] CPU: 3 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.028343][ T168] Tainted: [W]=WARN [ 11.028344][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.028346][ T168] Call Trace: [ 11.028349][ T168] [ 11.028351][ T168] dump_stack_lvl+0x6f/0xa0 [ 11.028358][ T168] __might_resched.cold+0x1fe/0x2c1 [ 11.028364][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.028369][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 11.028377][ T168] __kmalloc_noprof+0x443/0x760 [ 11.028381][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 11.028390][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.028394][ T168] alloc_buf.isra.0+0x4b/0x260 [ 11.028400][ T168] put_chars+0x1e1/0x2f0 [ 11.028405][ T168] ? __send_to_port+0x420/0x420 [ 11.028407][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.028413][ T168] ? validate_chain+0x38b/0xc20 [ 11.028423][ T168] hvc_console_print+0x292/0x780 [ 11.028434][ T168] ? hvc_write+0x3a0/0x3a0 [ 11.028438][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.028441][ T168] ? lock_acquire+0x13c/0x160 [ 11.028449][ T168] console_emit_next_record+0x22f/0x4c0 [ 11.028455][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 11.028457][ T168] ? console_flush_one_record+0x106/0x710 [ 11.028462][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.028465][ T168] ? lock_acquire+0x13c/0x160 [ 11.028472][ T168] console_flush_one_record+0x46f/0x710 [ 11.028478][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 11.028480][ T168] ? __lock_acquire+0x518/0xc20 [ 11.028495][ T168] console_unlock+0xee/0x1f0 [ 11.028499][ T168] ? console_flush_one_record+0x710/0x710 [ 11.028501][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.028504][ T168] ? lock_acquire+0x60/0x160 [ 11.028511][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.028514][ T168] ? vprintk_emit+0x320/0x3e0 [ 11.028519][ T168] vprintk_emit+0x37c/0x3e0 [ 11.028526][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 11.028528][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.028534][ T168] ? __lock_acquire+0x518/0xc20 [ 11.028540][ T168] _printk+0xc7/0x100 [ 11.028546][ T168] ? snapshot_read.cold+0x21/0x21 [ 11.028551][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.028555][ T168] ? __rwlock_init+0x150/0x150 [ 11.028562][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.028567][ T168] do_exit.cold+0x82/0x9c [ 11.028572][ T168] ? exit_notify+0x890/0x890 [ 11.028574][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 11.028579][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.028589][ T168] do_group_exit+0xb8/0x370 [ 11.028594][ T168] __x64_sys_exit_group+0x3c/0x50 [ 11.028597][ T168] x64_sys_call+0x1567/0x1570 [ 11.028601][ T168] do_syscall_64+0xff/0x530 [ 11.028606][ T168] ? irq_exit_rcu+0x1a/0x30 [ 11.028611][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.028615][ T168] RIP: 0033:0x479678 [ 11.028618][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 11.028620][ T168] RSP: 002b:00007ffd6e895088 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.028623][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.028625][ T168] RDX: 000000001121c708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.028626][ T168] RBP: 00007ffd6e8950e0 R08: 0000000000000000 R09: 000000001121d3e0 [ 11.028628][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd6e895218 [ 11.028629][ T168] R13: 00007ffd6e8952a0 R14: 0000000000000000 R15: 000000000054d560 [ 11.028642][ T168]