[ 11.870648][ T168] packetdrill (168) used greatest stack depth: 24240 bytes left [ 11.870664][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.870666][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 11.870668][ T168] preempt_count: 2, expected: 0 [ 11.870669][ T168] RCU nest depth: 0, expected: 0 [ 11.870670][ T168] locks held by packetdrill/168: 5, last CPU#0: [ 11.870672][ T168] #0: ffffffffa1a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.870684][ T168] #1: ffffffffa1b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.870690][ T168] #2: ffffffffa1b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.870693][ T168] #3: ffffffffa1a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.870697][ T168] #4: ffffffffa1a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.870700][ T168] irq event stamp: 4059556 [ 11.870701][ T168] hardirqs last enabled at (4059555): [] __down_trylock_console_sem+0x86/0xa0 [ 11.870704][ T168] hardirqs last disabled at (4059556): [] console_emit_next_record+0x3d4/0x4c0 [ 11.870706][ T168] softirqs last enabled at (4059310): [] tcp_close+0x2b/0xb0 [ 11.870710][ T168] softirqs last disabled at (4059308): [] release_sock+0x21/0x240 [ 11.870714][ T168] Preemption disabled at: [ 11.870714][ T168] [<0000000000000000>] 0x0 [ 11.870721][ T168] CPU: 0 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.870724][ T168] Tainted: [W]=WARN [ 11.870725][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.870727][ T168] Call Trace: [ 11.870729][ T168] [ 11.870730][ T168] dump_stack_lvl+0x6f/0xa0 [ 11.870736][ T168] __might_resched.cold+0x1fe/0x2c1 [ 11.870740][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.870743][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 11.870749][ T168] __kmalloc_noprof+0x443/0x760 [ 11.870752][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 11.870758][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.870761][ T168] alloc_buf.isra.0+0x4b/0x260 [ 11.870764][ T168] put_chars+0x1e1/0x2f0 [ 11.870768][ T168] ? __send_to_port+0x420/0x420 [ 11.870769][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.870773][ T168] ? validate_chain+0x38b/0xc20 [ 11.870779][ T168] hvc_console_print+0x292/0x780 [ 11.870786][ T168] ? hvc_write+0x3a0/0x3a0 [ 11.870788][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.870790][ T168] ? lock_acquire+0x13c/0x160 [ 11.870795][ T168] console_emit_next_record+0x22f/0x4c0 [ 11.870798][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 11.870800][ T168] ? console_flush_one_record+0x106/0x710 [ 11.870802][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.870804][ T168] ? lock_acquire+0x13c/0x160 [ 11.870809][ T168] console_flush_one_record+0x46f/0x710 [ 11.870812][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 11.870814][ T168] ? __lock_acquire+0x518/0xc20 [ 11.870819][ T168] console_unlock+0xee/0x1f0 [ 11.870822][ T168] ? console_flush_one_record+0x710/0x710 [ 11.870823][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.870825][ T168] ? lock_acquire+0x60/0x160 [ 11.870829][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.870831][ T168] ? vprintk_emit+0x320/0x3e0 [ 11.870834][ T168] vprintk_emit+0x37c/0x3e0 [ 11.870837][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 11.870839][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 11.870842][ T168] ? __lock_acquire+0x518/0xc20 [ 11.870846][ T168] _printk+0xc7/0x100 [ 11.870850][ T168] ? snapshot_read.cold+0x21/0x21 [ 11.870853][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.870855][ T168] ? __rwlock_init+0x150/0x150 [ 11.870860][ T168] ? do_raw_spin_lock+0x131/0x280 [ 11.870863][ T168] do_exit.cold+0x82/0x9c [ 11.870866][ T168] ? exit_notify+0x890/0x890 [ 11.870868][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 11.870871][ T168] ? rcu_is_watching+0x16/0xd0 [ 11.870874][ T168] do_group_exit+0xb8/0x370 [ 11.870877][ T168] __x64_sys_exit_group+0x3c/0x50 [ 11.870879][ T168] x64_sys_call+0x1567/0x1570 [ 11.870882][ T168] do_syscall_64+0xff/0x530 [ 11.870886][ T168] ? irq_exit_rcu+0x1a/0x30 [ 11.870889][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.870891][ T168] RIP: 0033:0x479678 [ 11.870893][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 11.870894][ T168] RSP: 002b:00007ffd6612fcc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.870897][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.870898][ T168] RDX: 0000000002693708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.870899][ T168] RBP: 00007ffd6612fd20 R08: 0000000000000000 R09: 00000000026943e0 [ 11.870900][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd6612fe58 [ 11.870901][ T168] R13: 00007ffd6612fee0 R14: 0000000000000000 R15: 000000000054d560 [ 11.870908][ T168]