[ 23.735501][ T203] packetdrill (203) used greatest stack depth: 24640 bytes left [ 23.735527][ T203] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 23.735543][ T203] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 203, name: packetdrill [ 23.735545][ T203] preempt_count: 2, expected: 0 [ 23.735547][ T203] RCU nest depth: 0, expected: 0 [ 23.735549][ T203] locks held by packetdrill/203: 5, last CPU#0: [ 23.735553][ T203] #0: ffffffffa2e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 23.735570][ T203] #1: ffffffffa2f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 23.735579][ T203] #2: ffffffffa2f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 23.735586][ T203] #3: ffffffffa2e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 23.735592][ T203] #4: ffffffffa2e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 23.735599][ T203] irq event stamp: 2012128 [ 23.735601][ T203] hardirqs last enabled at (2012127): [] __down_trylock_console_sem+0x86/0xa0 [ 23.735606][ T203] hardirqs last disabled at (2012128): [] console_emit_next_record+0x3d4/0x4c0 [ 23.735609][ T203] softirqs last enabled at (2011900): [] tcp_close+0x2b/0xb0 [ 23.735615][ T203] softirqs last disabled at (2011898): [] release_sock+0x21/0x240 [ 23.735620][ T203] Preemption disabled at: [ 23.735621][ T203] [<0000000000000000>] 0x0 [ 23.735632][ T203] CPU: 0 UID: 0 PID: 203 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 23.735637][ T203] Tainted: [W]=WARN [ 23.735639][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.735642][ T203] Call Trace: [ 23.735644][ T203] [ 23.735647][ T203] dump_stack_lvl+0x6f/0xa0 [ 23.735656][ T203] __might_resched.cold+0x1fe/0x2c1 [ 23.735663][ T203] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 23.735669][ T203] ? __kmalloc_noprof+0xdb/0x760 [ 23.735679][ T203] __kmalloc_noprof+0x443/0x760 [ 23.735683][ T203] ? alloc_buf.isra.0+0x4b/0x260 [ 23.735694][ T203] ? do_raw_spin_unlock+0x59/0x250 [ 23.735699][ T203] alloc_buf.isra.0+0x4b/0x260 [ 23.735705][ T203] put_chars+0x1e1/0x2f0 [ 23.735711][ T203] ? __send_to_port+0x420/0x420 [ 23.735714][ T203] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 23.735721][ T203] ? validate_chain+0x38b/0xc20 [ 23.735733][ T203] hvc_console_print+0x292/0x780 [ 23.735746][ T203] ? hvc_write+0x3a0/0x3a0 [ 23.735750][ T203] ? rcu_is_watching+0x16/0xd0 [ 23.735754][ T203] ? lock_acquire+0x13c/0x160 [ 23.735763][ T203] console_emit_next_record+0x22f/0x4c0 [ 23.735770][ T203] ? devkmsg_read+0x4b0/0x4b0 [ 23.735772][ T203] ? console_flush_one_record+0x106/0x710 [ 23.735777][ T203] ? rcu_is_watching+0x16/0xd0 [ 23.735781][ T203] ? lock_acquire+0x13c/0x160 [ 23.735789][ T203] console_flush_one_record+0x46f/0x710 [ 23.735797][ T203] ? console_emit_next_record+0x4c0/0x4c0 [ 23.735800][ T203] ? __lock_acquire+0x518/0xc20 [ 23.735810][ T203] console_unlock+0xee/0x1f0 [ 23.735815][ T203] ? console_flush_one_record+0x710/0x710 [ 23.735818][ T203] ? rcu_is_watching+0x16/0xd0 [ 23.735821][ T203] ? lock_acquire+0x60/0x160 [ 23.735829][ T203] ? __down_trylock_console_sem+0x5e/0xa0 [ 23.735832][ T203] ? vprintk_emit+0x320/0x3e0 [ 23.735838][ T203] vprintk_emit+0x37c/0x3e0 [ 23.735844][ T203] ? wake_up_klogd_work_func+0x90/0x90 [ 23.735851][ T203] ? __lock_acquire+0x518/0xc20 [ 23.735859][ T203] _printk+0xc7/0x100 [ 23.735865][ T203] ? snapshot_read.cold+0x21/0x21 [ 23.735870][ T203] ? do_raw_spin_lock+0x131/0x280 [ 23.735875][ T203] ? __rwlock_init+0x150/0x150 [ 23.735884][ T203] ? do_raw_spin_lock+0x131/0x280 [ 23.735889][ T203] do_exit.cold+0x82/0x9c [ 23.735895][ T203] ? exit_notify+0x890/0x890 [ 23.735899][ T203] ? __lock_release.isra.0+0x69/0x1a0 [ 23.735905][ T203] ? rcu_is_watching+0x16/0xd0 [ 23.735913][ T203] do_group_exit+0xb8/0x370 [ 23.735919][ T203] __x64_sys_exit_group+0x3c/0x50 [ 23.735922][ T203] x64_sys_call+0x1567/0x1570 [ 23.735927][ T203] do_syscall_64+0xff/0x530 [ 23.735933][ T203] ? irq_exit_rcu+0x1a/0x30 [ 23.735938][ T203] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 23.735943][ T203] RIP: 0033:0x479678 [ 23.735948][ T203] Code: Unable to access opcode bytes at 0x47964e. [ 23.735949][ T203] RSP: 002b:00007ffc4429d6f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.735954][ T203] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 23.735956][ T203] RDX: 000000000e6b8708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 23.735958][ T203] RBP: 00007ffc4429d750 R08: 0000000000000000 R09: 000000000e6b93e0 [ 23.735961][ T203] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc4429d888 [ 23.735963][ T203] R13: 00007ffc4429d910 R14: 0000000000000000 R15: 000000000054d560 [ 23.735978][ T203]