[ 11.450492][ T200] packetdrill (200) used greatest stack depth: 24024 bytes left [ 11.450508][ T200] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.450510][ T200] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 200, name: packetdrill [ 11.450511][ T200] preempt_count: 2, expected: 0 [ 11.450512][ T200] RCU nest depth: 0, expected: 0 [ 11.450513][ T200] locks held by packetdrill/200: 5, last CPU#0: [ 11.450515][ T200] #0: ffffffffb82027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.450527][ T200] #1: ffffffffb8369cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.450532][ T200] #2: ffffffffb8369d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.450536][ T200] #3: ffffffffb8289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.450539][ T200] #4: ffffffffb8289560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.450543][ T200] irq event stamp: 3958272 [ 11.450543][ T200] hardirqs last enabled at (3958271): [] __down_trylock_console_sem+0x86/0xa0 [ 11.450547][ T200] hardirqs last disabled at (3958272): [] console_emit_next_record+0x3d4/0x4c0 [ 11.450548][ T200] softirqs last enabled at (3958044): [] tcp_close+0x2b/0xb0 [ 11.450553][ T200] softirqs last disabled at (3958042): [] release_sock+0x21/0x240 [ 11.450557][ T200] Preemption disabled at: [ 11.450557][ T200] [<0000000000000000>] 0x0 [ 11.450564][ T200] CPU: 0 UID: 0 PID: 200 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.450568][ T200] Tainted: [W]=WARN [ 11.450569][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.450570][ T200] Call Trace: [ 11.450575][ T200] [ 11.450576][ T200] dump_stack_lvl+0x6f/0xa0 [ 11.450582][ T200] __might_resched.cold+0x1fe/0x2c1 [ 11.450586][ T200] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.450590][ T200] ? __kmalloc_noprof+0xdb/0x760 [ 11.450596][ T200] __kmalloc_noprof+0x443/0x760 [ 11.450598][ T200] ? alloc_buf.isra.0+0x4b/0x260 [ 11.450604][ T200] ? do_raw_spin_unlock+0x59/0x250 [ 11.450607][ T200] alloc_buf.isra.0+0x4b/0x260 [ 11.450611][ T200] put_chars+0x1e1/0x2f0 [ 11.450614][ T200] ? __send_to_port+0x420/0x420 [ 11.450616][ T200] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.450620][ T200] ? validate_chain+0x38b/0xc20 [ 11.450626][ T200] hvc_console_print+0x292/0x780 [ 11.450633][ T200] ? hvc_write+0x3a0/0x3a0 [ 11.450635][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.450637][ T200] ? lock_acquire+0x13c/0x160 [ 11.450642][ T200] console_emit_next_record+0x22f/0x4c0 [ 11.450645][ T200] ? devkmsg_read+0x4b0/0x4b0 [ 11.450646][ T200] ? console_flush_one_record+0x106/0x710 [ 11.450649][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.450651][ T200] ? lock_acquire+0x13c/0x160 [ 11.450655][ T200] console_flush_one_record+0x46f/0x710 [ 11.450659][ T200] ? console_emit_next_record+0x4c0/0x4c0 [ 11.450660][ T200] ? __lock_acquire+0x518/0xc20 [ 11.450666][ T200] console_unlock+0xee/0x1f0 [ 11.450668][ T200] ? console_flush_one_record+0x710/0x710 [ 11.450670][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.450671][ T200] ? lock_acquire+0x60/0x160 [ 11.450675][ T200] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.450677][ T200] ? vprintk_emit+0x320/0x3e0 [ 11.450680][ T200] vprintk_emit+0x37c/0x3e0 [ 11.450684][ T200] ? wake_up_klogd_work_func+0x90/0x90 [ 11.450687][ T200] ? __lock_acquire+0x518/0xc20 [ 11.450691][ T200] _printk+0xc7/0x100 [ 11.450695][ T200] ? snapshot_read.cold+0x21/0x21 [ 11.450698][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.450701][ T200] ? __rwlock_init+0x150/0x150 [ 11.450705][ T200] ? do_raw_spin_lock+0x131/0x280 [ 11.450708][ T200] do_exit.cold+0x82/0x9c [ 11.450711][ T200] ? exit_notify+0x890/0x890 [ 11.450713][ T200] ? __lock_release.isra.0+0x69/0x1a0 [ 11.450716][ T200] ? rcu_is_watching+0x16/0xd0 [ 11.450720][ T200] do_group_exit+0xb8/0x370 [ 11.450723][ T200] __x64_sys_exit_group+0x3c/0x50 [ 11.450725][ T200] x64_sys_call+0x1567/0x1570 [ 11.450728][ T200] do_syscall_64+0xff/0x530 [ 11.450731][ T200] ? irq_exit_rcu+0x1a/0x30 [ 11.450734][ T200] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.450736][ T200] RIP: 0033:0x479678 [ 11.450739][ T200] Code: Unable to access opcode bytes at 0x47964e. [ 11.450740][ T200] RSP: 002b:00007ffd331d6d58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.450742][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 11.450744][ T200] RDX: 0000000004f74708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 11.450745][ T200] RBP: 00007ffd331d6db0 R08: 0000000000000000 R09: 0000000004f753e0 [ 11.450746][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd331d6ee8 [ 11.450747][ T200] R13: 00007ffd331d6f70 R14: 0000000000000000 R15: 000000000054d560 [ 11.450754][ T200]