[ 10.684527][ T198] packetdrill (198) used greatest stack depth: 23688 bytes left [ 10.684544][ T198] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.684547][ T198] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 198, name: packetdrill [ 10.684548][ T198] preempt_count: 2, expected: 0 [ 10.684549][ T198] RCU nest depth: 0, expected: 0 [ 10.684550][ T198] locks held by packetdrill/198: 5, last CPU#2: [ 10.684552][ T198] #0: ffffffffb5e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.684565][ T198] #1: ffffffffb5f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.684570][ T198] #2: ffffffffb5f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.684573][ T198] #3: ffffffffb5e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.684577][ T198] #4: ffffffffb5e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.684580][ T198] irq event stamp: 3565802 [ 10.684581][ T198] hardirqs last enabled at (3565801): [] __down_trylock_console_sem+0x86/0xa0 [ 10.684585][ T198] hardirqs last disabled at (3565802): [] console_emit_next_record+0x3d4/0x4c0 [ 10.684586][ T198] softirqs last enabled at (3565558): [] tcp_close+0x2b/0xb0 [ 10.684590][ T198] softirqs last disabled at (3565556): [] release_sock+0x21/0x240 [ 10.684594][ T198] Preemption disabled at: [ 10.684594][ T198] [<0000000000000000>] 0x0 [ 10.684602][ T198] CPU: 2 UID: 0 PID: 198 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.684605][ T198] Tainted: [W]=WARN [ 10.684606][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.684608][ T198] Call Trace: [ 10.684609][ T198] [ 10.684611][ T198] dump_stack_lvl+0x6f/0xa0 [ 10.684617][ T198] __might_resched.cold+0x1fe/0x2c1 [ 10.684621][ T198] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.684625][ T198] ? __kmalloc_noprof+0xdb/0x760 [ 10.684630][ T198] __kmalloc_noprof+0x443/0x760 [ 10.684633][ T198] ? alloc_buf.isra.0+0x4b/0x260 [ 10.684639][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 10.684642][ T198] alloc_buf.isra.0+0x4b/0x260 [ 10.684645][ T198] put_chars+0x1e1/0x2f0 [ 10.684648][ T198] ? __send_to_port+0x420/0x420 [ 10.684650][ T198] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.684654][ T198] ? validate_chain+0x38b/0xc20 [ 10.684659][ T198] hvc_console_print+0x292/0x780 [ 10.684666][ T198] ? hvc_write+0x3a0/0x3a0 [ 10.684668][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.684670][ T198] ? lock_acquire+0x13c/0x160 [ 10.684675][ T198] console_emit_next_record+0x22f/0x4c0 [ 10.684678][ T198] ? devkmsg_read+0x4b0/0x4b0 [ 10.684679][ T198] ? console_flush_one_record+0x106/0x710 [ 10.684682][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.684684][ T198] ? lock_acquire+0x13c/0x160 [ 10.684688][ T198] console_flush_one_record+0x46f/0x710 [ 10.684691][ T198] ? console_emit_next_record+0x4c0/0x4c0 [ 10.684693][ T198] ? __lock_acquire+0x518/0xc20 [ 10.684698][ T198] console_unlock+0xee/0x1f0 [ 10.684700][ T198] ? console_flush_one_record+0x710/0x710 [ 10.684702][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.684704][ T198] ? lock_acquire+0x60/0x160 [ 10.684708][ T198] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.684710][ T198] ? vprintk_emit+0x320/0x3e0 [ 10.684713][ T198] vprintk_emit+0x37c/0x3e0 [ 10.684716][ T198] ? wake_up_klogd_work_func+0x90/0x90 [ 10.684717][ T198] ? do_raw_spin_unlock+0x59/0x250 [ 10.684720][ T198] ? __lock_acquire+0x518/0xc20 [ 10.684724][ T198] _printk+0xc7/0x100 [ 10.684728][ T198] ? snapshot_read.cold+0x21/0x21 [ 10.684731][ T198] ? do_raw_spin_lock+0x131/0x280 [ 10.684734][ T198] ? __rwlock_init+0x150/0x150 [ 10.684738][ T198] ? do_raw_spin_lock+0x131/0x280 [ 10.684741][ T198] do_exit.cold+0x82/0x9c [ 10.684745][ T198] ? exit_notify+0x890/0x890 [ 10.684746][ T198] ? __lock_release.isra.0+0x69/0x1a0 [ 10.684749][ T198] ? rcu_is_watching+0x16/0xd0 [ 10.684753][ T198] do_group_exit+0xb8/0x370 [ 10.684756][ T198] __x64_sys_exit_group+0x3c/0x50 [ 10.684758][ T198] x64_sys_call+0x1567/0x1570 [ 10.684760][ T198] do_syscall_64+0xff/0x530 [ 10.684764][ T198] ? irq_exit_rcu+0x1a/0x30 [ 10.684767][ T198] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.684769][ T198] RIP: 0033:0x479678 [ 10.684771][ T198] Code: Unable to access opcode bytes at 0x47964e. [ 10.684773][ T198] RSP: 002b:00007ffc09a6f758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.684775][ T198] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.684777][ T198] RDX: 00000000187ce708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.684778][ T198] RBP: 00007ffc09a6f7b0 R08: 0000000000000000 R09: 00000000187cf3e0 [ 10.684779][ T198] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffc09a6f8e8 [ 10.684780][ T198] R13: 00007ffc09a6f970 R14: 0000000000000000 R15: 000000000054d560 [ 10.684786][ T198]