[ 10.742664][ T168] packetdrill (168) used greatest stack depth: 24032 bytes left [ 10.742681][ T168] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.742684][ T168] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 168, name: packetdrill [ 10.742685][ T168] preempt_count: 2, expected: 0 [ 10.742686][ T168] RCU nest depth: 0, expected: 0 [ 10.742687][ T168] locks held by packetdrill/168: 5, last CPU#2: [ 10.742689][ T168] #0: ffffffff936027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.742701][ T168] #1: ffffffff93769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.742706][ T168] #2: ffffffff93769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.742709][ T168] #3: ffffffff93689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.742713][ T168] #4: ffffffff93689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.742716][ T168] irq event stamp: 4351672 [ 10.742717][ T168] hardirqs last enabled at (4351671): [] __down_trylock_console_sem+0x86/0xa0 [ 10.742721][ T168] hardirqs last disabled at (4351672): [] console_emit_next_record+0x3d4/0x4c0 [ 10.742722][ T168] softirqs last enabled at (4349574): [] handle_softirqs+0x67c/0x900 [ 10.742724][ T168] softirqs last disabled at (4349075): [] __irq_exit_rcu+0x145/0x1c0 [ 10.742726][ T168] Preemption disabled at: [ 10.742727][ T168] [<0000000000000000>] 0x0 [ 10.742734][ T168] CPU: 2 UID: 0 PID: 168 Comm: packetdrill Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.742738][ T168] Tainted: [W]=WARN [ 10.742738][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.742740][ T168] Call Trace: [ 10.742742][ T168] [ 10.742743][ T168] dump_stack_lvl+0x6f/0xa0 [ 10.742749][ T168] __might_resched.cold+0x1fe/0x2c1 [ 10.742753][ T168] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.742756][ T168] ? __kmalloc_noprof+0xdb/0x760 [ 10.742762][ T168] __kmalloc_noprof+0x443/0x760 [ 10.742764][ T168] ? alloc_buf.isra.0+0x4b/0x260 [ 10.742770][ T168] ? do_raw_spin_unlock+0x59/0x250 [ 10.742773][ T168] alloc_buf.isra.0+0x4b/0x260 [ 10.742776][ T168] put_chars+0x1e1/0x2f0 [ 10.742779][ T168] ? __send_to_port+0x420/0x420 [ 10.742781][ T168] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.742785][ T168] ? validate_chain+0x38b/0xc20 [ 10.742790][ T168] hvc_console_print+0x292/0x780 [ 10.742797][ T168] ? hvc_write+0x3a0/0x3a0 [ 10.742799][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.742801][ T168] ? lock_acquire+0x13c/0x160 [ 10.742805][ T168] console_emit_next_record+0x22f/0x4c0 [ 10.742808][ T168] ? devkmsg_read+0x4b0/0x4b0 [ 10.742809][ T168] ? console_flush_one_record+0x106/0x710 [ 10.742812][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.742814][ T168] ? lock_acquire+0x13c/0x160 [ 10.742818][ T168] console_flush_one_record+0x46f/0x710 [ 10.742821][ T168] ? console_emit_next_record+0x4c0/0x4c0 [ 10.742823][ T168] ? __lock_acquire+0x518/0xc20 [ 10.742828][ T168] console_unlock+0xee/0x1f0 [ 10.742830][ T168] ? console_flush_one_record+0x710/0x710 [ 10.742831][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.742833][ T168] ? lock_acquire+0x60/0x160 [ 10.742837][ T168] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.742839][ T168] ? vprintk_emit+0x320/0x3e0 [ 10.742841][ T168] vprintk_emit+0x37c/0x3e0 [ 10.742844][ T168] ? wake_up_klogd_work_func+0x90/0x90 [ 10.742847][ T168] ? __lock_acquire+0x518/0xc20 [ 10.742851][ T168] _printk+0xc7/0x100 [ 10.742855][ T168] ? snapshot_read.cold+0x21/0x21 [ 10.742857][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.742860][ T168] ? __rwlock_init+0x150/0x150 [ 10.742864][ T168] ? do_raw_spin_lock+0x131/0x280 [ 10.742867][ T168] do_exit.cold+0x82/0x9c [ 10.742870][ T168] ? exit_notify+0x890/0x890 [ 10.742872][ T168] ? __lock_release.isra.0+0x69/0x1a0 [ 10.742875][ T168] ? rcu_is_watching+0x16/0xd0 [ 10.742878][ T168] do_group_exit+0xb8/0x370 [ 10.742881][ T168] __x64_sys_exit_group+0x3c/0x50 [ 10.742883][ T168] x64_sys_call+0x1567/0x1570 [ 10.742886][ T168] do_syscall_64+0xff/0x530 [ 10.742889][ T168] ? irq_exit_rcu+0x1a/0x30 [ 10.742892][ T168] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.742895][ T168] RIP: 0033:0x479678 [ 10.742897][ T168] Code: Unable to access opcode bytes at 0x47964e. [ 10.742898][ T168] RSP: 002b:00007ffd242dcba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.742901][ T168] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 10.742902][ T168] RDX: 000000001ac39708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 10.742903][ T168] RBP: 00007ffd242dcc00 R08: 0000000000000000 R09: 000000001ac3a3e0 [ 10.742904][ T168] R10: 0000000000000110 R11: 0000000000000246 R12: 00007ffd242dcd38 [ 10.742905][ T168] R13: 00007ffd242dcdc0 R14: 0000000000000000 R15: 000000000054d560 [ 10.742911][ T168] [ 12.231833][ T155] perl (155) used greatest stack depth: 23840 bytes left [ 12.231853][ T155] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.231855][ T155] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 155, name: perl [ 12.231856][ T155] preempt_count: 2, expected: 0 [ 12.231857][ T155] RCU nest depth: 0, expected: 0 [ 12.231858][ T155] locks held by perl/155: 5, last CPU#0: [ 12.231860][ T155] #0: ffffffff936027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.231872][ T155] #1: ffffffff93769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.231878][ T155] #2: ffffffff93769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.231881][ T155] #3: ffffffff93689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.231884][ T155] #4: ffffffff93689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.231888][ T155] irq event stamp: 67144 [ 12.231889][ T155] hardirqs last enabled at (67143): [] __down_trylock_console_sem+0x86/0xa0 [ 12.231892][ T155] hardirqs last disabled at (67144): [] console_emit_next_record+0x3d4/0x4c0 [ 12.231894][ T155] softirqs last enabled at (65768): [] handle_softirqs+0x67c/0x900 [ 12.231896][ T155] softirqs last disabled at (65761): [] __irq_exit_rcu+0x145/0x1c0 [ 12.231898][ T155] Preemption disabled at: [ 12.231899][ T155] [<0000000000000000>] 0x0 [ 12.231906][ T155] CPU: 0 UID: 0 PID: 155 Comm: perl Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.231909][ T155] Tainted: [W]=WARN [ 12.231910][ T155] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.231912][ T155] Call Trace: [ 12.231913][ T155] [ 12.231915][ T155] dump_stack_lvl+0x6f/0xa0 [ 12.231920][ T155] __might_resched.cold+0x1fe/0x2c1 [ 12.231925][ T155] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.231928][ T155] ? __kmalloc_noprof+0xdb/0x760 [ 12.231933][ T155] __kmalloc_noprof+0x443/0x760 [ 12.231935][ T155] ? alloc_buf.isra.0+0x4b/0x260 [ 12.231942][ T155] ? do_raw_spin_unlock+0x59/0x250 [ 12.231945][ T155] alloc_buf.isra.0+0x4b/0x260 [ 12.231948][ T155] put_chars+0x1e1/0x2f0 [ 12.231951][ T155] ? __send_to_port+0x420/0x420 [ 12.231953][ T155] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.231957][ T155] ? validate_chain+0x38b/0xc20 [ 12.231963][ T155] hvc_console_print+0x292/0x780 [ 12.231969][ T155] ? hvc_write+0x3a0/0x3a0 [ 12.231972][ T155] ? rcu_is_watching+0x16/0xd0 [ 12.231974][ T155] ? lock_acquire+0x13c/0x160 [ 12.231978][ T155] console_emit_next_record+0x22f/0x4c0 [ 12.231985][ T155] ? devkmsg_read+0x4b0/0x4b0 [ 12.231987][ T155] ? console_flush_one_record+0x106/0x710 [ 12.231990][ T155] ? rcu_is_watching+0x16/0xd0 [ 12.231992][ T155] ? lock_acquire+0x13c/0x160 [ 12.231996][ T155] console_flush_one_record+0x46f/0x710 [ 12.232000][ T155] ? console_emit_next_record+0x4c0/0x4c0 [ 12.232001][ T155] ? __lock_acquire+0x518/0xc20 [ 12.232007][ T155] console_unlock+0xee/0x1f0 [ 12.232009][ T155] ? console_flush_one_record+0x710/0x710 [ 12.232011][ T155] ? rcu_is_watching+0x16/0xd0 [ 12.232013][ T155] ? lock_acquire+0x60/0x160 [ 12.232017][ T155] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.232019][ T155] ? vprintk_emit+0x320/0x3e0 [ 12.232022][ T155] vprintk_emit+0x37c/0x3e0 [ 12.232025][ T155] ? wake_up_klogd_work_func+0x90/0x90 [ 12.232028][ T155] ? __lock_acquire+0x518/0xc20 [ 12.232032][ T155] _printk+0xc7/0x100 [ 12.232036][ T155] ? snapshot_read.cold+0x21/0x21 [ 12.232039][ T155] ? do_raw_spin_lock+0x131/0x280 [ 12.232042][ T155] ? __rwlock_init+0x150/0x150 [ 12.232046][ T155] ? do_raw_spin_lock+0x131/0x280 [ 12.232049][ T155] do_exit.cold+0x82/0x9c [ 12.232052][ T155] ? exit_notify+0x890/0x890 [ 12.232054][ T155] ? __lock_release.isra.0+0x69/0x1a0 [ 12.232057][ T155] ? rcu_is_watching+0x16/0xd0 [ 12.232061][ T155] do_group_exit+0xb8/0x370 [ 12.232064][ T155] __x64_sys_exit_group+0x3c/0x50 [ 12.232066][ T155] x64_sys_call+0x1567/0x1570 [ 12.232068][ T155] do_syscall_64+0xff/0x530 [ 12.232072][ T155] ? exc_page_fault+0xee/0x100 [ 12.232075][ T155] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.232077][ T155] RIP: 0033:0x7fa35557d1b8 [ 12.232079][ T155] Code: Unable to access opcode bytes at 0x7fa35557d18e. [ 12.232080][ T155] RSP: 002b:00007ffe11efce88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.232083][ T155] RAX: ffffffffffffffda RBX: 00007fa3556adf88 RCX: 00007fa35557d1b8 [ 12.232084][ T155] RDX: 00007fa35536bcc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 12.232085][ T155] RBP: 00007ffe11efcee0 R08: 0000000000000000 R09: 0000000000000050 [ 12.232086][ T155] R10: 00007ffe11efcce0 R11: 0000000000000246 R12: 0000000000000001 [ 12.232087][ T155] R13: 0000000000000000 R14: 00007fa3556ac680 R15: 00007fa3556adfa0 [ 12.232095][ T155]