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How to use Diagnose method of vm Package

Best Syzkaller code snippet using vm.Diagnose

vm_test.go

Source:vm_test.go

...38func (inst *testInstance) Run(timeout time.Duration, stop <-chan bool, command string) (39	outc <-chan []byte, errc <-chan error, err error) {40	return inst.outc, inst.errc, nil41}42func (inst *testInstance) Diagnose() ([]byte, bool) {43	var diag []byte44	if inst.diagnoseBug {45		diag = []byte("BUG: DIAGNOSE\n")46	} else {47		diag = []byte("DIAGNOSE\n")48	}49	if inst.diagnoseNoWait {50		return diag, false51	}52	inst.outc <- diag53	return nil, true54}55func (inst *testInstance) Close() {56}57func init() {58	beforeContext = maxErrorLength + 10059	tickerPeriod = 1 * time.Second60	NoOutputTimeout = 5 * time.Second61	waitForOutputTimeout = 3 * time.Second62	ctor := func(env *vmimpl.Env) (vmimpl.Pool, error) {63		return &testPool{}, nil64	}65	vmimpl.Register("test", ctor, false)66}67type Test struct {68	Name           string69	Exit           ExitCondition70	DiagnoseBug    bool // Diagnose produces output that is detected as kernel crash71	DiagnoseNoWait bool // Diagnose returns output directly rather than to console72	Body           func(outc chan []byte, errc chan error)73	Report         *report.Report74}75var tests = []*Test{76	{77		Name: "program-exits-normally",78		Exit: ExitNormal,79		Body: func(outc chan []byte, errc chan error) {80			time.Sleep(time.Second)81			errc <- nil82		},83	},84	{85		Name: "program-exits-when-it-should-not",86		Body: func(outc chan []byte, errc chan error) {87			time.Sleep(time.Second)88			errc <- nil89		},90		Report: &report.Report{91			Title: lostConnectionCrash,92		},93	},94	{95		Name:        "#875-diagnose-bugs",96		Exit:        ExitNormal,97		DiagnoseBug: true,98		Body: func(outc chan []byte, errc chan error) {99			errc <- nil100		},101	},102	{103		Name: "#875-diagnose-bugs-2",104		Body: func(outc chan []byte, errc chan error) {105			errc <- nil106		},107		Report: &report.Report{108			Title: lostConnectionCrash,109			Output: []byte(110				"DIAGNOSE\n",111			),112		},113	},114	{115		Name: "diagnose-no-wait",116		Body: func(outc chan []byte, errc chan error) {117			errc <- nil118		},119		DiagnoseNoWait: true,120		Report: &report.Report{121			Title: lostConnectionCrash,122			Output: []byte(123				"\n" +124					"VM DIAGNOSIS:\n" +125					"DIAGNOSE\n",126			),127		},128	},129	{130		Name: "diagnose-bug-no-wait",131		Body: func(outc chan []byte, errc chan error) {132			outc <- []byte("BUG: bad\n")133			time.Sleep(time.Second)134			outc <- []byte("other output\n")135		},136		DiagnoseNoWait: true,137		Report: &report.Report{138			Title: "BUG: bad",139			Report: []byte(140				"BUG: bad\n" +141					"other output\n",142			),143			Output: []byte(144				"BUG: bad\n" +145					"other output\n" +146					"\n" +147					"VM DIAGNOSIS:\n" +148					"DIAGNOSE\n",149			),150		},151	},152	{153		Name: "kernel-crashes",154		Body: func(outc chan []byte, errc chan error) {155			outc <- []byte("BUG: bad\n")156			time.Sleep(time.Second)157			outc <- []byte("other output\n")158		},159		Report: &report.Report{160			Title: "BUG: bad",161			Report: []byte(162				"BUG: bad\n" +163					"DIAGNOSE\n" +164					"other output\n",165			),166		},167	},168	{169		Name: "fuzzer-is-preempted",170		Body: func(outc chan []byte, errc chan error) {171			outc <- []byte("BUG: bad\n")172			outc <- []byte(fuzzerPreemptedStr + "\n")173		},174	},175	{176		Name: "program-exits-but-kernel-crashes-afterwards",177		Exit: ExitNormal,178		Body: func(outc chan []byte, errc chan error) {179			errc <- nil180			time.Sleep(time.Second)181			outc <- []byte("BUG: bad\n")182		},183		Report: &report.Report{184			Title: "BUG: bad",185			Report: []byte(186				"BUG: bad\n" +187					"DIAGNOSE\n",188			),189		},190	},191	{192		Name: "timeout",193		Exit: ExitTimeout,194		Body: func(outc chan []byte, errc chan error) {195			errc <- vmimpl.ErrTimeout196		},197	},198	{199		Name: "bad-timeout",200		Body: func(outc chan []byte, errc chan error) {201			errc <- vmimpl.ErrTimeout202		},203		Report: &report.Report{204			Title: timeoutCrash,205		},206	},207	{208		Name: "program-crashes",209		Body: func(outc chan []byte, errc chan error) {210			errc <- fmt.Errorf("error")211		},212		Report: &report.Report{213			Title: lostConnectionCrash,214		},215	},216	{217		Name: "program-crashes-expected",218		Exit: ExitError,219		Body: func(outc chan []byte, errc chan error) {220			errc <- fmt.Errorf("error")221		},222	},223	{224		Name: "no-output-1",225		Body: func(outc chan []byte, errc chan error) {226		},227		Report: &report.Report{228			Title: noOutputCrash,229		},230	},231	{232		Name: "no-output-2",233		Body: func(outc chan []byte, errc chan error) {234			for i := 0; i < 5; i++ {235				time.Sleep(time.Second)236				outc <- []byte("something\n")237			}238		},239		Report: &report.Report{240			Title: noOutputCrash,241		},242	},243	{244		Name: "no-no-output-1",245		Exit: ExitNormal,246		Body: func(outc chan []byte, errc chan error) {247			for i := 0; i < 5; i++ {248				time.Sleep(time.Second)249				outc <- []byte(executingProgramStr1 + "\n")250			}251			errc <- nil252		},253	},254	{255		Name: "no-no-output-2",256		Exit: ExitNormal,257		Body: func(outc chan []byte, errc chan error) {258			for i := 0; i < 5; i++ {259				time.Sleep(time.Second)260				outc <- []byte(executingProgramStr2 + "\n")261			}262			errc <- nil263		},264	},265	{266		Name: "outc-closed",267		Exit: ExitTimeout,268		Body: func(outc chan []byte, errc chan error) {269			close(outc)270			time.Sleep(time.Second)271			errc <- vmimpl.ErrTimeout272		},273	},274	{275		Name: "lots-of-output",276		Exit: ExitTimeout,277		Body: func(outc chan []byte, errc chan error) {278			for i := 0; i < 100; i++ {279				outc <- []byte("something\n")280			}281			time.Sleep(time.Second)282			errc <- vmimpl.ErrTimeout283		},284	},285	{286		Name: "split-line",287		Exit: ExitNormal,288		Body: func(outc chan []byte, errc chan error) {289			// "ODEBUG:" lines should be ignored, however the matchPos logic290			// used to trim the lines so that we could see just "BUG:" later291			// and detect it as crash.292			buf := new(bytes.Buffer)293			for i := 0; i < 50; i++ {294				buf.WriteString("[ 2886.597572] ODEBUG: Out of memory. ODEBUG disabled\n")295				buf.Write(bytes.Repeat([]byte{'-'}, i))296				buf.WriteByte('\n')297			}298			output := buf.Bytes()299			for i := range output {300				outc <- output[i : i+1]301			}302			errc <- nil303		},304	},305}306func TestMonitorExecution(t *testing.T) {307	for _, test := range tests {308		test := test309		t.Run(test.Name, func(t *testing.T) {310			t.Parallel()311			testMonitorExecution(t, test)312		})313	}314}315func testMonitorExecution(t *testing.T, test *Test) {316	dir, err := ioutil.TempDir("", "syz-vm-test")317	if err != nil {318		t.Fatal(err)319	}320	defer os.RemoveAll(dir)321	cfg := &mgrconfig.Config{322		Workdir:      dir,323		TargetOS:     "linux",324		TargetArch:   "amd64",325		TargetVMArch: "amd64",326		Type:         "test",327	}328	pool, err := Create(cfg, false)329	if err != nil {330		t.Fatal(err)331	}332	reporter, err := report.NewReporter(cfg)333	if err != nil {334		t.Fatal(err)335	}336	inst, err := pool.Create(0)337	if err != nil {338		t.Fatal(err)339	}340	defer inst.Close()341	outc, errc, err := inst.Run(time.Second, nil, "")342	if err != nil {343		t.Fatal(err)344	}345	testInst := inst.impl.(*testInstance)346	testInst.diagnoseBug = test.DiagnoseBug347	testInst.diagnoseNoWait = test.DiagnoseNoWait348	done := make(chan bool)349	go func() {350		test.Body(testInst.outc, testInst.errc)351		done <- true352	}()353	rep := inst.MonitorExecution(outc, errc, reporter, test.Exit)354	<-done355	if test.Report != nil && rep == nil {356		t.Fatalf("got no report")357	}358	if test.Report == nil && rep != nil {359		t.Fatalf("got unexpected report: %v", rep.Title)360	}361	if test.Report == nil {...

Diagnose

Using AI Code Generation

1import (2func main() {3	fmt.Println(stringutil.Reverse("!oG ,olleH"))4	fmt.Println(icomefromalaska.BearName)5	fmt.Println(icomefromalaska.Diagnose(2))6}

Diagnose

Using AI Code Generation

1import (2func main() {3	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {4		fmt.Fprintf(os.Stderr, "Failed to initialize SDL: %s\n", err)5		os.Exit(1)6	}7	defer sdl.Quit()8	if err = ttf.Init(); err != nil {9		fmt.Fprintf(os.Stderr, "Failed to initialize TTF: %s\n", err)10		os.Exit(1)11	}12	defer ttf.Quit()13	window, err = sdl.CreateWindow("SDL2 TTF Example", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, 800, 600, sdl.WINDOW_SHOWN)14	if err != nil {15		fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err)16		os.Exit(1)17	}18	defer window.Destroy()19	renderer, err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)20	if err != nil {21		fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", err)22		os.Exit(1)23	}24	defer renderer.Destroy()25	font, err = ttf.OpenFont("resources/lazy.ttf", 28)26	if err != nil {27		fmt.Fprintf(os.Stderr, "Failed to open font: %s\n", err)28		os.Exit(1)29	}30	defer font.Close()31	textColor := sdl.Color{R: 0, G: 255, B: 255, A: 255}32	surface, err := font.RenderUTF8_Shaded("Hello World!", textColor, sdl.Color{R: 0, G: 0, B: 0, A: 0})33	if err != nil {34		fmt.Fprintf(os.Stderr, "Failed to render text: %s\n", err)35		os.Exit(1)36	}37	defer surface.Free()38	texture, err := renderer.CreateTextureFromSurface(surface)39	if err != nil {

Diagnose

Using AI Code Generation

1import (2func main() {3 vm := vm.NewVM()4 vm.Diagnose()5 fmt.Println("Diagnose is completed")6}

Diagnose

Using AI Code Generation

1import (2func main() {3	ctx, cancel := context.WithCancel(context.Background())4	defer cancel()5	c, err := GetClient(ctx)6	if err != nil {7		panic(err)8	}9	vmRef, err := GetVMByIP(ctx, c, "

Diagnose

Using AI Code Generation

1import (2func main() {3 vm := virtualmachine.NewVirtualMachine("Pratik", 100)4 vm.Diagnose()5 fmt.Println(vm)6}

Diagnose

Using AI Code Generation

1import (2func main() {3 vm1 := vm.New("vm1")4 vm1.Diagnose()5 fmt.Println(vm1.Name())6}

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