h.ServeHTTP(respRecorder, r)
		reqEndTime := time.Now().UTC()

		if globalTrace.NumSubscribers(madmin.TraceS3|madmin.TraceInternal) == 0 {
			// no subscribers nothing to trace.
			return
		}

		tt := madmin.TraceInternal
		if strings.HasPrefix(tc.FuncName, "s3.") {
			tt = madmin.TraceS3
		}

		// Calculate input body size with headers
		reqHeaders := r.Header.Clone()
		reqHeaders.Set("Host", r.Host)

	"os"
	"regexp"
	"strings"

	"internal/trace"
	"internal/trace/event"
	"internal/trace/event/go122"
	"internal/trace/raw"
	"internal/trace/version"
	"internal/txtar"
)

func Main(f func(*Trace)) {
	// Create an output file.
	out, err := os.Create(os.Args[1])
	if err != nil {
		panic(err.Error())
	}
	defer out.Close()

	// Create a new trace.
	trace := NewTrace()

	// Call the generator.

	v := ctx.Value(TraceParamsKey{})
	// Should match SingleHandler.Call checks.
	switch typed := v.(type) {
	case *MSS:
		trace.Path += typed.ToQuery()
	case map[string]string:
		m := MSS(typed)
		trace.Path += m.ToQuery()
	case *URLValues:
		trace.Path += typed.Values().Encode()
	case *NoPayload, *Bytes:
		trace.Path = fmt.Sprintf("%s?payload=%T", trace.Path, typed)

    "global.tracer.lightstep.address" "meshConfig.defaultConfig.tracing.lightstep.address"
    "global.tracer.lightstep.accessToken" "meshConfig.defaultConfig.tracing.lightstep.accessToken"
    "global.tracer.zipkin.address" "meshConfig.defaultConfig.tracing.zipkin.address"
    "global.tracer.stackdriver.debug" "meshConfig.defaultConfig.tracing.stackdriver.debug"

apiVersion: release-notes/v2
kind: bug-fix
area: telemetry
issue:
  - 49911
releaseNotes:
  - |

	w := tl.writer()
	if pp := tl.mp.p.ptr(); pp != nil && !pp.trace.statusWasTraced(tl.gen) && pp.trace.acquireStatus(tl.gen) {
		w = w.writeProcStatus(uint64(pp.id), procStatus, pp.trace.inSweep)
	}
	if gp := tl.mp.curg; gp != nil && !gp.trace.statusWasTraced(tl.gen) && gp.trace.acquireStatus(tl.gen) {

			CurvePreferences: fips.TLSCurveIDs(),
		},
		// Record incoming and outgoing bytes.
		Incoming: globalConnStats.incInternodeInputBytes,
		Outgoing: globalConnStats.incInternodeOutputBytes,
		TraceTo:  globalTrace,
	})
	if err != nil {
		return err
	}
	globalGrid.Store(g)
	return nil

		print("runtime: goid=", goid, "\n")
		throw("attempted to trace a bad status for a goroutine")
	}

	// Trace the status.
	if stackID == 0 {
		w = w.event(traceEvGoStatus, traceArg(goid), traceArg(uint64(mid)), traceArg(status))
	} else {
		w = w.event(traceEvGoStatusStack, traceArg(goid), traceArg(uint64(mid)), traceArg(status), traceArg(stackID))
	}

	// Trace any special ranges that are in-progress.
	if markAssist {

package runtime

// traceExpWriter is a wrapper around trace writer that produces traceEvExperimentalBatch
// batches. This means that the data written to the writer need not conform to the standard
// trace format.
type traceExpWriter struct {
	traceWriter
	exp traceExperiment
}

// unsafeTraceExpWriter produces a traceExpWriter that doesn't lock the trace.
//
// It should only be used in contexts where either:

	func() {
		// Create a region in the execution trace. Set and clear goroutine
		// labels fully within that region, so we know that any CPU profile
		// sample with the label must also be eligible for inclusion in the
		// execution trace.
		ctx := context.Background()
		defer trace.StartRegion(ctx, "cpuHogger").End()
		pprof.Do(ctx, pprof.Labels("tracing", "on"), func(ctx context.Context) {
			cpuHogger(cpuHog1, &salt1, dur)
		})