pkg/report: get only the thread local reports

After this change we'll see only the reports coming from the same thread.

Author: tarasmadan

pkg/report/linux.go

@@ -167,6 +167,7 @@ func (ctx *linux) Parse(output []byte) *Report {
 		rep := &Report{
 			Output:   output,
 			StartPos: startPos,
+			ThreadID: context,
 		}
 		endPos, reportEnd, report, prefix := ctx.findReport(output, oops, startPos, context, questionable)
 		rep.EndPos = endPos

pkg/report/report.go

@@ -76,6 +76,8 @@ type Report struct {
 	reportPrefixLen int
 	// symbolized is set if the report is symbolized. It prevents double symbolization.
 	symbolized bool
+	// On Linux systems it is available with enabled CONFIG_PRINTK_CALLER.
+	ThreadID string
 }
 
 type ExecutorInfo struct {