Regres: Adjust constants and include error messages

tests/regres/main.go

@@ -59,7 +59,7 @@ const (
 	dataVersion             = 1
 	changeUpdateFrequency   = time.Minute * 5
 	changeQueryFrequency    = time.Minute * 5
-	testTimeout             = time.Minute * 10 // timeout for a single test
+	testTimeout             = time.Minute * 2  // timeout for a single test
 	buildTimeout            = time.Minute * 10 // timeout for a build
 	dailyUpdateTestListHour = 5                // 5am
 	fullTestListRelPath     = "tests/regres/full-tests.json"
@@ -1241,8 +1241,10 @@ nextTest:
 				Test:      name,
 				Status:    testlist.Crash,
 				TimeTaken: duration,
+				Err:       out,
 			}
 		case shell.ErrTimeout:
+			log.Printf("Timeout for test '%v'\n", name)
 			results <- TestResult{
 				Test:      name,
 				Status:    testlist.Timeout,

tests/regres/shell/shell.go

@@ -30,7 +30,7 @@ import (
 )
 
 // MaxProcMemory is the maximum virtual memory per child process
-var MaxProcMemory uint64 = 3 * 1024 * 1024 * 1024 // 3GB
+var MaxProcMemory uint64 = 4 * 1024 * 1024 * 1024 // 4GB
 
 func init() {
 	// As we are going to be running a number of tests concurrently, we need to
@@ -116,9 +116,8 @@ func Exec(timeout time.Duration, exe, wd string, env []string, args ...string) (
 
 	select {
 	case <-time.NewTimer(timeout).C:
-		log.Printf("Timeout for process %v\n", c.Process.Pid)
 		c.Process.Signal(syscall.SIGINT)
-		time.Sleep(time.Second * 5)
+		time.Sleep(time.Second * 3)
 		if !c.ProcessState.Exited() {
 			log.Printf("Process %v still has not exited, killing\n", c.Process.Pid)
 			syscall.Kill(-c.Process.Pid, syscall.SIGKILL)