Merge branch 'cherry-pick-0bddef34-21.1' into '21.1'

Sweeping !24401 from master to 21.1.
Add "illegal instruction" to check_log patterns

See merge request !24423

Trigger/TrigValidation/TrigValTools/bin/check_log.pl

@@ -101,7 +101,7 @@ sub scan_logfile(){
   @patterns=();
   if ($errors) {
       push @patterns, "^ERROR | ERROR | FATAL |CRITICAL |ABORT_CHAIN ";
-      push @patterns, "^Exception\:|^Caught signal|^Core dump|Traceback|Shortened traceback|stack trace|^Algorithm stack\:|IncludeError|ImportError|AttributeError|inconsistent use of tabs and spaces in indentation|glibc detected|tcmalloc\: allocation failed|athenaHLT.py\: error"
+      push @patterns, "^Exception\:|^Caught signal|^Core dump|Traceback|Shortened traceback|stack trace|^Algorithm stack\:|IncludeError|ImportError|AttributeError|inconsistent use of tabs and spaces in indentation|glibc detected|tcmalloc\: allocation failed|athenaHLT.py\: error|illegal instruction"
       }
   if ($warnings) {
       push @patterns, "WARNING ";