rh_kselftests_vm.mm: updates the pattern based on the guest OS version

The output of the selftests changes, for RHEL 8 versions, it
seems to not contain hastags '#' at the beggining of each line.
Opportunistically, increase the RPM download timeout.

Signed-off-by: mcasquer <mcasquer@redhat.com>

qemu/tests/cfg/rh_kselftests_vm.cfg

@@ -6,6 +6,9 @@
     kselftests_path = "/usr/libexec/kselftests"
     variants:
         - mm:
+            summary_pattern = "\# SUMMARY.+"
+            RHEL.8:
+                summary_pattern = "SUMMARY.+"
             s390x:
                 kvm_module_parameters = 'hpage=1'
                 whitelist = "hugetlb_fault_after_madv"

qemu/tests/rh_kselftests_vm.py

@@ -30,7 +30,7 @@ def run(test, params, env):
     session.cmd("cd %s" % kernel_path)
     session.cmd(
         "brew download-build --rpm kernel-selftests-internal-%s.rpm" % kernel_version,
-        180,
+        240,
     )
 
     error_context.context("Install the RPM", test.log.debug)
@@ -41,14 +41,15 @@ def run(test, params, env):
         s, o = session.cmd_status_output(tests_execution_cmd, 180)
         test.log.info("The selftests results: %s", o)
 
-        summary = re.findall(r"\# SUMMARY.+", o)
-        num_failed_tests = int(re.findall(r"FAIL\=\d+", str(summary))[0].split("=")[1])
+        fail_match = re.search(r"SUMMARY:.+FAIL=(?P<fail>\d+?)", o)
+        num_failed_tests = int(fail_match.group("fail"))
         test.log.debug("Number of failed tests: %d", num_failed_tests)
 
         if num_failed_tests != 0:
             test.fail("Failed selftests found in the execution")
 
-        num_skipped_tests = int(re.findall(r"SKIP\=\d+", str(summary))[0].split("=")[1])
+        skip_match = re.search(r"SUMMARY:.+SKIP=(?P<skip>\d+?)", o)
+        num_skipped_tests = int(skip_match.group("skip"))
         test.log.debug("Number of skipped tests: %d", num_skipped_tests)
 
         skipped_list = []