Fix forkbomb time out on saptune 3.1.3

TEAM-9573 - Test qam-sles4sap_online_dvd_gnome_hana_nvdimm failing in multiple service packs in forkbomb sub-test

tests/sles4sap/forkbomb.pm

@@ -27,6 +27,27 @@ sub run {
     my $sid = get_required_var('INSTANCE_SID');
     my $instance_id = get_required_var('INSTANCE_ID');
     my $sapadm = $self->set_sap_info($sid, $instance_id);
+
+    my $package_version = script_output "rpm -q --qf '%{VERSION}' saptune";
+    record_info('saptune version', $package_version);
+    record_info('Original kernel.pid_max', script_output('sysctl -a | grep kernel.pid_max', proceed_on_failure => 1));
+    my $note_id = '2578899';
+    record_info("Original conf value", script_output("grep kernel.pid_max /usr/share/saptune/notes/$note_id", proceed_on_failure => 1));
+    # Reset kernel.pid_max according to the changes of SAP Note 2578899
+    # See https://github.com/SUSE/saptune/commit/a81168759681a05437e60429de0ddc1e19c703f4
+    # Or see https://github.com/SUSE/saptune/releases/tag/3.1.3 for more details
+    assert_script_run("saptune note revert $note_id");
+    assert_script_run("cp /usr/share/saptune/notes/$note_id /etc/saptune/override/");
+    if (script_output("grep kernel.pid_max /usr/share/saptune/notes/$note_id", proceed_on_failure => 1)) {
+        assert_script_run("sed -i -r \'s/^kernel.pid_max=.*/kernel.pid_max=40000/g\' /etc/saptune/override/$note_id");
+    }
+    else {
+        assert_script_run("echo kernel.pid_max=40000 >> /etc/saptune/override/$note_id");
+    }
+    record_info("Override conf value", script_output("grep kernel.pid_max /etc/saptune/override/$note_id", proceed_on_failure => 1));
+    assert_script_run("saptune note apply $note_id");
+    record_info('Override kernel.pid_max', script_output('sysctl -a | grep kernel.pid_max', proceed_on_failure => 1));
+
     $self->test_forkbomb;
 }