From 671bdcec0f91442e02e56a90bb26f5ddbdbb4512 Mon Sep 17 00:00:00 2001
From: Sachin P Bappalige <sachinpb@linux.vnet.ibm.com>
Date: Wed, 20 Sep 2023 06:03:41 -0500
Subject: [PATCH] Add softlockup scenario for kdump/Fadump testing

Signed-off-by: Sachin P Bappalige <sachinpb@linux.vnet.ibm.com>
---
 testcases/PowerNVDump.py | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/testcases/PowerNVDump.py b/testcases/PowerNVDump.py
index 9b1db455b..ff83fd37d 100644
--- a/testcases/PowerNVDump.py
+++ b/testcases/PowerNVDump.py
@@ -64,6 +64,7 @@
 import time
 import re
 import tempfile
+import shutil
 
 import OpTestConfiguration
 import OpTestLogger
@@ -370,6 +371,8 @@ def kernel_crash(self, crash_type="echo_c"):
         elif crash_type == "hmc":
             self.cv_HMC.run_command("chsysstate -r lpar -m %s -n %s -o dumprestart" %
                                    (self.system_name, self.lpar_name), timeout=300)
+        elif crash_type == "lock":
+            self.c.pty.sendline("insmod /tmp/kernel-module-bug-196448/softlockup.ko")
         done = False
         boot_type = BootType.NORMAL
         rc = -1
@@ -1323,6 +1326,39 @@ def runTest(self):
             if not obj.update_kernel_cmdline(self.distro, remove_args="fadump=nocma", reboot=True, reboot_cmd=True):
                 self.fail("KernelArgTest failed to update kernel args")
 
+class KernelCrash_KdumpSoftlockup(PowerNVDump):
+
+    # This test verifies kdump/fadump after inserting softlockup kernel module.
+    # Linux-Debugging url needs to be given in ~/.op-test-framework.conf.
+    # Ex: url=http://liquidtelecom.dl.sourceforge.net/project/ebizzy/ebizzy/0.3/ebizzy-0.3.tar.gz
+
+
+    def runTest(self):
+        self.setup_test()
+        directory_path = "/tmp/kernel-module-bug-196448"
+        # Make sure /tmp/skiboot directory does not exist
+        self.c.run_command("cd /tmp; ls -1; rm -rf %s" % directory_path)
+       
+        #clone this repo
+        r_cmd = "git clone git@github.ibm.com:sjain014/kernel-module-bug-196448.git /tmp/kernel-module-bug-196448"
+        self.c.run_command(r_cmd)
+        time.sleep(20)
+        
+        #compile kernel modeules
+        self.c.run_command("cd /tmp/kernel-module-bug-196448; make")
+        time.sleep(30)
+        
+        #Enable softlockup
+        self.c.run_command("sysctl -w kernel.softlockup_panic=1")
+
+        boot_type = self.kernel_crash(crash_type="lock")
+        self.verify_dump_file(boot_type)
+
+        #Insert kernel module for softlockup
+        #self.c.pty.sendline("insmod /tmp/kernel-module-bug-196448/softlockup.ko")
+        #time.sleep(500)
+        #self.verify_dump_file()
+        
 
 def crash_suite():
     s = unittest.TestSuite()
@@ -1354,5 +1390,6 @@ def crash_suite():
     s.addTest(KernelCrash_DisableAll())
     s.addTest(SkirootKernelCrash())
     s.addTest(OPALCrash_MPIPL())
+    s.addTest(KernelCrash_KdumpSoftlockup())
 
     return s