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OpTestKernelDump.py: Add test which is taking dump while running perf #976

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Merged
PraveenPenguin merged 1 commit into from
Jul 3, 2026
+34 −0
Merged

OpTestKernelDump.py: Add test which is taking dump while running perf #976

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34 changes: 34 additions & 0 deletions testcases/OpTestKernelDump.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1595,6 +1595,38 @@ def runTest(self):
self.verify_dump_file(boot_type)
self.c.run_command("rm -rf /tmp/ebizzy*")


class KernelCrash_PerfTest(OptestKernelDump):
'''
This test case checks if perf is installed, installs it if not present,
runs a perf test in background, and then triggers a kernel crash to test dump functionality.
'''
def runTest(self):
self.setup_test()
try:
self.c.run_command("which perf", timeout=30)
log.info("perf package already installed...")
except CommandFailed:
log.info("perf not found. Installing...")
try:
if self.distro == "rhel":
self.c.run_command("yum -y install perf", timeout=300)
elif self.distro == "sles":
self.c.run_command("zypper install -y perf", timeout=300)
log.info("perf package installed successfully")
except CommandFailed as e:
log.error(f"Failed to install perf: {e}")
log.info("Running perf test in background...")
# Run perf test in background
self.c.run_command("perf test &")
log.info("perf test started in background successfully")
time.sleep(5)
self.c.run_command("ps -ef|grep perf")
log.info("=============== Testing kdump/fadump with perf ======================")
boot_type = self.kernel_crash()
self.verify_dump_file(boot_type)


class KernelCrash_hugepage_checks(OptestKernelDump):
'''
This test checks hugepage size set after kdump/fadump
Expand Down Expand Up @@ -2995,6 +3027,7 @@ def crash_suite():
s.addTest(KernelCrash_KdumpSAN())
s.addTest(KernelCrash_KdumpDLPAR())
s.addTest(KernelCrash_KdumpWorkLoad())
s.addTest(KernelCrash_PerfTest())
s.addTest(KernelCrash_hugepage_checks())
s.addTest(KernelCrash_XIVE_off())
s.addTest(KernelCrash_disable_radix())
Expand All @@ -3010,6 +3043,7 @@ def crash_suite():
s.addTest(KernelCrash_KdumpSAN())
s.addTest(KernelCrash_KdumpDLPAR())
s.addTest(KernelCrash_KdumpWorkLoad())
s.addTest(KernelCrash_PerfTest())
s.addTest(KernelCrash_hugepage_checks())
s.addTest(KernelCrash_HugepageConfig_16G_16M())
s.addTest(KernelCrash_XIVE_off())
Expand Down
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