A method to verify guest kernel panics can be very
useful for a number of tests. Adapted from a function
present on virtio_console test, create VM.verify_kernel_crash()
and use it on unattended_install.
Changes from v1:
* According to mgoldish's comments, instead of using
read_nonblocking() and read_until_last_line_matches(),
use simply get_output(), and only throw an exception
at the time we have a full trace.
Changes from v3:
* Reimplementing the method on a less moronic fashion.
Signed-off-by: Lucas Meneghel Rodrigues <lmr@xxxxxxxxxx>
---
client/tests/kvm/kvm_vm.py | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/client/tests/kvm/kvm_vm.py b/client/tests/kvm/kvm_vm.py
index 43ae79c..8114670 100755
--- a/client/tests/kvm/kvm_vm.py
+++ b/client/tests/kvm/kvm_vm.py
@@ -105,6 +105,15 @@ class VMDeadError(VMError):
(self.status, self.output))
+class VMDeadKernelCrashError(VMError):
+ def __init__(self, kernel_crash):
+ VMError.__init__(self, kernel_crash)
+ self.kernel_crash = kernel_crash
+
+ def __str__(self):
+ return ("VM is dead due to a kernel crash:\n%s" % self.kernel_crash)
+
+
class VMAddressError(VMError):
pass
@@ -1158,6 +1167,20 @@ class VM:
return not self.process or not self.process.is_alive()
+ def verify_kernel_crash(self):
+ """
+ Find kernel crash message on the VM serial console.
+
+ @raise: VMDeadKernelCrashError, in case a kernel crash message was
+ found.
+ """
+ data = self.serial_console.get_output()
+ match = re.search(r"BUG:.*---\[ end trace .* \]---", data,
+ re.DOTALL|re.MULTILINE)
+ if match is not None:
+ raise VMDeadKernelCrashError(match.group(0))
+
+
def get_params(self):
"""
Return the VM's params dict. Most modified params take effect only
--
1.7.4
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