This runs the recording phase with a periodic auto-snapshot.
It also runs the machine for 5 seconds after creating the initial
address map, so as to alow time for a some auto snapshots to be
taken.
In the replay mode a reverse-debugging sequence is added where the
test is run to the end, and reverse-stepped from there. This should
load the last auto-snapshot taken.
The test hangs on x86-64 and aarch64 with autosnapshots, so it is
disabled for them.
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
tests/avocado/reverse_debugging.py | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/tests/avocado/reverse_debugging.py
b/tests/avocado/reverse_debugging.py
index 4bf4e6e1e5..67b72ce519 100644
--- a/tests/avocado/reverse_debugging.py
+++ b/tests/avocado/reverse_debugging.py
@@ -32,9 +32,11 @@ class ReverseDebugging(LinuxKernelTest):
that the execution is stopped at the last of them.
"""
- timeout = 20
+ timeout = 30
STEPS = 10
endian_is_le = True
+ # x86-64 and aarch64 hang with autosnapshot so turn it off by default
+ autosnapshot = False
def run_vm(self, record, shift, args, replay_path, image_path, port):
logger = logging.getLogger('replay')
@@ -47,9 +49,14 @@ def run_vm(self, record, shift, args, replay_path,
image_path, port):
logger.info('replaying the execution...')
mode = 'replay'
vm.add_args('-gdb', 'tcp::%d' % port, '-S')
- vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s,rrsnapshot=init' %
- (shift, mode, replay_path),
- '-net', 'none')
+ if self.autosnapshot:
+ vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s,rrsnapshot=init'
+ ',rrsnapmode=periodic,rrsnapcount=10,'
+ 'rrsnaptime=1' % (shift, mode, replay_path))
+ else:
+ vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s,rrsnapshot=init'
+ % (shift, mode, replay_path))
+ vm.add_args('-net', 'none')
vm.add_args('-drive', 'file=%s,if=none,id=disk0' % image_path)
if args:
vm.add_args(*args)
@@ -184,8 +191,12 @@ def reverse_debugging(self, shift=7, args=None,
x86_workaround=False):
logger.info('continue running')
self.gdb_cont_nowait(g)
- logger.info('running for 1s...')
- time.sleep(1)
+ if self.autosnapshot:
+ logger.info('running for 5s...')
+ time.sleep(5)
+ else:
+ logger.info('running for 1s...')
+ time.sleep(1)
logger.info('stopping to read final icount')
vm.qmp('stop')
self.gdb_break(g)
@@ -365,6 +376,7 @@ def test_ppc64_pseries(self):
# to take the 'hit a breakpoint again' path. That's not a problem,
# just slightly different than the other machines.
self.endian_is_le = False
+ self.autosnapshot = True
self.reverse_debugging()
# See https://gitlab.com/qemu-project/qemu/-/issues/1992
--
2.42.0
