libct/int/checkpoint_test: fix ParentImage (and bogus failure with criu 3.16) #3112
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The ParentImage set by the test should be a path relative to
ImagesDirectory, pointing to a parent images directory (created
by pre-dump).
The parent directory is created by TempDir and so its name is not
constant but has a variable suffix. So, the config was pointing to
a non-existent directory.
This left unnoticed by criu as it assumed the parent image does not
exist, and performed a full dump.
Since criu PR 1403 (will be a part of criu 3.16) that is no longer the
case -- the invalid parent path is treated as an error, and so our
test fails like this:
== RUN TestCheckpoint
checkpoint_test.go:145: === /tmp/criu070876105/dump.log ===
checkpoint_test.go:145: open /tmp/criu070876105/dump.log: no such file or directory
checkpoint_test.go:146: criu failed: type DUMP errno 56
log file: /tmp/criu070876105/dump.log
--- FAIL: TestCheckpoint (0.26s)
Fix this by using the actual name of the parent image dir.
Fixes: 98f0041
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
|
Somewhat related: #2913 @adrianreber @liusdu PTAL |
kolyshkin
changed the title
|
Looks correct. Just recently I did a similar fix in Podman. |
|
LGTM |
|
OK it seems that the same bug is implicitly fixed by commit 3bc606e (which switches to a single upper temp dir and fixed IOW, this is no longer needed. |
This was referenced Nov 15, 2021
Merged
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The ParentImage set by the test should be a path relative to
ImagesDirectory, pointing to a parent images directory (created
by pre-dump).
The parent directory is created by TempDir and so its name is not
constant but has a variable suffix. So, the config was pointing to
a non-existent directory.
This left unnoticed by criu as it assumed the parent image does not
exist, and performed a full dump (meaning the pre-dump was not used).
Since criu PR checkpoint-restore/criu#1403 (which will
be a part of criu 3.16) that is no longer the case -- the invalid parent
path is treated as an error, and so our test fails like this:
Fix this by using the actual name of the parent image dir.
Fixes: 98f0041
Signed-off-by: Kir Kolyshkin kolyshkin@gmail.com