[1.3] tests/robustness: switch to kill if no panic after 10sec

[fuweid]

If file doesn't grow in 10 sec, bbolt won't trigger the following errors:

• lackOfDiskSpace
• mapError
• resizeFileError
• unmapError

We should switch to kill instead of waiting for panic. In order to trigger these errors, we should increase value size to 512.

(cherry picked from commit 49eb212)

Fixes: #816 (comment)

[fuweid]

ping @ahrtr @tjungblu

[tjungblu]

/lgtm

[ahrtr]

Thanks for the quick fix.

Do you know why your PR #816 did not fail, but the release-1.3 failed after merging your PR?

[fuweid]

Thanks for the quick fix.

Do you know why your PR #816 did not fail, but the release-1.3 failed after merging your PR?

The failpoint was randomly picked and some failpoints only trigger panic during resizing. If the test hit the timing, it will pass.
If not, it won't panic in 10 seconds. This patch is to force to kill the process if it's not panic in time.

[ahrtr]

The failpoint was randomly picked and some failpoints only trigger panic during resizing

thx for the clarification.

[ahrtr]

LGTM

[k8s-ci-robot]

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