Looks like Run.execute always acquired a lock on an older build via LogRotator and Run.delete. And using the Change Log History plugin means that when deleting an older build Jenkins also acquires a lock on a newer build, which is a bug in that plugin. And the change in 1.556 means that Run.delete could also (via dropLinks) acquire locks on both older and newer builds, which in combination with the bug in CLH means that deadlocks are possible.

Change By: Jesse Glick (10/Apr/14 2:07 PM)
Labels: deadlock regression  threads
Component/s: changelog-history
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