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Mark FastPathStrongRelationLocks volatile.
Otherwise, the compiler might decide to move modifications to datawithin this structure outside the enclosing SpinLockAcquire /SpinLockRelease pair, leading to shared memory corruption.This may or may not explain a recent lmgr-related buildfarm failureon prairiedog, but it needs to be fixed either way.1 parent0f95b72 commit4bc15a8
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