Assume that you run an instance of Microsoft SQL Server 2017, 2016 or 2014. When you run an online index rebuild or a merge statement, you may experience a timeout and an error in the errorlog followed by a stack dump. The error message is similar to the following:
Date/Time spid55 A time-out occurred while waiting for buffer latch -- type 4, bp 000002CA3B245D00, page 1:456, stat 0x408810b, database id: DatabaseID, allocation unit Id: 72057594307215360, task 0x000002C02C45ACA8 : 0, waittime 300 seconds, flags 0x200000001a, owning task 0x000002C02C45ACA8. Not continuing to wait.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.