This article was previously published under Q198521
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BUG #: 53507 (SQLBUG_70)
Under narrow, but unpredictable timing conditions, SQL Server mayexperience a divide by zero exception which causes the Sqlservr.exe processto stop. No new connections can be made, and current connections are unableto respond. The errorlog will contain a stack trace that contains thiserror:
Process <processno> generated fatal exception c000008e EXCEPTION_FLT_DIVIDE_BY_ZERO.
This problem is more likely to occur when running SQL Server Profiler, but a study of the underlying failure mechanism indicates that it can theoretically happen when running other queries.
The problem is caused by a race condition when initializing a localvariable, so the exact circumstances cannot be predicted.
Before attaching SQL Server Profiler, run this query from any client session:
set statistics time on select 1 set statistics time off
Microsoft has confirmed this to be a problem in SQL Server 7.0. This problem has been corrected in U.S. Service Pack 1 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
232570INF: How to Obtain Service Pack 1 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0
For more information, contact your primary support provider.