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One of our SQL2005 Enterprise Servers running on Win2003 became unresponsive and on reboot I saw these errors logged before it went down.

Date 17/09/2009 10:16:22 Log SQL Server (Archive #1 - 17/09/2009 10:17:00)

Source spid111

Message Timeout occurred while waiting for latch: class 'ACCESS_METHODS_SCAN_RANGE_GENERATOR', id 000000002A761760, type 4, Task 0x000000000E609EB8 : 14, waittime 600, flags 0x1a, owning task 0x000000000E6129B8. Continuing to wait.

Anyone know what this error points or relates to? Many thanks in advance.

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Also, around the same time it created a mini stack dump with a "Non-yielding Scheduler" message. – Chirag Sep 17 '09 at 10:46
Does the log file show anything after that? Microsoft has some info at – user3914 Sep 17 '09 at 13:30
Plus some more information here: – user3914 Sep 17 '09 at 13:31
Thanks for the pointers Randolph, but we have been unable to either reproduce the problem or find the root cause. – Chirag Oct 2 '09 at 19:29
up vote 0 down vote accepted

There is a cumulative update fix for the "Non-yielding Scheduler" condition.

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Many Thanks jl, found the KB for the fix, it is available for: SQL 2005: SP3 + CU6 SQL 2008: SP1 + CU5 or just CU8 if SP1 isn't applied – Chirag Dec 13 '09 at 22:14
The fix is described in KB – Chirag Dec 13 '09 at 22:15

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