SQL 2005 latch waits

Hi,

There are  latch wait errors in our Sharepoint SQL database server logs. This is a SQL 2005 SP4 server on Windows 2003 R2 SP2 (64 bit) active/passive cluster with around 32GB RAM . There are no IO errors or any other errors other than the latch timeout errors. Server is working as expected and wait stats does not indicate anything suspicious. I understand that this error occurred while defragmenting index. Is there any optimization that I can do to prevent such errors? Any advice other than reaching out to Microsoft support?

Thanks in advance

SQL  Errorlog

2012-06-18 19:47:50.04 spid948     Timeout occurred while waiting for latch: class 'ACCESS_METHODS_HOBT_VIRTUAL_ROOT', id 000000022D7A8EA8, type 2, Task 0x00000000891BD438 : 2, waittime 300, flags 0x1a, owning task 0x0000000495303D68. Continuing to wait.
2012-06-18 19:47:50.04 spid948     Timeout occurred while waiting for latch: class 'ACCESS_METHODS_HOBT_VIRTUAL_ROOT', id 000000022D7A8EA8, type 2, Task 0x0000000003C272E8 : 15, waittime 300, flags 0x1a, owning task 0x0000000495303D68. Continuing to wait.
2012-06-18 19:47:50.04 spid948     A time-out occurred while waiting for buffer latch -- type 2, bp 00000001A7FEED00, page 1:3718949, stat 0x8c0000b, database id: 41, allocation unit Id: 72057612347899904, task 0x0000000003C816D8 : 13, waittime 300, flags 0x1a, owning task 0x0000000003C949B8. Not continuing to wait.
2012-06-18 19:47:50.04 spid948     Timeout occurred while waiting for latch: class 'ACCESS_METHODS_HOBT_VIRTUAL_ROOT', id 000000022D7A8EA8, type 2, Task 0x00000005834F25C8 : 4, waittime 300, flags 0x1a, owning task 0x0000000495303D68. Continuing to wait.
2012-06-18 19:47:50.04 spid948     Timeout occurred while waiting for latch: class 'ACCESS_METHODS_HOBT_VIRTUAL_ROOT', id 000000022D7A8EA8, type 2, Task 0x0000000003C63C18 : 9, waittime 300, flags 0x1a, owning task 0x0000000495303D68. Continuing to wait.
2012-06-18 19:47:50.04 spid948     A time-out occurred while waiting for buffer latch -- type 4, bp 0000000604FF0700, page 1:598, stat 0xac0000b, database id: 41, allocation unit Id: 72057612347899904, task 0x0000000495303D68 : 1, waittime 300, flags 0x1018, owning task 0x0000000000000000. Not continuing to wait.
2012-06-18 19:47:50.05 spid948     Using 'dbghelp.dll' version '4.0.5'
2012-06-18 19:47:50.05 spid948     A time-out occurred while waiting for buffer latch -- type 2, bp 00000005D7FC2C00, page 1:3720107, stat 0xbc0000b, database id: 41, allocation unit Id: 72057612347965440, task 0x0000000003C3B828 : 16, waittime 300, flags 0x1a, owning task 0x0000000003C8B588. Not continuing to wait.
2012-06-18 19:47:50.05 spid948     A time-out occurred while waiting for buffer latch -- type 4, bp 00000001A8FE7A80, page 1:3761345, stat 0xde8800b, database id: 41, allocation unit Id: 72057612347965440, task 0x0000000003C949B8 : 12, waittime 300, flags 0x200000001a, owning task 0x0000000003C8B588. Not continuing to wait.
2012-06-18 19:47:50.09 spid948     **Dump thread - spid = 948, PSS = 0x00000005B9095A80, EC = 0x00000005821041C0
2012-06-18 19:47:50.10 spid948     ***Stack Dump being sent to S:\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\SQLDump0008.txt
2012-06-18 19:47:50.10 spid948     * *******************************************************************************
2012-06-18 19:47:50.10 spid948     *
2012-06-18 19:47:50.10 spid948     * BEGIN STACK DUMP:
2012-06-18 19:47:50.10 spid948     *   06/18/12 19:47:50 spid 948
2012-06-18 19:47:50.10 spid948     *
2012-06-18 19:47:50.10 spid948     * Latch timeout
2012-06-18 19:47:50.11 spid948     *
2012-06-18 19:47:50.11 spid948     * Input Buffer 78 bytes -
2012-06-18 19:47:50.11 spid948     *                     16 00 00 00 12 00 00 00 02 00 00 00 00 00 00 00 00 00
2012-06-18 19:47:50.11 spid948     *        d b o . p r  01 00 00 00 1a 00 64 00 62 00 6f 00 2e 00 70 00 72 00
2012-06-18 19:47:50.11 spid948     *  o c _ D e f r a g  6f 00 63 00 5f 00 44 00 65 00 66 00 72 00 61 00 67 00
2012-06-18 19:47:50.11 spid948     *  m e n t I n d i c  6d 00 65 00 6e 00 74 00 49 00 6e 00 64 00 69 00 63 00
2012-06-18 19:47:50.11 spid948     *  e s                65 00 73 00 00 00
2012-06-18 19:47:50.11 spid948     * 
2012-06-18 19:47:50.11 spid948     * *******************************************************************************
2012-06-18 19:47:50.11 spid948     * -------------------------------------------------------------------------------
2012-06-18 19:47:50.11 spid948     * Short Stack Dump
2012-06-18 19:47:50.16 spid948     Stack Signature for the dump is 0x00000000DF7CF376

Output from debugging the Dumpfile:

 ntdll!ZwWaitForSingleObject+0xa
 kernel32!WaitForSingleObjectEx+0x130
 sqlservr!CDmpDump::DumpInternal+0x4a3
 sqlservr!CDmpDump::DumpFilter+0xbc
 sqlservr!CDmpDump::Dump+0xb1
 msvcr80!_C_specific_handler+0x96
 ntdll!RtlpExecuteHandlerForException+0xd
 ntdll!RtlDispatchException+0x1b4
 ntdll!RtlRaiseException+0xae
 kernel32!RaiseException+0x73
 sqlservr!CDmpDump::Dump+0x7c
 sqlservr!CImageHelper::DoMiniDump+0x413
 sqlservr!stackTrace+0x6e7
 sqlservr!LatchBase::DumpOnTimeoutIfNeeded+0x1a0
 sqlservr!LatchBase::PrintWarning+0x1de
 sqlservr!alloca_probe+0x7ff34
 sqlservr!BTreeMgr::Seek+0xfa1
 sqlservr!BTreeMgr::GetHPageIdWithKey+0x19b
 sqlservr!IndexPageManager::GetPageForLinkModification+0x122
 sqlservr!LocatePageForSplit+0x66
 sqlservr!SplitPage+0x1b4
 sqlservr!IndexDataSetSession::InsertSmallRecord+0xbc2
 sqlservr!IndexDataSetSession::InsertRow+0x40e
 sqlservr!IndexDataSetSession::InsertRowFromOIB+0x2d
 sqlservr!RowsetNewSS::InsertRowFromOIB+0x2b
 sqlservr!CValRowCrtIdx::SetDataX+0xfd
 sqlservr!CEs::GeneralEval+0x21cc
 sqlservr!CQScanOnlineIndexNew::NonOptimizedGetAndInsertRows+0x184
 sqlservr!CQScanOnlineIndexNew::GetRow+0x56
 sqlservr!CQScanXProducerNew::ProcessRows<0>+0x4a
 sqlservr!CQScanXProducerNew::Open+0xbc
 sqlservr!FnProducerOpen+0x43
 sqlservr!FnProducerThread+0x3b7
 sqlservr!SubprocEntrypoint+0x4e1
 sqlservr!SOS_Task::Param::Execute+0xee
 sqlservr!SOS_Scheduler::RunTask+0xc9
 sqlservr!SOS_Scheduler::ProcessTasks+0xb4
 sqlservr!SchedulerManager::WorkerEntryPoint+0xe7
 sqlservr!SystemThread::RunWorker+0x59
 sqlservr!SystemThreadDispatcher::ProcessWorker+0x130
 sqlservr!SchedulerManager::ThreadEntryPoint+0x128
 msvcr80!endthreadex+0x47
 msvcr80!endthreadex+0x104
 kernel32!BaseThreadStart+0x3a

Wait stats

Top 10 latch waits from sys.dm_os_latch_stats