Sql Server 2005 A Fatal Error Occurred In .NET Framework Runtime

We've deployed an assembly to a new production sql server 2005 instance, and have been having periodic restarts of sql server. The sql server service appears to be stopping and restarting on it's own since the assembly was deployed.

We've narrowed it down to a decryption method. We haven't been able to produce the issue on a consistant basis. Even if we put a ton of load on the stored procedure calls.

The error is below we receive (I cut out some, so it would fit in the thread), we also have mdmp files, that I've attempted to debug with Visual Studio 2005 and Windbg with no success. I have all the symbols (I'm pretty sure), but I don't have much experience with WinDbg, so it's been slow going.

Here's a little about the environment.

Windows Server 2003 Enterprise x64 SP2
Microsoft SQL Server version 9.00.3042.00 SP2
16 MB physical memory
Quad 3.2 GHz Xeon
3 sets of raid drives.
c: OS
e: sql data
e: sql logs
All Sql and windows patches are up to date.

Only thing I can figure is this is something to do with the .NET libraries. When the assembly was compiled it was set to compile for any CPU. We even tried compiling on the 64 bit OS with no luck still.

If anyone has had a similar issue, it would be most helpful, thanks,
Byron


---------------------------------------------------------------
Memory
MemoryLoad = 9%
Total Physical = 16382 MB
Available Physical = 14760 MB
Total Page File = 32159 MB
Available Page File = 30633 MB
Total Virtual = 8388607 MB
Available Virtual = 8365517 MB
**Dump thread - spid = 56, PSS = 0x0000000092BDFE90, EC = 0x0000000092BDFEA0
***Stack Dump being sent to C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGSQLDump0067.txt
* *******************************************************************************
*
* BEGIN STACK DUMP:
* 10/14/07 15:49:11 spid 56
*
* A fatal error occurred in .NET Framework runtime.
*
* Input Buffer 62 bytes -
* u t i l s . d b 17 00 75 00 74 00 69 00 6c 00 73 00 2e 00 64 00 62 00
* o . d e c r y p t 6f 00 2e 00 64 00 65 00 63 00 72 00 79 00 70 00 74 00
* B a s e 6 4 §@ 42 00 61 00 73 00 65 00 36 00 34 00 00 00 00 01 a7 40
* Ã? 4 1f 09 04 d0 00 34 00 00
*
*
*
* -------------------------------------------------------------------------------
* Short Stack Dump
0000000077D67D8D Module(kernel32+0000000000027D8D)
0000000001D345DE Module(sqlservr+0000000000D345DE)
0000000001D3F3A9 Module(sqlservr+0000000000D3F3A9)
0000000002156D83 Module(sqlservr+0000000001156D83)
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000006427F8F5FFD Module(mscorwks+00000000005C5FFD)
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0000000077EE5F36 Module(ntdll+0000000000025F36)
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000006427FA5089B Module(mscorwks+000000000072089B)
000006427806C7F8 Module(mscorlib.ni+000000000006C7F8)
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FFFFFFFFFFFFFFFE Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
0000000001C52423 Module(sqlservr+0000000000C52423)
0000000000000001 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
00000005010A5F40 Module(UNKNOWN+0000000000000000)
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0000001900000409 Module(UNKNOWN+0000000000000000)
0000000000000001 Module(UNKNOWN+0000000000000000)
0000000000000000 Module(UNKNOWN+0000000000000000)
000000000818E340 Module(UNKNOWN+0000000000000000)
0000000080D262B0 Module(UNKNOWN+0000000000000000)
000006428029C31E Module(UNKNOWN+0000000000000000)
0000000000000004 Module(UNKNOWN+0000000000000000)
000006427F5B3B52 Module(mscorwks+0000000000283B52)
-----------------------