Hi, we are running Citrix Metaframe XP on a Windows 2000 Server. Have been getting random failures the last 6 months that we can't pinpoint the reason of.

They include:

* Sudden reboots where dumpfile are not created (I've set server NOT to reboot)
* BSOD where the creation of minidumps succeed. (see attachments)
* Events where systems throws out all users and it's impossible to log in + all network links go down. The system must be forced down with powerbutton.

Bugcheck code is either 0x50 or 0xD1

I'll attach the latest Minudumps + paste an example below, would be incredibly greatful if someone would have a look. What I've found on the net points towards faulty hardware but I haven't found anything specific and can't bring down the server very often to run tests since it's in production practically all the time.

Matti Jääaro

--
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* *
* Bugcheck Analysis *
* *
*******************************************************************************
Bugcheck code 00000050
Arguments eb689e28 00000000 bf3fbac7 00000000

ChildEBP RetAddr Args to Child
WARNING: Stack unwind information not available. Following frames may be wrong.
eb4d3ae8 00000000 eb689e28 00000000 bf3fbac7 nt+0x4a99a

----- 32 bit Kernel Mini Dump Analysis

DUMP_HEADER32:
MajorVersion 0000000f
MinorVersion 00000893
KdSecondaryVersion 00000000
DirectoryTableBase 00030000
PfnDataBase 890c3000
PsLoadedModuleList 80484520
PsActiveProcessHead 80485c68
MachineImageType 0000014c
NumberProcessors 00000002
BugCheckCode 00000050
BugCheckParameter1 eb689e28
BugCheckParameter2 00000000
BugCheckParameter3 bf3fbac7
BugCheckParameter4 00000000
PaeEnabled 00000000
KdDebuggerDataBlock 804700f0
MiniDumpFields 45474150

TRIAGE_DUMP32:
ServicePackBuild 00000400
SizeOfDump 00010000
ValidOffset 0000fffc
ContextOffset 00000320
ExceptionOffset 000007d0
MmOffset 00001050
UnloadedDriversOffset 00001088
PrcbOffset 00001860
ProcessOffset 00002250
ThreadOffset 000024d8
CallStackOffset 00002720
SizeOfCallStack 00000514
DriverListOffset 00002c34
DriverCount 00000074
StringPoolOffset 00004ea4
StringPoolSize 00002090
BrokenDriverOffset 00000000
TriageOptions 00000041
TopOfStack eb4d3aec


Windows 2000 Kernel Version 2195 (Service Pack 4) MP (2 procs) Free x86 compatible
Kernel base = 0x80400000 PsLoadedModuleList = 0x80484520
Debug session time: Sat Jul 29 11:25:01.500 2006 (GMT+2)
System Uptime: not available
start end module name
80400000 8059dd00 nt Tue Jun 10 23:42:11 2003 (3EE650B3)

Unloaded modules:
eb596000 eb598000 PDRFRAME.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb5bc000 eb5be000 pdcrypt1.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb51e000 eb520000 PDRFRAME.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb536000 eb538000 pdcrypt1.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb566000 eb568000 PDRFRAME.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb56a000 eb56c000 pdcrypt1.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb300000 eb307000 Parport.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
eb160000 eb169000 redbook.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
eb150000 eb160000 serial.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
eb388000 eb38d000 Cdaudio.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
bfdda000 bfddd000 Sfloppy.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
No export analyze found
Finished dump check