GPFault in UserLibrary>>dispatchMessage:

Hello,

There is a debug log from a deployed application. I don't know when the
fault raised and can't reproduce it. Any help or suggestions to fix
error are welcome.

--
Dmitry Zamotkin

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Invalid access to memory location. Reading 0xFFFFFFFF, IP 0x1A2BF212 ()

*----> VM Context <----*
Process: {1A010004:size 194 words, suspended frame 1A0102B1, priority
5, callbacks 0
last failure 2:nil, FPE mask 3, thread nil}
Active Method: SessionManager>>logError:
IP: 10F38F99 (9)
SP: 1A0103EC
BP: 1A0103C0 (224)
ActiveFrame: {1A0103C4: cf 1A0103A5, sp 1A0103DC, bp 1A0103C0, ip 5,
BillingSessionManager(SessionManager)>>logError:}
        receiver: a BillingSessionManager
        arg[0]: a GPFault


New Method: VMLibrary>>dump:path:stackDepth:walkbackDepth:
Message Selector: dump:path:stackDepth:walkbackDepth:

*----> Stack Back Trace <----*
{1A0103C4: cf 1A0103A5, sp 1A0103DC, bp 1A0103C0, ip 5,
BillingSessionManager(SessionManager)>>logError:}
        receiver: a BillingSessionManager
        arg[0]: a GPFault

{1A0103A4: cf 1A010385, sp 1A0103B8, bp 1A0103A0, ip 3,
BillingSessionManager(SessionManager)>>unhandledException:}
        receiver: a BillingSessionManager
        arg[0]: a GPFault

{1A010384: cf 1A010365, sp 1A010398, bp 1A010380, ip 3,
BillingSessionManager(SessionManager)>>onUnhandledError:}
        receiver: a BillingSessionManager
        arg[0]: a GPFault

{1A010364: cf 1A010349, sp 1A010378, bp 1A010364, ip 5,
GPFault(Error)>>defaultAction}
        receiver: a GPFault

{1A010348: cf 1A010315, sp 1A01035C, bp 1A010330, ip 55,
GPFault(Exception)>>_propagateFrom:}
        receiver: a GPFault
        arg[0]: a ExceptionHandler
        stack temp[0]: nil
        stack temp[1]: a ExceptionHandler
        stack temp[2]: nil
        stack temp[3]: a Process('Main' base 1A010000 [ACTIVE] in
SessionManager>>logError: sp=00000000 ip=4 list=00E10010)
        stack temp[4]: nil

{1A010314: cf 1A0102F5, sp 1A010328, bp 1A010310, ip 6,
GPFault(Exception)>>_propagate}
        receiver: a GPFault
        stack temp[0]: nil

{1A0102F4: cf 1A0102D9, sp 1A010308, bp 1A0102F4, ip 11,
GPFault(Exception)>>signal}
        receiver: a GPFault

{1A0102D8: cf 1A0102B5, sp 1A0102EC, bp 1A0102D0, ip 8, GPFault
class(Win32Fault class)>>signal:with:}
        receiver: GPFault
        arg[0]: nil
        arg[1]: a EXCEPTION_RECORD

{1A0102B4: cf 1A010295, sp 1A0102C8, bp 1A0102B0, ip 5, GPFault
class(Exception class)>>signalWith:}
        receiver: GPFault
        arg[0]: a EXCEPTION_RECORD

{1A010294: cf 1A010271, sp 1A0102A8, bp 1A01028C, ip 10,
ProcessorScheduler>>gpFault:}
        receiver: a ProcessorScheduler
        arg[0]: a ByteArray
        stack temp[0]: a EXCEPTION_RECORD

{1A010270: cf 1A010245, sp 1A010284, bp 1A010268, ip 16, [] in
ProcessorScheduler>>vmi:list:no:with:}
        receiver: a ProcessorScheduler

{1A010244: cf 1A010225, sp 1A010258, bp 1A010240, ip 18,
BlockClosure>>ifCurtailed:}
        receiver: [] @ 0 in nil
        arg[0]: [] @ 24 in ProcessorScheduler>>vmi:list:no:with:

{1A010224: cf 1A0101F9, sp 1A010238, bp 1A010214, ip 27,
ProcessorScheduler>>vmi:list:no:with:}
        receiver: a ProcessorScheduler
        arg[0]: 500
        arg[1]: a LinkedList
        arg[2]: 5
        arg[3]: a ByteArray

{1A0101F8: cf 1A0101C1, sp 1A01020C, bp 1A0101DC, ip 0,
UserLibrary(ExternalLibrary)>>invalidCall}
        receiver: a UserLibrary
        stack temp[0]: nil
        stack temp[1]: nil
        stack temp[2]: nil
        stack temp[3]: nil
        stack temp[4]: nil
        stack temp[5]: nil
        stack temp[6]: nil

{1A0101C0: cf 1A0101A1, sp 1A0101D4, bp 1A0101BC, ip 2,
UserLibrary>>dispatchMessage:}
        receiver: a UserLibrary
        arg[0]: a MSG

{1A0101A0: cf 1A010181, sp 1A0101B4, bp 1A01019C, ip 29,
InputState>>pumpMessage:}
        receiver: a InputState
        arg[0]: a MSG

{1A010180: cf 1A010155, sp 1A010194, bp 1A010170, ip 18,
InputState>>loopWhile:}
        receiver: a InputState
        arg[0]: [] @ 9 in InputState>>mainLoop
        stack temp[0]: a MSG
        stack temp[1]: true
        stack temp[2]: nil

{1A010154: cf 1A010139, sp 1A010168, bp 1A010154, ip 15,
InputState>>mainLoop}
        receiver: a InputState

{1A010138: cf 1A01011D, sp 1A01014C, bp 1A010138, ip 14, [] in
InputState>>forkMain}
        receiver: a InputState

{1A01011C: cf 1A010101, sp 1A010130, bp 1A01011C, ip 13,
ExceptionHandler(ExceptionHandlerAbstract)>>markAndTry}
        receiver: a ExceptionHandler

{1A010100: cf 1A0100D9, sp 1A010114, bp 1A0100FC, ip 22, [] in
ExceptionHandler(ExceptionHandlerAbstract)>>try:}
        receiver: a ExceptionHandler

{1A0100D8: cf 1A0100B9, sp 1A0100EC, bp 1A0100D4, ip 18,
BlockClosure>>ifCurtailed:}
        receiver: [] @ 0 in nil
        arg[0]: [] @ 39 in ExceptionHandlerAbstract>>try:

{1A0100B8: cf 1A010095, sp 1A0100CC, bp 1A0100B0, ip 3,
BlockClosure>>ensure:}
        receiver: [] @ 17 in ExceptionHandlerAbstract>>try:
        arg[0]: [] @ 39 in ExceptionHandlerAbstract>>try:
        stack temp[0]: nil

{1A010094: cf 1A01006D, sp 1A0100A8, bp 1A010088, ip 44,
ExceptionHandler(ExceptionHandlerAbstract)>>try:}
        receiver: a ExceptionHandler
        arg[0]: [] @ 10 in InputState>>forkMain
        stack temp[0]: nil
        stack temp[1]: a Process('Main' base 1A010000 [ACTIVE] in
SessionManager>>logError: sp=00000000 ip=4 list=00E10010)
        env temp[0]: nil

{1A01006C: cf 1A010049, sp 1A010080, bp 1A010064, ip 7,
BlockClosure>>on:do:}
        receiver: [] @ 10 in InputState>>forkMain
        arg[0]: ProcessTermination
        arg[1]: [] @ 13 in BlockClosure>>newProcess

{1A010048: cf 00000001, sp 1A01005C, bp 1A010048, ip 17, [] in
BlockClosure>>newProcess}
        receiver: [] @ 10 in InputState>>forkMain

<Bottom of stack>
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