Exception Codes

This topic describes the following types of exceptions:

wRTOS exceptions
Intel exceptions

wRTOS Exception Codes

wRTOS displays pop-up notifications for certain occurrences in the Subsystem, such as licensing errors, hardware exceptions, and system exceptions. These notifications appear as balloon pop-ups and are also logged to the Windows Event Viewer. Notification codes and descriptions are listed in the tables below.

RTSS Licensing Errors
RTSS Hardware Exceptions
Windows Hardware Exceptions
RTSS System Exceptions
RTSS Monitoring Exceptions

RTSS Licensing Errors

Code	Notification Text
RTSS_1_0001	The wRTOS Evaluation period has expired. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481 to obtain a full-use version.
RTSS_1_0002	No wRTOS license is available. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0003	The TCP/IP feature Evaluation period has expired. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481 to obtain a full-use version.
RTSS_1_0004	The TCP/IP feature is not licensed. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0005	A wRTOS binary was not built with a licensed SDK. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0006	A wRTOS binary or one of the RTDLLs it loads (implicitly or explicitly) was not built with a licensed SDK. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0007	A wRTOS binary is not supported to run on the currently installed wRTOS runtime. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0008	A wRTOS binary or one of the RTDLLs it loads (implicitly or explicitly) is not supported to run on the currently installed wRTOS runtime. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0009	A wRTOS binary or one of the RTDLLs it loads (explicitly or implicitly) is missing important internal license information. Please contact IntervalZero, Inc. at www.intervalzero.com or +1 781-996-4481.
RTSS_1_0010	A wRTOS binary or one of the RTDLLs it loads (explicitly or implicitly) was built using a non-wRTOS SDK and cannot be executed by wRTOS. Recompiling the binary using the wRTOS SDK will enable wRTOS to execute it.

RTSS Hardware Exceptions

Code	Notification Text
RTSS_2_0000	Divide By Zero
RTSS_2_0001	Debug Exception (Single-step)
RTSS_2_0002	Non-Maskable Interrupt
RTSS_2_0003	Breakpoint Exception
RTSS_2_0004	Overflow Exception
RTSS_2_0005	Bound Range Exceeded
RTSS_2_0006	Invalid Op Code
RTSS_2_0007	NPX Not Available
RTSS_2_0008	Double Fault
RTSS_2_0009	Coprocessor Segment Overrun
RTSS_2_000A	Invalid TSS
RTSS_2_000B	Segment Not Present
RTSS_2_000C	Stack Fault
RTSS_2_000D	General Protection Fault
RTSS_2_000E	Memory Access Fault
RTSS_2_000F	Reserved Trap
RTSS_2_0010	FPU Floating-Point Error
RTSS_2_0011	Alignment Check Exception
RTSS_2_0012	Machine-Check Exception
RTSS_2_0013	SIMD Floating-Point Exception
RTSS_2_0014	Noncontinuable Exception
RTSS_2_0015	Invalid Unwind
RTSS_2_0016	Bad Stack
RTSS_2_0017	Invalid Handler
RTSS_2_0018	Unknown Fault

Win32 Hardware Exceptions

Code	Notification Text
RTSS_3_0002	Data Type Misalignment
RTSS_3_0003	Break Point
RTSS_3_0004	Single Step
RTSS_3_0005	Access Violation
RTSS_3_001D	Illegal Instruction
RTSS_3_008D	Float Denormalized Operand
RTSS_3_008E	Float Divided by Zero
RTSS_3_008F	Float Inexact Result
RTSS_3_0090	Float Invalid Operation
RTSS_3_0091	Float Overflow
RTSS_3_0093	Float Underflow
RTSS_3_0094	Integer Divided by Zero
RTSS_3_0194	Possible Deadlock Condition

RTSS System Exceptions

Code	Notification Text
RTSS_4_0000	Internal System Error
RTSS_4_0001	Windows Starvation Timeout
RTSS_4_0002	System entered x2APIC mode. This version of wRTOS does not support x2APIC mode.
RTSS_4_0004	Failed to pass wRTOS configuration check

RTSS Monitoring Exceptions

Code	Notification Text
RTSS_5_0000	wRTOS monitoring data has been lost due to insufficient internal resources. Please monitor fewer events and/or increase the amount of nonpaged memory dedicated to monitoring in wRTOS Settings.
RTSS_5_0001	Internal monitoring error 1.
RTSS_5_0002	Internal monitoring error 2.
RTSS_5_0003	Monitor Transport Buffer Initialization failed.
RTSS_5_0004	Recent Event List initialization failed.
RTSS_5_0005	Failed to read maximum on disk size of one event session from registry.
RTSS_5_0006	Failed to read event log file folder name from registry.
RTSS_5_0007	Failed to read set of enabled events from registry.
RTSS_5_0008	The Monitoring framework thread failed to start.

Intel Exception Codes

Following Windows behavior, RTSS maps the Intel (x86) exception code to the Windows one, and then invokes Structured Exception Handling. wRTOS will alert the user via a popup message, make an entry to the event log, and freeze or terminate the thread and associated process.

x64 Exception	Windows Mapping
EXCEPTION_DIVIDED_BY_ZERO	EXCEPTION_INT_DIVIDE_BY_ZERO EXCEPTION_FLT_DIVIDE_BY_ZERO
EXCEPTION_NPX_OVERRUN	EXCEPTION_FLT_INVALID_OPERATION
EXCEPTION_NPX_ERROR	EXCEPTION_FLT_DENORMAL_OPERAND EXCEPTION_FLT_DIVIDE_BY_ZERO EXCEPTION_FLT_OVERFLOW EXCEPTION_FLT_UNDERFLOW EXCEPTION_FLT_INEXACT_RESULT EXCEPTION_FLT_INVALID_OPERATION
EXCEPTION_INVALID_OPCODE	EXCEPTION_ILLEGAL_INSTRUCTION
EXCEPTION_GP_FAULT EXCEPTION_PAGE_FAULT EXCEPTION_BOUND_CHECK EXCEPTION_SEGMENT_NOT_PRESENT	EXCEPTION_ACCESS_VIOLATION
EXCEPTION_DEBUG	EXCEPTION_BREAKPOINT
EXCEPTION_ALIGNMENT_CHECK	EXCEPTION_DATATYPE_MISALIGNMENT