User guide

138 DC 900-1338I
Protocol Software Toolkit Programmer Guide
OS/Impact initializes the second unused entry in the GST to zero. If OS/Impact
encounters a fatal error during its operation, it stores a panic code at this location and
executes an illegal instruction, which causes a trap to the debugger. The panic codes,
described below, are each composed of an identifier in the high-order word and a mod-
ifier in the low-order word.
Identifier 0x100
Modifier Error code returned from
s_qcreat
Description Creation of the node declaration queue failed (queue ID 1).
Identifier 0x200
Modifier Error code returned from
s_qcreat
Description Creation of the pending request queue failed (queue ID 2).
Identifier 0x300
Modifier Error code returned from
s_accpt
Description An accept message system call on the node declaration queue returned
an invalid queue ID error.
Identifier 0x400
Modifier Queue ID
Description An accept message system call on a read request queue returned an
invalid queue ID error.
Identifier 0x500
Modifier Queue ID
Description An accept message system call on a write request queue returned an
invalid queue ID error.
Identifier 0x600
Modifier Error code returned from
s_susp
Description A suspend call failed.