Instruction manual

PRODUCT PERFORMANCE Issue 3 - Vol 2 USER GROUP NEWS
CRASH WHEN IU = NONEXISTENT PORT
PRODUCT
8560 or 8561 and ports 4,5,6 and 7
CONFIGURATION
4-port 8560 or standard 8561 and TNIX version 1.4
PROBLE:M
If the IU shell variable is set to a value corresponding to a. port which has no lOP board (4-7), the system will
crash (bus error) when an 8540/50 command is executed. Removing all read, write, and execute permission (from
hsi4 thru hsi7) in the / dev directory is one solution to the problem, but this results in an error in command execu-
tion
rather than a system crash.
LIBRARY CALLS WITHIN LIBRARY CALLS
PRODUCT
La.s linker calling 2nd library module w /many symbols in Istmod
CONFIGURATION
All 8550s and 85608 with linker versions through 2.08 and VAX Unix linker version 2.01-00
PROBLE~1
If one library in a module with many symbols calls a 2nd module in the same library, the 2nd module may not be
linked.
COM~1ENTS
\Vorkaround--extract the module that calls the second module and link before the library. The extracted library
members
may be placed in a sepa.rate library.
STRING I/O LIMITATION IN 68000 PASCAL
PRODUCT
68000 (8560) Pascal compiler and transfer of 256 bytes
CONFIGURATION
8560 TNIX V2.0 and 68000 Pascal compiler V01.01-14
PROBLEM
68000 pascal compiler routine will fail with a fatal I/0 error #238 at runtime when asked to transfer over 256
bytes of data at one time.
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TEKTRONIX December 1983