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- From: geveld@thijssen.nl (Ge v.d. Veldt)
- Newsgroups: vmsnet.pdp-11
- Subject: 11/94 Upgrade problems....
- Message-ID: <1992Nov12.151415.21751@thijssen.nl>
- Date: 12 Nov 92 15:14:15 GMT
- Organization: Thijssen BV, Veenendaal, The Netherlands
- Lines: 40
-
-
- Hello,
-
- We experienced 2 problems while upgrading a PDP11/84 to a PDP11/94.
- The PDP 11/84 contains very old hardware such as:
-
- Emulex SC21 diskcontroller with M2322 Fujitsu disk
- RL11 diskcontroller
- Delua ethernet controller
- Emulex TC12 tapecontroller with M890 Cipher drive
- DL11-W asynchronous controller
- DZ11 asynchronous Multiplexer
- DT07 unibusswitch
- ICR11 I/O subsystem
- Fisher and Porter CCM communication controller
-
- Problem 1:
- The RSX11M-plus operating system crashes at random time intervals with the
- following console message:
-
- XXXXXXXXX Exec. parity error stop XXXXXXXXX
-
- After that the CPU halts, no time to generate an errorlog entrie. The same
- system has no problems when the CPU is a PDP11/84.
-
- Problem 2
- The PDP11/94 processor seem to have another power-up sequence compared with
- the PDP11/84. When the DT07 has selected the PDP11/94 CPU for unibus exten-
- sion the frontpanel halt/reset tockle switch will bring the CPU in a not
- accessable state when manipulated. The only way to get out of that state
- (without powering down the system) is to deselect the unibusextension via the
- DT07 frontpanel switches and restart the 11/94 again. This time the normal
- powerup sequence will take place.
-
- WHO HAS ANY SUGGESTIONS FOR THESE PROBLEMS????
-
-
- --
- Ge van der Veldt, Thijssen BV, Veenendaal. The Netherlands.
- Email: geveld@thijssen.nl
-