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тАО07-13-2005 02:45 AM
тАО07-13-2005 02:45 AM
Re: system crash
You've reminded me of a similar situation. The VAX (don't remember what kind, but it wasn't a VAXstation) would just sometimes crash for no reason.
Finally realized that they had a PC as the console, and were using the console to run a data entry application. The Terminal Emulator had F5 mapped to send
I don't remember if there was also a console command that set the break condition, but I moved that operators PC off of the console and put in a dedicated console with break disabled. It never crashed like that again.
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тАО07-13-2005 04:27 AM
тАО07-13-2005 04:27 AM
Re: system crash
I'm pretty sure that the system will just HALT and display the console prompt >>>
but it will not crash with a HALT restart bugcheck. The HALT restart crash should only happen, if the console detects, that the operating system has issued a HALT instruction in kernel mode (thus halting the CPU) and the HALT console parameter is set to RESTART. The console would then try to restart OpenVMS via the restart entry point.
Volker.
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тАО07-13-2005 05:02 AM
тАО07-13-2005 05:02 AM
Re: system crash
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тАО07-14-2005 06:47 AM
тАО07-14-2005 06:47 AM
Re: system crash
Volker,
I will get back after trying your suggestions.
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тАО07-18-2005 01:12 AM
тАО07-18-2005 01:12 AM
Re: system crash
Can you perhaps give us a brief overview of the method you are using to trigger the change in system status? As I recall, there is a possible situation in which you could run afoul of one of the Goedel theorems on computability that would prevent this from being a truly reliable process, depending on exactly how you approach it.
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тАО07-18-2005 01:31 AM
тАО07-18-2005 01:31 AM
Re: system crash
http://forums2.itrc.hp.com/service/forums/questionanswer.do?threadId=929654
It may not be possible to obtain the HALT PC from the dump, but ONLY from the halt message on the console.
Volker.
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тАО07-19-2005 06:22 PM
тАО07-19-2005 06:22 PM
Re: system crash
For a valid restart crash (see [SYS]POWERFAIL routine EXE$RESTART_ATT), the following input values are expected:
AP - Halt reason code (a value between 3 and 31.)
R10 - HALT PC
R11 - HALT PSL
These values do not match in this crash, which makes a hardware problem even more likely.
Volker.
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