simh help?

From: Kevin Handy <kth_at_srv.net>
Date: Wed May 28 16:24:00 2003

Brian Hechinger wrote:

>On Wed, May 28, 2003 at 02:49:27PM -0600, Kevin Handy wrote:
>
>
>>Does simh crash, or does it just do wacky things? More details would
>>be useful.
>>
>>
>
>it stops responding. if i don't clear out my nvram file, it fails on memory
>check the next time i boot the cpu.
>
Odd. If you can still Control/E to the prompt, try 'N' for several
instructions
to see if it is stuck in VMS's idle loop (cycles through a very small number
of instructions). If it is, it might not be seeing any interrupts.

If Control/E doesn't work, then things are really hosed.

>
>i need to delete the nvram file and restart, then it works. for a while
>anyway, and then eventually stops responding.
>
>
I haven't been using a NVR file, and it seems to work ok.
Try commenting it out in your configuration file, and see what happens.

>>It's probably mostly done with some version of GCC, but I believe that
>>it is often compiled using Microsoft Visual C.
>>
>>
>
>it's been added to my LONG list of things to clean up for building with
>non-gcc. MIPSpro being very anal complains a LOT about the source code.
>
Sometimes that's a good thing. It may actually be pointing right at
the problem, but hiding it under a mass of additional messages.

>i'd love to, but i'm not even sure how to. ;(
>
I've done it using the 'N' command (next instruction), trying to trace out
bad instructions, and using gdb. It's very tedius when you are looking for
one instruction out of a million executed that are wrong.
Received on Wed May 28 2003 - 16:24:00 BST