[Simh] Recent build crashes on OSX

[Michael Huff]

Hi, Mark,

I just opened an issue (https://github.com/simh/simh/issues/277) and 
I'll post a comment to it with the information you requested.

I made this VM following a tutorial on gunkies, but the folder has a lot 
of junk, so while I wait for gcc to compile I'll make, test and then 
upload a pristine copy of the VM somewhere, and post that as a comment 
to the issue I opened.

-Michael

On 2/17/16 11:32 AM, Mark Pizzolato wrote:
> Hi Michael,
>
> On Wednesday, February 17, 2016 at 11:48 AM, Michael Huff wrote:
>> I grabbed simh_master.zip from github yesterday and compiled it on OSX and
>> in a virtualbox instance of Linux Mint 17. OSX is the native OS, Linux is in a
>> VM.
>>
>> I have a 43BSD machine accessible to both on a shared drive. It will boot
>> normally when I run vax780 inside of the Linux VM, but  when I run the
>> vax780 binary I compiled in OSX it crashes.
>>
>> I'm assuming I should file a bug report on the OSX build? Should I post that
>> over at github and what do I need to include in the report?
>>
>> I realize this is a very noob-ish mail, but I don't want to submit something
>> long and involved and find it's entirely irrelevant, so I'm asking here first.
>>
>> if it helps, this is what the crash looks like:
>> ---
>> Michaels-iMac:43BSD michael$ uname -a
>> Darwin Michaels-iMac.local 15.3.0 Darwin Kernel Version 15.3.0: Thu Dec
>> 10 18:40:58 PST 2015; root:xnu-3248.30.4~1/RELEASE_X86_64 x86_64
>> Michaels-iMac:43BSD michael$ !va
>> vax780 boot.ini.default
>>
>> VAX 11/780 simulator V4.0-0 Beta        git commit id: aadd66c7
>> loading ra(0,0)boot
>> Boot
>> : ra(0,0)vmunix
>> 279844+80872+100324 start 0x12f8
>>
>> Process PTE in P0 or P1 space, PC: 8002B82F (XORW3
>> @-7035(R8), at D0FF6436, at -70B0(R1))
>> sim> q
>> Goodbye
>> ---
>> When I run that under my linux VM, I get:
>> ---
>> michael at michael-VirtualBox ~/simh/43BSD $ uname -a Linux michael-
>> VirtualBox 3.13.0-24-generic #47-Ubuntu SMP Fri May 2
>> 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux michael at michael-
>> VirtualBox ~/simh/43BSD $ vax780 boot.ini.default
>>
>> VAX 11/780 simulator V4.0-0 Beta        git commit id: aadd66c7
>> loading ra(0,0)boot
>> Boot
>> : ra(0,0)vmunix
>> 279844+80872+100324 start 0x12f8
>> 4.3 BSD UNIX #1: Fri Jun  6 19:55:29 PDT 1986
>>       karels at monet.Berkeley.EDU:/usr/src/sys/GENERIC
>> real mem  = 8388608
>> SYSPTSIZE limits number of buffers to 140 avail mem = 7187456 using 140
>> buffers containing 524288 bytes of memory
>> mcr0 at tr1
>> mcr1 at tr2
> Based on other discussion which has already taken place about this,
> I would appreciate it if you could create an issue at https://github.com/simh/simh/issues
> In your description please provide the above AND:
> 1) The contents configuration file you are running the simulator with
> 2) The output of:
> 	sim> SHOW VERSION
>       on both your failing OSX environment AND the succeeding Linux Mint environment
> 3) Possibly a pointer to the disk image you're booting (compressed and visible in a Google
> Drive or other publically accessible file exchange environment (web site, Sky Drive, DropBox, etc...).
> 4) As complete a description of your OSX system and compiler version as you
> can easily put together.
>
> If I can reproduce the problem it certainly can be fixed.  Paul's observations about
> "does break strict-aliasing rules" might be relevant.
>
> Thanks.
>
> - Mark