Re: ibcs2 on netbsd 4.0.1 vs. 5.1

[Patrick Bennett <pebcomputing+netbsdusers%gmail.com@localhost>]

I have the kernel dump and can send it off-list.  If there's just a
small snippet that's of interest, let me know what to look for and
I'll copy it to the list.

     -Patrick

On Mon, Jan 17, 2011 at 5:54 PM, Christos Zoulas 
<christos%astron.com@localhost> wrote:
> In article 
> <AANLkTim+04RFFjXKW3mw=2zWQFNfPyzuZUpMPmVVCd7B%mail.gmail.com@localhost>,
> Patrick Bennett  <pebcomputing+netbsdusers%gmail.com@localhost> wrote:
>>I am trying to get a legacy application written for SCO OpenServer
>>5.0.x to run on NetBSD 5.1 under ibcs2 emulation and am having some
>>trouble.
>>
>>First, I should point out that I'm doing this using guest virtual
>>machines under linux kvm on Ubuntu 10.04.
>>
>>With NetBSD 4.0.1, I had success getting my legacy app to run right
>>out of the box - my app ran with virtually no modification to the
>>default installation.  I did not need to install shared libraries,
>>re-compile the kernel, nada.  The only problems I did encounter with
>>the application were related to the app's installation paths and
>>permissions and once I got them correct the app ran well.
>>
>>On later versions of NetBSD, however, I have not had any success after
>>many hours of reading docs, googling, tweaking things, etc..  The
>>application simply sigfaults on execution seemingly no matter what I
>>try.  On 5.1, amongst other things, I have tried recompiling the
>>kernel with the COMPAT_IBCS2 option enabled and moving the app's
>>directory tree under /emul/ibcs2 (this was not necessary on 4.0.1).
>>Some months ago I tried all this on 5.0.1 and never got it to work
>>either, though I've forgotten the details now.
>>
>>I have /not/ tried installing the shared libraries for two reasons: 1)
>>they were not needed under 4.0.1, and 2) the script
>>/usr/share/examples/emul/ibcs2/ibcs2-setup, which apparently copies
>>the shared libraries off of a SCO installation cd, does not exist on
>>the system as promised by "man compat_ibcs2" (as a matter of fact,
>>there is not even an "ibcs2" directory on this path!); this script
>>also does not exist on 4.0.1.
>>
>>Any one have any tips to get ibcs2 working again for my app as it does
>>under 4.0.1, or on how to further debug?
>
> Csn you ktrace it and see what it prints?
>
> christos
>
>