edwin scheme/emacs SEGV's in X; not on console

[Ben Kaduk]

On Sun, Oct 12, 2008 at 5:06 PM, Boris Samorodov <bsam at ipt.ru> wrote:
> "Ben Kaduk" <minimarmot at gmail.com> writes:
>
>> Hi all,
>>
>> I'm taking a classical mechanics class that uses an scmutils package
>> on top of mit-scheme.
>> Attempting to build this software on FreeBSD natively has been ...
>> painful, so I'm looking
>> at using the linuxulator to run an already-compiled version.
>>
>> I'm running FreeBSD-CURRENT from the September snapshot, and I installed
>> linux_base-f8 and linux-xorg-libs.
>> I then downloaded this tarball:
>> http://groups.csail.mit.edu/mac/users/gjs/6946/scmutils-tarballs/scmutils-20080929-ix86-ubuntu-gutsy.tar.gz
>> and unpacked it in /usr/local .
>> I needed to brandelf -t Linux
>> /usr/local/scmutils/mit-scheme/bin/mit-scheme-native
>> and change /usr/local/bin/mechanics to have #!/usr/compat/linux/bin/bash
>> instead of #!/bin/bash, but then the program runs just fine in console mode.
>> (edwin is an emacs18, and it has a module on top of it to run a scheme
>> interpreter
>> using their mechanics library.)
>>
>> However, when I run the program in X11, whenever I try to evaluate a command
>> (C-x, even), I get the message:
>> Internal error: Hardware trap SIGSEGV.
>> I can try to ktrace the call to scheme, but kdump segfaults on the ktrace.out.
>>
>> Is there anything obvious that I should look at?
>
> You should use devel/linux_kdump instead of the native one.
>

Ah, thanks.

The (8M) linux_kdump output is here:
http://stuff.mit.edu/afs/sipb.mit.edu/user/kaduk/freebsd/prolix/mechanics.dump.txt
though I am not getting much useful out of it ...

-Ben Kaduk