[IPython-user] "Bus error" on Mac OS X
Justin C. Walker
justin at mac.com
Wed Jun 29 11:32:51 CDT 2005
On Jun 29, 2005, at 09:27 , Fernando Perez wrote:
> Hans Fangohr wrote:
>> I have installed Python 2.3.5 using fink, and then installed
>> ipython-0.6.15 using that. When executing ipython (from /sw/bin/
>> it seems to start okay. However, entering any command such as "1
>> +1" or
>> "import math" results in a short delay and then a "Bus error"
>> Any ideas what this could be and how to debug this further?
> wow, not the foggiest. Can anyone enlighten me as to what a 'bus
> error' is? I've never seen that message on a linux box.
Generally, "Bus Error" is a catch-all term for "some sort of memory
access problem". Depending on the platform you are running on, it
can mean, e.g., an access (usually by pointer) to non-existent
memory; overwriting stack or other memory; cosmic rays; ...
It us usually, but not always, associated with a bug in the program;
it can also show up a problem with the hardware (e.g., bad memory),
but that is less likely. If you see lots of these, across a bunch of
different programs, then hardware is suspect. Otherwise, blame the
Justin C. Walker, Curmudgeon at Large
Institute for General Semantics
My wife 'n kids 'n dog are gone,
I can't get Jesus on the phone,
But Ol' Milwaukee's Best is my best friend.
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