The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

Thursday, September 04, 2008

I hate Heisenbugs

I noticed some odd behavior with mod_blog today. When I make editing changes to entries (mostly spelling corrections) I usually regenerate the static pages (the main page, the various feeds) by hand with the following command:

% ./boston.cgi --config boston.cnf --regen

But today I kept getting the dreaded “Segmentation fault (core dumped)” error. It's always worked before, and the timestamp on the executable was March 13th, so it's not like I made any recent changes to the program.

But, even odder, if I run:

% ./boston.cgi --config ./boston.cnf --regen

it runs without a hitch. Specify the config file without the leading “./” and the program crashes.

And now, fifteen minutes later, I can't reproduce the issue.


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