[Zope-dev] more on the segfault saga

[Shane Hathaway]

Leonardo Rochael Almeida wrote:
> Well, I have the energy, I just don't know where to start. But it's
> beginning to look like I'll just have to roll up my sleeves and dive in
> C code to hunt this beast down. And to think that I'd chosen Python as
> my official programming language to avoid just that... :-)

I just found out about something that might help.  If you compiled 
against the GNU C library, you can set the environment variable 
MALLOC_CHECK_ to 1 to get malloc usage warnings printed to stderr, or 
set it to 2 to cause an abort() as soon as an error is detected. 
Assuming you're running in production, I'd start with 1 (making sure 
stderr is connected to something), then if any warnings occur but they 
aren't informative enough, switch to 2.

I learned this here:

http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_32.html

Shane