Hello!

On Tue, Aug 30, 2016 at 06:33:36PM +0800, 洪志道 wrote:


[...]

> I found a coredump file generated on production.

[...]

> nginx.conf
>
> load_module modules/....;
> load_module modules/ngx_http_abc_module_3.so; # This module is in the
> last postion, the other modules seems right.
>
> And there is tiny detail. I generate so file named
> 'ngx_http_abc_module.so', then I copy as ngx_http_abc_module_3.so

Note that when writing module *.so files care should be taken to
not modify contents of files currently loaded. E.g., "make
install" in nginx will first move an old file (if any) to
*.so.old, and then copy the new file.

If you happened to modify an *.so file currently loaded,
segmentation fault is expected. Just using "cp" without moving an
old file first is known to cause segmentation faults as it
modifies contents of existing *.so files.

--
Maxim Dounin
http://nginx.org/

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