need core dumps from nginx workers

jaksprats · 2016-03-22T04:08:13+00:00

On Thursday, March 24, 2016 at 3:31:03 PM UTC-4, agentzh wrote:Hello! On Sun, Mar 20, 2016 at 10:29 PM, Jon Keys wrote: > === TEST 1: boom > --- h...

need core dumps from nginx workers

jaksprats

In the nginx workers, I am calling into Lua which is then calling into C. The C code is core dumping. How do I either run all of the nginx workers in gdb or set nginx up to core-dump.

I am figuring this has been done by others and am looking for some documentation

thanks

rpaprocki

there is nginx documentation on generating a core dump here:

https://www.nginx.com/resources/wiki/start/topics/tutorials/debugging/

Make sure your nginx binary is configured with --with-debug as this will provide debug symbols. This may be easier than trying to step through multiple workers with gdb (from personal experience, when gdb'ing a worker process always set a breakpoint precisely where you need so you're not mashing "s" a million times ;) and trying to find the right breakpoint may be tricky with lua involved).

On Mar 21, 2016, at 13:08, Russell Sullivan <jaks...@gmail.com> wrote:

In the nginx workers, I am calling into Lua which is then calling into C. The C code is core dumping. How do I either run all of the nginx workers in gdb or set nginx up to core-dump.

I am figuring this has been done by others and am looking for some documentation

thanks

.

jaksprats

that's just what I was looking for :)

thanks Robert

On Monday, March 21, 2016 at 1:17:55 PM UTC-7, rpaprocki wrote:

there is nginx documentation on generating a core dump here:

https://www.nginx.com/resources/wiki/start/topics/tutorials/debugging/

Make sure your nginx binary is configured with --with-debug as this will provide debug symbols. This may be easier than trying to step through multiple workers with gdb (from personal experience, when gdb'ing a worker process always set a breakpoint precisely where you need so you're not mashing "s" a million times ;) and trying to find the right breakpoint may be tricky with lua involved).

On Mar 21, 2016, at 13:08, Russell Sullivan <jaks...@gmail.com> wrote:

In the nginx workers, I am calling into Lua which is then calling into C. The C code is core dumping. How do I either run all of the nginx workers in gdb or set nginx up to core-dump.

I am figuring this has been done by others and am looking for some documentation

thanks

.