Sure - let me run off and do this.
In the meantime, I tried rebuilding ganglia with 3.5.0 and
3.4.0. For both of these cases, I get the same segfault. This
makes me think I'm doing something wrong but I can seem
to find it :)
I'll let you know what I find out as I go back to ganglia-3.6.0.
Thanks!
Jeff
Oh I didn't think about going that lowlevel :) Could you run ldd on
gmond also?
Could you also run 'tree' command on /etc/ganglia ? It's interesting
that you have two times msg: "loaded module: python_module" while
starting gmond. Rechecking this with strace log shows that it looks like
double loading of those modules? http://pastebin.com/BjdCGgbj
On Sun, Feb 09, 2014 at 03:28:10PM -0500, Jeff Layton wrote:
On 02/09/2014 02:48 PM, Jeff Layton wrote:
On 02/09/2014 02:28 PM, Maciej Lasyk wrote:
You could also try to catch on which particular check this segfault
happens..?
Not sure how to check this. When I run gmond interactively, it
segfaults just after it says,
[root@home4 yum.repos.d]# /usr/local/sbin/gmond -d 5 -c
/etc/ganglia/gmond.conf
loaded module: core_metrics
loaded module: python_module
loaded module: cpu_module
loaded module: disk_module
loaded module: load_module
loaded module: mem_module
loaded module: net_module
loaded module: proc_module
loaded module: sys_module
loaded module: python_module
Segmentation fault (core dumped)
I'm not sure where to begin checking. I'm a very old-fashioned
debugger - I tend to use a great deal of print statements to
track down where things are happening. I can start doing this
in gmond.
I tried putting fprintf's all over the gmond.c (yep - I'm that
poor of a debugger). I'm not sure but if looks like it segfaults
in the function setup_metric_callbacks on the statement,
if (modp->init && modp->init(global_context)) {
or on the function,
apr_pool_cleanup_register(global_context, modp,
modular_metric_cleanup,
apr_pool_cleanup_null);
I'm not too sure.
I apologize if I'm wasting your time with my poor debugging
skills.
Thanks!
Jeff
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