On Wed, Oct 1, 2014 at 12:30 PM, bruce <badouglas(a)gmail.com> wrote:
running an app in both fed/centos test machines and getting a seg fault.
I know this is a bit off topic, but it does related to segfault
crashes, and how to get/setup the data to analyze track down the
the system has /var/log/messages with
Sep 30 11:40:57 dell2 kernel: courseSectionDa: segfault at 868
ip 00007f80e8e1e410 sp 00007fffe404d0c8 error 4 in
isn't this saying the crash is coming from the libgearman.so.8.0.0 as
opposed to the parent php app which uses the gearman lib??
and assuming that this is the case, and i installed the gearman so
with yum (without source) is there a way I can setup the system to
capture the crash data to do an analysis of the crash??
the parent app runs multiple (1000s) of times, and somewhere the crash
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you may find tools like strace to see what, in terms of system calls,
preceded the crash.
note the -f option to follow new sub processes.
pstree can be fun, ...
watch "pstree -p 1638"
where '1638' is a processes spewing subprocesses of interest.
sudo yum install strace watch pstree