如何使用abrt-cli

abrt是个什么东西:
The Automatic Bug Reporting Tool, commonly abbreviated as ABRT, is a set of tools that is designed to help users detect and report application crashes.

installing the ABRT packages overwrites the /proc/sys/kernel/core_pattern 
例如我本机rhel 7上就是这样

cat /proc/sys/kernel/core_pattern
|/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e

其含义为：
abrt-ccpp service overwrites the core_pattern file to contain the following command
pipe the core dump to the abrt-hook-ccpp program, which stores it in ABRT's dump location and notifies the abrtd daemon of the new crash

所以其实这个ABRT 包含了很多语言的插件，下表来自于Rhel 7的官方文档。

Langauge/Project	Package
C or C++	abrt-addon-ccpp
Python	abrt-addon-python
Ruby	rubygem-abrt
Java	abrt-java-connector
X.Org	abrt-addon-xorg
Linux (kernel oops)	abrt-addon-kerneloops
Linux (kernel panic)	abrt-addon-vmcore
Linux (persistent storage)	abrt-addon-pstoreoops

那么如何来安装abrt呢？

yum install abrt-cli        #Installing ABRT for the Command Line
yum install abrt-desktop    #Installing the ABRT GUI
yum install libreport-plugin-mailx        #Installing Supplementary ABRT Tools

也可以为别的语言安装package

yum install abrt-java-connector

启动服务

systemctl is-active abrtd.service
systemctl start abrtd

如果你看到了如下的notification.

ABRT has detected 1 problem(s). For more info run: abrt-cli list --since xxxxxxxx

就可以使用abrt-cli 来query 这些问题. 如下命令很简单，不再解释。更多的内容可以man 一下，abrt-cli 的manual 很短。

abrt-cli list
abrt-cli info [-d] directory_or_id
abrt-cli report directory_or_id
abrt-cli rm directory_or_id

END:
中间看文档的时候发现一个问题：
kill -s SEGV $PID
kill 传递了SEGV这个信号，kill -l 可以找到这个信号，11) SIGSEGV，意思是process try to access illegal memory.

参考资料：
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sect-abrt-handling-problems.html
（官方文档）