centos环境解析ubuntu vmcore小技巧

1. ubuntu kernel debuginfo包xxx.ddeb先转为deb包 例如： mv linux-image-unsigned-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.ddeb linux-image-unsigned-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.deb

mv linux-image-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.ddeb linux-image-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.deb

2. 将deb包转为rpm包： alien -r linux-image-unsigned-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.deb alien -r linux-image-4.15.0-118-generic-dbgsym_4.15.0-118.119_amd64.deb

3.解压或者直接安装转换后的rpm包：

rpm -ivh linux-image-4.15.0-118-generic-dbgsym-4.15.0-119.119.x86_64.rpm linux-image-unsigned-4.15.0-118-generic-dbgsym-4.15.0-119.119.x86_64.rpm

4.crash解压dump文件

crash /usr/lib/debug/boot/vmlinux-4.15.0-118-generic ../../crash/mobile3/202109282304/dump.202109282304