20.04

crash工具和主机安装的gdb版本不一致导致的异常4.2.1

解决办法

testtest:~/software/crash$testtest:~/software/crash$

cat

-r)-dbgsym如果通过上面的命令安装ubuntu内核调试符号则需要通过下面的方法去安装参考文章安装ubuntu内核调试符号

1.5.1

/etc/apt/sources.list.d/ddebs.list

EOF

修改配置/etc/default/grub.d/kdump-tools.cfg以支持kernel

crash

GRUB_CMDLINE_LINUX_DEFAULT$GRUB_CMDLINE_LINUX_DEFAULT

触发系统异常验证

kdump-tools-dump.servicesystemctl

enable

(/lib/systemd/system/kdump-tools-dump.service;

static;

/system.slice/kdump-tools-dump.service11月

10:19:58

linux-image-5.15.0-74-generic-202311132357.crash

_opt_kingsoft_wps-office_office6_wpscloudsvr.1000.uploaded

202311132231

linux-image-5.15.0-74-generic-202311132045.crash

_opt_kingsoft_wps-office_office6_wpscloudsvr.1000.crash

202311132357

linux-image-5.15.0-74-generic-202311132231.crash

_opt_kingsoft_wps-office_office6_wpscloudsvr.1000.upload

crash工具分析crash

/usr/lib/debug/boot/vmlinux-5.15.0-74-generic

/var/crash/202311132357/dump.202311132357

crash

http://gnu.org/licenses/gpl.html

This

at:http://www.gnu.org/software/gdb/documentation/.For

help,

/usr/lib/debug/boot/vmlinux-5.15.0-74-genericDUMPFILE:

/var/crash/202311132357/dump.202311132357

[PARTIAL

/home/test/software/crash/gdb-10.2/missing:

line

package:http://www.gnu.org/software/texinfo/The

spurious

make:http://www.gnu.org/software/make/

make[5]:

http://gnu.org/licenses/gpl.html

This

x86_64-unknown-linux-gnu...WARNING:

kernel

faulttesttest:~/software/crash$

gdb

http://gnu.org/licenses/gpl.html

This

testtest:~/software/crash$4.2.2

解决办法

https://github.com/crash-utility/crash.gitcd

crashmake

/usr/lib/debug/boot/vmlinux-5.15.0-74-genericcrash

7.2.8

参考1.6节修改/etc/default/grub.d/kdump-tools.cfg文件添加下面的配置以支持

GRUB_CMDLINE_LINUX_DEFAULT$GRUB_CMDLINE_LINUX_DEFAULT

crashkernel384M-:512M然后修改/dev/mem的权限

sudo