Ubuntu System crash Processing scheme

If your system crashes every random time, do a memory test before filling out a bug report or support request. If your system crashes when a particular action occurs, and each time it is similar (reproducible), try the following steps:
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If possible, try to reproduce the system crash in the text console (CONTROL+ALT+F1)

When a system crash occurs, press the ALT+SYSRQ+1 key combination and then press ALT+SYSRQ+T. If you are using a text console, you should see a set of tracking information printed on the screen. If the system can survive, the information is also recorded in the/var/log/kern.log file and can be seen in the output of the DMESG command. This information gives you a breakdown of where the crash began, and should include this information when submitting any problem reports.

Remote resolution

Many system crashes that involve X Window, you can't copy the hint to the screen

Information. The best way to do this is to use a remote login on another computer.

On this computer

Install Openssh-server (if you have a computer that can connect to the Internet, make sure your account password is correct).

On another computer

Install install Openssh-client. If this is a Windows system, please install putty, which is a free SSH client. If the system is OS, it takes the Shh client.

Get this computer

Get the IP address through the ifconfig command. If both computers are Ubuntu 7.04 or OS, you can replace the IP address with the computer name (for example, mycomputer.local).

Connect to this computer

, such as SSH myuser@192.168.1.3.

Executing in a SHH session

sudo cat/proc/kmsg.

Start a shh session, like

Tail/var/log/syslog or other orders.

Copy the hint information.

Monitor any error messages in SSH to submit error reports.