kaja

• Nov 26th, 2007

 

Whenever the server gets hanged or crashed a core file is generated. i.e vm.core file, with that file we can analyze why the server was crashed.

clyton.a

 Profile Answers by clyton.a 

• Jun 28th, 2008

 

Whenever an Operating systems faces a fatal error it creates dump file by writing some of the memory contents of the kernel in the dump device (Swap device). After the system is rebooted savecore command (if it is enabled) retreives data from the dumpdevice and writes the data in /var FS. They are

#/var/crash/hostname/vmcore.x --> Kernel Contents (used by System Engineer to analyze the cause of Operating system crash)

#/var/crash/hostname/unix.x

anthonypra

 Profile Answers by anthonypra 

• Sep 2nd, 2009

 

First this is not vm.core it is vmcore.X

When an operating system crashes, the savecore command is automatically
executed during a boot. The savecore command retrieves the crash dump from the
dump device and then writes the crash dump to a pair of files in your file
system: The savecore command places kernel core information in the /var/crash/nodename/vmcore.X
file, where nodename is the name returned by uname -n, and X is an integer
identifying the dump.