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Full Discussion: Memory managment - linux
Top Forums UNIX for Advanced & Expert Users Memory managment - linux Post 302071645 by jim mcnamara on Sunday 23rd of April 2006 08:52:11 AM
Old 04-23-2006
The free output I see looks just fine to me. I see 1456 used in cache not 4538.

Anyway - the kernel takes unused memory and uses it for cache. If there are processes on the box, it's usual to see most of the memory as "used". The kernel releases it as needed.

What bad symptoms are you seeing?
 

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CTRLALTDEL(8)						       System Administration						     CTRLALTDEL(8)

NAME
ctrlaltdel - set the function of the Ctrl-Alt-Del combination SYNOPSIS
ctrlaltdel hard|soft DESCRIPTION
Based on examination of the linux/kernel/sys.c code, it is clear that there are two supported functions that the Ctrl-Alt-Del sequence can perform: a hard reset, which immediately reboots the computer without calling sync(2) and without any other preparation; and a soft reset, which sends the SIGINT (interrupt) signal to the init process (this is always the process with PID 1). If this option is used, the init(8) program must support this feature. Since there are now several init(8) programs in the Linux community, please consult the documentation for the version that you are currently using. ctrlaltdel is usually used in the /etc/rc.local file. FILES
/etc/rc.local SEE ALSO
simpleinit(8), init(8) AUTHOR
Peter Orbaek (poe@daimi.aau.dk) AVAILABILITY
The ctrlaltdel command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux October 1993 CTRLALTDEL(8)
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