Commit 2c79dcaf authored by Jonathan Corbet's avatar Jonathan Corbet

docs: Get rid of the badRAM guide

The last release of this tool was for 2.6.28; it's hard to see how it has
any relevance to current kernels.
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 7358bb2f
How to deal with bad memory e.g. reported by memtest86+ ?
=========================================================
March 2008
Jan-Simon Moeller, dl9pf@gmx.de
There are three possibilities I know of:
1) Reinsert/swap the memory modules
2) Buy new modules (best!) or try to exchange the memory
if you have spare-parts
3) Use BadRAM or memmap
This Howto is about number 3) .
BadRAM
######
BadRAM is the actively developed and available as kernel-patch
here: http://rick.vanrein.org/linux/badram/
For more details see the BadRAM documentation.
memmap
######
memmap is already in the kernel and usable as kernel-parameter at
boot-time. Its syntax is slightly strange and you may need to
calculate the values by yourself!
Syntax to exclude a memory area (see admin-guide/kernel-parameters.rst for details)::
memmap=<size>$<address>
Example: memtest86+ reported here errors at address 0x18691458, 0x18698424 and
some others. All had 0x1869xxxx in common, so I chose a pattern of
0x18690000,0xffff0000.
With the numbers of the example above::
memmap=64K$0x18690000
or::
memmap=0x10000$0x18690000
......@@ -58,5 +58,4 @@ configure specific aspects of kernel behavior to your liking.
binfmt-misc
mono
java
bad-memory
basic-profiling
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