Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

[sfrench/cifs-2.6.git] / Documentation / x86_64 / boot-options.txt

diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 476c0c22fbb7e43788b543380c0aaf82f9c7dba3..ffe1c062088b9daa52954b2dd6054975f52b9a7b 100644 (file)
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -6,6 +6,16 @@ only the AMD64 specific ones are listed here.
 Machine check
 
    mce=off disable machine check
+   mce=bootlog Enable logging of machine checks left over from booting.
+               Disabled by default because some BIOS leave bogus ones.
+               If your BIOS doesn't do that it's a good idea to enable though
+               to make sure you log even machine check events that result
+               in a reboot.
+   mce=tolerancelevel (number)
+               0: always panic, 1: panic if deadlock possible,
+               2: try to avoid panic, 3: never panic or exit (for testing)
+               default is 1
+               Can be also set using sysfs which is preferable.
 
    nomce (for compatibility with i386): same as mce=off