x86/mce: Update bootlog description to reflect behavior on AMD

The bootlog option is only disabled by default on AMD Fam10h and older
systems.

Update bootlog description to say this. Change the family value to hex
to avoid confusion.

Signed-off-by: Yazen Ghannam <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: linux-edac <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Yazen Ghannam 2017-06-13 18:28:35 +02:00 • committed by Ingo Molnar
commit 6057077f6e
2 changed files with 5 additions and 3 deletions

View file

@ -36,7 +36,8 @@ Machine check
to broadcast MCEs.
mce=bootlog
Enable logging of machine checks left over from booting.
Disabled by default on AMD because some BIOS leave bogus ones.
Disabled by default on AMD Fam10h and older 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. On Intel systems it is enabled by default.