Gentoo Archives: gentoo-user

From: Dan Farrell <dan@×××××××××.cx>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] MCE in kernel
Date: Mon, 03 Sep 2007 22:41:42
Message-Id: 20070903172926.61aa44ed@pascal.spore.ath.cx
In Reply to: Re: [gentoo-user] MCE in kernel by "Alan E. Davis"
1 On Tue, 4 Sep 2007 06:51:38 +1000
2 "Alan E. Davis" <lngndvs@×××××.com> wrote:
3
4 > I think your solution is the better one, though.
5 >
6 > I did follow the instructions of the boot messages and installed an
7 > mce log translation utility, but I didn't make sense of what to do
8 > with it.
9
10 The thing is, you are only masking symptoms. There may be something
11 wrong, and perhaps you could save a lot of work later by fixing a
12 problem before it turns catastrophic.
13
14 from http://en.wikipedia.org/wiki/Machine_Check_Exception
15
16 A Machine Check Exception, also called MCE, is a computer hardware
17 error which occurs when a computer's central processing unit detects an
18 unrecoverable hardware problem.
19
20 Normal causes for MCE errors are overheating and/or incorrect hardware
21 installation. Overheating can cause electrons to become more animated
22 and thus escape from the silicon tracks, resulting in corrupted data.
23 Some specific manually induced causes could be:
24
25 Overclocking (naturally increases heat output)
26
27 Poorly fitted heatsink/computer fans (the same problem can happen with
28 excessive dust in the CPU fan)
29
30 Computer software can also cause errors in this way (normally by
31 corrupting data they are reading or writing). For example:
32
33 -Software performing read or write operations to non-existent memory
34 regions which leads to confusion for the processor and/or the system
35 bus.
36
37 3rd party programs
38
39 mcelog
40 mcelog is a Linux program to decode MCE's on x86-64 processors
41
42 --
43 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] MCE in kernel "Alan E. Davis" <lngndvs@×××××.com>