Re: discriminate single bit error hardware failure from slab corruption.

[Jesper Juhl]

On 2/2/06, Dave Jones <davej@xxxxxxxxxx> wrote:
> In the case where we detect a single bit has been flipped, we spew
> the usual slab corruption message, which users instantly think
> is a kernel bug.  In a lot of cases, single bit errors are
> down to bad memory, or other hardware failure.
>
> This patch adds an extra line to the slab debug messages in those
> cases, in the hope that users will try memtest before they report a bug.
>
> 000: 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> Single bit error detected. Possibly bad RAM. Please run memtest86.
>
May I suggest that the text be
 Single bit error detected. Possibly bad RAM. Please run memtest86
and/or memtest86+.

both programs are good memory testers, but they are different and
sometimes one finds problems not detected by the other.

--
Jesper Juhl <jesper.juhl@xxxxxxxxx>
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