From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexander Graf <agraf@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-mm@kvack.org,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>
Subject: Re: Oops in VMA code
Date: Thu, 16 Jun 2011 16:16:51 +1000 [thread overview]
Message-ID: <1308205011.2516.66.camel@pasglop> (raw)
In-Reply-To: <1308204171.2516.65.camel@pasglop>
On Thu, 2011-06-16 at 16:02 +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2011-06-16 at 07:32 +0200, Alexander Graf wrote:
> > On 16.06.2011, at 06:32, Linus Torvalds wrote:
>
> > Thanks a lot for looking at it either way :).
>
> Yeah thanks ;-) Let me see what I can dig out.
>
> First it's a load from what looks like a valid pointer to the linear
> mapping that had one byte corrupted (or more but it looks reasonably
> "clean"). It's not a one bit error, there's at least 2 bad bits (the
> 09):
>
> DAR: c00090026236bbc0
>
> Alex, how much RAM do you have ? If that was just a one byte corruption,
> the above would imply you have something valid between 9 and 10G. From
> the look of other registers, it seems that it could be a genuine pointer
> with just that stay "09" byte that landed onto it.
90 actually...
Anyways, doesn't tell us much more.
Ben.
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prev parent reply other threads:[~2011-06-16 6:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-15 21:59 Alexander Graf
2011-06-16 4:32 ` Linus Torvalds
2011-06-16 5:32 ` Alexander Graf
2011-06-16 5:59 ` Linus Torvalds
2011-06-16 6:20 ` Alexander Graf
2011-06-16 6:54 ` Linus Torvalds
2011-06-16 7:06 ` Alexander Graf
2011-06-16 7:14 ` Benjamin Herrenschmidt
2011-06-16 6:02 ` Benjamin Herrenschmidt
2011-06-16 6:12 ` Alexander Graf
2011-06-16 6:16 ` Benjamin Herrenschmidt [this message]
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