From: "H. Peter Anvin" <hpa@linux.intel.com>
To: Olof Johansson <olof@lixom.net>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Corrupted low memory in v3.9+
Date: Thu, 17 Oct 2013 12:39:02 -0700 [thread overview]
Message-ID: <52603CD6.6080507@linux.intel.com> (raw)
In-Reply-To: <CAOesGMgV2UsBffPveaE+j1s-mDZ+cQvvQGLGAXjWSAv+a_56Fw@mail.gmail.com>
On 10/17/2013 11:57 AM, Olof Johansson wrote:
>
> And the low memory checker never even ran before, since it had nothing
> to check. Earlier the lower reserved region would be included in the
> e820-reserved area if I read the code correctly, and now it's just
> marked reserved by the memblock code.
>
> I guess it could be argued either way whether this is a regression or
> not; but at the end of the day we now have systems where this warning
> pops when it didn't use to. :(
>
I'm wondering if this is a problem with the low memory checker (the
residual value of which I have to admit to being skeptical of) or
something else.
Could you boot the box with "debug memblock=debug" and earlyprintk
turned on and send the boot output?
-hpa
next prev parent reply other threads:[~2013-10-17 19:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-17 18:57 Corrupted low memory in v3.9+ Olof Johansson
2013-10-17 19:39 ` H. Peter Anvin [this message]
2013-10-17 20:39 ` Olof Johansson
2013-11-07 19:02 ` Olof Johansson
2013-11-07 19:31 ` H. Peter Anvin
2013-11-11 11:35 ` Ingo Molnar
2013-11-11 23:31 ` H. Peter Anvin
2013-11-12 0:04 ` H. Peter Anvin
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