From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Yinghai Lu <Yinghai.Lu@Sun.COM>, "H. Peter Anvin" <hpa@zytor.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: trim ram need to check if mtrr is there v3
Date: Fri, 25 Jan 2008 10:55:31 -0800 [thread overview]
Message-ID: <479A30A3.7050305@goop.org> (raw)
In-Reply-To: <20080125110935.GA20026@elte.hu>
Ingo Molnar wrote:
> * Yinghai Lu <Yinghai.Lu@Sun.COM> wrote:
>
>
>> [PATCH] x86: trim ram need to check if mtrr is there v3
>>
>
>
>>> H. Peter Anvin wrote:
>>> Looks like the code doesn't check that the CPU *has* MTRRs...
>>>
>> so more strict check if mtrr is there really.
>> bail out if mtrr all blank when qemu cpu model is used
>>
>> and check if is AMD as early
>> also remove 4G less check, according to hpa.
>>
>
> thanks, applied. Shouldnt we put in an exception for when there is MTRR
> support, but they dont cover anything. Still emit a warning - but
> booting up real slow is still better than losing all of RAM and crashing
>
The problem is re-occuring for me with current x86.git. Looks like v2
did the trick, and v3 is broken...
J
next prev parent reply other threads:[~2008-01-25 18:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-25 1:44 x86.git: mtrr trimming removes all memory under kvm Jeremy Fitzhardinge
2008-01-25 1:49 ` H. Peter Anvin
2008-01-25 2:21 ` Yinghai Lu
2008-01-25 2:32 ` Yinghai Lu
2008-01-25 10:52 ` Andi Kleen
2008-01-25 3:47 ` [PATCH] x86: trim ram need to check if mtrr is there v2 Yinghai Lu
2008-01-25 5:44 ` H. Peter Anvin
2008-01-25 7:50 ` Yinghai Lu
2008-01-25 7:43 ` Jeremy Fitzhardinge
2008-01-25 8:13 ` Yinghai Lu
2008-01-25 8:39 ` Yinghai Lu
2008-01-25 11:12 ` Ingo Molnar
2008-01-25 15:47 ` H. Peter Anvin
2008-01-25 8:42 ` [PATCH] x86: trim ram need to check if mtrr is there v3 Yinghai Lu
2008-01-25 11:09 ` Ingo Molnar
2008-01-25 18:55 ` Jeremy Fitzhardinge [this message]
2008-01-25 18:59 ` Ingo Molnar
2008-01-25 19:01 ` Jeremy Fitzhardinge
2008-01-25 19:04 ` Ingo Molnar
2008-01-25 19:27 ` Jeremy Fitzhardinge
2008-01-25 19:30 ` Ingo Molnar
2008-01-25 19:32 ` Yinghai Lu
2008-01-25 19:39 ` Jeremy Fitzhardinge
2008-01-25 19:19 ` Yinghai Lu
2008-01-25 19:04 ` Jeremy Fitzhardinge
2008-01-25 18:59 ` Jeremy Fitzhardinge
2008-01-25 19:02 ` Ingo Molnar
2008-01-25 14:21 ` Ingo Molnar
2008-01-25 14:57 ` Andi Kleen
2008-01-25 15:10 ` Ingo Molnar
2008-01-25 15:57 ` H. Peter Anvin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=479A30A3.7050305@goop.org \
--to=jeremy@goop.org \
--cc=Yinghai.Lu@Sun.COM \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.