From: "Martin J. Bligh" <mbligh@aracnet.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Dave Hansen <haveblue@us.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: kexec reboot code buffer
Date: Wed, 29 Jan 2003 08:17:44 -0800 [thread overview]
Message-ID: <1947260000.1043857063@titus> (raw)
In-Reply-To: <m165s855fr.fsf@frodo.biederman.org>
>> > I am fine with memory that is not physically contiguous. The memory
>> > I really want the kernel is currently sitting on.....
>>
>> Oh, in that case you should have no problem getting it from ZONE_NORMAL,
>> especially if you can wake up kswapd and wait for a few seconds.
>
> Nope, kswapd will not free the kernels text segment. So in practice
> I can use anything below 4GB.
Oh, I'm well aware that the kernel won't get swapped out ;-)
I was referring to the getting memory that's "not physically contiguous"
by waking up kswapd ;-)
> There is even a distribution built to be run completely out of a ramdisk.
> http://warewulf-cluster.org/
Terrifying ;-)
M.
next prev parent reply other threads:[~2003-01-29 16:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3E31AC58.2020802@us.ibm.com>
2003-01-25 14:16 ` kexec reboot code buffer Eric W. Biederman
2003-01-27 21:55 ` Dave Hansen
2003-01-27 22:03 ` Martin J. Bligh
2003-01-28 0:10 ` William Lee Irwin III
2003-01-28 7:24 ` Eric W. Biederman
2003-01-28 16:15 ` Martin J. Bligh
2003-01-29 15:41 ` Eric W. Biederman
2003-01-29 16:17 ` Martin J. Bligh [this message]
2003-01-28 7:04 ` Eric W. Biederman
2003-01-28 7:18 ` William Lee Irwin III
2003-01-28 7:28 ` Eric W. Biederman
2003-01-28 7:31 ` William Lee Irwin III
2003-01-28 15:21 ` Eric W. Biederman
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