From: Andrew Morton <akpm@osdl.org>
To: Valdis.Kletnieks@vt.edu
Cc: linux-kernel@vger.kernel.org, fastboot@lists.osdl.org
Subject: Re: Stupid kexec/kdump question...
Date: Tue, 26 Sep 2006 22:10:29 -0700 [thread overview]
Message-ID: <20060926221029.d9e87650.akpm@osdl.org> (raw)
In-Reply-To: <200609261525.k8QFP6j4022389@turing-police.cc.vt.edu>
On Tue, 26 Sep 2006 11:25:06 -0400
Valdis.Kletnieks@vt.edu wrote:
> OK, I'm running a Fedora Core 6 (rawhide actually) box with -18-mm1 kernel.
> I've installed kexec-tools and similar, and am trying to get the kernels
> built following the hints in Documentation/kdump/kdump.txt, but a few
> questions arise:
>
> 1) Other than the fact that the Fedora userspace looks for a ${kernelvers}kdump
> kernel, is there any reason the kdump kernel has to match the running one, or
> can an older kernel be used?
>
> 2) I'm presuming that a massively stripped down kernel (no sound support,
> no netfilter, no etc) that just has what's needed to mount the dump location
> is sufficient?
>
> 3) The docs recommend 'crashkernel=64M@16M', but that's 8% of my memory.
> What will happen if I try '16M@16M' instead? Just slower copying due to
> a smaller buffer cache space, or something more evil?
>
(cc added)
next prev parent reply other threads:[~2006-09-27 5:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-26 15:25 Valdis.Kletnieks
2006-09-27 5:10 ` Andrew Morton [this message]
2006-09-27 5:27 ` [Fastboot] " Horms
2006-09-27 8:00 ` Eric W. Biederman
2006-09-27 12:51 ` Valdis.Kletnieks
2006-09-27 13:11 ` Vivek Goyal
2006-09-27 13:24 ` Vivek Goyal
2006-09-27 14:44 ` Valdis.Kletnieks
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