Messages in this thread | | | Date | Tue, 26 Sep 2006 22:10:29 -0700 | From | Andrew Morton <> | Subject | Re: Stupid kexec/kdump question... |
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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? >
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