Messages in this thread |  | | Subject | Re: [PATCH, RFC] panic-note: Annotation from user space for panics | | From | (Eric W. Biederman) | | Date | Wed, 18 Nov 2009 08:07:21 -0800 |
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Matt Mackall <mpm@selenic.com> writes:
> As much as I like kexec, it loses on memory footprint by about 100x. > It's not appropriate for all use cases, especially things like > consumer-grade wireless access points and phones.
In general I agree. The cost of a second kernel and initrd can be prohibitive in the smallest systems, and if you do a crash capture with using a standalone app that is reinventing the wheel.
That said. I can happily run kdump with only 16M-20M reserved. So on many systems the cost is affordable.
Eric
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