Re: [Xen-devel] [PATCH v2 0/2] Add xen-crashd.

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2013-11-15 at 14:20 -0500, Don Slutz wrote:

>   Ian Campbell:
>     Add 1st pass on some documention on crash's remote protocol.

My concern with this was that we were using some sort of internal crash
protocol which has no ABI stability guarantees etc. Documenting it in
the Xen tree doesn't really do anything to alleviate that concern. It
should be a protocol which is published by the crash folks not us.
Ideally they would agree to some sort of protocol stability level, or
maybe you can show that the protocol had inbuilt backward and forward
compatibility capabilities already?

Even more concerning is [0] where one of the crash maintainers says:
> It's been deprecated for almost 10 years now.  I don't understand how
> you have been able to even get it to build, never mind work as the mail
> thread indicates?

We surely don't want to be adding code which relies on a protocol which
has been deprecated for 10 years!

Daniel K asked about gdbsx -- can that not speak to crash somehow? Or
run on /proc/vmcore directly, or be extended to do so?

Ian.

[0]
http://thread.gmane.org/gmane.linux.kernel.crash-dump.crash-utility/4714/focus=4736


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