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

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Fri, Nov 29, 2013 at 10:26 AM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> 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?

Based on the interface concerns, I'm taking it you think this is
probably not 4.4 material at this point?

 -George

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