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Re: [MirageOS-devel] Testing for the Xen Project

[+CC Ian Campbell]

Our specific need is actually pretty short term -- we can easily build a number 
of 'unit test' kernels that do simple activities such as boot, write to 
xenstore, attach a net/block front, and verify basic health conditions (such as 
whether the backend moves to the connected state).

Distro support for a lot of this seems to be in a variable state across the 
board.  For instance, we'd like to have a known-good configuration for Debian, 
Ubuntu, Fedora and CentOS in terms of which toolchain to use (xl, xm, libvirt 
in particular) and what configurations to recommend to users installing Xen.  
Debian stable is still on XM for instance, with an unclear story on libvirt 
support, whereas Ubuntu appears to have problems with xl and starting up blktap.

More structured unit tests that run on all these platforms would be extremely 
useful to highlight issues early, and Mirage provides an easy way to build 
these tests (see https://github.com/mirage/mirage-skeleton for a growing 

We don't really have the resources to maintain the sysadmin infrastructure for 
these tests, but can certainly help with triaging failures.  The biggest 
blocker for new users of Mirage that I've talked to (often unfamiliar with both 
OCaml and Xen) has usually been getting to a working Xen installation, so I'd 
like to have a few recommended setups as soon as possible. 


On 18 Feb 2014, at 12:10, Lars Kurth <lars.kurth@xxxxxxx> wrote:

> Minutes are up : 
> http://lists.xenproject.org/archives/html/wg-test-framework/2014-02/msg00004.html
> However, I think Mirage would need to engage with Ian as community rep and 
> Mirage support woul dbe under long term goals I would assume
> Lars
> On 17/02/2014 18:05, Amir Chaudhry wrote:
>> Hi Lars,
>> I'm curious about where things stand with the testing for the Xen project.  
>> I've gone through the wg-test-framework archives and tried to catchup with 
>> minutes. I'm wondering when the next set will be posted (from the meeting on 
>> the 13th).
>> Having a testing setup for Xen would be really useful for Mirage.  Since 
>> we're having more people try out our tutorials and knowing the state of 
>> things in different environments would help us catch issues quicker.
>> Thanks,
>> Amir
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