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Re: [MirageOS-devel] Mirage trace viewer on xenserver


  • To: Anil Madhavapeddy <anil@xxxxxxxxxx>
  • From: Dave Scott <Dave.Scott@xxxxxxxxxx>
  • Date: Mon, 11 May 2015 10:47:06 +0000
  • Accept-language: en-GB, en-US
  • Cc: Mirageos-devel <mirageos-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 11 May 2015 10:47:13 +0000
  • List-id: Developer list for MirageOS <mirageos-devel.lists.xenproject.org>
  • Thread-index: AQHQiX+PhruxTLZkzEWlMEPpNK3kjp11zLCAgACubYA=
  • Thread-topic: [MirageOS-devel] Mirage trace viewer on xenserver

Hi,

> On 11 May 2015, at 01:22, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
> 
> Hi Ania,
> 
> There's no binary of the trace viewer for CentOS 5, but it should be possible 
> to bootstrap OPAM using OCaml 3.12.1 and CentOS 5.
> 
> Dave, Jon, do you already do this?  It would be very useful to have some of 
> the debugging tools available more easily in the dom0 (since running them in 
> a VM right now isn't the easiest thing).

The recent XenServer alpha[1] is running a more modern CentOS 7 with opam 1.2 
pre-installed in dom0. I regularly compile and run code in dom0, with the 
caveat that I have to place the opam âroot in the secondary/backup partition 
because otherwise I fill up dom0. I think Iâll update the packages to use the 
same OCaml and opam version as recommended on the opam website (the one built 
from the OpenSuse build service) for maximum convenience. Of course the main 
downside with an alpha build is that it might be unstable and is unsuitable for 
production use. For development itâs fine though.

Bootstrapping opam on CentOS 5 should be possible. However thereâs no pre-built 
aspcud and last time I checked the internal solver had difficulty choosing good 
solutions. IIRC when I tried compiling the dependencies of aspcud (gringo et 
al) I started hitting problems with the old glibc. Perhaps an off-box solver 
would avoid the problem?

Cheers,
Dave

[1] 
http://xenserver.org/overview-xenserver-open-source-virtualization/prerelease.html

> 
> Anil
> 
>> On 8 May 2015, at 07:09, Ania Skorupa <ania.skorupa@xxxxxxxxx> wrote:
>> 
>> Hi,
>> 
>> How can mirage trace viewer be used on Citrix xenserver? I was trying to run 
>> the binary version (x86_64) on xenserver 6.5.0 but it requires glibc 2.7, 
>> while the latest version on xenserver is 2.5. Compiling from source on 
>> xenserver would be a pain.
>> 
>> Any instructions?
>> 
>> Thanks.
>>  
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> 
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