Re: [PATCH] qemu: make advice from numad available when building commandline

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On Thu, Oct 30, 2014 at 06:21:28PM +0100, Michal Privoznik wrote:
On 30.10.2014 07:40, Martin Kletzander wrote:
Particularly in qemuBuildNumaArgStr(), there was a need for the advice
due to memory backing, which needs to know the nodeset it will be pinned
to.  With newer qemu this caused the following error when starting
domain:

   error: internal error: Advice from numad is needed in case of
   automatic numa placement

even when starting perfectly valid domain, e.g.:

   ...
   <vcpu placement='auto'>4</vcpu>
   <numatune>
     <memory mode='strict' placement='auto'/>
   </numatune>
   <cpu>
     <numa>
       <cell id='0' cpus='0' memory='524288'/>
       <cell id='1' cpus='1' memory='524288'/>
     </numa>
   </cpu>
   ...

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1138545

Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>

Would it be possible to add a test case? Maybe you'd need to mock some
functions but we already have qemuxml2argvmock.c. Otherwise the code
looks okay and with test case I'd ACK it for the freeze.


Well, I can add a xm2argv test that formats -object memory-ram with
some nodeset, but given that the nodeset needs to be passed as a
parameter of the function that gets called in the test itself, it
doesn't make much of a sense, does it.  No need to have it in the
release, I'd push it after release anyway, so thanks for the review.

Martin

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