Re: [PATCH] Revert "Error out on missing machine type in machine configs"

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On 02/25/2016 07:24 AM, Ján Tomko wrote:
> Revert commit 55e6d8cd9eac7eb2aaa4d221585e9402cf7269d5.
> 
> It unconditionally required a machine type for all machine types
> even though qemu is the only emulator using them.
> 
> Reverting this re-introduces the crash when someone fiddles with
> libvirt's machine configs with /etc/, but fixes persistent domains
> for other drivers.
> 
> Breaks https://bugzilla.redhat.com/show_bug.cgi?id=1267256 again.
> ---
> A proper fix would be too invasive for the freeze, we would either
> * have to revert commit f1a89a8 which relaxed the requirement
>   to execute the emulator
> * or (partially) revert commits a8b628e and 3d92a00 which reintroduced
>   them to post parse callbacks and keep track of which parser
>   requires the machine type in virDomainDefParserConfig.
> 
>  src/conf/domain_conf.c | 6 ------
>  1 file changed, 6 deletions(-)
> 
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 3b15cb4..79758d4 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -14851,12 +14851,6 @@ virDomainDefParseXML(xmlDocPtr xml,
>              goto error;
>          }
>          VIR_FREE(capsdata);
> -    } else {
> -        if (!def->os.machine) {
> -            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> -                           _("Missing machine type"));
> -            goto error;
> -        }
>      }
>  
>      /* Extract domain name */
> 

Why not just move that check to the beginning of the qemu specific
qemuDomainDefPostParse? And add a test case that hits the error

- Cole

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