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Re: [Qemu-devel] [QEMU PATCH v14 4/4] migration: add error_report


From: Dr. David Alan Gilbert
Subject: Re: [Qemu-devel] [QEMU PATCH v14 4/4] migration: add error_report
Date: Wed, 7 Dec 2016 19:51:27 +0000
User-agent: Mutt/1.7.1 (2016-10-04)

* Jianjun Duan (address@hidden) wrote:
> Added error_report where version_ids do not match in vmstate_load_state.
> 
> Signed-off-by: Jianjun Duan <address@hidden>

Yes, but the error message would be better if it printed
the two version numbers so you could see what went wrong.

Reviewed-by: Dr. David Alan Gilbert <address@hidden>

> ---
>  migration/vmstate.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/migration/vmstate.c b/migration/vmstate.c
> index 2f9d4ba..0e6fce4 100644
> --- a/migration/vmstate.c
> +++ b/migration/vmstate.c
> @@ -85,6 +85,7 @@ int vmstate_load_state(QEMUFile *f, const 
> VMStateDescription *vmsd,
>  
>      trace_vmstate_load_state(vmsd->name, version_id);
>      if (version_id > vmsd->version_id) {
> +        error_report("%s %s",  vmsd->name, "too new");
>          trace_vmstate_load_state_end(vmsd->name, "too new", -EINVAL);
>          return -EINVAL;
>      }
> @@ -95,6 +96,7 @@ int vmstate_load_state(QEMUFile *f, const 
> VMStateDescription *vmsd,
>              trace_vmstate_load_state_end(vmsd->name, "old path", ret);
>              return ret;
>          }
> +        error_report("%s %s",  vmsd->name, "too old");
>          trace_vmstate_load_state_end(vmsd->name, "too old", -EINVAL);
>          return -EINVAL;
>      }
> -- 
> 1.9.1
> 
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK



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