On Sat, Sep 15, 2018 at 04:29:24PM +0800, Yi Wang wrote:
> Domain fails to start when its config xml including:
>   <vcpu cpuset="" current="8">64</vcpu>
>
>   # virsh create vm.xml
>   error: Failed to create domain from vm.xml
>   error: invalid argument: Failed to parse bitmap ''
>
> This patch fixes this.
>
> Signed-off-by: Yi Wang <wang.y...@zte.com.cn>
> Reviewed-by: Xi Xu <xu....@zte.com.cn>
> ---
>  src/conf/domain_conf.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 8619962..bacafb2 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -18553,7 +18553,7 @@ virDomainVcpuParse(virDomainDefPtr def,
>
>          if (def->placement_mode != VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO) {
>              tmp = virXMLPropString(vcpuNode, "cpuset");
> -            if (tmp) {
> +            if (tmp && strlen(tmp) != 0) {

... '&& *tmp' would suffice.

The patch is correct, but I believe there is a number of spots in the massive
domain_conf.c file where a similar fix would be needed, it might be worth
checking all the spots where no conversion like string-to-int string-to-enum or
any other additional parsing like address parsing is performed, those might be
good candidates.

I understand the file is massive, so let me know how that goes.

Erik

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