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Re: [libvirt] hooks mechanism - possible source code bug



On Fri, May 28, 2010 at 01:33:49PM +0200, Paolo Smiraglia wrote:
> I'm working on hooks mechanism. When I try to add some field in enum
> 
>     virHookQemuOp
> 
> make command return me error
> 
>     $ util/hooks.c:***: error: negative width in bit-field
> 'verify_error_if_negative_size__'
> 
> I think the error is caused by a little programming error in
> 
>    /src/util/hooks.c:74
> 
> where the struct virHookLxcOp is allocated by macro VIR_ENUM_IMPL with
> dimension VIR_HOOK_QEMU_OP_LAST and not with VIR_HOOK_LXC_OP_LAST.
> 
> A possible solution could be to apply the patch listed below.
> 
> 
> diff --git a/libvirt-20100528/src/util/hooks.c
> b/libvirt-20100528-pmchook/src/util/hooks.c
> index dec9223..482480d 100644
> --- a/libvirt-20100528/src/util/hooks.c
> +++ b/libvirt-20100528-pmchook/src/util/hooks.c
> @@ -71,7 +71,7 @@ VIR_ENUM_IMPL(virHookQemuOp, VIR_HOOK_QEMU_OP_LAST,
>                "start",
>                "stopped")
> 
> -VIR_ENUM_IMPL(virHookLxcOp, VIR_HOOK_QEMU_OP_LAST,
> +VIR_ENUM_IMPL(virHookLxcOp, VIR_HOOK_LXC_OP_LAST,
>                "start",
>                "stopped")

Oops, my bad, I hope there isn't more QEMU/LXC cut and paste errors :-)

    thanks for the report !

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel veillard com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/


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