[Libvir] Problem with hypercall

Daniel Veillard veillard at redhat.com
Mon Oct 2 21:26:48 UTC 2006

On Mon, Oct 02, 2006 at 07:31:41PM +0100, Daniel P. Berrange wrote:
> Updating for this ABI breakage is beginning to feel like a never ending
> problem :-(  It seems I missed one change in my last patch - mlock()'ing
> the wrong bit of data for getdomainlist. By (bad) luck it just happened
> to work anyway on my tests because I guess there was sufficient allocated
> memory that mlock() was still in range. Running unprivileged via the proxy
> though, the proxy will always request info on 1020 domains (even if only
> a couple are running), which meant we mlock() several 10's of KB of data.
> THis ran in an area on unallocated mem & caused mlock() to fail, hence
> my discovering the problem.

  urgh !

> Anyway, attached is the patch I've applied to CVS...

  Thanks for spotting this! I fixed the munlock -> mlock transition :-)
and updated the error messages to report the new sizes,


Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard      | virtualization library  http://libvirt.org/
veillard at redhat.com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine  http://rpmfind.net/

More information about the libvir-list mailing list