Re: [libvirt] VM creation failed : Permission denied : bind(unix:/var/run/libvirt/qemu//VM.monitor)

On Thu, Jul 30, 2009 at 05:44:41PM +0900, Ryota Ozaki wrote: > On Thu, Jul 30, 2009 at 5:33 PM, Pierre-Gilles > Mialon<pmialon(a)linagora.com> wrote: > >        I use Ovirt under Fedora 11 with the latest developpement package and the VM > > creation failed with : > > bind(unix:/var/run/libvirt/qemu//VM-4.monitor): Permission denied > > Ugh, this is a regression introduced by my patch... > (see [PATCH] qemu: fix monitor socket reconnection) > > Eventually we need to add ENOENT to errno checks, not replace EACCES > with ENOENT, I'm not sure why EACCES happens though. Anyone knows that? [...] > > libvirt-0.7.0-0.2.gitf055724.fc11.x86_64 > > libvirt-python-0.7.0-0.2.gitf055724.fc11.x86_64 > > libvirt-client-0.7.0-0.2.gitf055724.fc11.x86_64 > > libvirt-qpid-0.2.17-0.fc11.x86_64  Unclear, he's using the prerelease code from monday, not the one with the EACCES -> ENOENT replacement patch.

 One possibility for EACCES could be if the socket creation in qemu was done with a mode not allowing access and modified in subsequent code, allowing for a small windows where EACCES would be returned. Someone should check qemu code. I think allowing again retry on EACCES should be fine anyway, I don't see how that could break things, we would just hit a time out in the worst case where access is never granted.

 So my take is to just do the enclosed patch, Daniel -- Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/ daniel(a)veillard.com  | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library  http://libvirt.org/