On 08/12/2010 08:25 AM, Chris Lalancette wrote:
> The problem is that on the source of the migration, libvirtd
> is responsible for creating the unix socket over which the data
> will flow. Since libvirtd is running as root, this file will
> be created as root. When the qemu process running as qemu:qemu
> goes to access the unix file to write data to it, it will get
> permission denied and fail. Make sure to change the owner
> of the unix file to qemu:qemu.
>
> Thanks to Justin Clift for testing this patch out for me.
>
> Signed-off-by: Chris Lalancette <clalance@xxxxxxxxxx>
> ---
> src/qemu/qemu_driver.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 3dfd1ae..b6b6633 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -10975,6 +10975,13 @@ static int doTunnelMigrate(virDomainPtr dom,
> goto cleanup;
> }
>
> + if (chown(unixfile, qemu_driver->user, qemu_driver->group) < 0) {
> + virReportSystemError(errno,
> + _("Cannot change unix socket '%s' owner"),
> + unixfile);
> + goto cleanup;
> + }
ACK.
--
Eric Blake eblake@xxxxxxxxxx +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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