[Error message] error: Failed to start domain lxc_test1 error: internal error Failed to create veth device pair: 512 The reason of the failure is that lxc driver unexpectedly re-uses an auto-assigned veth name and tries to create the created veth again. The failure will happen when a domain has multiple network interfaces and the names of those are not specified in XML. The patch fixes the problem by resetting buffers of veth names in every iteration of creating veth. * src/lxc/lxc_driver.c: prevent re-using auto-assigned veth name Reported by Kumar L Srikanth-B22348. --- src/lxc/lxc_driver.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 409b1cf..554bf66 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -786,14 +786,15 @@ static int lxcSetupInterfaces(virConnectPtr conn, { int rc = -1, i; char *bridge = NULL; - char parentVeth[PATH_MAX] = ""; - char containerVeth[PATH_MAX] = ""; brControl *brctl = NULL; if (brInit(&brctl) != 0) return -1; for (i = 0 ; i < def->nnets ; i++) { + char parentVeth[PATH_MAX] = ""; + char containerVeth[PATH_MAX] = ""; + switch (def->nets[i]->type) { case VIR_DOMAIN_NET_TYPE_NETWORK: { -- 1.6.5.2