while trying a live migration for KVM with libvirt I call virDomainMigrate
() with the following parameters
virDomainMigrate (localDomain,
(virConnectPtr)dconn,
VIR_MIGRATE_LIVE,
"vm_mig_dubi",
"tcp:9.148.4.95:4444",
0
);
The connection with the target VM was established ok
Still I get the following error:
libvir: QEMU error : invalid argument in only tcp URIs are supported for
KVM migrations
looking at the code of qemu_driver.c /qemudDomainMigratePrepare2() is
see the following code (for version2 case):
if (!STREQLEN (uri_in, "tcp:", 6)) {
qemudReportError (dconn, NULL, NULL, VIR_ERR_INVALID_ARG,
"%s", _("only tcp URIs are supported for KVM
migrations"));
goto cleanup;
}
why is the strncmp using length 6 and not 4 . I think this is the reason
for the failure . If I put a NULL af ter the "tcp:" then
I do not fail here (strncmp stop at the first NULL) but I fail one step
later pasrsing the port because the NULL terminates the string
Do we need a fix here ?
thanks
Zvi Dubitzky
Virtualization and System Architecture Email:dubi@xxxxxxxxxx
IBM Haifa Research Laboratory Phone: +972-4-8296182
Haifa, 31905, ISRAEL
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