Re: [libvirt] [PATCH] qemu: Fix crash in tunnelled migration

Any attempt to start a tunnelled migration with libvirtd that supports RDMA migration (specifically commit v1.2.8-226-ged22a47) crashes libvirtd on the destination host. The crash is inevitable because qemuMigrationPrepareAny is always called with NULL protocol in case of tunnelled migration. https://bugzilla.redhat.com/show_bug.cgi?id=1147331 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com&gt; --- src/qemu/qemu_migration.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 100600e..89313df 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2707,7 +2707,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, QEMU_MIGRATION_COOKIE_NBD))) goto cleanup; - if (STREQ(protocol, "rdma") && !vm->def->mem.hard_limit) { + if (STREQ_NULLABLE(protocol, "rdma") && !vm->def->mem.hard_limit) { virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("cannot start RDMA migration with no memory hard " "limit set"));