[libvirt] [PATCH 1/2] libxl: don't attempt to probe a non-existent emulator
When probing the <emulator> with '-help' to determine if
it is the old qemu, errors are reported if the emulator
doesn't exist
libvirt: error : internal error: Child process
(/usr/lib/xen/bin/qemu-dm -help) unexpected exit status 127:
libvirt: error : cannot execute binary /usr/lib/xen/bin/qemu-dm:
No such file or directory
Avoid the probe if the specified emulator doesn't exist,
squelching the error. There is no behavior change since
libxlDomainGetEmulatorType() would return
LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN if the probe failed
via virCommandRun().
Signed-off-by: Jim Fehlig <jfehlig(a)suse.com>
---
src/libxl/libxl_conf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index d927b37..3c388c7 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -916,6 +916,9 @@ libxlDomainGetEmulatorType(const virDomainDef *def)
if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
if (def->emulator) {
+ if (!virFileExists(def->emulator))
+ goto cleanup;
+
cmd = virCommandNew(def->emulator);
virCommandAddArgList(cmd, "-help", NULL);
--
2.8.2