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rbd: log stderror when running modprobe

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logging the error is not user-friendly and
it contains system error message. Log the
stderr which is user-friendly error message
for identifying the problem.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2022-02-14 16:48:31 +05:30 committed by mergify[bot]
parent 0311eb5f44
commit 46378f3bfc
2 changed files with 6 additions and 4 deletions
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5
internal/rbd/rbd_attach.go
View File

@ -199,14 +199,15 @@ func waitForPath(ctx context.Context, pool, namespace, image string, maxRetries
// set features available with rbd-nbd, and NBD module loaded status.
func setRbdNbdToolFeatures() {
var stderr string
// check if the module is loaded or compiled in
_, err := os.Stat(fmt.Sprintf("/sys/module/%s", moduleNbd))
if os.IsNotExist(err) {
// try to load the module
_, _, err = util.ExecCommand(context.TODO(), "modprobe", moduleNbd)
_, stderr, err = util.ExecCommand(context.TODO(), "modprobe", moduleNbd)
if err != nil {
hasNBD = false
log.WarningLogMsg("rbd-nbd: nbd modprobe failed with error %v", err)
log.WarningLogMsg("rbd-nbd: nbd modprobe failed (%v): %q", err, stderr)
}
}

5
internal/rbd/rbd_util.go
View File

@ -214,6 +214,7 @@ var supportedFeatures = map[string]imageFeature{
// GetKrbdSupportedFeatures load the module if needed and return supported
// features attribute as a string.
func GetKrbdSupportedFeatures() (string, error) {
var stderr string
// check if the module is loaded or compiled in
_, err := os.Stat(krbdSupportedFeaturesFile)
if err != nil {
@ -223,9 +224,9 @@ func GetKrbdSupportedFeatures() (string, error) {
return "", err
}
// try to load the module
_, _, err = util.ExecCommand(context.TODO(), "modprobe", rbdDefaultMounter)
_, stderr, err = util.ExecCommand(context.TODO(), "modprobe", rbdDefaultMounter)
if err != nil {
log.ErrorLogMsg("modprobe failed: %v", err)
log.ErrorLogMsg("modprobe failed (%v): %q", err, stderr)
return "", err
}