Stdio was buffering strings in functions: myDomainEventBlockJobCallback, myDomainEventBlockThresholdCallback, myDomainEventMemoryFailureCallback. It caused flushing the printed strings from callbacks at the end of a run, not gradually. The solution is to add \n at the end of each string. Signed-off-by: Kristina Hanicova <khanicov(a)redhat.com&gt; --- examples/c/misc/event-test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/examples/c/misc/event-test.c b/examples/c/misc/event-test.c index f164e825e1..76d4f3f6e8 100644 --- a/examples/c/misc/event-test.c +++ b/examples/c/misc/event-test.c @@ -938,7 +938,7 @@ myDomainEventBlockJobCallback(virConnectPtr conn G_GNUC_UNUSED, const char *eventName = opaque; printf("%s EVENT: Domain %s(%d) block job callback '%s' disk '%s', " - "type '%s' status '%s'", + "type '%s' status '%s'\n", __func__, virDomainGetName(dom), virDomainGetID(dom), eventName, disk, blockJobTypeToStr(type), blockJobStatusToStr(status)); return 0; @@ -956,7 +956,7 @@ myDomainEventBlockThresholdCallback(virConnectPtr conn G_GNUC_UNUSED, { /* Casts to uint64_t to work around mingw not knowing %lld */ printf("%s EVENT: Domain %s(%d) block threshold callback dev '%s'(%s), " - "threshold: '%" PRIu64 "', excess: '%" PRIu64 "'", + "threshold: '%" PRIu64 "', excess: '%" PRIu64 "'\n", __func__, virDomainGetName(dom), virDomainGetID(dom), dev, NULLSTR(path), (uint64_t)threshold, (uint64_t)excess); return 0; @@ -972,7 +972,7 @@ myDomainEventMemoryFailureCallback(virConnectPtr conn G_GNUC_UNUSED, void *opaque G_GNUC_UNUSED) { printf("%s EVENT: Domain %s(%d) memory failure: recipient '%d', " - "aciont '%d', flags '%d'", __func__, virDomainGetName(dom), + "aciont '%d', flags '%d'\n", __func__, virDomainGetName(dom), virDomainGetID(dom), recipient, action, flags); return 0; } -- 2.29.2