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-rw-r--r--src/core/transaction.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/core/transaction.c b/src/core/transaction.c
index 3984947783..394c181352 100644
--- a/src/core/transaction.c
+++ b/src/core/transaction.c
@@ -603,6 +603,8 @@ rollback:
}
int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e) {
+ Iterator i;
+ Job *j;
int r;
unsigned generation = 1;
@@ -611,6 +613,12 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e
/* This applies the changes recorded in tr->jobs to
* the actual list of jobs, if possible. */
+ /* Reset the generation counter of all installed jobs. The detection of cycles
+ * looks at installed jobs. If they had a non-zero generation from some previous
+ * walk of the graph, the algorithm would break. */
+ HASHMAP_FOREACH(j, m->jobs, i)
+ j->generation = 0;
+
/* First step: figure out which jobs matter */
transaction_find_jobs_that_matter_to_anchor(tr->anchor_job, generation++);