journald: be more careful when we try to flush the runtime journal to disk and the disk is close to being fullsystemd/v203

Bump the minimal size of the journal so that we can be sure creating the
journal file will always succeed. Previously the minimum size was
smaller than a empty jounral file...

1 files changed, 6 insertions, 0 deletions

diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index 1b5a22b122..88163c0116 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -938,6 +938,12 @@ int server_flush_to_var(Server *s) {
                 server_rotate(s);
                 server_vacuum(s);
 
+                if (!s->system_journal) {
+                        log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful.");
+                        r = -EIO;
+                        goto finish;
+                }
+
                 log_debug("Retrying write.");
                 r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);
                 if (r < 0) {