osd/PG: print debug if we fail to decode snapbl

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index def3114e7acc3d503a165f90e161f514383f5d06..9fec756069c3c61f6648626296271a6904ba7f1b 100644 (file)
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -3572,6 +3572,7 @@ void PG::update_snap_map(
        try {
          decode(snaps, p);
        } catch (...) {
+         derr << __func__ << " decode snaps failure on " << *i << dendl;
          snaps.clear();
        }
        set<snapid_t> _snaps(snaps.begin(), snaps.end());