libdb/SOURCES/checkpoint-opd-deadlock.patch

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2020-07-14 01:30:02 +00:00
--- db-5.3.21/src/db/db_cam.c.opd_deadlock 2017-10-31 12:20:54.118979690 +0100
+++ db-5.3.21/src/db/db_cam.c 2017-10-31 12:21:06.828739341 +0100
@@ -868,6 +868,11 @@
flags == DB_PREV || flags == DB_PREV_DUP)) {
if (tmp_rmw && (ret = dbc->am_writelock(dbc)) != 0)
goto err;
+ /* Latch the primary tree page here in order to not deadlock later. */
+ if (cp->page == NULL &&
+ (ret = __memp_fget(mpf, &cp->pgno,
+ dbc->thread_info, dbc->txn, 0, &cp->page)) != 0)
+ goto err;
if (F_ISSET(dbc, DBC_TRANSIENT))
opd = cp->opd;
else if ((ret = __dbc_idup(cp->opd, &opd, DB_POSITION)) != 0)