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SUSE:SLE-15-SP1:GA
libdb-4_8
0001-OPD-deadlock-RH-BZ-1349779.patch
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File 0001-OPD-deadlock-RH-BZ-1349779.patch of Package libdb-4_8
From 5124401571fa1807a6595659ab7a069f17fe1068 Mon Sep 17 00:00:00 2001 From: William Brown <william@blackhats.net.au> Date: Tue, 27 Aug 2019 10:01:54 +1000 Subject: [PATCH] OPD deadlock: RH BZ 1349779 --- db/db_cam.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/db/db_cam.c b/db/db_cam.c index 4c1322d..7f133e5 100644 --- a/db/db_cam.c +++ b/db/db_cam.c @@ -850,6 +850,11 @@ __dbc_iget(dbc, key, data, flags) 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) -- 2.20.1 (Apple Git-117)
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