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-rw-r--r--src/build.c1
-rw-r--r--src/vdbe.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/build.c b/src/build.c
index 25954b4d4..4f76c9380 100644
--- a/src/build.c
+++ b/src/build.c
@@ -1070,6 +1070,7 @@ static void sqlite3ForceNotReadOnly(Parse *pParse){
Vdbe *v = sqlite3GetVdbe(pParse);
if( v ){
sqlite3VdbeAddOp3(v, OP_JournalMode, 0, iReg, PAGER_JOURNALMODE_QUERY);
+ sqlite3VdbeUsesBtree(v, 0);
}
}
diff --git a/src/vdbe.c b/src/vdbe.c
index 54588b2a1..ad3008669 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -7247,6 +7247,7 @@ case OP_JournalMode: { /* out2 */
pPager = sqlite3BtreePager(pBt);
eOld = sqlite3PagerGetJournalMode(pPager);
if( eNew==PAGER_JOURNALMODE_QUERY ) eNew = eOld;
+ assert( sqlite3BtreeHoldsMutex(pBt) );
if( !sqlite3PagerOkToChangeJournalMode(pPager) ) eNew = eOld;
#ifndef SQLITE_OMIT_WAL