Import wiredtiger-wiredtiger-2.7.0-1122-g9cf8eb2.tar.gz from wiredtiger branch mongodb-3.4

ref: 444981a..9cf8eb2

SERVER-23040  Coverity analysis defect 98151: Dereference after null check
WT-2123       Don't clear allocated memory if not required
WT-2318       Configurable thread wake up time
WT-2322       Join cursor with isolation read-uncommitted may give different results with Bloom filters
WT-2345       Evicting tiny pages creates small pages on disk
WT-2375       Add tests for collators
WT-2381       Dump utility discards table config
WT-2384       lt, le conditions for ordering cursor in join cursor
WT-2391       De-prioritize eviction from indexes
WT-2404       Add streaming pack/unpack methods to the extension API
WT-2414       Avoid extractor calls for ordering cursor in join cursor
WT-2418       Rebalance operation failing with EBUSY
WT-2426       Deadlock caused by recent changes to checkpoint handle locking
WT-2431       Join statistics documentation needed
WT-2435       __wt_evict_file_exclusive_on/off cleanups
WT-2436       lt, le conditions for ref cursor with "strategy=bloom" in join cursor
WT-2443       Getting statistic for all indexes used in join cursor
WT-2444       Broken flag test in wtperf, whitespace
WT-2447       Join cursor reads main table
WT-2448       Add no_scale flag to relevant statistics
WT-2449       Configure should check for a 64-bit build
WT-2451       Allow eviction of metadata
WT-2454       checkpoint_sync=false does *not* prevent flushes/sync to disk.
WT-2456       Update Power8 CRC32 Code
WT-2457       Dropping an LSM table can fail with EBUSY when no user ops are active
WT-2459       Allow Configure scripts to provide the --tag option for libtool when compiling on PPC
WT-2460       Checkpoint failing with WT_ROLLBACK
WT-2461       Python sweep01 test failing
WT-2463       Test that measures idle CPU usage fails under valgrind
WT-2464       Valgrind errors.
WT-2465       Coverity 1352899: Dereference before null check
WT-2466       Coverity 1352893 Buffer not null terminated
WT-2467       Coverity 1352894: Logically dead code
WT-2468       Coverity 1352896: Explicit null dereferenced
WT-2469       Coverity 1352897: Integer overflowed argument
WT-2470       Coverity 1352898: Resource leak
WT-2471       Review WiredTiger "int" printf formats
WT-2473       MSVC doesn't support PRId64
WT-2475       Have reconf script remove cached configure results
WT-2476       btree->evict_lock is being accessed after being destroyed
WT-2477       Missing define in Windows wiredtiger_config.h
WT-2478       Valgrind test failures
WT-2481       Recent changes affect LSM performance
WT-2482       Coverity 1353015, 1353016, out-of-bounds access
WT-2483       readonly02 periodically fails
WT-2484       Coverity 1345809: unchecked return value
WT-2485       Test/format failure with Floating point exception
WT-2487       Release memory in manydbs test
WT-2489       Fix compiler warnings from /test/manydbs
WT-2490       search_near() returns wrong key for column-store
WT-2492       Windows test_config04.test_config04.test_invalid_config crashes
WT-2493       Verbose lsm_manager unsupported
WT-2494       Review calls to __wt_free, plus minor bug in an error path.
WT-2495       Missing memory initialization leads to crash on Windows
WT-2496       Testing revealed error unable to read root page
WT-2497       Enhance test/format to save a copy of backup
WT-2498       LSM tree drop hangs when a user cursor is open
WT-2499       LSM shutdown race causes segfault
WT-2501       Dropping a just opened LSM tree isn't safe
WT-2502       Memory leak in locking handles for checkpoint
WT-2503       Build warning in lsm_tree.c
WT-2506       Using an uninitialised value

3 files changed, 9 insertions, 4 deletions

diff --git a/src/third_party/wiredtiger/src/block/block_ckpt.c b/src/third_party/wiredtiger/src/block/block_ckpt.c
index 03059c8f23a..812bf99acfb 100644
--- a/src/third_party/wiredtiger/src/block/block_ckpt.c
+++ b/src/third_party/wiredtiger/src/block/block_ckpt.c
@@ -812,8 +812,7 @@ __ckpt_string(WT_SESSION_IMPL *session,
 	WT_RET(__wt_block_buffer_to_ckpt(session, block, addr, ci));
 
 	WT_RET(__wt_buf_fmt(session, buf,
-	    "version=%d",
-	    ci->version));
+	    "version=%" PRIu8, ci->version));
 	if (ci->root_offset == WT_BLOCK_INVALID_OFFSET)
 		WT_RET(__wt_buf_catfmt(session, buf, ", root=[Empty]"));
 	else
diff --git a/src/third_party/wiredtiger/src/block/block_open.c b/src/third_party/wiredtiger/src/block/block_open.c
index d9b2f908737..adb745c99e7 100644
--- a/src/third_party/wiredtiger/src/block/block_open.c
+++ b/src/third_party/wiredtiger/src/block/block_open.c
@@ -369,7 +369,7 @@ __desc_read(WT_SESSION_IMPL *session, WT_BLOCK *block)
 		WT_ERR_MSG(session, WT_ERROR,
 		    "unsupported WiredTiger file version: this build only "
 		    "supports major/minor versions up to %d/%d, and the file "
-		    "is version %d/%d",
+		    "is version %" PRIu16 "/%" PRIu16,
 		    WT_BLOCK_MAJOR_VERSION, WT_BLOCK_MINOR_VERSION,
 		    desc->majorv, desc->minorv);
 
diff --git a/src/third_party/wiredtiger/src/block/block_write.c b/src/third_party/wiredtiger/src/block/block_write.c
index 4c6ac198fe4..e05a430832e 100644
--- a/src/third_party/wiredtiger/src/block/block_write.c
+++ b/src/third_party/wiredtiger/src/block/block_write.c
@@ -206,10 +206,16 @@ __wt_block_write_off(WT_SESSION_IMPL *session, WT_BLOCK *block,
 	uint32_t cksum;
 	bool local_locked;
 
-	blk = WT_BLOCK_HEADER_REF(buf->mem);
 	fh = block->fh;
 
 	/*
+	 * Clear the block header to ensure all of it is initialized, even the
+	 * unused fields.
+	 */
+	blk = WT_BLOCK_HEADER_REF(buf->mem);
+	memset(blk, 0, sizeof(*blk));
+
+	/*
 	 * Swap the page-header as needed; this doesn't belong here, but it's
 	 * the best place to catch all callers.
 	 */