I'm on Devuan 3 (Beowulf).
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sqlite-src-3330000$ uname -a
Linux ... 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) x86_64 GNU/Linux
sqlite-src-3330000$ cat bug.sh
make distclean
./configure CFLAGS=-DSQLITE_MAX_MMAP_SIZE=8589934592
make testfixture
cd test
../testfixture permutations.test extraquick bigmmap.test
sqlite-src-3330000$ ./bug.sh
rm -f *.lo *.la *.o sqlite3 libsqlite3.la
...
bigmmap-1.0... Ok
bigmmap-1.1... Ok
bigmmap-1.2... Ok
bigmmap-1.3... Ok
bigmmap-1.4... Ok
bigmmap-1.5... Ok
bigmmap-1.6... Ok
bigmmap-1.7... Ok
bigmmap-2.0.0... Ok
bigmmap-2.0.0.1... Ok
bigmmap-2.0.0.2... Ok
bigmmap-2.0.0.3...
! bigmmap-2.0.0.3 expected: [
QUERY PLAN
|--SCAN TABLE t0 AS o USING COVERING INDEX sqlite_autoindex_t0_1
`--CORRELATED SCALAR SUBQUERY
`--SEARCH TABLE t0 AS i USING INTEGER PRIMARY KEY (rowid=?)
]
! bigmmap-2.0.0.3 got: [
QUERY PLAN
|--SCAN TABLE t0 AS o USING COVERING INDEX sqlite_autoindex_t0_1
`--CORRELATED SCALAR SUBQUERY xxxxxx
`--SEARCH TABLE t0 AS i USING INTEGER PRIMARY KEY (rowid=?)
]
bigmmap-2.0.1.1... Ok
...
bigmmap.test-closeallfiles... Ok
bigmmap.test-sharedcachesetting... Ok
Time: bigmmap.test 73 ms
Memory used: now 24 max 1663896 max-size 87200
Allocation count: now 1 max 543
Page-cache used: now 0 max 0 max-size 4360
Page-cache overflow: now 0 max 1508048
SQLite 2020-08-14 13:23:32 fca8dc8b578f215a969cd899336378966156154710873e68b3d9ac5881b0ff3f
72 errors out of 236 tests on e5-1650 Linux 64-bit little-endian
!Failures on these tests: bigmmap-2.0.0.3 bigmmap-2.0.1.3 bigmmap-2.0.2.3 bigmmap-2.0.3.3 bigmmap-2.0.4.3 bigmmap-2.0.5.3 bigmmap-2.0.6.3 bigmmap-2.0.7.3 bigmmap-2.1.0.3 bigmmap-2.1.1.3 bigmmap-2.1.2.3 bigmmap-2.1.3.3 bigmmap-2.1.4.3 bigmmap-2.1.5.3 bigmmap-2.1.6.3 bigmmap-2.1.7.3 bigmmap-2.2.0.3 bigmmap-2.2.1.3 bigmmap-2.2.2.3 bigmmap-2.2.3.3 bigmmap-2.2.4.3 bigmmap-2.2.5.3 bigmmap-2.2.6.3 bigmmap-2.2.7.3 bigmmap-2.3.0.3 bigmmap-2.3.1.3 bigmmap-2.3.2.3 bigmmap-2.3.3.3 bigmmap-2.3.4.3 bigmmap-2.3.5.3 bigmmap-2.3.6.3 bigmmap-2.3.7.3 bigmmap-2.4.0.3 bigmmap-2.4.1.3 bigmmap-2.4.2.3 bigmmap-2.4.3.3 bigmmap-2.4.4.3 bigmmap-2.4.5.3 bigmmap-2.4.6.3 bigmmap-2.4.7.3 bigmmap-2.5.0.3 bigmmap-2.5.1.3 bigmmap-2.5.2.3 bigmmap-2.5.3.3 bigmmap-2.5.4.3 bigmmap-2.5.5.3 bigmmap-2.5.6.3 bigmmap-2.5.7.3 bigmmap-2.6.0.3 bigmmap-2.6.1.3 bigmmap-2.6.2.3 bigmmap-2.6.3.3 bigmmap-2.6.4.3 bigmmap-2.6.5.3 bigmmap-2.6.6.3 bigmmap-2.6.7.3 bigmmap-2.7.0.3 bigmmap-2.7.1.3 bigmmap-2.7.2.3 bigmmap-2.7.3.3 bigmmap-2.7.4.3 bigmmap-2.7.5.3 bigmmap-2.7.6.3 bigmmap-2.7.7.3 bigmmap-2.8.0.3 bigmmap-2.8.1.3 bigmmap-2.8.2.3 bigmmap-2.8.3.3 bigmmap-2.8.4.3 bigmmap-2.8.5.3 bigmmap-2.8.6.3 bigmmap-2.8.7.3
All memory allocations freed - no leaks
Memory used: now 0 max 1663896 max-size 87200
Allocation count: now 0 max 543
Page-cache used: now 0 max 0 max-size 4360
Page-cache overflow: now 0 max 1508048
Maximum memory usage: 1663896 bytes
Current memory usage: 0 bytes
Number of malloc() : -1 calls
sqlite-src-3330000$