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copy into results into gdk_utils.c:728: GDKfree_: Assertion `(size & 2) == 0' failed. #3269

monetdb-team opened this issue Nov 30, 2020 · 0 comments


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@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2013-04-03 02:10:56 +0200
From: @skinkie
To: SQL devs <>
Version: 11.15.3 (Feb2013-SP1)
CC: jpfourny, @njnes

Last updated: 2013-07-03 08:47:59 +0200

Comment 18666

Date: 2013-04-03 02:10:56 +0200
From: @skinkie

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.40 Safari/537.31
Build Identifier:

I did the following query;

sql>copy 8583682 records into adres from '/mnt/database/openkvk/adres.tsv' delimiters '\n','\t' null as '';

With the result:

mserver5: gdk_utils.c:728: GDKfree_: Assertion `(size & 2) == 0' failed.

Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7fffeb774700 (LWP 15358)]
0x00007ffff49625b5 in raise () from /lib64/
(gdb) bt
0 0x00007ffff49625b5 in raise () from /lib64/
1 0x00007ffff4963a38 in abort () from /lib64/
2 0x00007ffff495b632 in ?? () from /lib64/
3 0x00007ffff495b6e2 in _assert_fail () from /lib64/
4 0x00007ffff6fa70b1 in GDKfree
(blk=0x7fffbba7f020) at gdk_utils.c:728
5 0x00007ffff6fa71ae in GDKfree (blk=0x7fffbba7f020) at gdk_utils.c:757
6 0x00007ffff7a5a485 in SQLload_file (cntxt=0x649168, as=0x7fffeb773190, b=0x7fffdc0ae020, out=0x0, csep=0x7fffdc0ae110 "\n", rsep=0x7fffdc0ae000 "\t", quote=0 '\000', skip=-3623171,
maxrow=8583682) at tablet.c:1701
7 0x00007fffec1e2698 in mvc_import_table (cntxt=0x649168, m=0x7fffdc005470, bs=0x7fffdc0ae020, sname=0x7fffdc0a96a0 "sys", tname=0x7fffdc0ace90 "adres", sep=0x7fffdc0ae110 "\n",
rsep=0x7fffdc0ae000 "\t", ssep=0x0, ns=0x7fffdc0ad7c0 "", sz=8583682, offset=0, locked=0) at sql_result.c:675
8 0x00007fffec1f2668 in mvc_import_table_wrap (cntxt=0x649168, mb=0x7fffdc082380, stk=0x7fffdc0bb890, pci=0x7fffdc0b6350) at
9 0x00007ffff7827828 in runMALsequence (cntxt=0x649168, mb=0x7fffdc082380, startpc=1, stoppc=0, stk=0x7fffdc0bb890, env=0x0, pcicaller=0x0) at mal_interpreter.c:642
10 0x00007ffff7826ced in callMAL (cntxt=0x649168, mb=0x7fffdc082380, env=0x7fffeb773cb8, argv=0x7fffeb773d10, debug=0 '\000') at mal_interpreter.c:469
11 0x00007fffec1b4a2e in SQLexecutePrepared (c=0x649168, be=0x7fffdc05cf80, q=0x7fffdc088a00) at sql_scenario.c:1844
12 0x00007fffec1b4e12 in SQLengineIntern (c=0x649168, be=0x7fffdc05cf80) at sql_scenario.c:1911
13 0x00007fffec1b5383 in SQLengine (c=0x649168) at sql_scenario.c:2012
14 0x00007ffff7854c36 in runPhase (c=0x649168, phase=4) at mal_scenario.c:522
15 0x00007ffff7854e1f in runScenarioBody (c=0x649168) at mal_scenario.c:566
16 0x00007ffff7854f42 in runScenario (c=0x649168) at mal_scenario.c:586
17 0x00007ffff7855fb4 in MSserveClient (dummy=0x649168) at mal_session.c:431
18 0x00007ffff4cddf3b in start_thread () from /lib64/
19 0x00007ffff4a1865d in clone () from /lib64/

Reproducible: Always

MonetDB 5 server v11.15.4 (64-bit, 64-bit oids)
This is an unreleased version
Copyright (c) 1993-July 2008 CWI
Copyright (c) August 2008-2013 MonetDB B.V., all rights reserved
Visit for further information
Found 15.6GiB available memory, 4 available cpu cores
libpcre: 8.32 2012-11-30 (compiled with 8.32)
openssl: OpenSSL 1.0.1e 11 Feb 2013 (compiled with OpenSSL 1.0.1e 11 Feb 2013)
libxml2: 2.9.0 (compiled with 2.9.0)
Compiled by: (x86_64-unknown-linux-gnu)
Compilation: gcc -g -Werror -Wall -Wextra -W -Werror-implicit-function-declaration -Wpointer-arith -Wdeclaration-after-statement -Wundef -Wformat=2 -Wno-format-nonliteral -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-format-attribute -Wmissing-prototypes -Wold-style-definition -Wpacked -Wunknown-pragmas -Wvariadic-macros -fstack-protector-all -Wstack-protector -Wpacked-bitfield-compat -Wsync-nand -Wjump-misses-init -Wmissing-include-dirs -Wlogical-op -Wunreachable-code
Linking : /usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64

Comment 18667

Date: 2013-04-03 02:16:18 +0200
From: @skinkie

I am aware that I reversed the \n and \t.

Comment 18734

Date: 2013-05-15 23:08:20 +0200
From: Joseph <>

I am seeing this, too. Every CSV I tried to bulk-load MonetDB with causes a crash. I am using the 64-bit Windows build (same release date).

Comment 18789

Date: 2013-06-07 13:35:41 +0200
From: @njnes

we need an example to be able to fix this problem. Ie ddl and update statements, including data to be loaded.

Comment 18790

Date: 2013-06-07 14:05:44 +0200
From: @skinkie

CREATE TABLE "sys"."adres" (
"openbareruimtenaam" VARCHAR(80),
"huisnummer" DECIMAL(5),
"huisletter" CHAR(1),
"huisnummertoevoeging" VARCHAR(4),
"postcode" VARCHAR(6),
"woonplaatsnaam" VARCHAR(80),
"gemeentenaam" VARCHAR(80),
"provincienaam" VARCHAR(16),
"typeadresseerbaarobject" VARCHAR(3),
"adresseerbaarobject" DECIMAL(16),
"nummeraanduiding" DECIMAL(16),

Link to the data data will fly to you in a private mail.

Comment 18792

Date: 2013-06-07 15:19:48 +0200
From: @njnes

out of bounds problem. We now properly check for this.

Comment 18795

Date: 2013-06-07 15:49:17 +0200
From: MonetDB Mercurial Repository <>

Changeset 11a7d8d94a7b made by Niels Nes in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=11a7d8d94a7b

Changeset description:

fixed bug #3269, ie out of bounds write.
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