Hi, Recently I has a problem when running TPCH with MonetDB. Follows are the configuration. Hardware:amd64 OS:Linux MonetDB Version:Oct2010 I loaded 100G' data to the MonetDB.Using TPCH Tester tools,I runned power test.After power test successed,running throughput test. There is an error. ERR TPCH[17170]: *** glibc detected *** /mnt/sdb1/tpch/MonetDB/install/bin/mserver5: free(): invalid pointer: 0x00002ac5381b5008 *** 2011-01-04 14:00:41 ERR TPCH[17170]: ======= Backtrace: ========= 2011-01-04 14:00:41 ERR TPCH[17170]: /lib64/libc.so.6[0x3aa5c71ce2] 2011-01-04 14:00:41 ERR TPCH[17170]: /lib64/libc.so.6(cfree+0x8c)[0x3aa5c7590c] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libbat.so.1[0x2b67e8c062f6] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libbat.so.1(HEAPfree+0xb9)[0x2b67e8b36511] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libbat.so.1(BATdelete+0x196)[0x2b67e8e1769a] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libbat.so.1[0x2b67e8b33697] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libbat.so.1[0x2b67e8b32fa8] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libmonetdb5.so.5[0x2b67e7f1da68] 2011-01-04 14:00:41 ERR TPCH[17170]: /mnt/sdb1/tpch/MonetDB/install/lib/libmonetdb5.so.5[0x2b67e7f1f6f1] 2011-01-04 14:00:41 ERR TPCH[17170]: /lib64/libpthread.so.0[0x3aa6806367] 2011-01-04 14:00:41 ERR TPCH[17170]: /lib64/libc.so.6(clone+0x6d)[0x3aa5cd30ad] 2011-01-04 14:00:41 ERR TPCH[17170]: ======= Memory map: ======== 2011-01-04 14:00:41 ERR TPCH[17170]: 00400000-00404000 r-xp 00000000 08:11 179159655 /mnt/sdb1/tpch/MonetDB/install/bin/mserver5 2011-01-04 14:00:41 ERR TPCH[17170]: 00604000-00605000 rw-p 00004000 08:11 179159655 /mnt/sdb1/tpch/MonetDB/install/bin/mserver5 2011-01-04 14:00:41 ERR TPCH[17170]: 00605000-00612000 rw-p 00605000 00:00 0 2011-01-04 14:00:41 ERR TPCH[17170]: 0a03f000-0e488000 rw-p 0a03f000 00:00 0 [heap] 2011-01-04 14:00:41 ERR TPCH[17170]: 4001c000-4001d000 ---p 4001c000 00:00 0 2011-01-04 14:00:41 ERR TPCH[17170]: 4001d000-4021d000 rw-p 4001d000 00:00 0 2011-01-04 14:00:41 ERR TPCH[17170]: 40287000-40288000 ---p 40287000 00:00 0 … 2011-01-04 14:00:41 ERR TPCH[17170]: 4bc66000-4be66000 rw-p 4bc66000 00:00 0 2011-01-04 14:00:41 ERR TPCH[17170]: 3aa5800000-3aa581c000 r-xp 00000000 fd:00 95158276 /lib64/ld-2.5.so 2011-01-04 14:00:41 ERR TPCH[17170]: 3aa5a1b000-3aa5a1c000 r--p 0001b000 fd:00 95158276 /lib64/ld-2.5.so 2011-01-04 14:00:41 ERR TPCH[17170]: 3aa5a1c000-3aa5a1d000 rw-p 0001c000 fd:00 95158276 /lib64/ld-2.5.so 2011-01-04 14:00:41 ERR TPCH[17170]: 3aa5c00000-3aa5d4c000 r-xp 00000000 fd:00 95158283 /lib64/libc-2.5.so 2011-01-04 14:00:41 ERR TPCH[17170]: 3aa5d4c000-3aa5f4c000 ---p 0014c000 fd:00 95158283 /lib64/libc-2.5.so The test data are correct. Do you know the reason above errors? I hope to have a letter from you before long.With every good wish. Yours sincerely， Binge Jin