mysql> select siteid,answer_text,count(*) as c from question_answer where question_id=40 and qa_id between 1482389 and 1582389 group by answer_text order by c desc limit 40;


*** glibc detected *** mysql: munmap_chunk(): invalid pointer: 0x00000000009bf2f0 ***
======= Backtrace: =========
/lib64/libc.so.6(cfree+0x1b6)[0x38a1072276]
mysql(rl_do_undo+0x46)[0x4240f6]
mysql(rl_revert_line+0x15)[0x424255]
mysql(readline_internal_teardown+0x5b)[0x415d1b]
mysql(readline+0x56)[0x415f76]
mysql[0x411874]
mysql(main+0x4a9)[0x413059]
/lib64/libc.so.6(__libc_start_main+0xf4)[0x38a101da44]
mysql[0x40c1d9]
======= Memory map: ========
00400000-00438000 r-xp 00000000 fd:00 47686708  /usr/bin/mysql
00638000-00641000 rw-p 00038000 fd:00 47686708  /usr/bin/mysql
00641000-00643000 rw-p 00641000 00:00 0
00840000-00844000 rw-p 00040000 fd:00 47686708  /usr/bin/mysql
00844000-00b44000 rw-p 00844000 00:00 0  [heap]
3221800000-3221882000 r-xp 00000000 fd:00 44400641  /lib64/libm-2.5.so
3221882000-3221a81000 ---p 00082000 fd:00 44400641  /lib64/libm-2.5.so
3221a81000-3221a82000 r--p 00081000 fd:00 44400641  /lib64/libm-2.5.so
3221a82000-3221a83000 rw-p 00082000 fd:00 44400641  /lib64/libm-2.5.so
3222800000-3222814000 r-xp 00000000 fd:00 44400642  /lib64/libnsl-2.5.so
3222814000-3222a13000 ---p 00014000 fd:00 44400642  /lib64/libnsl-2.5.so
3222a13000-3222a14000 r--p 00013000 fd:00 44400642  /lib64/libnsl-2.5.so
3222a14000-3222a15000 rw-p 00014000 fd:00 44400642  /lib64/libnsl-2.5.so
3222a15000-3222a17000 rw-p 3222a15000 00:00 0
38a0c00000-38a0c1a000 r-xp 00000000 fd:00 37257221  /lib64/ld-2.5.so
38a0e19000-38a0e1a000 r--p 00019000 fd:00 37257221  /lib64/ld-2.5.so
38a0e1a000-38a0e1b000 rw-p 0001a000 fd:00 37257221  /lib64/ld-2.5.so
38a1000000-38a1144000 r-xp 00000000 fd:00 37257228  /lib64/libc-2.5.so
38a1144000-38a1344000 ---p 00144000 fd:00 37257228  /lib64/libc-2.5.so
38a1344000-38a1348000 r--p 00144000 fd:00 37257228  /lib64/libc-2.5.so
38a1348000-38a1349000 rw-p 00148000 fd:00 37257228  /lib64/libc-2.5.so
38a1349000-38a134e000 rw-p 38a1349000 00:00 0
38a1400000-38a1403000 r-xp 00000000 fd:00 37257244  /lib64/libdl-2.5.so
38a1403000-38a1602000 ---p 00003000 fd:00 37257244  /lib64/libdl-2.5.so
38a1602000-38a1603000 r--p 00002000 fd:00 37257244  /lib64/libdl-2.5.so
38a1603000-38a1604000 rw-p 00003000 fd:00 37257244  /lib64/libdl-2.5.so
38a2400000-38a2414000 r-xp 00000000 fd:00 47682830  /usr/lib64/libz.so.1.2.3
38a2414000-38a2613000 ---p 00014000 fd:00 47682830  /usr/lib64/libz.so.1.2.3
38a2613000-38a2614000 rw-p 00013000 fd:00 47682830  /usr/lib64/libz.so.1.2.3
38a2c00000-38a2c05000 r-xp 00000000 fd:00 37257274  /lib64/libcrypt-2.5.so
38a2c05000-38a2e04000 ---p 00005000 fd:00 37257274  /lib64/libcrypt-2.5.so
38a2e04000-38a2e05000 r--p 00004000 fd:00 37257274  /lib64/libcrypt-2.5.so
38a2e05000-38a2e06000 rw-p 00005000 fd:00 37257274  /lib64/libcrypt-2.5.so
38a2e06000-38a2e34000 rw-p 38a2e06000 00:00 0
38a3000000-38a300d000 r-xp 00000000 fd:00 37257234  /lib64/libgcc_s-4.1.1-20070105.so.1
38a300d000-38a320c000 ---p 0000d000 fd:00 37257234  /lib64/libgcc_s-4.1.1-20070105.so.1
38a320c000-38a320d000 rw-p 0000c000 fd:00 37257234  /lib64/libgcc_s-4.1.1-20070105.so.1
38a3400000-38a3402000 r-xp 00000000 fd:00 37257349  /lib64/libcom_err.so.2.1
38a3402000-38a3601000 ---p 00002000 fd:00 37257349  /lib64/libcom_err.so.2.1
38a3601000-38a3602000 rw-p 00001000 fd:00 37257349  /lib64/libcom_err.so.2.1
38a3800000-38a3811000 r-xp 00000000 fd:00 37257285  /lib64/libresolv-2.5.so
38a3811000-38a3a11000 ---p 00011000 fd:00 37257285  /lib64/libresolv-2.5.so
38a3a11000-38a3a12000 r--p 00011000 fd:00 37257285  /lib64/libresolv-2.5.so
38a3a12000-38a3a13000 rw-p 00012000 fd:00 37257285  /lib64/libresolv-2.5.so
38a3a13000-38a3a15000 rw-p 38a3a13000 00:00 0
38a4000000-38a4125000 r-xp 00000000 fd:00 37257380  /lib64/libcrypto.so.0.9.8b
38a4125000-38a4324000 ---p 00125000 fd:00 37257380  /lib64/libcrypto.so.0.9.8b
38a4324000-38a4343000 rw-p 00124000 fd:00 37257380  /lib64/libcrypto.so.0.9.8b
38a4343000-38a4347000 rw-p 38a4343000 00:00 0
38a4400000-38a4407000 r-xp 00000000 fd:00 47685804  /usr/lib64/libkrb5support.so.0.1
38a4407000-38a4606000 ---p 00007000 fd:00 47685804  /usr/lib64/libkrb5support.so.0.1
38a4606000-38a4607000 rw-p 00006000 fd:00 47685804  /usr/lib64/libkrb5support.so.0.1
38a4800000-38a4829000 r-xp 00000000 fd:00 47686323  /usr/lib64/libgssapi_krb5.so.2.2
38a4829000-38a4a28000 ---p 00029000 fd:00 47686323  /usr/lib64/libgssapi_krb5.so.2.2
38a4a28000-38a4a2a000 rw-p 00028000 fd:00 47686323  /usr/lib64/libgssapi_krb5.so.2.2
38a5000000-38a5083000 r-xp 00000000 fd:00 47686290  /usr/lib64/libkrb5.so.3.2
38a5083000-38a5283000 ---p 00083000 fd:00 47686290  /usr/lib64/libkrb5.so.3.2
38a5283000-38a5287000 rw-p 00083000 fd:00 47686290  /usr/lib64/libkrb5.so.3.2
38a5400000-38a5423000 r-xp 00000000 fd:00 47686050  /usr/lib64/libk5crypto.so.3.0
38a5423000-38a5623000 ---p 00023000 fd:00 47686050  /usr/lib64/libk5crypto.so.3.0
38a5623000-38a5625000 rw-p 00023000 fd:00 47686050  /usr/lib64/libk5crypto.so.3.0
38a5800000-38a5843000 r-xp 00000000 fd:00 37257383  /lib64/libssl.so.0.9.8b
38a5843000-38a5a43000 ---p 00043000 fd:00 37257383  /lib64/libssl.so.0.9.8b
38a5a43000-38a5a49000 rw-p 00043000 fd:00 37257383  /lib64/libssl.so.0.9.8b
38a5c00000-38a5c4f000 r-xp 00000000 fd:00 47681806  /usr/lib64/libncurses.so.5.5
38a5c4f000-38a5e4e000 ---p 0004f000 fd:00 47681806  /usr/lib64/libncurses.so.5.5
38a5e4e000-38a5e5c000 rw-p 0004e000 fd:00 47681806  /usr/lib64/libncurses.so.5.5
38a5e5c000-38a5e5d000 rw-p 38a5e5c000 00:00 0
3a4fe00000-3a4fee6000 r-xp 00000000 fd:00 47688313  /usr/lib64/libstdc++.so.6.0.8
3a4fee6000-3a500e5000 ---p 000e6000 fd:00 47688313  /usr/lib64/libstdc++.so.6.0.8
3a500e5000-3a500eb000 r--p 000e5000 fd:00 47688313  /usr/lib64/libstdc++.so.6.0.8
3a500eb000-3a500ee000 rw-p 000eb000 fd:00 47688313  /usr/lib64/libstdc++.so.6.0.8
3a500ee000-3a50100000 rw-p 3a500ee000 00:00 0
3a50200000-3a50328000 r-xp 00000000 fd:00 47972362  /usr/lib64/mysql/libmysqlclient.so.15.0.0
3a50328000-3a50528000 ---p 00128000 fd:00 47972362  /usr/lib64/mysql/libmysqlclient.so.15.0.0
3a50528000-3a5056f000 rw-p 00128000 fd:00 47972362  /usr/lib64/mysql/libmysqlclient.so.15.0.0
3a5056f000-3a50570000 rw-p 3a5056f000 00:00 0
2aaaaaaab000-2aaaaaaad000 rw-p 2aaaaaaab000 00:00 0
2aaaaaab4000-2aaaaaabc000 rw-p 2aaaaaab4000 00:00 0
2aaaaaabc000-2aaaaaac6000 r-xp 00000000 fd:00 37257243  /lib64/libnss_files-2.5.so
2aaaaaac6000-2aaaaacc5000 ---p 0000a000 fd:00 37257243  /lib64/libnss_files-2.5.so
2aaaaacc5000-2aaaaacc6000 r--p 00009000 fd:00 37257243  /lib64/libnss_files-2.5.so
2aaaaacc6000-2aaaaacc7000 rw-p 0000a000 fd:00 37257243  /lib64/libnss_files-2.5.so
2aaaaacc7000-2aaaae1c6000 r--p 00000000 fd:00 47688964  /usr/lib/locale/locale-archive
2aaaae1c6000-2aaaae1cd000 r--s 00000000 fd:00 47743808  /usr/lib64/gconv/gconv-modules.cache
7fffe608c000-7fffe60a2000 rw-p 7fffe608c000 00:00 0  [stack]
ffffffffff600000-ffffffffffe00000 ---p 00000000 00:00 0  [vdso]
Aborted