Comment 10 for bug 515525

experiencing same issue when running 'sudo aptitude update':

*** glibc detected *** aptitude: free(): invalid next size (fast): 0x0000000001c03280 ***
======= Backtrace: =========
/lib/libc.so.6(+0x77406)[0x7f9ba2667406]
/lib/libc.so.6(cfree+0x73)[0x7f9ba266dc93]
aptitude[0x526aa9]
aptitude[0x5459ed]
aptitude[0x542fb7]
aptitude[0x506297]
aptitude[0x501f1d]
aptitude[0x41bb76]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f9ba260ec4d]
aptitude[0x419619]
======= Memory map: ========
00400000-00626000 r-xp 00000000 08:07 424680 /usr/bin/aptitude
00825000-00826000 r--p 00225000 08:07 424680 /usr/bin/aptitude
00826000-00828000 rw-p 00226000 08:07 424680 /usr/bin/aptitude
00828000-0082c000 rw-p 00000000 00:00 0
0189c000-01cb4000 rw-p 00000000 00:00 0 [heap]
7f9b98000000-7f9b98021000 rw-p 00000000 00:00 0
7f9b98021000-7f9b9c000000 ---p 00000000 00:00 0
7f9b9f684000-7f9b9f685000 rw-p 00000000 00:00 0
7f9b9f685000-7f9b9f686000 ---p 00000000 00:00 0
7f9b9f686000-7f9ba0b3c000 rw-p 00000000 00:00 0
7f9ba0b3c000-7f9ba18c1000 rw-p 00000000 08:07 897700 /var/cache/apt/pkgcache.bin
7f9ba18c1000-7f9ba18cd000 r-xp 00000000 08:07 498806 /lib/libnss_files-2.11.1.so
7f9ba18cd000-7f9ba1acc000 ---p 0000c000 08:07 498806 /lib/libnss_files-2.11.1.so
7f9ba1acc000-7f9ba1acd000 r--p 0000b000 08:07 498806 /lib/libnss_files-2.11.1.so
7f9ba1acd000-7f9ba1ace000 rw-p 0000c000 08:07 498806 /lib/libnss_files-2.11.1.so
7f9ba1ace000-7f9ba1ad8000 r-xp 00000000 08:07 498808 /lib/libnss_nis-2.11.1.so
7f9ba1ad8000-7f9ba1cd7000 ---p 0000a000 08:07 498808 /lib/libnss_nis-2.11.1.so
7f9ba1cd7000-7f9ba1cd8000 r--p 00009000 08:07 498808 /lib/libnss_nis-2.11.1.so
7f9ba1cd8000-7f9ba1cd9000 rw-p 0000a000 08:07 498808 /lib/libnss_nis-2.11.1.so
7f9ba1cd9000-7f9ba1cf0000 r-xp 00000000 08:07 498801 /lib/libnsl-2.11.1.so
7f9ba1cf0000-7f9ba1eef000 ---p 00017000 08:07 498801 /lib/libnsl-2.11.1.so
7f9ba1eef000-7f9ba1ef0000 r--p 00016000 08:07 498801 /lib/libnsl-2.11.1.so
7f9ba1ef0000-7f9ba1ef1000 rw-p 00017000 08:07 498801 /lib/libnsl-2.11.1.so
7f9ba1ef1000-7f9ba1ef3000 rw-p 00000000 00:00 0
7f9ba1ef3000-7f9ba1efb000 r-xp 00000000 08:07 498802 /lib/libnss_compat-2.11.1.so
7f9ba1efb000-7f9ba20fa000 ---p 00008000 08:07 498802 /lib/libnss_compat-2.11.1.so
7f9ba20fa000-7f9ba20fb000 r--p 00007000 08:07 498802 /lib/libnss_compat-2.11.1.so
7f9ba20fb000-7f9ba20fc000 rw-p 00008000 08:07 498802 /lib/libnss_compat-2.11.1.so
7f9ba20fc000-7f9ba21e9000 r--p 00000000 08:07 532868 /usr/lib/locale/nl_NL.utf8/LC_COLLATE
7f9ba21e9000-7f9ba21eb000 r-xp 00000000 08:07 498798 /lib/libdl-2.11.1.so
7f9ba21eb000-7f9ba23eb000 ---p 00002000 08:07 498798 /lib/libdl-2.11.1.so
7f9ba23eb000-7f9ba23ec000 r--p 00002000 08:07 498798 /lib/libdl-2.11.1.so
7f9ba23ec000-7f9ba23ed000 rw-p 00003000 08:07 498798 /lib/libdl-2.11.1.so
7f9ba23ed000-7f9ba23ef000 r-xp 00000000 08:07 498827 /lib/libutil-2.11.1.so
7f9ba23ef000-7f9ba25ee000 ---p 00002000 08:07 498827 /lib/libutil-2.11.1.so
7f9ba25ee000-7f9ba25ef000 r--p 00001000 08:07 498827 /lib/libutil-2.11.1.so
7f9ba25ef000-7f9ba25f0000 rw-p 00002000 08:07 498827 /lib/libutil-2.11.1.so
7f9ba25f0000-7f9ba2768000 r-xp 00000000 08:07 498661 /lib/libc-2.11.1.so
7f9ba2768000-7f9ba2967000 ---p 00178000 08:07 498661 /lib/libc-2.11.1.so
7f9ba2967000-7f9ba296b000 r--p 00177000 08:07 498661 /lib/libc-2.11.1.so
7f9ba296b000-7f9ba296c000 rw-p 0017b000 08:07 498661 /lib/libc-2.11.1.so
7f9ba296c000-7f9ba2971000 rw-p 00000000 00:00 0
7f9ba2971000-7f9ba2987000 r-xp 00000000 08:07 498829 /lib/libgcc_s.so.1
7f9ba2987000-7f9ba2b86000 ---p 00016000 08:07 498829 /lib/libgcc_s.so.1
7f9ba2b86000-7f9ba2b87000 r--p 00015000 08:07 498829 /lib/libgcc_s.so.1
7f9ba2b87000-7f9ba2b88000 rw-p 00016000 08:07 498829 /lib/libgcc_s.so.1
7f9ba2b88000-7f9ba2c0a000 r-xp 00000000 08:07 498799 /lib/libm-2.11.1.so
7f9ba2c0a000-7f9ba2e09000 ---p 00082000 08:07 498799 /lib/libm-2.11.1.so
7f9ba2e09000-7f9ba2e0a000 r--p 00081000 08:07 498799 /lib/libm-2.11.1.so
7f9ba2e0a000-7f9ba2e0b000 rw-p 00082000 08:07 498799 /lib/libm-2.11.1.so
7f9ba2e0b000-7f9ba2f01000 r-xp 00000000 08:07 425509 /usr/lib/libstdc++.so.6.0.13
7f9ba2f01000-7f9ba3101000 ---p 000f6000 08:07 425509 /usr/lib/libstdc++.so.6.0.13
7f9ba3101000-7f9ba3108000 r--p 000f6000 08:07 425509 /usr/lib/libstdc++.so.6.0.13
7f9ba3108000-7f9ba310a000 rw-p 000fd000 08:07 425509 /usr/lib/libstdc++.so.6.0.13
7f9ba310a000-7f9ba311f000 rw-p 00000000 00:00 0
7f9ba311f000-7f9ba3137000 r-xp 00000000 08:07 498822 /lib/libpthread-2.11.1.so
7f9ba3137000-7f9ba3336000 ---p 00018000 08:07 498822 /lib/libpthread-2.11.1.so
7f9ba3336000-7f9ba3337000 r--p 00017000 08:07 498822 /lib/libpthread-2.11.1.so
7f9ba3337000-7f9ba3338000 rw-p 00018000 08:07 498822 /lib/libpthread-2.11.1.so
7f9ba3338000-7f9ba333c000 rw-p 00000000 00:00 0
7f9ba333c000-7f9ba3352000 r-xp 00000000 08:07 285722 /lib/libz.so.1.2.3.3
7f9ba3352000-7f9ba3551000 ---p 00016000 08:07 285722 /lib/libz.so.1.2.3.3
7f9ba3551000-7f9ba3552000 r--p 00015000 08:07 285722 /lib/libz.so.1.2.3.3
7f9ba3552000-7f9ba3553000 rw-p 00016000 08:07 285722 /lib/libz.so.1.2.3.3
7f9ba3553000-7f9ba3696000 r-xp 00000000 08:07 236717 /usr/lib/libxapian.so.15.6.8
7f9ba3696000-7f9ba3895000 ---p 00143000 08:07 236717 /usr/lib/libxapian.so.15.6.8Afgebroken (geheugendump gemaakt)

Ubuntu lucid (development branch) \n \l
Linux cd-a03-5 2.6.32-14-generic #20-Ubuntu SMP Sat Feb 20 05:18:19 UTC 2010 x86_64 GNU/Linux

aptitude:
  Geïnstalleerd: 0.4.11.11-1ubuntu9
  Kandidaat: 0.4.11.11-1ubuntu9
  Versietabel:
 *** 0.4.11.11-1ubuntu9 0
        500 http://nl.archive.ubuntu.com lucid/main Packages
        100 /var/lib/dpkg/status