Further testing (trying to purge packages with aptitude): sudo aptitude *** glibc detected *** aptitude: free(): invalid pointer: 0xb39032b8 *** ======= Backtrace: ========= /lib/tls/i686/cmov/libc.so.6[0x62af81] /lib/tls/i686/cmov/libc.so.6[0x62c7d0] /lib/tls/i686/cmov/libc.so.6(cfree+0x6d)[0x62f81d] /usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0x4dc311] /usr/lib/libstdc++.so.6(_ZdaPv+0x1d)[0x4dc36d] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList8CheckDepEN8pkgCache11DepIteratorE+0x142)[0x18bc12] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList9DepRemoveEN8pkgCache11DepIteratorE+0xb6)[0x18cf56] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList10VisitRDepsEMS_FbN8pkgCache11DepIteratorEENS0_11PkgIteratorE+0x61)[0x18b721] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList9VisitNodeEN8pkgCache11PkgIteratorE+0x71f)[0x18cd4f] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList5DoRunEv+0xd5)[0x18df25] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN12pkgOrderList11OrderUnpackEPSs+0x142)[0x18e562] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN17pkgPackageManager12OrderInstallEv+0x29a)[0x1955aa] /usr/lib/libapt-pkg-libc6.10-6.so.4.8(_ZN17pkgPackageManager9DoInstallEi+0x21)[0x192881] aptitude[0x8180352] aptitude[0x8180882] aptitude[0x810d30c] aptitude[0x808cdcb] /usr/lib/libcwidget.so.3(_ZN7cwidget8toplevel8mainloopEi+0x1f1)[0x9eb121] aptitude[0x80f1113] aptitude[0x805e67b] /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0x5d6b66] aptitude[0x805c691] ======= Memory map: ======== 00110000-00125000 r-xp 00000000 08:05 40553 /lib/tls/i686/cmov/libpthread-2.10.2.so 00125000-00126000 r--p 00014000 08:05 40553 /lib/tls/i686/cmov/libpthread-2.10.2.so 00126000-00127000 rw-p 00015000 08:05 40553 /lib/tls/i686/cmov/libpthread-2.10.2.so 00127000-00129000 rw-p 00000000 00:00 0 00129000-00145000 r-xp 00000000 08:05 14252 /lib/libgcc_s.so.1 00145000-00146000 r--p 0001b000 08:05 14252 /lib/libgcc_s.so.1 00146000-00147000 rw-p 0001c000 08:05 14252 /lib/libgcc_s.so.1 00147000-00149000 r-xp 00000000 08:05 40575 /lib/tls/i686/cmov/libutil-2.10.2.so 00149000-0014a000 r--p 00001000 08:05 40575 /lib/tls/i686/cmov/libutil-2.10.2.so 0014a000-0014b000 rw-p 00002000 08:05 40575 /lib/tls/i686/cmov/libutil-2.10.2.so 0014d000-00210000 r-xp 00000000 08:05 18143 /usr/lib/libapt-pkg-libc6.10-6.so.4.8.0 00210000-00212000 r--p 000c2000 08:05 18143 /usr/lib/libapt-pkg-libc6.10-6.so.4.8.0 00212000-00213000 rw-p 000c4000 08:05 18143 /usr/lib/libapt-pkg-libc6.10-6.so.4.8.0 00213000-00253000 r-xp 00000000 08:05 43246 /lib/libncursesw.so.5.7 00253000-00255000 r--p 00040000 08:05 43246 /lib/libncursesw.so.5.7 00255000-00256000 rw-p 00042000 08:05 43246 /lib/libncursesw.so.5.7 00256000-002c5000 r-xp 00000000 08:05 4048 /usr/lib/libept.so.0.5.29 002c5000-002c6000 r--p 0006e000 08:05 4048 /usr/lib/libept.so.0.5.29 002c6000-002c7000 rw-p 0006f000 08:05 4048 /usr/lib/libept.so.0.5.29 002c7000-0040c000 r-xp 00000000 08:05 2876 /usr/lib/libxapian.so.15.6.8 0040c000-0040f000 r--p 00144000 08:05 2876 /usr/lib/libxapian.so.15.6.8 0040f000-00410000 rw-p 00147000 08:05 2876 /usr/lib/libxapian.so.15.6.8 00410000-00412000 r-xp 00000000 08:05 39541 /lib/tls/i686/cmov/libdl-2.10.2.so 00412000-00413000 r--p 00001000 08:05 39541 /lib/tls/i686/cmov/libdl-2.10.2.so 00413000-00414000 rw-p 00002000 08:05 39541 /lib/tls/i686/cmov/libdl-2.10.2.so 00424000-0050a000 r-xp 00000000 08:05 8822 /usr/lib/libstdc++.so.6.0.13 0050a000-0050b000 ---p 000e6000 08:05 8822 /usr/lib/libstdc++.so.6.0.13 0050b000-0050f000 r--p 000e6000 08:05 8822 /usr/lib/libstdc++.so.6.0.13 0050f000-00510000 rw-p 000ea000 08:05 8822 /usr/lib/libstdc++.so.6.0.13 00510000-00517000 rw-p 00000000 00:00 0 00517000-0052a000 r-xp 00000000 08:05 40509 /lib/tls/i686/cmov/libnsl-2.10.2.so 0052a000-0052b000 r--p 00012000 08:05 40509 /lib/tls/i686/cmov/libnsl-2.10.2.so 0052b000-0052c000 rw-p 00013000 08:05 40509 /lib/tls/i686/cmov/libnsl-2.10.2.so 0052c000-0052e000 rw-p 00000000 00:00 0 005a3000-005be000 r-xp 00000000 08:05 14970 /lib/ld-2.10.2.so 005be000-005bf000 r--p 0001a000 08:05 14970 /lib/ld-2.10.2.so 005bf000-005c0000 rw-p 0001b000 08:05 14970 /lib/ld-2.10.2.so 005c0000-006fe000 r-xp 00000000 08:05 14858 /lib/tls/i686/cmov/libc-2.10.2.so 006fe000-00700000 r--p 0013e000 08:05 14858 /lib/tls/i686/cmov/libc-2.10.2.so 00700000-00701000 rw-p 00140000 08:05 14858 /lib/tls/i686/cmov/libc-2.10.2.so 00701000-00704000 rw-p 00000000 00:00 0 0093b000-0094e000 r-xp 00000000 08:05 22579 /lib/libz.so.1.2.3.3 0094e000-0094f000 r--p 00012000 08:05 22579 /lib/libz.so.1.2.3.3 0094f000-00950000 rw-p 00013000 08:05 22579 /lib/libz.so.1.2.3.3 009ae000-00a67000 r-xp 00000000 08:05 4035 /usr/lib/libcwidget.so.3.0.0 00a67000-00a68000 ---p 000b9000 08:05 4035 /usr/lib/libcwidget.so.3.0.0 00a68000-00a6b000 r--p 000b9000 08:05 4035 /usr/lib/libcwidget.so.3.0.0 00a6b000-00a6c000 rw-p 000bc000 08:05 4035 /usr/lib/libcwidget.so.3.0.0 00aab000-00ab4000 r-xp 00000000 08:05 40545 /lib/tls/i686/cmov/libnss_nis-2.10.2.so 00ab4000-00ab5000 r--p 00008000 08:05 40545 /lib/tls/i686/cmov/libnss_nis-2.10.2.so 00ab5000-00ab6000 rw-p 00009000 08:05 40545 /lib/tls/i686/cmov/libnss_nis-2.10.2.so 00b74000-00b75000 r-xp 00000000 00:00 0 [vdso] 00bbe000-00bc8000 r-xp 00000000 08:05 40531 /lib/tls/i686/cmov/libnss_files-2.10.2.so 00bc8000-00bc9000 r--p 00009000 08:05 40531 /lib/tls/i686/cmov/libnss_files-2.10.2.so 00bc9000-00bca000 rw-p 0000a000 08:05 40531 /lib/tls/i686/cmov/libnss_files-2.10.2.so 00beb000-00bf1000 r-xp 00000000 08:05 40510 /lib/tls/i686/cmov/libnss_compat-2.10.2.so 00bf1000-00bf2000 r--p 00005000 08:05 40510 /lib/tls/i686/cmov/libnss_compat-2.10.2.so 00bf2000-00bf3000 rw-p 00006000 08:05 40510 /lib/tls/i686/cmov/libnss_compat-2.10.2.so 00f43000-00f67000 r-xp 00000000 08:05 39554 /lib/tls/i686/cmov/libm-2.10.2.so 00f67000-00f68000 r--p 00023000 08:05 39554 /lib/tls/i686/cmov/libm-2.10.2.so 00f68000-00f69000 rw-p 00024000 08:05 39554 /lib/tls/i686/cmov/libm-2.10.2.so 00f83000-00f88000 r-xp 00000000 08:05 10201 /usr/lib/libsigc-2.0.so.0.0.0 00f88000-00f89000 r--p 00004000 08:05 10201 /usr/lib/libsigc-2.0.so.0.0.0 00f89000-00f8a000 rw-p 00005000 08:05 10201 /usr/lib/libsigc-2.0.so.0.0.0 08048000-0824e000 r-xp 00000000 08:05 20380 /usr/bin/aptitude 0824e000-0824f000 r--p 00205000 08:05 20380 /usr/bin/aptitude 0824f000-08250000 rw-p 00206000 08:05 20380 /usr/bin/aptitude 08250000-08252000 rw-p 00000000 00:00 0 08bae000-098d7000 rw-p 00000000 00:00 0 [heap] b2a00000-b2a46000 rw-p 00000000 00:00 0 b2a46000-b2b00000 ---p 00000000 00:00 0 b2c00000-b2ce2000 rw-p 00000000 00:00 0 b2ce2000-b2d00000 ---p 00000000 00:00 0 b2d45000-b2e00000 rw-p 00000000 00:00 0 b2e00000-b3000000 rw-p 00000000 00:00 0 b3000000-b3200000 rw-p 00000000 00:00 0 b3200000-b3400000 rw-p 00000000 00:00 0 b3400000-b3600000 rw-p 00000000 00:00 0 b3600000-b3700000 rw-p 00000000 00:00 0 b3700000-b3800000 rw-p 00000000 00:00 0 b381c000-b3900000 rw-p 00000000 00:00 0 b3900000-b39fc000 rw-p 00000000 00:00 0 b39fc000-b3a00000 ---p 00000000 00:00 0 b3ab2000-b3ab3000 ---p 00000000 00:00 0 b3ab3000-b42b3000 rw-p 00000000 00:00 0 b42b3000-b42b4000 ---p 00000000 00:00 0 b42b4000-b4ab4000 rw-p 00000000 00:00 0 b4c00000-b5000000 rw-p 00000000 00:00 0 b5000000-b50fe000 rw-p 00000000 00:00 0 b50fe000-b5100000 ---p 00000000 00:00 0 b514b000-b5255000 rw-p 00000000 00:00 0 Ouch! Got SIGABRT, dying..0000 08:05 63 /var/cache/apt/pkgcache.bin Aborted