.
Thread 1 (Thread 0x7f5f7f09e720 (LWP 5649)):
#0  0x00007f5f79c44686 in _M_data (this=0x7fff5adedb90) at /usr/include/c++/4.6/bits/basic_string.h:288
No locals.
#1  _M_rep (this=0x7fff5adedb90) at /usr/include/c++/4.6/bits/basic_string.h:296
No locals.
#2  length (this=0x7fff5adedb90) at /usr/include/c++/4.6/bits/basic_string.h:717
No locals.
#3  WriteUniqString (S=..., this=0x14) at ../build/include/apt-pkg/pkgcachegen.h:85
No locals.
#4  WriteUniqString (S=..., this=<optimized out>) at ../build/include/apt-pkg/pkgcachegen.h:125
No locals.
#5  debListParser::LoadReleaseInfo (this=0x7f5f79b665b8, FileI=..., File=<optimized out>, component=<optimized out>) at deb/deblistparser.cc:861
        len = <optimized out>
        dataEnd = <optimized out>
        lineEnd = <optimized out>
        data = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x2595608 "oneiric-updates"}}
        dataStart = 0x7fff5adedba7 "oneiric-updates\n"
        writeTo = <optimized out>
        release = 0x45f4000
        buffer = "0\000\000\000\000\000\000\000\252\254\200N\000\000\000\000\265\336+\000\000\000\000\000\000\225\036\370\200\023w\214\000\000\000\000\000\000\000\000\240e\266y_\177\000\000\340\226Y\002\000\000\000\000\340\036\351y_\177\000\000\340\346\336Z\377\177\000\000\200\346\336Z\377\177\000\000\060\347\336Z\377\177\000\000\276\332\305y_\177\000\000h\352\336Z\377"
        gpgClose = false
#6  0x00007f5f79c5ba83 in IndexFile (Type=<optimized out>, this=<optimized out>) at deb/debindexfile.cc:396
        s = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f5f79b665b8 ""}}
        sgzip = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x2599738 "Ubuntu"}}
#7  debTranslationsIndex::Exists (this=<optimized out>) at deb/debindexfile.cc:477
No locals.
#8  0x00007fff5adede40 in ?? ()
No symbol table info available.
#9  0x00000000045ff990 in ?? ()
No symbol table info available.
#10 0x00007fff5adee760 in ?? ()
No symbol table info available.
#11 0x00007fff5adeeda0 in ?? ()
No symbol table info available.
#12 0x00007f5f7dabed7c in __GI___libc_free (mem=<optimized out>) at malloc.c:3738
        ar_ptr = 0x7f5f7dddc1c0
        p = <optimized out>
        hook = <optimized out>
#13 0x00007f5f7e067e7d in destroy (s=0x45f8c10) at gzio.c:415
        err = 1524555504
#14 0x00007f5f79bbe495 in FileFd::Close (this=0x7fff5adee760) at contrib/fileutl.cc:1018
        e = <optimized out>
        Res = true
#15 0x00000000004d0380 in vgetargskeywords (args=((((((((((0x0,),),),),),),),),),), keywords=0x0, format=0x5435c1 "i:int", kwlist=0x0, p_va=0x7fff5adee148, flags=0) at ../Python/getargs.c:1618
        msgbuf = '\000' <repeats 24 times>, "\v\000\000\000\000\000\000\000\n\000\000\000\001", '\000' <repeats 11 times>"\377, \377\377\377\377\377\377\377", '\000' <repeats 16 times>"\272, \200\a~_\177\000\000\273\200\a~_\177\000\000X\343\336Z\377\177\000\000\000\000\000\000\000\000\000\000\315\327\250}_\177\000\000\271\200\a~_\177\000\000\002", '\000' <repeats 390 times>
        levels = {6, 0, 2108207056, 32607, 0, 0, 0, 0, 2045306640, 32607, 39406336, 0, 1, 0, 40026746, 0, 0, 20, 70, 504, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0}
        fname = 0x5435c3 "int"
        msg = <optimized out>
        custom_msg = <optimized out>
        keyword = <optimized out>
        min = <optimized out>
        i = <optimized out>
        len = <optimized out>
        nargs = <optimized out>
        nkeywords = <optimized out>
        freelist = 0x0
        current_arg = <optimized out>
#16 0x0000000000000000 in ?? ()
No symbol table info available.