It appears this is not quite fixed yet, I managed to get a backtrace
now:
(gdb) bt full
#0 __strlen_sse2 () at ../sysdeps/x86_64/multiarch/../strlen.S:32
No locals.
#1 0x00007ffff556ee21 in std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::compare(char const*) const ()
from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#2 0x00007ffff7b4b1eb in operator==<char, std::char_traits<char>,
std::allocator<char> > (this=0x7fffffffc310, Progress=<value optimised out>)
at /usr/include/c++/4.6/bits/basic_string.h:2462
No locals.
#3 pkgCacheGenerator::FinishCache (this=0x7fffffffc310,
Progress=<value optimised out>) at pkgcachegen.cc:649
D = <incomplete type>
A = {_M_current = 0x907978}
Arch = 0x7fffe622e3c8 <Address 0x7fffe622e3c8 out of bounds>
OldDepLast = 0x7fffea7c9a70
coInstall = false
allPkg = <incomplete type>
V = {<pkgCache::Iterator<pkgCache::Version, pkgCache::VerIterator>> =
{<std::iterator<std::forward_iterator_tag, pkgCache::Version, long,
pkgCache::Version*, pkgCache::Version&>> = {<No data fields>}, _vptr.Iterator =
0x49d390,
S = 0x7fffe90d9998, Owner = 0x7fffffffc3e8}, <No data fields>}
PkgName = {static npos = <optimized out>,
_M_dataplus = {<std::allocator<char>> =
{<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p
= 0x16a02b8 "gromit"}}
P = {<pkgCache::Iterator<pkgCache::Package, pkgCache::PkgIterator>> =
{<std::iterator<std::forward_iterator_tag, pkgCache::Package, long,
pkgCache::Package*, pkgCache::Package&>> = {<No data fields>}, _vptr.Iterator =
0x6bb090,
S = 0x7fffe8daafb8, Owner = 0x7fffffffc3e8}, HashIndex = 0}
G = {<pkgCache::Iterator<pkgCache::Group, pkgCache::GrpIterator>> =
{<std::iterator<std::forward_iterator_tag, pkgCache::Group, long,
pkgCache::Group*, pkgCache::Group&>> = {<No data fields>}, _vptr.Iterator =
0x7ffff7dd5ef0,
S = 0x7fffe8d93204, Owner = 0x7fffffffc3e8}, HashIndex = 1646}
archs = {<std::_Vector_base<std::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::basic_string<char, std::char_traits<char>,
std::allocator<char> > > >> = {
_M_impl = {<std::allocator<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >> =
{<__gnu_cxx::new_allocator<std::basic_string<char, std::char_traits<char>,
std::allocator<char> > >> = {<No data fields>}, <No data fields>}, _M_start =
0x907970, _M_finish = 0x907980,
_M_end_of_storage = 0x907980}}, <No data fields>}
#4 0x00007ffff7b4d239 in pkgCacheGenerator::MakeStatusCache (
List=<value optimised out>, Progress=0x8f6e50, OutMap=0x0, AllowMem=224)
at pkgcachegen.cc:1291
Gen = {UniqHash = {0x7fffe88d43d8, 0x7fffe88d43b0, 0x0,
0x7fffe88d4408, 0x7fffe88d43c8, 0x7fffe88d4478, 0x0,
0x7fffe88d4498, 0x7fffe88d4ec0, 0x0, 0x7fffe88d43f0,
0x7fffe88d43f8, 0x7fffe88d4868, 0x7fffe88d43b8, 0x7fffe88d43d0,
0x7fffe88d4ec8, 0x7fffe88d4e78, 0x0, 0x7fffe88d4400,
0x7fffe88d44b8, 0x7fffe88d43a8, 0x7fffe88d4430, 0x7fffe88d43a0,
0x7fffe88d44a0, 0x7fffe88d4450, 0x7fffe88d4428}, Map = @0xc25db0,
Cache = {_vptr.pkgCache = 0x7ffff7dd5eb0, CacheFile = {
static npos = <optimized out>,
_M_dataplus = {<std::allocator<char>> =
{<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p
= 0x6ba858 ""}},
Map = @0xc25db0, HeaderP = 0x7fffe88cb000, GrpP = 0x7fffe88cb000,
PkgP = 0x7fffe88cb000, VerFileP = 0x7fffe88cb000,
DescFileP = 0x7fffe88cb000, PkgFileP = 0x7fffe88cb000,
VerP = 0x7fffe88cb000, DescP = 0x7fffe88cb000,
ProvideP = 0x7fffe88cb000, DepP = 0x7fffe88cb000,
And it turns out that
(gdb) frame 3
#3 pkgCacheGenerator::FinishCache (this=0x7fffffffc310,
Progress=<value optimised out>) at pkgcachegen.cc:649
649 if (Arch == 0 || *A == Arch)
(gdb) print Arch
$1 = 0x7fffe622e3c8 <Address 0x7fffe622e3c8 out of bounds>
is the problem.
** Changed in: apt (Ubuntu)
Status: Fix Released => Triaged
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https://bugs.launchpad.net/bugs/812862
Title:
aptd crashed with SIGSEGV in std::basic_string<char,
std::char_traits<char>, std::allocator<char> >::compare() --
__strlen_sse42 () at ../sysdeps/x86_64/multiarch/strlen-sse4.S:32
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