[Bug 812862] Re: 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

[Jean-Baptiste Lallement]

** Package changed: aptdaemon (Ubuntu) => apt (Ubuntu)

** Changed in: apt (Ubuntu)
   Importance: Medium => High

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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

Status in “apt” package in Ubuntu:
  Confirmed

Bug description:
  After doing a daily upgrade, update-manager crashes. The upgrade itself seems to have gone fine.
  After the crash (it has been happening before), I noticed there seem to be temporary files left in /var/cache/apt:

  albert at saturnus:~$ ls -la /var/cache/apt/
  total 334264
  drwxr-xr-x  4 root root     4096 2011-07-19 13:51 .
  drwxr-xr-x 19 root root     4096 2011-07-09 00:00 ..
  drwxr-xr-x  2 root root     4096 2010-05-27 12:28 apt-file
  drwxr-xr-x  3 root root   253952 2011-07-19 13:51 archives
  -rw-r--r--  1 root root 39573952 2011-07-19 13:51 pkgcache.bin
  -rw-r--r--  1 root root 38797312 2011-07-19 13:51 pkgcache.bin.7mO3jw
  -rw-r--r--  1 root root 38797312 2011-07-09 00:49 pkgcache.bin.FG1qwN
  -rw-r--r--  1 root root 38797312 2011-07-13 11:29 pkgcache.bin.Km58oV
  -rw-r--r--  1 root root 38797312 2011-07-17 15:25 pkgcache.bin.KPvCey
  -rw-r--r--  1 root root 38797312 2011-07-15 18:47 pkgcache.bin.PxOREy
  -rw-r--r--  1 root root 39845888 2011-07-12 17:32 pkgcache.bin.R455IS
  -rw-r--r--  1 root root 38797312 2011-07-08 18:47 pkgcache.bin.ucU3js
  -rw-r--r--  1 root root 37445119 2011-07-19 13:48 srcpkgcache.bin

  If it matters, I have multi-arch enabled, with foreign-architecture
  i386 in /etc/dpkg/dpkg.cfg

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: aptdaemon 0.43+bzr662-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-5.6-generic 3.0.0-rc7
  Uname: Linux 3.0.0-5-generic x86_64
  Architecture: amd64
  CrashCounter: 1
  Date: Tue Jul 19 13:51:34 2011
  ExecutablePath: /usr/sbin/aptd
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/sbin/aptd
  ProcEnviron:
   
  SegvAnalysis:
   Segfault happened at: 0x7f07af9f17bf:	pcmpeqb (%rdi),%xmm1
   PC (0x7f07af9f17bf) ok
   source "(%rdi)" (0x7f07a88905f0) not located in a known VMA region (needed readable region)!
   destination "%xmm1" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: aptdaemon
  StacktraceTop:
   ?? () from /lib/x86_64-linux-gnu/libc.so.6
   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
   pkgCacheGenerator::FinishCache(OpProgress*) () from /usr/lib/libapt-pkg.so.4.10
   pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.10
   pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.10
  Title: aptd crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare()
  UpgradeStatus: Upgraded to oneiric on 2011-06-02 (46 days ago)
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