.
Thread 2 (process 6142):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7e82676 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0822accc in ?? ()
#3  0x0824c60c in ?? ()
#4  0xb7e7e46b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb7cde6be in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 6110):
#0  0xb7f04b06 in _strstrip () from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#1  0xb7f7ee3f in pkgDPkgPM::ProcessDpkgStatusLine ()
   from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#2  0xb7f8050c in pkgDPkgPM::DoDpkgStatusFd ()
   from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#3  0xb7f814e8 in pkgDPkgPM::Go () from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#4  0xb7f2d558 in pkgPackageManager::DoInstallPostFork ()
   from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#5  0xb7f2d5dd in pkgPackageManager::DoInstall ()
   from /usr/lib/libapt-pkg-libc6.6-6.so.4.5
#6  0x0820c18b in ?? ()
#7  0x0820c7d2 in ?? ()
#8  0x081296bc in ?? ()
#9  0x080863b4 in ?? ()
#10 0x0818bf3c in ?? ()
#11 0x08100b78 in ?? ()
#12 0x08054278 in ?? ()
#13 0xb7c21050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#14 0x080523d1 in ?? ()