appears that i have run into the same bug while upgrading my system from 1204 to 14041.
my apt-term.log file seems to match exactly. i've grabbed ps output and a few other things from the hung process, since @lkalev mentioned that he hadn't grabbed them before killing the process. the wchan (from /proc) is actually futex_wait_queue_me, though i'm not sure how helpful that will be for finding the offending bug. $ ps axf 6441 ? Sl 0:17 gksu --desktop /usr/share/applications/update-manager.desktop -- /tmp/update-manager-FlInfM/trusty 26891 ? Ss 0:00 \_ /usr/bin/sudo -H -S -p GNOME_SUDO_PASS -u root -- /tmp/update-manager-FlInfM/trusty 26892 ? Sl 5:12 \_ /usr/bin/python /tmp/update-manager-FlInfM/trusty 9686 ? S 0:00 \_ /bin/sh -c while true; do /usr/bin/xdg-screensaver reset >/dev/null 2>&1; sleep 30; done 7813 ? S 0:00 | \_ sleep 30 9737 ? S 0:00 \_ gnome-pty-helper 9738 pts/4 Ss+ 0:02 \_ /usr/bin/python /tmp/update-manager-FlInfM/trusty 31466 pts/5 Ss+ 0:06 \_ /usr/bin/dpkg --force-overwrite --status-fd 73 --unpack --auto-deconfigure /var/cache/apt/archives/liblocale-gettext-perl_1.05-7build3_amd64.deb /var/cache/apt/archives/libnet-ssleay-perl_1.58-1_amd64.deb /var/cache/apt/archives/libglib-perl_3%3a1.304-1_amd64.deb /var/cache/apt/archives/libgtk2-perl_2%3a1.249-2_amd64.deb /var/cache/apt/archives/libalgorithm-diff-xs-perl_0.04-2build4_amd64.deb /var/cache/apt/archives/libterm-readkey-perl_2.31-1_amd64.deb /var/cache/apt/archives/libuuid-perl_0.05-1_amd64.deb /var/cache/apt/archives/libtext-iconv-perl_1.7-5build2_amd64.deb /var/cache/apt/archives/libcrypt-ssleay-perl_0.58-1build1_amd64.deb /var/cache/apt/archives/libpango-perl_1.224-2_amd64.deb /var/cache/apt/archives/libxml-parser-perl_2.41-1build3_amd64.deb /var/cache/apt/archives/libsocket6-perl_0.25-1_amd64.deb /var/cache/apt/archives/libperl5.18_5.18.2-2ubuntu1_amd64.deb 31693 pts/5 S+ 0:00 \_ /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/man-db.postinst triggered /usr/share/man $ cat /proc/.../stack [<ffffffff8109ef49>] futex_wait_queue_me+0xc9/0x100 [<ffffffff8109ff60>] futex_wait+0x100/0x210 [<ffffffff810a1d4c>] do_futex+0x7c/0x1b0 [<ffffffff810a1fc7>] sys_futex+0x147/0x1a0 [<ffffffff8166a3c2>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1365939 Title: package man-db 2.6.7.1-1 trigger froze during dist upgrade from 12.04. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/man-db/+bug/1365939/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
