Has there been progress on this?  I was repairing my LVM and installing
postfix when this occurred.  Below is the CLI from the time I started
the install with apt-get to final postfix updatings.

Also, just prior to this I had reduced my swap lvm size to 8MB.  I've
included that process as well, at the bottom; below ***, just in case.

root@Jupiter:~# apt-get install lvm2 dmsetup mdadm reiserfsprogs xfsprogs
Reading package lists... Done
Building dependency tree       
Reading state information... Done
dmsetup is already the newest version.
lvm2 is already the newest version.
reiserfsprogs is already the newest version.
xfsprogs is already the newest version.
The following package was automatically installed and is no longer required:
  python-roman
Use 'apt-get autoremove' to remove it.
The following extra packages will be installed:
  postfix
Suggested packages:
  procmail postfix-mysql postfix-pgsql postfix-ldap postfix-pcre sasl2-bin 
dovecot-common postfix-cdb postfix-doc
Recommended packages:
  default-mta mail-transport-agent
The following NEW packages will be installed:
  mdadm postfix
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,500 kB of archives.
After this operation, 4,936 kB of additional disk space will be used.
Do you want to continue? [Y/n] 
Get:1 http://us.archive.ubuntu.com/ubuntu/ utopic/main mdadm amd64 3.3-2ubuntu1 
[394 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ utopic-updates/main postfix amd64 
2.11.1-1ubuntu1 [1,107 kB]             
Fetched 1,500 kB in 5min 17s (4,726 B/s)                                        
                                    
Preconfiguring packages ...
Selecting previously unselected package mdadm.
(Reading database ... 369614 files and directories currently installed.)
Preparing to unpack .../mdadm_3.3-2ubuntu1_amd64.deb ...
Unpacking mdadm (3.3-2ubuntu1) ...
Selecting previously unselected package postfix.
Preparing to unpack .../postfix_2.11.1-1ubuntu1_amd64.deb ...
Unpacking postfix (2.11.1-1ubuntu1) ...
Processing triggers for man-db (2.7.0.2-2) ...
Processing triggers for doc-base (0.10.6) ...
Processing 4 added doc-base files...
Registering documents with scrollkeeper...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Processing triggers for ufw (0.34~rc-0ubuntu4) ...
Setting up mdadm (3.3-2ubuntu1) ...
Generating mdadm.conf... done.
update-initramfs: deferring update (trigger activated)
Generating grub configuration file ...
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11460: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11460: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11460: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11460: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11470: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11470: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11470: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11470: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11480: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11480: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11480: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11480: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11490: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11490: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11490: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11490: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11542: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11542: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11542: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11542: 
/usr/sbin/grub-probe
Found linux image: /boot/vmlinuz-3.16.0-31-generic
Found initrd image: /boot/initrd.img-3.16.0-31-generic
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11756: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11756: 
/usr/sbin/grub-probe
File descriptor 3 (pipe:[1702559]) leaked on vgs invocation. Parent PID 11756: 
/usr/sbin/grub-probe
File descriptor 185 (/dev/pts/8) leaked on vgs invocation. Parent PID 11756: 
/usr/sbin/grub-probe
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
File descriptor 3 (pipe:[1702559]) leaked on lvs invocation. Parent PID 11927: 
/bin/sh
File descriptor 185 (/dev/pts/8) leaked on lvs invocation. Parent PID 11927: 
/bin/sh
done
 * Starting MD monitoring service mdadm --monitor                               
                              [ OK ] 
update-rc.d: warning: start and stop actions are no longer supported; falling 
back to defaults
Setting up postfix (2.11.1-1ubuntu1) ...
Adding group `postfix' (GID 134) ...
Done.
Adding system user `postfix' (UID 125) ...
Adding new user `postfix' (UID 125) with group `postfix' ...
Not creating home directory `/var/spool/postfix'.
Creating /etc/postfix/dynamicmaps.cf
Adding tcp map entry to /etc/postfix/dynamicmaps.cf
Adding sqlite map entry to /etc/postfix/dynamicmaps.cf
Adding group `postdrop' (GID 135) ...
Done.
setting myhostname: Jupiter
setting alias maps
setting alias database
mailname is not a fully qualified domain name.  Not changing /etc/mailname.
setting destinations: Jupiter, localhost.localdomain, localhost
setting relayhost: smtp.gmail.com
setting mynetworks: 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
setting mailbox_size_limit: 0
setting recipient_delimiter: +
setting inet_interfaces: loopback-only
setting inet_protocols: all
/etc/aliases does not exist, creating it.
WARNING: /etc/aliases exists, but does not have a root alias.

Postfix is now set up with a default configuration.  If you need to make 
changes, edit
/etc/postfix/main.cf (and others) as needed.  To view Postfix configuration
values, see postconf(1).

After modifying main.cf, be sure to run '/etc/init.d/postfix reload'.

Running newaliases
 * Stopping Postfix Mail Transport Agent postfix                                
                              [ OK ] 
 * Starting Postfix Mail Transport Agent postfix                                
                              [ OK ] 
Processing triggers for ureadahead (0.100.0-16) ...
Processing triggers for initramfs-tools (0.103ubuntu8) ...
update-initramfs: Generating /boot/initrd.img-3.16.0-31-generic
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
Processing triggers for ufw (0.34~rc-0ubuntu4) ...
Processing triggers for libc-bin (2.19-10ubuntu2.2) ...
root@Jupiter:~# /proc/<pid>/fd/*
-bash: pid: No such file or directory
root@Jupiter:~# /proc/11460/fd/*
-bash: /proc/11460/fd/*: No such file or directory

***********************************************

root@Jupiter:~# swapoff --verbose /dev/ubuntu-gnome-vg/swap_1
swapoff /dev/ubuntu-gnome-vg/swap_1
root@Jupiter:~# lvreduce /dev/ubuntu-gnome-vg/swap_1 -L 8MB
  WARNING: Reducing active logical volume to 8.00 MiB
  THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce swap_1? [y/n]: y
  Reducing logical volume swap_1 to 8.00 MiB
  Logical volume swap_1 successfully resized
root@Jupiter:~# mkswap /dev/ubuntu-gnome-vg/swap_1
mkswap: /dev/ubuntu-gnome-vg/swap_1: warning: wiping old swap signature.
Setting up swapspace version 1, size = 8188 KiB
no label, UUID=6ff48e22-63ec-42ab-9673-94ac1f84e3a9
root@Jupiter:~# swapon -va
swapon /dev/mapper/ubuntu--gnome--vg-swap_1
swapon: /dev/mapper/ubuntu--gnome--vg-swap_1: found swap signature: version 1d, 
page-size 4, same byte order
swapon: /dev/mapper/ubuntu--gnome--vg-swap_1: pagesize=4096, swapsize=8388608, 
devsize=8388608
root@Jupiter:~# cat /proc/swaps # free
Filename                                Type            Size    Used    Priority
/dev/dm-1                               partition       8188    0       -1
root@Jupiter:~# lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                            8:0    0 465.8G  0 disk 
└─sda5                         8:5    0 465.8G  0 part /mnt/500
sdb                            8:16   0 119.2G  0 disk 
├─sdb1                         8:17   0   243M  0 part /boot
└─sdb5                         8:21   0   119G  0 part 
  ├─ubuntu--gnome--vg-root   252:0    0   103G  0 lvm  /
  └─ubuntu--gnome--vg-swap_1 252:1    0     8M  0 lvm  [SWAP]
sr0                           11:0    1 998.3M  0 rom  
/media/scott/Ubuntu-GNOME 14.10 amd64
root@Jupiter:~# fdisk -l

Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x2510fb04

Device     Boot Start       End   Sectors   Size Id Type
/dev/sda1  *     2048 976769023 976766976 465.8G  f W95 Ext'd (LBA)
/dev/sda5        4096 976769023 976764928 465.8G 8e Linux LVM

Disk /dev/sdb: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x01f4bd79

Device     Boot  Start       End   Sectors  Size Id Type
/dev/sdb1  *      2048    499711    497664  243M 83 Linux
/dev/sdb2       501758 250068991 249567234  119G  5 Extended
/dev/sdb5       501760 250068991 249567232  119G 8e Linux LVM

Disk /dev/mapper/ubuntu--gnome--vg-root: 103 GiB, 110628962304 bytes, 216072192 
sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/ubuntu--gnome--vg-swap_1: 8 MiB, 8388608 bytes, 16384 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Cheers,

Scott

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https://bugs.launchpad.net/bugs/1313784

Title:
  File descriptors leaked on lvs invocation

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