Bug#517701: file descriptors leak during vgscan invocations

martin f krafft madduck at debian.org
Sun Mar 1 15:34:30 UTC 2009


Package: lvm2
Version: 2.02.44-2
Severity: important

On the last few upgrades of lvm2, I saw the following output:

Setting up lvm2 (2.02.44-2) ...
Setting up LVM Volume GroupsFile descriptor 51 (/var/lib/debtags/vocabulary.idx) leaked on vgscan invocation. Parent PID 32047: /bin/sh
File descriptor 52 (/var/lib/debtags/vocabulary) leaked on vgscan invocation. Parent PID 32047: /bin/sh
File descriptor 53 (/var/lib/debtags/package-tags.idx) leaked on vgscan invocation. Parent PID 32047: /bin/sh
  Reading all physical volumes.  This may take a while...
  /dev/cdrom: open failed: Read-only file system
  Attempt to close device '/dev/cdrom' which is not open.
  /dev/hdb: open failed: Read-only file system
  Attempt to close device '/dev/hdb' which is not open.
File descriptor 51 (/var/lib/debtags/vocabulary.idx) leaked on vgchange invocation. Parent PID 32047: /bin/sh
File descriptor 52 (/var/lib/debtags/vocabulary) leaked on vgchange invocation. Parent PID 32047: /bin/sh
File descriptor 53 (/var/lib/debtags/package-tags.idx) leaked on vgchange invocation. Parent PID 32047: /bin/sh
.

This is a bit scary. First of all, I don't know what it means, not
can I find any information about it. Second, and possibly more
importantly, what why does LVM even know about file descriptors? It
seems like lvm2 is stepping over the line and deals with data it
should not even know about. Either that's due to featuritis, some
other design errors, or there's something else gravely wrong.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/1 CPU core)
Locale: LANG=en_GB, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lvm2 depends on:
ii  libc6                        2.9-4       GNU C Library: Shared libraries
ii  libdevmapper1.02.1           2:1.02.30-2 The Linux Kernel Device Mapper use
ii  libreadline5                 5.2-3.1     GNU readline and history libraries
ii  lsb-base                     3.2-20      Linux Standard Base 3.2 init scrip

Versions of packages lvm2 recommends:
ii  dmsetup                      2:1.02.30-2 The Linux Kernel Device Mapper use

lvm2 suggests no packages.

-- debconf information:
  lvm2/kernel:
  lvm2/snapshots:


-- 
 .''`.   martin f. krafft <madduck at d.o>      Related projects:
: :'  :  proud Debian developer               http://debiansystem.info
`. `'`   http://people.debian.org/~madduck    http://vcs-pkg.org
  `-  Debian - when you have better things to do than fixing systems
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