[pkg-fetchmail-maint] Bug#301964: It appears fetchmail is still leaking file descriptors on sockets

[John Darrah]

Package: fetchmail
Version: 6.2.5.4-1
Followup-For: Bug #301964


I've noticed that fetchmail shuts down after long periods of running.
running lsof, you can see that sockets are not being closed properly.
After a while, there are hundreds of descriptors left in limbo.


# lsof | egrep fetchmail
fetchmail 20591 fetchmail  cwd       DIR        3,1     4096          2 /
fetchmail 20591 fetchmail  rtd       DIR        3,1     4096          2 /
fetchmail 20591 fetchmail  txt       REG        3,1   193624     423926 /usr/bin/fetchmail
fetchmail 20591 fetchmail  mem       REG        0,0                   0 [heap] (stat: No such file or directory)
fetchmail 20591 fetchmail  mem       REG        3,1    17840     147172 /lib/tls/libnss_dns-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    42472     147189 /lib/tls/libnss_files-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    38424     147213 /lib/tls/libnss_nis-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    80888     147152 /lib/tls/libnsl-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    30428     147170 /lib/tls/libnss_compat-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    78788     162928 /usr/lib/libz.so.1.2.3
fetchmail 20591 fetchmail  mem       REG        3,1     9592     147142 /lib/tls/libdl-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1  1266800     146923 /lib/tls/libc-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1  1268056      81510 /usr/lib/i686/cmov/libcrypto.so.0.9.8
fetchmail 20591 fetchmail  mem       REG        3,1   253760      81539 /usr/lib/i686/cmov/libssl.so.0.9.8
fetchmail 20591 fetchmail  mem       REG        3,1    67364     147403 /lib/tls/libresolv-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    21872     147013 /lib/tls/libcrypt-2.3.5.so
fetchmail 20591 fetchmail  mem       REG        3,1    88168     195592 /lib/ld-2.3.5.so
fetchmail 20591 fetchmail    0u      CHR        1,3              358542 /dev/null
fetchmail 20591 fetchmail    1u      CHR        1,3              358542 /dev/null
fetchmail 20591 fetchmail    2u      CHR        1,3              358542 /dev/null
fetchmail 20591 fetchmail    3u     unix 0xcc68c800              434077 socket
fetchmail 20591 fetchmail    4u     sock        0,4              434086 can't identify protocol
fetchmail 20591 fetchmail    5u     sock        0,4              434181 can't identify protocol
fetchmail 20591 fetchmail    6u     sock        0,4              434270 can't identify protocol
fetchmail 20591 fetchmail    7u     sock        0,4              434311 can't identify protocol
fetchmail 20591 fetchmail    8u     sock        0,4              434391 can't identify protocol
fetchmail 20591 fetchmail    9u     IPv4     434476                 TCP dialport151.west.eskimo.net:37460->64.233.185.111:pop3s (CLOSE_WAIT)

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.12-1-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages fetchmail depends on:
ii  adduser                       3.80       Add and remove users and groups
ii  base-files                    3.1.9      Debian base system miscellaneous f
ii  debianutils                   2.15.1     Miscellaneous utilities specific t
ii  libc6                         2.3.5-8    GNU C Library: Shared libraries an
ii  libssl0.9.8                   0.9.8a-3   SSL shared libraries

Versions of packages fetchmail recommends:
ii  ca-certificates               20050804   Common CA Certificates PEM files

-- no debconf information