Package: openssh-client
Version: 1:5.6p1-1
Severity: normal
Since switching on ControlPersist, I have dozens of defunct ssh
processes in the process table, e.g.:
madduck 28025 0.0 0.0 40612 2784 pts/8 S+ 09:17 0:00 ssh pulse
madduck 28028 0.0 0.0 0 0 pts/8 Z+ 09:17 0:00 [ssh] <defunct>
madduck 28029 0.0 0.0 40704 1188 ? Ss 09:17 0:00 ssh pulse
The PIDs suggest thatt hese are related. It looks to me that the
second process is the clone process, which, according to strace,
only does:
open("/dev/null", O_RDWR) = 5
dup2(5, 0) = 0
dup2(5, 1) = 1
close(5) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f901060c9f0) = 20475
exit_group(0) = ?
It looks like the parent is not reaping this clone after it
terminates.
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.35-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_NZ, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages openssh-client depends on:
ii adduser 3.112 add and remove users and groups
ii debconf [debconf-2.0] 1.5.35 Debian configuration management sy
ii dpkg 1.15.8.4 Debian package management system
ii libc6 2.11.2-2 Embedded GNU C Library: Shared lib
ii libedit2 2.11-20080614-1 BSD editline and history libraries
ii libgssapi-krb5-2 1.8.3+dfsg~beta1-1 MIT Kerberos runtime libraries - k
ii libssl0.9.8 0.9.8o-1 SSL shared libraries
ii passwd 1:4.1.4.2-1 change and administer password and
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
Versions of packages openssh-client recommends:
ii openssh-blacklist 0.4.1 list of default blacklisted OpenSS
ii openssh-blacklist-extra 0.4.1 list of non-default blacklisted Op
ii xauth 1:1.0.4-1 X authentication utility
Versions of packages openssh-client suggests:
ii gtk-led-askpass [ssh-askpass] 0.10-2 GTK+ password dialog suitable for
pn keychain <none> (no description available)
pn libpam-ssh <none> (no description available)
-- Configuration Files:
/etc/ssh/ssh_config changed [not included]
-- no debconf information
--
.''`. martin f. krafft <madduck@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
Attachment:
digital_signature_gpg.asc
Description: Digital signature (see http://martin-krafft.net/gpg/)