[hardy] restart of ssh server fails in vserver

[Rolf Leggewie]

The following happens to me after I upgraded my vserver from dapper to hardy today

# /etc/init.d/ssh restart
 * Restarting OpenBSD Secure Shell server sshd [ OK ]
/etc/init.d/ssh: line 78: /proc/4366/oom_adj: Operation not permitted

[Colin Watson (cjwatson)]

What version of openssh-server do you have installed now? We already have the fix for the Debian bug report you linked to, so I'm puzzled that this is recurring.

[Rolf Leggewie (r0lf)]

yes, I was amazed by that, too. But I do have the latest hardy version. And the fix to /etc/init.d/ssh is also in place.

# dpkg -l openssh-server
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-=============================================-=============================================-==========================================================================================================
ii openssh-server 1:4.7p1-8ubuntu1 secure shell server, an rshd replacement

# grep true /etc/init.d/ssh
            log_end_msg 1 || true
            printf '%s' "$SSHD_OOM_ADJUST" >"/proc/$PID/oom_adj" || true

[c.bubel (c-bubel)]

I can confirm this.

[Rolf Leggewie (r0lf)]

still occurs for me on hardy 1:4.7p1-8ubuntu1.2

[Rolf Leggewie (r0lf)]

This still happens about 50% of the time when restarting the ssh server. Version in hardy is unchanged from last comment.

This may be pretty serious as it may have been the root cause I was unable to reach my vServer yesterday after a reboot. sshd wasn't running.

[Rolf Leggewie (r0lf)]

Adding an explicit "Listen" directive to the sshd config ensured that sshd would restart upon reboot.

[Colin Watson (cjwatson)]

Fixed in karmic (and maverick has this built into sshd upstream in such a way as to avoid this class of problem entirely). I'll open a hardy task, though, in case we have time to deal with that.

openssh (1:5.1p1-6) unstable; urgency=low

  * Open /proc/self/oom_adj with O_RDONLY or O_WRONLY as necessary, rather
    than O_RDWR.
  * Disable OOM adjustment for vserver/OpenVZ (thanks, Karl Chen; closes:
    #511771).
  * Add ufw integration (thanks, Didier Roche; see
    https://wiki.ubuntu.com/UbuntuFirewall#Integrating%20UFW%20with%20Packages;
    LP: #261884).
  * Add a comment above PermitRootLogin in sshd_config pointing to
    README.Debian.
  * Check if delgroup is present in openssh-client.postrm (closes: #530501).
  * Build with -fPIC on mips/mipsel (thanks, Luk Claes; closes: #531942).
  * Remove /var/run/sshd from openssh-server package; it will be created at
    run-time before starting the server.
  * Use invoke-rc.d in openssh-server's if-up script.

 -- Colin Watson <email address hidden> Fri, 05 Jun 2009 11:56:03 +0100

[Jamie Strandboge (jdstrand)]

Thank you for reporting this bug to Ubuntu. hardy has reached EOL
(End of Life) for this package and is no longer supported. As
a result, this bug against hardy is being marked "Won't Fix".
Please see https://wiki.ubuntu.com/Releases for currently
supported Ubuntu releases.

Please feel free to report any other bugs you may find.